US Standards AWG Conductor 7f701fda b4c3 4d49 a25d Dc3a5454ab3b

8/9/2019 US Standards AWG Conductor 7f701fda b4c3 4d49 a25d Dc3a5454ab3b

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Table of Contents

TAB LE OF CONTENT S

PAGE

Sec t ion One - In t roduc t ion 1

Company Profile 2

Technical Service and Support 3

Quality Assurance 4

Notes 5

Sec t ion Tw o - Genera l Techn ica l In fo rm at i on 7Installation Information 8

Installation Methods 9

Single Core Cables in Parallel 12

Rating Factors 13

Bending Radii and Duct Sizes 15

Pulling Tension 16

Notes 17

Sect ion Thr ee Medium Vol t age TR-XLPE Cables 19

Explanatory Information - Construction 20

- Installation Tests 22

- Distributed Temperature Measuring System (DTS) 24

- Current Ratings 25

- Rating Factors 26Product Sheets (See Section Three Contents Page 19 for Product Sheets Listing)


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Introduction Section One

SECTION ONE - IN TRODUCTION

PAGE

Company Prof i le 2

Techn ic a l Se rv ice and Suppor t 3

Qua l i t y Assurance 4

N o t e s 5

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Section One Introduction

COMPANY PROFIL EPower cables have been manufactured and tested at the Olex New Zealand Limited Bell Block factory on the outskirts of New Plymouth for more than 36 years. Established in 1967 as a joint venture between Tolley and Son and Canada Wire andCable Company of Toronto, it was known as Canzac until 1984 when it was purchased by the Pacific Dunlop Group, one of Australia's largest international companies, and became part of the Pacific Dunlop Cables Group. In 1999 Olex Cables (NewZealand), together with other Pacific Dunlop Cables Group businesses, was bought by a management buy out consortium,and is now known as Olex New Zealand Limited, a Subsidiary of Olex Holdings Pty Limited.Olex Holdings Pty Limited, a world leader in cable technology and production, has manufacturing facilities in New Plymouth,Melbourne, and Sydney. With over 50 years experience behind it, Olex employs more than 1500 people and has thefinancial backing, the expertise and the commitment to maintain and expand its position as a world leader in cabletechnology, manufacturing and installation.At its New Plymouth factory, Olex New Zealand Limited produces a wide range of electrical power cables, ranging frombuilding wires and control cables to power cables with rated voltages up to 35 kV. Complementing this range is a wideselection of power and data/communications cables manufactured by other Olex Holdings factories.Olex has proven its expertise and commitment to quality and service in fulfilling contracts in many New Zealand and

international markets. The company has a strong commitment to further growth and expansion internationally.With this background, Olex is well placed to retain its leading role in terms of customer service, quality and research.

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TECHNI CAL SERVICE AND SUPPORTOlexs extensive technical resources mean that a cable can be designed to meet the exact needs of a customer. Thestandard range of cables may contain a cable that will do the required job, but Olex's commitment is to ensure that a cable'scapabilities meet the precise requirements of the installation.This may mean that a standard cable needs to be modified for optimum performance or have a new feature added - this is anormal part of the Olex service.Olex's technical support does not finish with the successful design and production of the cable. In addition, a comprehensivecable advisory service is also offered. Technical staff are available to assist in providing expert solutions to all types of cableproblems and inquiries.

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NOTES

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Section One Introduction

NOTES

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General Technical Information Section Two

SECTION TWO - GENERAL TECHNI CALINFORMATION

PAGE

I n s t a l l a t i o n I n f o r m a t i o n 8

I n s t a l l a t i o n M e t h o d s 9

Single Core Cables in Para l le l 12

Rat ing Fac t o r s 13

Bending Radi i and Duct Sizes 15

Pul l ing Tension 16

N o t e s 17

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Section Two General Technical Information

INSTALLATION INFORMATION

GeneralAll cables must be installed to comply with the latest National Wiring Regulations.

M o i s t u r eOlex cables are manufactured in conditions that exclude moisture, as it is difficult to remove from a finished cable. It isimportant that precautions are taken during installation to ensure that moisture is not permitted to enter the cable. Cut endsor opened areas must be protected from moisture at all times, including during pulling in. Cables, after cutting, must be re-sealed for storage, by an effective method such as a heat shrinkable cable cap.

Single Core CablesThe following points relating to single core cables should be noted:1. Single core cables carrying the phase currents of a single circuit must be installed as closely as possible together, tominimise inductive reactance and voltage drop. The preferred formation for three phase conductors is a "trefoil" or cloverleaf pattern although flat touching formation is also acceptable. Jackets should be in contact with one another in either case.2. A single core cable generates an alternating magnetic field around itself which can cause large increases in voltage dropand power loss due to "transformer effect" when ferrous metal (iron and steel) is allowed to encircle the cable. Steel rackingor ladder will not induce this effect, but the following must be observed:a. Cable cleats may be of wood, plastic, or non-ferrous metal but steel saddles should not be used on single cores.b. Where three single phase cables pass through a steel bulkhead, they must all pass through the same hole. Whereglanding is required, it is usual to cut out a panel and replace this with a non-ferrous (metal or plastic) plate in which the threeor four glands are mounted.

Cable Suppor tUnder fault conditions, single core cables used as phase conductors in a multi-phase system may be subjected to large

electromechanical forces which tend to drive them apart. Generally, properly designed cleats spaced at 1500 mm intervalswill provide adequate support to the cable under normal operating conditions. However special consideration may berequired if fault currents in excess of 15 kA are anticipated.

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INSTALLATION METHODS

Figure 2 .1 Graph ica l Represen ta t ions o f Methods o f Ins ta l l a t iona) Enclosed

Cables installed in conduit or trunking or other similar enclosure.

b) Completely Surrounded by Thermal Insulation

Cables either within an enclosureor unenclosed, completelysurrounded by thermal insulation

c) Partially Surrounded by Thermal Insulation

Cables either within an enclosure

or unenclosed, partiallysurrounded by thermal insulation

d) Unenclosed, Clipped Directly to a Surface

Cables installed directly in air,fixed to a wall, floor, ceiling 1 or similar surface where air circulation around the cables isrestricted.

Note:1. Refer to Table 2.1 for derating factors which apply for single circuits of cables installed under a ceiling or similar horizontalsurface.

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INSTALLATION METHODS (CONT.)

Figure 2 .1 (con t . ) Graph ica l Represen ta t ions o f Met hods o f I n s t a l l a t i o n

e) Unenclosed, Spaced Away from a Surface

1

0.3D0.3D

D

0.3D 0.3D 0.3D

0.5D

Cables installed with minimumspacings as shown directly in air,and supported on ladders 2, racks,perforated 3 or unperforated trays 4 etc, or suspended from a catenarywire.

f) Buried Direct in the Ground

Cables buried directly in theground. The depth of burial is

measured from the surface to thecentre of the cable or group of cables.

g) Laid in Underground Ducts , Pipes or Condui ts

Cables installed in undergroundenclosures. The depth of burial ismeasured from the surface to thecentre of the duct or group of ducts.

Notes:1. D = Cable OD (or Width, in the case of a flat cable).2. Ladder support is one where the supporting metalwork which provides impedance to air flow occupies less than 10% of the plan area under the cables.3. Perforated trays are those in which not less than 30% of the surface area is removed by perforation.4. Refer to Table 2.2 for derating factors which apply even for single circuits of cables installed on perforated or unperforatedtrays.

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INSTALLATION METHODS (CONT.)

Figure 2 .2 Min imum Spac ings in Ai r t o Avoid Dera t ingMethod of Installation Horizontal Spacings Vertical Spacingsa) Single Core Cables

Cables spaced away fromsurfaces and supported onladders, racks, etc. or suspended from a catenarywire, such that impedance to air flow around the cables is notgreater than 10%.

D

D

D

4D4D

Cables spaced away fromsurfaces and supported onperforated or unperforated trays

such that air flow around thecables is partially restricted.

2D

2D

4D

Cables fixed directly to a wall,floor, ceiling or similar surfacesuch that air circulation isrestricted.

2D

2D

6D 6D

b) Multicore Cables

Cables spaced away fromsurfaces and supported onladders, racks, etc. or suspended from a catenarywire, such that impedance to air

tflow around the cables is nogreater than 10%.

0.5D

D

2D

4D

4D

Cables spaced away fromsurfaces and supported onperforated or unperforated trayssuch that air flow around thecables is partially restricted.

2D

4D

Cables fixed directly to a wfloor, ceiling

all,or similar surface

such that air circulation isrestricted.

2D

6D

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SINGL E CORE CAB LES IN PARAL LELThe following are the recommended arrangements of single core cables in parallel. Non-symmetrical arrangements result indifferent impedances and hence unequal current sharing between parallel legs of the same phase. This should be avoidedas it could lead to overheating of some cables.Neutral conductors of Three phase circuits should be located so as not to disturb the symmetry of the groups.

Figure 2 .3 Arrangem ent s for Equal Current Shar ing of Single CoreCables in Para l le l

Single Phase Three Phase

TwoConductorsper Phase

or

or

ThreeConductors

er PhaseNot Recommended

p

Four Conductorsper Phase

or or

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RATING FACTORS

Table 2 .1 Bunched Ci rcu i t s o f S ing le Core o r Mul t i co re Cab les in Ai r o r in Wir ing Enc losures

Arrangement of CablesSingle Layer on Wall or Floor

Single Layer under a Ceiling

No of Circuits1 Bunched

in Air Bunched

on a Surface or Enclosed Touching Spaced2,3 Touching Spaced2,3

1 1.00 1.00 1.00 1.00 0.95 0.95

2 0.87 0.80 0.85 0.94 0.81 0.85

3 0.75 0.70 0.79 0.90 0.72 0.85

4 0.72 0.65 0.75 0.90 0.68 0.85

5 0.70 0.60 0.73 0.90 0.66 0.85

6 0.67 0.57 0.72 0.90 0.64 0.85

7 - 0.54 0.72 0.90 0.63 0.85

8 - 0.52 0.71 0.90 0.62 0.85

9 - 0.50 0.70 0.90 0.61 0.85

10 - 0.48 0.70 0.90 0.61 0.85

12 - 0.45 0.70 0.90 0.61 0.85

14 - 0.43 0.70 0.90 0.61 0.85

16 - 0.41 0.70 0.90 0.61 0.85

18 - 0.39 0.70 0.90 0.61 0.85

20or more

- 0.38 0.70 0.90 0.61 0.85

Notes:1. Where a bunch of cables consist of n loaded conductors, it may be considered as n/2 circuits of two loaded conductors or n/3 circuits of three loaded conductors.2. Spaced refers to a clearance of one cable diameter between adjacent cables.3. Refer to Figure 2.2 for spacings which avoid derating.

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RATI NG FACTORS (CONT .)

Table 2 .2 Cab les on Trays , Rack s o r Other Suppor t sSingle Core Cables Multicore Cables

No. of Circui ts1 per Tray or Rack

No of Cables1 per Tray or RackType of Support Arrangement No. of

Traysor

Racks1 2 3

Arrangement No. of Trays

or Racks

1 2 3 4 6 9

123

0.950.920.91

0.850.830.82

0.840.790.76

123

0.970.970.97

0.850.840.83

0.780.760.75

0.750.730.72

0.710.680.66

0.680.630.61

Unperfor -atedTrays2

D

123

0.980.950.94

0.960.910.90

0.940.870.85

D 123

0.970.970.97

0.960.950.94

0.940.920.91

0.930.900.89

0.900.860.84

---

1

23

0.97

0.940.93

0.89

0.850.84

0.87

0.810.79

1

23

1.0

1.01.0

0.88

0.870.86

0.82

0.800.79

0.78

0.760.75

0.76

0.730.71

0.73

0.680.66

Perforated

Trays2

D

123

1.00.970.96

0.980.930.92

0.960.890.86

D 123

1.01.01.0

1.00.990.98

0.980.960.95

0.950.920.91

0.910.870.85

---

12

0.940.92

0.850.83

--

12

1.01.0

0.880.88

0.820.81

0.770.76

0.730.72

0.720.70

VerticalPerforatedTrays3

D

12 1.0 0.90 0.86

1.0 0.91 0.89

D

12 1.0 0.91 0.88 0.87 0.86 -

1.0 0.91 0.89 0.88 0.87 -

123

1.00.950.95

0.950.900.89

0.940.880.85

123

1.01.01.0

0.870.860.85

0.820.800.79

0.800.780.76

0.790.760.73

0.780.730.70

Ladder Racks,Cleatsetc2

D

123 0.97 0.94 0.90

1.00.97

1.00.95

1.00.93

D

3 1.0 0.98 0.97 0.96 0.93 -

12

1.01.0

1.00.99

1.00.98

1.00.97

1.00.96

--

The factors are to be applied to spaced from surface in air current ratings.

its consisting of groups of two or three loaded single core cables or multicore cables having

3. Back to back vertical trays shall have a horizontal spacing of not less than 230 mm.

Notes:1. The factors given apply to circutwo or three loaded conductors.2. Trays or ladder type supports shall have a vertical spacing of not less than 300 mm.

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BENDING RADII A ND DUCT SIZES

Recom mended Bend ing Rad ius Fac t o r sThe safe bending radius for an electric cable is limited by the flexibility of its insulation and Jacketing material.When a cable is being installed it may be pulled around several curves in different directions and subjected to dynamicstresses which could cause damage. Consequently the bending radius around which a cable may be pulled is greater thanthat into which it can be set in its final position.The following recommended minimum bending radii are expressed as a function of the cable diameter and refer to the insideof the curve. In all cases, bending radii should be as large as practicable.

Recom mended Min imum Bending Rad i iCable Type (choose the highest value of all relevant construction features) During Installation (F) Set (F)

Nylon Covered 30 20

HDPE Jacket 25 15

Helical Copper or Brass taped 18 12

Steel Wire Armoured 18 12

Solid Aluminium Conductors 12 8

All Cable Types

Compacted or Shaped Stranded Conductors 12 8

MV XLPE Cables Single Core and Multicore Cables 18 12

LV (0.6/1 kV) Cables PVC/XLPE Insulation 9 6

Minimum Bending Rad iusR = F * Dwhere, R = Bending Radius (mm), D = Cable Diameter (mm), and F = Factor from above table.

Duct SizesDucts are another important consideration affecting the pulling operation. Selection of the appropriate duct should be basedon internal duct diameter to suit a cable size and wall thickness to prevent deformation during duct installation. The internalfinish of the installed ducting should be smooth to prevent cable Jacket damage during installation. During cable installationthe use of graphite or other commercially available pulling lubricants can also prevent Jacket damage and reduce pullingtensions. The following duct sizes are recommended:

Du c t Se l e c t i o nHeavy Duty Rigid PVC Conduit Cable Diameter

Nominal Size (mm) Single Cable (mm) Three Cables (mm) Four Cables (mm)

50 Up to 30 - -

63 30 to 38 - -

65 38 to 47 Up to 24 Up to 21

80 47 to 52 24 to 27 21 to 23

100 52 to 69 27 to 35 23 to 31

150 69 to 99 35 to 51 31 to 44

200 99 to 142 51 to 73 44 to 63

250 Above 142 Above 73 Above 63

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PULLI NG TENSIONWhere a cable is to be pulled in using a winch and steel wire rope, the rope may be secured to the cable by any of thefollowing:1. A cable stocking of steel wire braid2. A pulling eye attached to the cable conductor 3. A pulling eye over the complete cable end4. A pulling eye formed from the armour wiresThe maximum tension which may be used is limited by the tensile strength of the conductors or armour wires, or by thegripping capability of the cable stocking, depending on the method used.

St ress L imi t s fo r Cab le Mate r i a l sMaterial Maximum Safe Tensile Stress (S) kN/mm2

Stranded Copper Conducto r 0.07

Stranded Aluminium Conductor 0.05

Solid Aluminium Conductor 0.03

Galvanised Mild Steel Armour 0.40

Aluminium Wire Armour 0.04

Method o f Ca lcu la t ionUsing values of S from table above :

Limited by Conductor Tc = N * Ac *S

Where Tc = Maximum Pulling Tension (kN), N = No. of Conductors, Ac = Cross-sectional Area of one Conductor (mm2), and

S = Maximum Safe Tensile Stress for Conductor (kN/mm 2).Limited by Armour Ta = 2.47 * da *(Da + da) * S

Where Ta = Maximum Pulling Tension (kN), S = Maximum Safe Tensile Stress for Armour (kN/mm2), da = Nominal Diameter

of Armour Wire (mm), and Da = Nominal Diameter under Armour (mm).

Limited by StockingTs = 0.120 * D

Where Ts = Maximum Pulling Tension (kN), and D = the Overall Diameter of the Cable (mm).

Overa l l L imi t ing Tens ionCable OD (mm) Maximum Pulling Tension (kN) (mm)

0 to 15 5

15 to 25 10

25 to 50 15

50 and over 20

The safe pulling tension is the smallest of the calculated values.

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NOTES

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NOTES

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Medium Voltage TR-XLPE Cables Section Three

SECTION TH REE MEDIU M VOLT AGE TR-XL PECABLES

PAGE

Ex p l a n a t o r y I n f o r m a t i o nConstruction 20

Installation Tests 22

Distributed Temperature System (DTS) 24

Current Ratings 25

Rating Factors 26

Produc t Shee t sSingle core Cu 5kV 100% & 133%, Copper Tape, PVC Jacketed Cables 28

Single core Cu 8kV 100%, Copper Tape, PVC Jacketed Cables 30








Single core Cu 15kV 100%, Concentric neutral, PVC Jacketed Cables 46Single core Al 15kV 100%, Concentric neutral, PVC Jacketed Cables 48

Single core Cu 15kV 133%, Concentric neutral, PVC Jacketed Cables 50

Single core Al 15kV 133%, Concentric neutral, PVC Jacketed Cables 52





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Section Three Medium Voltage TR-XLPE Cables

CONSTRUCTIONOlex Medium Voltage TR-XLPE cables are designed in accordance with ICEA S-93-639/NEMA WC74 and specific customer requirements where applicable to provide optimum performance for the end application.Olex also manufactures to other international standard such as IEC 60502.2, AS/NZS 1429.1, BS 6622 and AEIC CS8.

Componen t Det a i lConductor Conductors are made of either copper to ASTM B8 or aluminium to ASTM B231. To assist in producing a smooth circular profile at the interface between the conductor screen and the insulation, compressed stranded conductors are used.

Insulation and Semiconduct ive ScreensAll Olex Medium Voltage TR-XLPE insulated cables are produced under clean room conditions, using the triple extrusionprocess in which the conductor screen, insulation and insulation screen are extruded simultaneously through a singleextrusion head. The surface of the insulation is never exposed to the atmosphere or to any material other than the adjacentsemiconductive screens, ensuring that the interfaces between the materials are completely free of voids and contamination.

A sophisticated dimension control device uses X-Rays which are fired through the three layers of polymer to accuratelymeasure the individual layer thicknesses; this ensures that the dimensions of all layers are constant and concentric throughthe entire length of the cable.

Cross sectional view of a TripleExtrusion Head

EX-RAY-800 Dimensional Controller

The cross-linking process is carried out in a totally water-free environment, using inert gas rather than steam as the curing

medium. This dry-cure process ensures a high integrity insulation and leads to excellent electrical performance.

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CONSTRU CTION (CONT.)Insulation and Semiconduc tive Screens (cont.)The functional components of this triple layer are:1. Conductor screen, a semiconductive cross-linked polymeric material applied over the conductor and bonded to the

insulation. This provides a smooth, circular interface between the conductor and insulation and eliminates stressconcentrations.

2. Insulation , a clean, low density, high molecular weight cross-linked polyethylene. A tree-retardant grade, which hasshown improved performance in accelerated ageing tests, is used. This leads to superior long term reliability.

TR-XLPE

XLPE

Projected usefulTR-XLPE cables

more than 40

life of

years

3. Insulation screen,a layer of semiconductive cross-linked polymeric material which adheres firmly to the insulation, yetremains readily strippable by hand for jointing and terminating.

Metal ScreenA screen of plain annealed copper tape or wire is helically applied over the semiconductive insulation screen, ie, over thecore of a single core cable or each core of a three core cable.This screen acts as a return path for capacitive charging current and induced circulating currents under normal operatingconditions. The screen will also carry short circuit current in the event of an electrical fault in the circuit.

Core Assembly (Three Core Cable)The cores are laid up and the interstices filled with a non-hygroscopic material to achieve a circular cable cross section. Thelaid up core assembly is bound with helically applied non-hygroscopic tapes.

Bedding and Armour (Three Core Cable)In three core armoured cables, a bedding layer of PVC is extruded over the core assembly followed by a layer of helically

applied galvanised mild steel wires.Outer JacketA Jacket of PVC, or LLDPE, is extruded over the metal screen of a single core cable, or over the core assembly or steel wirearmour of three core cables.Alternative protective coverings may be applied depending on the environment in which the cable is installed, eg, MDPE,HDPE, Megolon or a dual Jacket of PVC/HDPE.

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INSTALL ATION TESTS

GeneralAfter the cable has been installed and prior to commencing terminating or jointing, it is desirable to carry out checks toestablish that the cable has not been damaged during the installation process, namely a Jacket Integrity Test and anInsulation Resistance Test of Primary InsulationAfter completion of the tests, if the terminating or jointing is not being commenced straight away, the cable ends should beresealed with heat shrinkable end caps or similar to prevent the ingress of moisture.

Ol e x N e w Z e a l an d L i m i t e d R e c o m m e n d a t i o n s f o r Te s t s A f t e r Comple t e Ins t a l l a t i on o f TR-XLPE Medium Vol t age Cab les

Advice Concerning Tests After InstallationIf a test is carried out after installation, please note that the test is to detect defects caused during installation. After installation, the test is applied to the cable and accessories.

High Voltage D.C. Test After Install ationThe D.C. testing of the primary insulation is not recommended. There are two important reasons for not using a High VoltageDC Test.1. The DC field in the cable and accessories applies different electric stresses (both in magnitude and in physical location) toan AC field, so much so, that it is considered to be a poor process to find faults.2. The application of High Voltage DC leads to premature failure of aged and wet primary insulation. This has been provenin the Laboratory and has been proven repeatedly in the field.

Safety RequirementsAs the voltages used in these tests are potentially lethal, appropriate safety measures must be employed to ensure that thesafety of all people involved in the testing process is not compromised.Cable ends to be isolated shall be disconnected from the supply and protected from contact to supply, or ground, or

accidental contact. Safety measures shall include, and shall not necessarily be limited to, earthing of cable under test prior to and after test voltages are applied, erection of safety barriers with warning signs, and an open communication channelbetween testing personnel.The testing guidelines outlined in this document are Olex New Zealand Limiteds recommendations only, and Olex NewZealand Limited cannot be held responsible for ensuring the safe implementation of these recommendations.

Jacket Integrity TestA Jacket integrity test (eg, 1000 V minimum insulation resistance tester) applied between the outer-most metallic layer andearth can identify after-installation damage to the non-metallic outer Jacket.The measured value should be read after application of the voltage for 1 minute. Ideally the measured value should becorrected for temperature to a standard value at 20C if correction factors are available. A rough guide is that the insulation

resistance decreases to one half of the value for a 10C rise in temperature. The cable temperature should be recordedalong with the measured values.Measured values of Insulation Resistance for the Jacket should be greater than calculated values. Calculated values for new cable range from 1.5 M /km to 4.0 M /km @ 20C for PVC Jackets and from 120 M /km to 300 M /km @ 20C for PE Jackets. Values are highest for small cables and thick Jackets and lowest for large cables and thin Jackets (factory testsshow that measured values are up to an order of magnitude greater than the calculated values).Earth the screens after an Insulation Resistance Test on a Jacket for at least 5 minutes before handling or performing other tests.

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IN STALL ATI ON TESTS (CONT .)Insulation Resistance Test of Primary InstallationDC voltages up to 5 kV, used when performing Insulation Resistance Tests on Primary Insulation, are not considered to be aHigh voltage DC test.

An Insulation Resistance Test of the Primary Insulation should be carried out with an insulation resistance tester, with aminimum DC voltage of 2.5 kV for 1.9/3.3 kV cables or 5 kV for cables above 1.9/3.3 kV and up to 19/33 kV. The insulationtest should be carried out in the Guarded Mode and the instrument should have a minimum full-scale range of 500 Gohms.Guarding should be applied at both ends and a spare core used for the connection lead to the guard at the far end. Anyconductor or cable core used as a guard lead must have a resistance to ground of greater than 10 kohms. The measuredvalue should be read after application of the voltage for 1 minute. Ideally the measured value should be corrected for temperature to a standard value at 20C if correction factors are available. A rough guide is that the insulation resistancedecreases to one half of the value for a 10C rise in temperature. The cable temperature should be recorded along with themeasured values.Measured values of insulation resistance for the primary insulation should be greater than calculated values. Calculatedvalues for new cable range from 2,400 M /km to 18,000 M /km at 20C. Values are highest for small conductors andhigher voltages and lowest for large conductors and lower voltages (factory tests show that measured values are up to anorder of magnitude greater than the calculated values).This test should be performed prior to any high voltage tests. Short the conductors to the screens after an InsulationResistance Test on Primary Insulation for at least 10 minutes before handling or performing other tests.If the instrument used for the above insulation resistance testing is a Megger, Type BM 25, or equivalent, then the twofollowing tests should be considered.1. A 10 minute Polarisation Index Test - this test is commonly used as a replacement for the standard insulation resistancetest.2. A 5 Minute Step Voltage Test - the test should use five equal steps up to the maximum test voltage of 2.5 kV for 1.9/3.3 kVcables or 5 kV for cables greater than 1.9/3.3 kV up to 19/33 kV. This test is becoming increasingly used on cables of 6.35/11 kV and greater.Both the above tests can be carried out automatically with the Megger, BM 25 unit and guarding should be applied at bothends as above.

High Voltage A.C. Test after Install ationAn A.C. voltage test at power frequency should be applied for 24 hours with the normal operating voltage of the system tothe primary insulation.Some customers have objected to a 24 hour test at only the operating voltage of the cable and would prefer a test using ahigher voltage for a shorter time. This can be achieved by a Very Low Frequency (VLF) HV AC Test, and the equipment nowexists for hire in New Zealand to perform this. The VLF HV AC Test is becoming recognised throughout the world as areplacement test for the old HV DC Test or the 24 hour AC test at normal operating voltage, although not many standardshave details in them at this point in time. VLF Tests are carried out at a frequency in the band of 0.1 to 0.02 Hz. The VLFTest Set must be of adequate power to test the measured cable capacitance at the frequency chosen. The suggestedmaximum VLF test voltage for new cable is between 2.7 and 3.0 times the cable operating voltage (Uo), for a minimum of 15minutes. Where possible, a 30 minute testing time is now recommended as international research has shown this to give ahigher confidence. Refer to the test procedure of IEEE-400-2, May 2004 draft.For existing or aged cables being recommissioned after repair or alterations, the VLF Test Voltage should be a maximum of 2.3 times the cable operating voltage (Uo), for 15 minutes.

DocumentationThe values obtained in the above tests should be recorded in a cable log so that they are available for comparison purposesin the future.

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MEDIUM VOLTA GE RATIN G FACTORS

Table 3 .1 Ai r Tempera t u re Var ia t ion Air Temperature (C)

20 25 35 40 45 50 55

Rating Factor 1.18 1.14 1.05 1.00 0.95 0.89 0.84

Table 3 .2 So i l Tempera t u re Var ia t ionSoil Temperature (C)

10 15 20 25 30 35 40

Rating Factor 1.11 1.07 1.04 1.00 0.96 0.92 0.88

Table 3 .3 Dep th o f Bur ia l Var ia t ionDepth of Burial (m)

0.8 1.00 1.00 1.00

1.0 0.98 0.98 0.99

1.25 0.96 0.95 0.97

1.5 0.95 0.94 0.96

1.75 0.94 0.92 0.96

2.0 0.92 0.91 0.95

2.5 0.91 0.89 0.94

3.0 (or more) 0.90 0.88 0.93

Table 3 .4 So i l Thermal Res i s t iv i t y Var ia t ionSoil ThermalResistivity

(K.m/W)

0.8 1.12 1.16 1.04 1.06

0.9 1.08 1.11 1.03 1.04

1.0 1.05 1.07 1.02 1.03

1.2 1.00 1.00 1.00 1.00

1.5 0.92 0.91 0.95 0.94

2.0 0.81 0.80 0.88 0.87

2.5 0.74 0.73 0.83 0.81

3.0 0.69 0.67 0.78 0.76

Page 26


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MEDIU M VOLT AGE RATI NG FACTORS (CONT .)

Table 3 .5 Groups o f C i rcu i t s La id Di rec tSingle Core Cables

spacing spacing

Multicore Cables

spacing

Touching Spacing (m) Spacing (m)

No. of Circuits

Trefoil Flat 0.15 0.30 0.45 0.60

Touching

0.15 0.30 0.45 0.60

2 0.78 0.80 0.82 0.86 0.89 0.91 0.80 0.85 0.89 0.91 0.93

3 0.66 0.68 0.71 0.77 0.80 0.83 0.68 0.76 0.81 0.84 0.87

4 0.59 0.62 0.65 0.72 0.77 0.80 0.62 0.71 0.77 0.81 0.84

5 0.55 0.58 0.61 0.68 0.74 0.78 0.57 0.66 0.73 0.78 0.82

6 0.52 0.55 0.58 0.66 0.72 0.76 0.54 0.64 0.71 0.77 0.817 0.49 0.52 0.56 0.64 0.70 0.75 0.51 0.61 0.69 0.75 0.79

8 0.47 0.50 0.54 0.63 0.69 0.74 0.49 0.59 0.68 0.74 0.79

9 0.45 0.48 0.52 0.61 0.68 0.74 0.47 0.58 0.67 0.73 0.78

10 0.44 0.47 0.51 0.61 0.68 0.73 0.45 0.57 0.66 0.73 0.78

11 0.43 0.46 0.50 0.60 0.67 0.73 0.44 0.55 0.65 0.72 0.77

12 0.41 0.45 0.49 0.59 0.67 0.72 0.43 0.54 0.64 0.72 0.77

Table 3 .6 Groups o f C i rcu i t s In Underground Duc t sMulticore Cables in Single-way Ducts

or Single Core Cables in Multiway Ducts

spacingspacing

Single Core Cables in Single-way Ducts

spacing

Spacing (m) Spacing (m)

No. of Circuits

Touching

0.30 0.45 0.60

Touching

0.45 0.60

2 0.88 0.91 0.93 0.94 0.85 0.88 0.90

3 0.80 0.85 0.88 0.90 0.75 0.80 0.83

4 0.76 0.81 0.85 0.88 0.70 0.77 0.80

5 0.72 0.78 0.83 0.86 0.67 0.74 0.78

6 0.69 0.76 0.81 0.85 0.64 0.72 0.76

7 0.67 0.75 0.80 0.84 0.62 0.70 0.75

8 0.65 0.74 0.79 0.83 0.61 0.69 0.74

9 0.63 0.72 0.78 0.83 0.59 0.68 0.73

10 0.62 0.72 0.78 0.82 0.58 0.67 0.73

11 0.61 0.71 0.77 0.82 0.57 0.67 0.72

12 0.60 0.70 0.77 0.81 0.57 0.66 0.72

Page 27


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SINGLE CORE CU 5 K V 10 0% & 133 % CABLESCopper conductor Class B compressed strandedSCXLPE conductor screenTR-XLPE insulation Triple extruded, Dry-cureSCXLPE insulation screenCopper Tape screenPVC Jacketed

Product Sheet No. 42-101 M ANominal Diameters Copper Tape ScreenConductor

Size Insulation Insulation Screen Area Size

Thickness of PVC Jacket

Min pt

Nominal OverallDiameter

Linear Mass

Nominal

(mm) (mm) mm (mm x mm) (mm) (mm) (kg/m)

6 AWG 10.1 11.7 3.0 20 x 0.075 1.40 15.0 0.33

4 AWG 11.3 12.9 3.0 20 x 0.075 1.40 16.1 0.42

2 AWG 12.7 14.3 3.0 20 x 0.075 1.40 17.5 0.57

1 AWG 13.8 15.4 3.0 20 x 0.075 1.40 18.6 0.67

1/0 AWG 14.6 16.2 3.0 20 x 0.075 1.40 19.4 0.79

2/0 AWG 15.7 17.3 3.0 20 x 0.075 1.40 20.6 0.94

3/0 AWG 17.0 18.6 3.0 20 x 0.075 1.78 22.6 1.16

4/0 AWG 18.4 20.0 3.0 20 x 0.075 1.78 24.0 1.39

250 kcmil 19.8 21.4 3.0 20 x 0.075 1.78 25.4 1.60

300 kcmil 21.3 22.9 3.0 20 x 0.075 1.78 26.9 1.86350 kcmil 22.6 24.2 6.3 25 x 0.125 1.78 28.4 2.17

400 kcmil 23.7 25.3 6.3 25 x 0.125 1.78 29.5 2.43

500 kcmil 25.4 27.0 6.3 25 x 0.125 1.78 31.3 2.92

600 kcmil 28.0 30.0 6.3 25 x 0.125 1.78 34.2 3.48

700 kcmil 29.7 31.7 6.3 25 x 0.125 1.78 36.0 3.99

750 kcmil 30.1 32.1 6.3 25 x 0.125 1.78 36.3 4.22

800 kcmil 31.4 33.4 6.3 25 x 0.125 1.78 37.6 4.49

1000 kcmi l 33.9 35.9 6.3 25 x 0.125 1.78 40.1 5.45

Issue: November 2004

Made to ICEA S-93-639/NEMA WC74

Note:1. Subject to confirmation, similar cables can be manufactured to other specifications.

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SINGLE CORE CU 5 K V 10 0% & 133 % CABLESCopper conductor Class B compressed strandedSCXLPE conductor screenTR-XLPE insulation Triple extruded, Dry-cureSCXLPE insulation screenCopper Tape screenPVC Jacketed

Product Sheet No. 42-101 M BCurrent Ratings (A)Conductor

SizeConductor AC

Resistance at 50 Hzand 90C

Conductor toScreen

Capacitance

Nominal PVCDuct Size

(Ohm/km) (F/km) (mm)

6 AWG 1.71 0.23 50 96 104 91

4 AWG 1.08 0.27 50 126 133 117

2 AWG 0.677 0.31 50 167 172 150

1 AWG 0.540 0.34 50 193 195 170

1/0 AWG 0.426 0.37 50 221 222 194

2/0 AWG 0.338 0.40 50 256 252 220

3/0 AWG 0.268 0.44 50 297 285 249

4/0 AWG 0.214 0.49 50 342 323 282

250 kcmil 0.181 0.53 50 382 355 310

300 kcmil 0.152 0.57 50 428 391 342350 kcmil 0.130 0.61 50 473 426 371

400 kcmil 0.114 0.65 50 515 457 398

500 kcmil 0.0927 0.70 63 586 513 453

600 kcmil 0.0782 0.78 63 661 565 500

700 kcmil 0.0680 0.83 63 726 611 540

750 kcmil 0.0640 0.84 63 751 630 557

800 kcmil 0.0605 0.88 63 784 652 577

1000 kcmi l 0.0503 0.96 65 884 721 648



Note:1. The values in this table are for installation conditions of: Ambient Air Temperature 40 CSoil Temperature 25 CSoil Thermal Resistivity 1.2 K.m/WDepth of Burial 0.8 m

Screens bonded both ends

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SINGLE CORE CU 8 K V 10 0% CAB LESCopper conductor Class B compressed strandedSCXLPE conductor screenTR-XLPE insulation Triple extruded, Dry-cureSCXLPE insulation screenCopper Tape screenPVC Jacketed




Min pt


Linear Mass

Nominal


6 AWG 11.4 13.0 3.0 20 x 0.075 1.40 16.2 0.36

4 AWG 12.5 14.1 3.0 20 x 0.075 1.40 17.4 0.46

2 AWG 13.9 15.5 3.0 20 x 0.075 1.40 18.8 0.61

1 AWG 15.0 16.6 3.0 20 x 0.075 1.40 19.9 0.71

1/0 AWG 15.9 17.5 3.0 20 x 0.075 1.40 20.7 0.83

2/0 AWG 17.0 18.6 3.0 20 x 0.075 1.78 22.6 1.02

3/0 AWG 18.2 19.8 3.0 20 x 0.075 1.78 23.9 1.21

4/0 AWG 19.6 21.2 3.0 20 x 0.075 1.78 25.3 1.44

250 kcmil 21.0 22.6 3.0 20 x 0.075 1.78 26.7 1.65

300 kcmil 22.5 24.1 6.3 25 x 0.125 1.78 28.4 1.96350 kcmil 23.8 25.4 6.3 25 x 0.125 1.78 29.7 2.23

400 kcmil 25.0 27.0 6.3 25 x 0.125 1.78 31.2 2.51

500 kcmil 26.7 28.7 6.3 25 x 0.125 1.78 32.9 3.02

600 kcmil 29.2 31.2 6.3 25 x 0.125 1.78 35.5 3.56

700 kcmil 31.0 33.0 6.3 25 x 0.125 1.78 37.2 4.06

750 kcmil 31.3 33.3 6.3 25 x 0.125 1.78 37.6 4.30

800 kcmil 32.6 34.6 6.3 25 x 0.125 1.78 38.9 4.57

1000 kcmi l 35.1 37.1 6.3 25 x 0.125 1.78 41.4 5.55




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SizeConductor AC


Conductor toScreen

Capacitance



6 AWG 1.71 0.19 50 98 104 91

4 AWG 1.08 0.22 50 128 134 117

2 AWG 0.677 0.26 50 169 172 151

1 AWG 0.540 0.28 50 195 196 171

1/0 AWG 0.426 0.30 50 224 222 194

2/0 AWG 0.338 0.33 50 260 251 220

3/0 AWG 0.268 0.36 50 300 285 250

4/0 AWG 0.214 0.39 50 346 323 283

250 kcmil 0.181 0.43 50 385 355 311

300 kcmil 0.152 0.46 50 432 392 342350 kcmil 0.130 0.49 50 476 426 371

400 kcmil 0.114 0.52 63 519 458 406

500 kcmil 0.0926 0.56 63 591 514 454

600 kcmil 0.0781 0.62 63 665 566 500

700 kcmil 0.0678 0.67 63 729 612 541

750 kcmil 0.0638 0.67 63 754 631 558

800 kcmil 0.0603 0.70 65 788 653 586

1000 kcmi l 0.0501 0.76 65 888 723 649





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Min pt


Linear Mass

Nominal


6 AWG 12.7 14.3 3.0 20 x 0.075 1.40 17.5 0.40

4 AWG 13.8 15.4 3.0 20 x 0.075 1.40 18.7 0.50

2 AWG 15.2 16.8 3.0 20 x 0.075 1.40 20.1 0.65

1 AWG 16.3 17.9 3.0 20 x 0.075 1.40 21.2 0.75

1/0 AWG 17.1 18.7 3.0 20 x 0.075 1.78 22.8 0.91

2/0 AWG 18.3 19.9 3.0 20 x 0.075 1.78 23.9 1.06

3/0 AWG 19.5 21.1 3.0 20 x 0.075 1.78 25.2 1.26

4/0 AWG 20.9 22.5 3.0 20 x 0.075 1.78 26.6 1.49

250 kcmil 22.3 23.9 3.0 20 x 0.075 1.78 28.0 1.71

300 kcmil 23.8 25.4 6.3 25 x 0.125 1.78 29.7 2.02350 kcmil 25.1 27.1 6.3 25 x 0.125 1.78 31.4 2.32

400 kcmil 26.2 28.2 6.3 25 x 0.125 1.78 32.5 2.58

500 kcmil 28.0 30.0 6.3 25 x 0.125 1.78 34.2 3.09

600 kcmil 30.5 32.5 6.3 25 x 0.125 1.78 36.8 3.63

700 kcmil 32.3 34.3 6.3 25 x 0.125 1.78 38.5 4.14

750 kcmil 32.6 34.6 6.3 25 x 0.125 1.78 38.9 4.38

800 kcmil 33.9 35.9 6.3 25 x 0.125 1.78 40.2 4.65

1000 kcmi l 36.4 38.4 6.3 25 x 0.125 1.78 42.7 5.65




Page 32


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SizeConductor AC


Conductor toScreen

Capacitance



6 AWG 1.71 0.17 100 10450 92

4 AWG 1.08 0.19 50 130 134 118

2 AWG 0.677 0.22 50 171 172 151

1 AWG 0.540 0.24 50 198 196 172

0.426 0.26 50 2281/0 AWG 221 195

2/0 AWG 0.338 0.28 50 262 251 221

3/0 AWG 0.268 0.31 50 302 286 251

4/0 AWG 0.214 0.33 50 348 324 284

250 kcmil 0.181 0.36 50 388 355 311

300 kcmil 0.152 0.39 50 435 392 342350 kcmil 0.130 0.42 63 480 427 378

400 kcmil 0.114 0.44 63 522 459 406

500 kcmil 0.0925 0.47 63 594 514 455

600 kcmil 0.0780 0.52 63 668 566 501

700 kcmil 0.0677 0.56 65 732 613 549

750 kcmil 0.0637 0.56 65 758 632 567

800 kcmil 0.0601 0.59 65 791 654 586

1000 kcmi l 0.0499 0.64 65 892 724 650





Page 33


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39/68




SizeConductor AC


Conductor toScreen

Capacitance



2 AWG 0.677 0.19 50 175 172 152

1 AWG 0.540 0.21 50 201 195 172

1/0 AWG 0.426 0.22 50 231 222 195

2/0 AWG 0.338 0.24 50 265 252 222

3/0 AWG 0.268 0.26 50 306 286 251

4/0 AWG 0.214 0.28 50 352 324 284

250 kcmil 0.181 0.30 50 392 356 311

300 kcmil 0.152 0.33 63 439 393 349

350 kcmil 0.130 0.35 63 484 427 379

400 kcmil 0.114 0.36 63 525 459 407500 kcmil 0.0923 0.39 63 598 515 456

600 kcmil 0.0778 0.43 65 671 567 509

700 kcmil 0.0675 0.46 65 736 614 550

750 kcmil 0.0635 0.46 65 762 633 568

800 kcmil 0.0599 0.48 65 795 655 587

1000 kcmi l 0.0494 0.52 65 896 723 648



Note:1. The values in this table are for installation conditions of: Ambient Air Temperature 40 CSoil Temperature 25 CSoil Thermal Resistivity 1.2 K.m/WDepth of Burial 0.8 mScreens bonded both ends

Page 35


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Min pt


Linear Mass

Nominal


2 AWG 19.3 20.9 3.0 20 x 0.075 1.78 24.9 0.84

1 AWG 20.4 22.0 3.0 20 x 0.075 1.78 26.0 0.95

1/0 AWG 21.2 22.8 3.0 20 x 0.075 1.78 26.8 1.08

2/0 AWG 22.3 23.9 3.0 20 x 0.075 1.78 28.0 1.24

3/0 AWG 23.6 25.2 6.3 25 x 0.125 1.78 29.4 1.48

4/0 AWG 25.0 27.0 6.3 25 x 0.125 1.78 31.2 1.75

250 kcmil 26.4 28.4 6.3 25 x 0.125 1.78 32.6 1.98

300 kcmil 27.9 29.9 6.3 25 x 0.125 1.78 34.1 2.26

350 kcmil 29.2 31.2 6.3 25 x 0.125 1.78 35.4 2.54

400 kcmil 30.3 32.3 6.3 25 x 0.125 1.78 36.6 2.81500 kcmil 32.0 34.0 6.3 25 x 0.125 1.78 38.3 3.33

600 kcmil 34.6 36.6 6.3 25 x 0.125 1.78 40.8 3.89

700 kcmil 36.3 38.3 6.3 25 x 0.125 1.78 42.6 4.41

750 kcmil 36.7 39.1 6.3 25 x 0.125 1.78 43.3 4.68

800 kcmil 38.0 40.4 6.3 25 x 0.125 2.54 46.2 5.10

1000 kcmi l 40.5 42.9 6.3 25 x 0.125 2.54 48.7 6.10




Page 36


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SizeConductor AC


Conductor toScreen

Capacitance



2 AWG 0.677 0.16 50 177 172 152

1 AWG 0.540 0.17 50 204 196 173

1/0 AWG 0.426 0.19 50 234 222 196

2/0 AWG 0.338 0.20 50 269 252 222

3/0 AWG 0.268 0.22 50 310 286 252

4/0 AWG 0.214 0.23 63 357 325 290

250 kcmil 0.181 0.25 63 396 356 318

300 kcmil 0.151 0.27 63 443 393 350

350 kcmil 0.130 0.29 63 487 428 380

400 kcmil 0.114 0.30 63 529 460 408500 kcmil 0.0922 0.32 65 602 516 464

600 kcmil 0.0776 0.36 65 675 568 510

700 kcmil 0.0673 0.38 65 740 615 551

750 kcmil 0.0632 0.38 65 766 635 569

800 kcmil 0.0596 0.40 65 799 654 586

1000 kcmi l 0.0492 0.43 80 900 725 652




Page 37


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Min pt


Linear Mass

Nominal


1 AWG 22.4 24.0 6.3 25 x 0.125 1.78 28.3 1.08

1/0 AWG 23.2 24.8 6.3 25 x 0.125 1.78 29.1 1.21

2/0 AWG 24.4 26.0 6.3 25 x 0.125 1.78 30.2 1.38

3/0 AWG 25.6 27.6 6.3 25 x 0.125 1.78 31.9 1.61

4/0 AWG 27.0 29.0 6.3 25 x 0.125 1.78 33.3 1.86

250 kcmil 28.4 30.4 6.3 25 x 0.125 1.78 34.7 2.10

300 kcmil 29.9 31.9 6.3 25 x 0.125 1.78 36.2 2.38

350 kcmil 31.2 33.2 6.3 25 x 0.125 1.78 37.5 2.66

400 kcmil 32.3 34.3 6.3 25 x 0.125 1.78 38.6 2.94

500 kcmil 34.1 36.1 6.3 25 x 0.125 1.78 40.3 3.46600 kcmil 36.6 38.6 6.3 25 x 0.125 1.78 42.8 4.02

700 kcmil 38.4 40.8 6.3 25 x 0.125 2.54 46.6 4.74

750 kcmil 38.7 41.1 6.3 25 x 0.125 2.54 47.0 4.98

800 kcmil 40.0 42.4 6.3 25 x 0.125 2.54 48.3 5.25

1000 kcmi l 42.5 44.9 6.3 25 x 0.125 2.54 50.8 6.30




Page 38


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SizeConductor AC


Conductor toScreen

Capacitance



1 AWG 0.540 0.16 50 206 196 173

1/0 AWG 0.426 0.17 50 236 223 197

2/0 AWG 0.338 0.18 63 272 253 227

3/0 AWG 0.268 0.19 63 313 287 257

4/0 AWG 0.214 0.21 63 359 325 291

250 kcmil 0.181 0.22 63 399 357 318

300 kcmil 0.151 0.24 63 446 393 351

350 kcmil 0.130 0.25 63 490 428 381

400 kcmil 0.114 0.26 65 532 460 415

500 kcmil 0.0921 0.28 65 605 516 464600 kcmil 0.0775 0.31 65 678 569 511

700 kcmil 0.0670 0.33 65 742 613 550

750 kcmil 0.0630 0.33 65 768 633 567

800 kcmil 0.0594 0.35 80 801 655 589

1000 kcmi l 0.0490 0.37 80 903 727 653




Page 39


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Min pt


Linear Mass

Nominal


1 AWG 25.5 27.5 6.3 25 x 0.125 1.78 31.7 1.26

1/0 AWG 26.3 28.3 6.3 25 x 0.125 1.78 32.5 1.39

2/0 AWG 27.4 29.4 6.3 25 x 0.125 1.78 33.7 1.57

3/0 AWG 28.7 30.7 6.3 25 x 0.125 1.78 34.9 1.78

4/0 AWG 30.1 32.1 6.3 25 x 0.125 1.78 36.3 2.04

250 kcmil 31.5 33.5 6.3 25 x 0.125 1.78 37.7 2.28

300 kcmil 33.0 35.0 6.3 25 x 0.125 1.78 39.2 2.57

350 kcmil 34.3 36.3 6.3 25 x 0.125 1.78 40.5 2.85

400 kcmil 35.4 37.4 6.3 25 x 0.125 1.78 41.6 3.13

500 kcmil 37.1 39.1 6.3 25 x 0.125 1.78 43.4 3.66600 kcmil 39.7 42.1 6.3 25 x 0.125 2.54 47.9 4.43

700 kcmil 41.4 43.8 6.3 25 x 0.125 2.54 49.7 4.97

750 kcmil 41.8 44.2 6.3 25 x 0.125 2.54 50.0 5.20

800 kcmil 43.1 45.5 6.3 25 x 0.125 2.54 51.3 5.50

1000 kcmi l 45.6 48.0 6.3 25 x 0.125 2.54 53.8 6.55




Page 40


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SizeConductor AC


Conductor toScreen

Capacitance



1 AWG 0.540 0.14 63 209 196 177

1/0 AWG 0.426 0.14 63 240 223 201

2/0 AWG 0.338 0.15 63 275 253 227

3/0 AWG 0.268 0.17 63 316 287 258

4/0 AWG 0.214 0.18 63 363 326 291

250 kcmil 0.181 0.19 63 402 357 319

300 kcmil 0.151 0.20 65 449 394 357

350 kcmil 0.130 0.22 65 494 429 387

400 kcmil 0.114 0.23 65 535 461 416

500 kcmil 0.0920 0.24 65 608 517 465600 kcmil 0.0773 0.26 80 680 567 512

700 kcmil 0.0668 0.28 80 745 614 553

750 kcmil 0.0628 0.28 80 771 634 571

800 kcmil 0.0592 0.29 80 804 656 591

1000 kcmi l 0.0488 0.31 80 906 729 655




Page 41


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Min pt


Linear Mass

Nominal


1/0 AWG 27.5 29.5 6.3 25 x 0.125 1.78 33.8 1.46

2/0 AWG 28.7 30.7 6.3 25 x 0.125 1.78 34.9 1.64

3/0 AWG 29.9 31.9 6.3 25 x 0.125 1.78 36.2 1.85

4/0 AWG 31.3 33.3 6.3 25 x 0.125 1.78 37.6 2.11

250 kcmil 32.7 34.7 6.3 25 x 0.125 1.78 39.0 2.36

300 kcmil 34.2 36.2 6.3 25 x 0.125 1.78 40.5 2.65

350 kcmil 35.5 37.5 6.3 25 x 0.125 1.78 41.8 2.94

400 kcmil 36.7 38.7 6.3 25 x 0.125 1.78 42.9 3.22

500 kcmil 38.4 40.8 6.3 25 x 0.125 2.54 46.6 3.94

600 kcmil 40.9 43.3 6.3 25 x 0.125 2.54 49.2 4.53700 kcmil 42.7 45.1 6.3 25 x 0.125 2.54 50.9 5.05

750 kcmil 43.0 45.4 6.3 25 x 0.125 2.54 51.3 5.30

800 kcmil 44.3 46.7 6.3 25 x 0.125 2.54 52.6 5.60

1000 kcmi l 46.8 49.2 6.3 25 x 0.125 2.54 55.1 6.65



Note:

1. Subject to confirmation, similar cables can be manufactured to other specifications.

Page 42


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SizeConductor AC


Conductor toScreen

Capacitance



1/0 AWG 0.426 0.14 63 241 223 201

2/0 AWG 0.338 0.15 63 276 253 228

3/0 AWG 0.268 0.16 63 317 287 258

4/0 AWG 0.214 0.17 63 364 326 292

250 kcmil 0.181 0.18 65 403 357 325

300 kcmil 0.151 0.19 65 450 394 357

350 kcmil 0.130 0.20 65 495 429 388

400 kcmil 0.114 0.21 65 537 461 416

500 kcmil 0.0919 0.23 65 609 515 464

600 kcmil 0.0772 0.25 80 681 567 513700 kcmil 0.0668 0.26 80 746 614 554

750 kcmil 0.0627 0.27 80 772 634 571

800 kcmil 0.0591 0.28 80 805 657 591

1000 kcmi l 0.0487 0.30 100 908 729 662




Page 43


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Min pt


Linear Mass

Nominal


1/0 AWG 31.4 33.4 6.3 25 x 0.125 1.78 37.6 1.69

2/0 AWG 32.5 34.5 6.3 25 x 0.125 1.78 38.7 1.87

3/0 AWG 33.7 35.7 6.3 25 x 0.125 1.78 40.0 2.09

4/0 AWG 35.1 37.1 6.3 25 x 0.125 1.78 41.4 2.36

250 kcmil 36.5 38.5 6.3 25 x 0.125 1.78 42.8 2.61

300 kcmil 38.0 40.4 6.3 25 x 0.125 2.54 46.3 3.10

350 kcmil 39.3 41.7 6.3 25 x 0.125 2.54 47.6 3.40

400 kcmil 40.5 42.9 6.3 25 x 0.125 2.54 48.7 3.69

500 kcmil 42.2 44.6 6.3 25 x 0.125 2.54 50.4 4.24

600 kcmil 44.7 47.1 6.3 25 x 0.125 2.54 53.0 4.84700 kcmil 46.5 48.9 6.3 25 x 0.125 2.54 54.7 5.40

750 kcmil 46.8 49.2 6.3 25 x 0.125 2.54 55.1 5.65

800 kcmil 48.1 50.5 6.3 25 x 0.125 2.54 56.4 5.95

1000 kcmi l 50.6 53.0 6.3 25 x 0.125 2.54 58.9 7.00



Note:


Page 44


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SizeConductor AC


Conductor toScreen

Capacitance



1/0 AWG 0.426 0.12 63 243 223 202

2/0 AWG 0.338 0.13 65 279 254 232

3/0 AWG 0.268 0.14 65 320 288 263

4/0 AWG 0.213 0.15 65 367 326 297

250 kcmil 0.180 0.16 65 406 358 325

300 kcmil 0.151 0.17 65 453 393 356

350 kcmil 0.130 0.18 80 497 427 389

400 kcmil 0.114 0.19 80 538 459 418

500 kcmil 0.0918 0.20 80 611 515 467

600 kcmil 0.0771 0.21 80 684 568 513700 kcmil 0.0666 0.23 80 748 616 555

750 kcmil 0.0626 0.23 100 774 636 580

800 kcmil 0.0590 0.24 100 808 658 599

1000 kcmi l 0.0484 0.25 100 910 731 663




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SINGLE CORE CU 15 K V 10 0% CAB LESCopper conductor Class C compressed strandedSCXLPE conductor screenTR-XLPE insulation Triple extruded, Dry-cureSCXLPE insulation screenCopper wire screenPVC Jacketed

Product Sheet No. 331-11 M ANominal Diameters Copper Wire ScreenConductor

Size Insulation Insulation Screen No Size


Min pt


Linear Mass

Nominal

(mm) (mm) (mm) (mm) (mm) (kg/m)

Full Neutral

2 AWG 17.0 18.6 16 1.63 1.78 25.9 1.041 AWG 18.1 19.7 13 2.05 1.78 27.8 1.25

1/0 AWG 18.9 20.5 16 2.05 1.78 28.6 1.47

2/0 AWG 20.0 21.6 13 2.59 1.78 30.9 1.78

3/0 AWG 21.3 22.9 16 2.59 1.78 32.1 2.12

4/0 AWG 22.7 24.3 16 2.91 1.78 34.2 2.57

One Third Neutral

250 kcmil 24.1 25.7 21 1.63 1.78 33.0 2.17

350 kcmil 26.9 28.9 18 2.05 1.78 37.0 2.89500 kcmil 29.7 31.7 17 2.59 1.78 41.3 3.95

600 kcmil 32.3 34.3 20 2.59 1.78 43.8 4.64

650 kcmil 33.2 35.2 21 2.59 1.78 44.7 4.94

750 kcmil 34.4 36.4 20 2.91 1.78 46.6 5.65

1000 kcmi l 38.2 40.6 21 3.26 2.54 53.1 7.50




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SINGLE CORE CU 15 K V 10 0% CAB LESCopper conductor Class B compressed strandedSCXLPE conductor screenTR-XLPE insulation Triple extruded, Dry-cureSCXLPE insulation screenCopper wire screenPVC Jacketed


SizeConductor AC


Conductor toScreen

Capacitance



Full Neutral

2 AWG 0.677 0.19 50 181 174 155

1 AWG 0.540 0.21 50 210 197 175

1/0 AWG 0.426 0.22 50 240 223 197

2/0 AWG 0.338 0.24 63 278 253 225

3/0 AWG 0.268 0.26 63 318 285 251

4/0 AWG 0.214 0.28 63 364 320 279

One Third Neutral

250 kcmil 0.181 0.30 63 400 353 313

350 kcmil 0.130 0.35 63 492 420 368500 kcmil 0.092 0.39 65 598 493 424

600 kcmil 0.077 0.43 65 661 535 455

650 kcmil 0.072 0.45 65 689 553 469

750 kcmil 0.063 0.46 65 732 580 488

1000 kcmi l 0.049 0.52 80 823 630 528




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SINGLE CORE AL 15 K V 10 0% CABLESAluminium conductor Class B compressed strandedSCXLPE conductor screenTR-XLPE insulation Triple extruded, Dry-cureSCXLPE insulation screenCopper wire screenPVC Jacketed




Min pt


Linear Mass

Nominal


Full Neutral

2 AWG 17.0 18.6 10 1.63 1.78 25.9 0.711 AWG 18.1 19.7 13 1.63 1.78 27.0 0.83

1/0 AWG 18.9 20.5 16 1.63 1.78 27.8 0.94

2/0 AWG 20.0 21.6 13 2.05 1.78 29.8 1.10

3/0 AWG 21.5 23.1 16 2.05 1.78 31.2 1.28

4/0 AWG 22.7 24.3 13 2.59 1.78 33.5 1.53

One Third Neutral

250 kcmil 24.3 25.9 13 1.63 1.78 33.2 1.22

350 kcmil 26.5 28.5 18 1.63 1.78 35.8 1.54500 kcmil 29.7 31.7 16 2.05 1.78 39.9 1.99

600 kcmil 32.3 34.3 19 2.05 1.78 42.4 2.30

750 kcmil 34.4 36.4 24 2.05 1.78 44.8 2.73

1000 kcmi l 38.7 41.1 20 2.59 2.54 52.2 3.66



Note:


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SizeConductor AC


Conductor toScreen

Capacitance



Full Neutral

2 AWG 1.12 0.19 50 141 135 121

1 AWG 0.887 0.21 50 163 154 137

1/0 AWG 0.707 0.22 50 186 173 154

2/0 AWG 0.559 0.24 50 216 197 175

3/0 AWG 0.441 0.26 63 249 224 201

4/0 AWG 0.352 0.28 63 287 253 226

One Third Neutral

250 kcmil 0.297 0.30 63 316 279 251

350 kcmil 0.212 0.34 63 385 332 297500 kcmil 0.150 0.39 65 479 400 357

600 kcmil 0.125 0.43 65 536 439 389

750 kcmil 0.101 0.46 65 604 486 426

1000 kcmi l 0.0768 0.53 80 708 550 476




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Min pt


Linear Mass

Nominal


Full Neutral

2 AWG 19.3 20.9 16 1.63 1.78 28.2 1.131 AWG 20.4 22.0 13 2.05 1.78 30.1 1.34

1/0 AWG 21.2 22.8 16 2.05 1.78 30.9 1.56

2/0 AWG 22.3 23.9 13 2.59 1.78 33.2 1.87

3/0 AWG 23.6 25.2 16 2.59 1.78 34.4 2.22

4/0 AWG 25.0 27.0 16 2.91 1.78 36.8 2.70

One Third Neutral

250 kcmil 26.4 28.4 21 1.63 1.78 35.7 2.31

350 kcmil 29.2 31.2 18 2.05 1.78 39.3 3.01500 kcmil 32.0 34.0 17 2.59 1.78 43.6 4.08

600 kcmil 34.6 36.6 20 2.59 1.78 46.1 4.78

650 kcmil 35.5 37.5 21 2.59 1.78 47.0 5.10

750 kcmil 36.7 39.1 20 2.91 1.78 49.2 5.85

1000 kcmi l 40.5 42.9 21 3.26 2.54 55.3 7.70




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SizeConductor AC


Conductor toScreen

Capacitance



Full Neutral

2 AWG 0.677 0.16 50 183 173 155

1 AWG 0.540 0.17 63 212 197 178

1/0 AWG 0.426 0.19 63 242 223 201

2/0 AWG 0.338 0.20 63 280 252 226

3/0 AWG 0.268 0.22 63 320 285 253

4/0 AWG 0.214 0.23 63 367 320 282

One Third Neutral

250 kcmil 0.181 0.25 63 403 353 315

350 kcmil 0.130 0.29 65 494 420 373500 kcmil 0.0920 0.32 65 601 494 428

600 kcmil 0.0774 0.36 65 664 536 460

650 kcmil 0.0717 0.37 65 693 555 474

750 kcmil 0.0628 0.38 80 738 582 491

1000 kcmi l 0.0487 0.43 100 829 633 521




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Min pt


Linear Mass

Nominal


Full Neutral

2 AWG 19.3 20.9 10 1.63 1.78 28.2 0.801 AWG 20.4 22.0 13 1.63 1.78 29.3 0.92

1/0 AWG 21.2 22.8 16 1.63 1.78 30.1 1.03

2/0 AWG 22.3 23.9 13 2.05 1.78 32.1 1.20

3/0 AWG 23.8 25.4 16 2.05 1.78 33.5 1.38

4/0 AWG 25.0 27.0 13 2.59 1.78 36.2 1.66

One Third Neutral

250 kcmil 26.6 28.6 13 1.63 1.78 35.9 1.36

350 kcmil 28.8 30.8 18 1.63 1.78 38.1 1.66500 kcmil 32.0 34.0 16 2.05 1.78 42.2 2.12

600 kcmil 34.6 36.6 19 2.05 1.78 44.7 2.44

750 kcmil 36.7 38.7 24 2.05 1.78 47.1 2.87

1000 kcmi l 41.0 43.4 20 2.59 2.54 54.5 3.83



Note:


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Page 53



SizeConductor AC


Conductor toScreen

Capacitance



Full Neutral

2 AWG 1.12 0.16 50 143 135 121

1 AWG 0.887 0.17 50 164 154 137

1/0 AWG 0.707 0.19 63 187 173 157

2/0 AWG 0.559 0.20 63 217 197 178

3/0 AWG 0.441 0.22 63 250 224 202

4/0 AWG 0.352 0.23 63 289 253 227

One Third Neutral

250 kcmil 0.297 0.25 63 318 279 252

350 kcmil 0.212 0.28 65 387 333 302500 kcmil 0.150 0.32 65 481 400 359

600 kcmil 0.125 0.36 65 538 439 391

750 kcmil 0.101 0.38 80 607 487 428

1000 kcmi l 0.0767 0.44 80 711 551 481





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Page 54





Min pt


Linear Mass

Nominal


Full Neutral

1 AWG 22.4 24.0 13 2.05 1.78 32.2 1.421/0 AWG 23.2 24.8 16 2.05 1.78 33.0 1.64

2/0 AWG 24.4 26.0 13 2.59 1.78 35.2 1.96

3/0 AWG 25.6 27.6 16 2.59 1.78 36.8 2.34

4/0 AWG 27.0 29.0 16 2.91 1.78 38.9 2.80

One Third Neutral

250 kcmil 28.4 30.4 21 1.63 1.78 37.7 2.41

350 kcmil 31.2 33.2 18 2.05 1.78 41.4 3.12

500 kcmil 34.1 36.1 17 2.59 1.78 45.6 4.20600 kcmil 36.6 38.6 20 2.59 1.78 48.1 4.91

650 kcmil 37.5 39.5 21 2.59 1.78 49.0 5.20

750 kcmil 38.7 41.1 20 2.91 2.54 52.9 6.15

1000 kcmi l 42.5 44.9 21 3.26 2.54 57.4 7.85



Note:



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Page 55



SizeConductor AC


Conductor toScreen

Capacitance



Full Neutral

1 AWG 0.540 0.16 63 213 197 179

1/0 AWG 0.426 0.17 63 244 223 201

2/0 AWG 0.338 0.18 63 281 252 227

3/0 AWG 0.268 0.19 63 322 285 254

4/0 AWG 0.214 0.21 65 368 320 285

One Third Neutral

250 kcmil 0.181 0.22 63 405 354 316

350 kcmil 0.130 0.25 65 496 420 375

500 kcmil 0.0919 0.28 65 603 495 432600 kcmil 0.0773 0.31 80 667 537 462

650 kcmil 0.0716 0.32 80 696 556 476

750 kcmil 0.0627 0.33 80 736 580 495

1000 kcmi l 0.0485 0.37 100 833 636 526





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Page 56





Min pt


Linear Mass

Nominal


Full Neutral

1 AWG 22.4 24.0 13 1.63 1.78 31.3 1.001/0 AWG 23.2 24.8 16 1.63 1.78 32.1 1.11

2/0 AWG 24.4 26.0 13 2.05 1.78 34.1 1.29

3/0 AWG 25.8 27.8 16 2.05 1.78 35.9 1.50

4/0 AWG 27.0 29.0 13 2.59 1.78 38.2 1.76

One Third Neutral

250 kcmil 28.6 30.6 13 1.63 1.78 37.9 1.46

350 kcmil 30.9 32.9 18 1.63 1.78 40.2 1.77

500 kcmil 34.1 36.1 16 2.05 1.78 44.2 2.24600 kcmil 36.6 38.6 19 2.05 1.78 46.7 2.57

750 kcmil 38.7 41.1 24 2.05 2.54 51.2 3.21

1000 kcmi l 43.0 45.4 20 2.59 2.54 56.5 3.98





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Page 57



SizeConductor AC


Conductor toScreen

Capacitance



Full Neutral

1 AWG 0.887 0.16 63 165 154 140

1/0 AWG 0.707 0.17 63 189 173 158

2/0 AWG 0.559 0.18 63 218 197 179

3/0 AWG 0.441 0.19 63 252 224 202

4/0 AWG 0.352 0.21 65 290 253 230

One Third Neutral

250 kcmil 0.297 0.22 63 319 279 252

350 kcmil 0.212 0.25 65 389 333 303

500 kcmil 0.150 0.28 65 483 400 360600 kcmil 0.125 0.31 65 540 440 393

750 kcmil 0.101 0.33 80 606 486 431

1000 kcmi l 0.0766 0.38 100 713 553 477



Note:1. The values in this table are for installation conditions of:

Ambient Air Temperature 40 CSoil Temperature 25 CSoil Thermal Resistivity 1.2 K.m/WDepth of Burial 0.8 mScreens bonded both ends


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Min pt


Linear Mass

Nominal


Full Neutral

1/0 AWG 27.5 29.5 16 2.05 1.78 37.7 1.872/0 AWG 28.7 30.7 13 2.59 1.78 39.9 2.20

3/0 AWG 29.9 31.9 16 2.59 1.78 41.2 2.56

4/0 AWG 31.3 33.3 16 2.91 1.78 43.2 3.03

One Third Neutral

250 kcmil 32.7 34.7 21 1.63 1.78 42.0 2.65

350 kcmil 35.5 37.5 18 2.05 1.78 45.7 3.38

500 kcmil 38.4 40.8 17 2.59 2.54 51.9 4.68

600 kcmil 40.9 43.3 20 2.59 2.54 54.4 5.40650 kcmil 41.8 44.2 21 2.59 2.54 55.3 5.75

750 kcmil 43.0 45.4 20 2.91 2.54 57.2 6.45

1000 kcmi l 46.8 49.2 21 3.26 2.54 61.7 8.20





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Min pt


Linear Mass

Nominal


Full Neutral

1/0 AWG 27.5 29.5 16 1.63 1.78 36.8 1.352/0 AWG 28.7 30.7 13 2.05 1.78 38.8 1.53

3/0 AWG 30.1 32.1 16 2.05 1.78 40.3 1.72

4/0 AWG 31.3 33.3 13 2.59 1.78 42.6 1.99

One Third Neutral

250 kcmil 32.9 34.9 13 1.63 1.78 42.2 1.70

350 kcmil 35.2 37.2 18 1.63 1.78 44.5 2.03

500 kcmil 38.4 40.8 16 2.05 2.54 50.5 2.72

600 kcmil 40.9 43.3 19 2.05 2.54 53.1 3.07750 kcmil 43.0 45.4 24 2.05 2.54 55.5 3.53

1000 kcmi l 47.3 49.7 20 2.59 2.54 60.8 4.33





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SizeConductor AC


Conductor toScreen

Capacitance



Full Neutral

1/0 AWG 0.707 0.14 63 191 173 158

2/0 AWG 0.559 0.15 65 220 197 182

3/0 AWG 0.441 0.16 65 254 224 206

4/0 AWG 0.352 0.17 65 291 253 231

One Third Neutral

250 kcmil 0.297 0.18 65 321 279 257

350 kcmil 0.212 0.20 65 391 333 304

500 kcmil 0.150 0.23 80 483 400 364

600 kcmil 0.125 0.25 80 540 439 397750 kcmil 0.101 0.27 100 608 487 434

1000 kcmi l 0.0765 0.30 100 716 555 484



Note:1. The values in this table are for installation conditions of: Ambient Air Temperature 40 C

Soil Temperature 25 CSoil Thermal Resistivity 1.2 K.m/WDepth of Burial 0.8 mScreens bonded both ends


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NOTES

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Documents

US Standards AWG Conductor 7f701fda b4c3 4d49 a25d Dc3a5454ab3b