s&c Alduti-Rupter* Switches Three-Pole Side-Break Standard-Duty Style Outdoor Distribution I Reciprocating Operating Mechanism

14..4 kv and 25 kv

INSTRUCTIONS For l’nstallation

1 INTRODUCTION I CAUTION: The equipment covered by this publication must be selected for a specific application and it must be installed, operated, and maintained by qualified persons who are thoroughly trained and who understand any hazards that may be involved. This publication is written only for such qualified persons and is not intended to be a substitute for adequate training and experience in safety procedures for this type of equipment.

Operating Considerations Since, in most applications, these interrupter switches are capable of switching rated continuous load currents at full voltage, no interlocking with secondary protective equipment is required.

Because circuit making and breaking is involved in the normal operation of these interrupter switches, precautionary “partway” opeaing or closing is undesir- able. Just swing the operating handle through its full stroke without hesitation. Do not assume that the operating handle position necessarily indicates the open or closed position of the interrupter-switch blades. Upon completion of an opening or closing operation, visually check the position of the interrupter-switch blades to determine that the intended position has been attained.. Then tag and padlock the operating handle in accord- ance with standard system operating procedures. In all cases, make certain that the operating handle is locked before “walking away.” Note: These interrupter switches are not intended for breaking fault currents.

The Erection Drawing Included with this instruction sheet is a detailed erection drawing for the applicable mounting configuration. If a Standard Mounting Arrangement is to be used, this erection drawing is a printed sheet. This same sheet is also furnished when a Standard Minor Modification of a Standard Mounting Arrangement is to be used.

Drawings for Standard Mounting Arrangements show only minimum or suggested locating dimensions for the vertical operating-pipe rod guides, the bell crank, and

SUDerSedeS lnstructlon Sheet 761-555 dated 3-12-84 Q 1985

__

S&C ELECTRIC COMPANY. Chicago S&C ELECTRIC CANADA LTD - Rexdale

the operating handle. Specific locations are to be determined either on the job or by the user’s engineering department.

Inspection Study the erection drawing carefully and check the bill of material to be sure that all parts are at hand. Standard Minor Modification parts are shown in the bill of material under the suffix specified: “-S2,” “-S6,” “-S10,” “-S13,” “-S14,” or “-S15.”

When a Standard Mounting Arrangement is specified, the shipment will include:

Three switch poles; Operating-pipe sections for interphase, horizontal connecting, and vertical sections; Operating-mechanism components, such as rod guides, bell-crank assembly, operating handle assem- bly, etc.-each tagged and keyed to the bill of material for ready identification. If a Standard Minor Modification of a Standard

Mounting Arrangement is specified, the appropriate parts, as identified in the bill of material under suffix

be included with the operating-mechanism components. Specifically, the modifications designated by these

suffixes are:

“-S2,” ‘“S6,” “-S10,” “-S13,” “-S14,” or “-S15,” will

-s2 -S6

-s10

-S 13

-S14

-S15

One porcelain insulator unit in vertical shaft Key interlock-single lock for “locked-open’’ application One 1” diameter fiberglass insulating section in vertical shaft One-inch diameter fiberglass interphase operating shaft One-inch diameter fiberglass interphase operating shaft and one 1” diameter fiberglass insulating section in vertical shaft Three 10’“’’ sections of 1%” IPS vertical pipe (in lieu of three 6’-10” sections and one 9‘-0“ section of X” IPS vertical pipe).

INSTRUCTION SHEET 761 -555 Page 1 of 12

Februarv 11. 1985

S&C Alduti-Rupter@ Switches

I

Three-Pole Side-Break Standard-Duty StyleOutdoor Distribution Reciprocating Operating Mechanism

14.4 kv and 25 kv

1 INSTALLATION

CUP-POINT(OR PIERCING) SET SCREWS

To assure the integrity of the operating mechanism,it is imperative that careful attention be given tothe correct installation of the cup-point set screwsprovided on all operating-pipe couplings. (Ifl%inch IPS vertical pipe is furnished-StandardMinor Modification Suffix “-S 15”-the associatedcouplings are provided with piercing set screws.)Before installing operating pipe in any coupling,make certain that the set screw does not protrudethrough the body of the coupling clamp. Tighteneach set screw as directed in the step-by-stepinstructions that follow, but in each case, only afterthe associated coupling clamp bolts have beentorqued to final tightness.

Operating Pipe PreparationIf desired, operating pipes can be cut to length (if notprecut at the factory) before proceeding to the job site.Cutting dimensions are shown on the erection drawing.One of the pipe sections furnished is threaded at oneend to accommodate the operating handle assembly.

Mounting to WoodWhen mounting the switch and its operating mechanismto a wood pole, it is recommended that suitably sizedsquare washers be placed under the nuts. The use ofspring-type washers between the square washers andnuts is also recommended to compensate for woodshrinkage and thus maintain fastener tightness.

Interphase, -Pipe Cl

Closed Stop

- Operating Lever

Figure 1. Switch-pole detail.

7611555 INSTRUCTION SHEETPage 2 of 12February 11, 1985

S&C ELECTRIC COMPANY * Chicago -S&C ELECTRIC CANAOA LTD. Rexdaleq

INSTALLATION 1

Mounting the Switch Poles and Bell-Crank Assembly

Important: To minimize time-consuming final adjustments, make sure that the switch poles are maintained in their fully closed positions during installation of the interphase and vertical operating- pipe sections. (As an expedient, the switch blades can be tied to their jaw-contact members.)

Step 1

Step 2 Assemble the bell crank and bell-crank bracket to the channel bracket as shown in Detail A on the erection drawing.

Attach an interphase-pipe clamp to each switch-pole operating lever.

Step 3 Important: Do not lift the switch poles by rigging on the

live parts, " nor subject these parts to undue stress from slings or fall lines. Misalignment of the contacts and the interrupters may result.

Hoist the individual switch poles and the bell-crank assembly and bolt them into position on the pole as

"

- shown on the erection drawing. Remove the switch poles from their crates. Use reason able care to protect the switch bearings from contam- The switch poles should be carefully aligned on the ination by dirt, mud, etc. If necessary, use blocks to keep supporting structure, taking care to see that the surface the bearings clear of the ground. on which the bases are mounted is flat and true;

Horizontal-Pipe

L Set Screw

Coupling 4 h 45' Position Mark

J lgure 2. Bell-crank detail.

INSTRUCTION SHEET 761 1555 S&C ELECTRIC COMPANY. Chicago Page 3 of 12 S&C ELECTRIC CANADA LTD . Rexdale February 11,1985

S&C Alduti-Rupter@ Switches

I

Three-Pole Side-Break Standard-Duty StyleOutdoor Distribution Reciprocating Operating Mechanism

14.4 kv and 25 kv

INSTALLATION

otherwise the bases may be twisted when they are boltedto the structure. Such twisting will throw the blades outof alignment, will place undue strain on the insulators,and will result in difficulties in operation. Use shimsas required.

Step 4Check each interphase-pipe clamp to make certain thatthe tip of the cup-point set screw does not protrudethrough the body of the clamp. Then, with all threeswitch poles fully closed, install the interphase pipe. Ateach switch-pole pipe clamp, securely tighten the clampbolts. Then securely tighten the set screw. Note: If theinterphase operating shaft consists of l-inch diameterfiberglass rod-furnished when the erection drawing(ED) includes Standard Minor Modification Suffix“-S13” or “-S14” -do not torque the set screw so tightlyas to fracture the rod.

Step 5With the switch poles in the fully closed position andwith the arms of the bell crank in a 45’ position as shown

in Figure 2, install the horizontal operating pipe betweenthe bell crank and the interphase pipe using the offsetpipe coupling provided. Make certain that the set screws(offset pipe coupling and bell-crank arm coupling) donot protrude through the bodies of their respectivecouplings. Securely tighten the clamp bolts. Thensecurely tighten the set screws.

Installing the Vertical Operating Pipe

Note: Step 6 is for a Standard Mounting Arrange-ment, for which 3/4” IPS vertical operating pipeis furnished. If, instead, the shipment includes 1%”IPS pipe, as signified by the addition of theStandard Minor Modification Suffix “-S15” to theerection drawing (ED) number, omit Step 6 andproceed to Step 7.

518” Threaded Rod,not furnished

Rigid C,oupling

/ Rod Guide

Figure 3. Rod guide and rigid coupling.

7611555 INSTRUCTION SHEETPage 4 of 12 S&C ELECTRIC COMPANY * ChicagoFebruary 11, 1985 S&C ELECTRIC CANADA LTO - Rexdale

INSTALLATION 1

Step 6 When installing the vertical operating pipe, it is advisable to start with the uppermost section and to completely make up each coupling as work progresses, except as noted below. Note that one of the pipe sections is threaded at one end for coupling to the operating handle; install this section of pipe last.

A rod guide is required for each vertical operating- pipe section, to be mounted on the pole in accordance with the locating dimensions shown on the erection drawing. Although the rod guides must not be mounted until after the operating handle is installed, they should be slipped on the operating pipe as each section is completed-prevented from dropping by the rigid couplings connecting the pipe sections.

Before installing a pipe section in any coupling, make certain that the cup-point set screw does not protrude through the body of the coupling. Securely tighten the clamp bolts. Then securely tighten the set screw. If a one-inch diameter fiberglass insulating section is

provided-furnished when the erection drawing (ED) includes Standard Minor Modification SuffE “ - S 10” or “-S14”-do not torque the set screw so tightly as to fracture the fiberglass. Note: Do not tighten the cup-point set screw at the top of the lowest section of vertical operating pipe until satisfactory operating-handle adjustment is attained.

Proceed as follows: (a) Attach a rigid coupling to one end of a 6‘-10” section

of vertical operating pipe. Next, slip a rod guide onto the pipe (the rigid coupling will serve to retain the rod guide). Clamp the other end of the pipe section in the bell-crank coupling. At both ends.of the pipe, securely tighten the clamp bolts. Then securely tighten the set screws.

Install additional, intermediate, operating-pipe sections in the same manner.

(b) Install the lowest operating-.pipe section by threading one end of the pipe into the coupling on the operating

L G r o u n d i n g Connector (for earth ground connection-see text)

bok projection and / %“ bolt travel

Without Key Interlock With Key Interlock

lgure 4. Operating handle assembly.

INSTRUCTION SHEET 761 -555 S&C ELECTRIC COMPANY. Chicago Page 5 of 12 S&C ELECTRIC CANADA LTO . Rexda le February 11, 1985

s&c Alduti-Rupter@ Switches Three-Pole Side-Break Standard-Duty Style Outdoor Distribution I Reciprocating Operating Mechanism

14.4 kv and 25 kv

I INSTALLATION

handle. Approximately Yi inch of thread should extend through the coupling. See Figure 4. Tighten the locknut. Slip a rod guide onto the pipe and attach the upper end of the pipe to the lowest rigid coupling. Tighten the coupling clamp bolts but do not tighten the associated set screw at this time.

(c) Make sure that the switch poles are fully closed and that the operating handle is held in its closed position by means of the locking bar.

Use the vertical operating pipe as a plumb line to locate the operating handle radially to the pole- see Section D-D on the erection drawing. Then drill 11/,6-inch diameter holes and mount the handle, using %-inch threaded rod or through-bolts (not furnished). At the same time, use one of the operating-handle mounting bolts to attach one end of the grounding strap (the end with the grounding connector attached) to the handle mounting plate. See Figure 4.t

(d) Drill an ll/lR-inch diameter hole in the Dole for each , ,- rod-guide mounting location, as indicated on the erection drawing. Angle the hole so that it is in line with the vertical operating pipe. Also, where appro- priate, position the hole to provide for a 10-inch minimum clearance between the rod guide and the rigid coupling immediately above. If applicable, remove the ties holding the switch poles closed. Move the operating handle to its mid- position and temporarily secure the handle in that position with the locking bar. Refer to the erection drawing.

Install the rod guides, using %”-1 1 threaded rods and nuts (not furnished) in the holes previously drilled. Each threaded rod must be of sufficient length to permit the vertical operating pipe to be centered, as near as practicable, in the rod-guide loop when the handle is in the mid-position. Remove the locking bar and move the handle to the closed position. Make sure that the switch poles are fully closed. Loosen the clamp bolts on the lower portion of the rigid coupling attached to the lowest operating-pipe section.

Then, while holding the handle approximately 20 degrees from the closed position, retighten the rigid- coupling clamp bolts. But do not tighten the asso-

ciated set screw. Finally, move the handle to the fully closed position. A definite resistance should be felt at the end of the stroke, indicating that all slack in the operating linkage has been taken up.

If this is not the case, the above procedure should be repeated except that the operating handle should be moved more than 20 degrees in the opening direction before tightening the coupling’s clamp bolts. Conversely, if it is necessary to use considerable force to move the handle to the fully closed position or if the operating handle does not swing 180 degrees to the fully open position, loosen the clamp bolts at the lowest coupling and then retighten them with the operating handle at less than the 20-degree position.

[g) With the operating handle adjusted for full 180-degree travel as described in (f) above, open and close the interrupter switch slowly to see that no operational difficulties are encountered due to undetected damage in shipping. (This applies only when checking for alignment and complete closure; when in service, the interrupter switch should be opened or closed vigorously through its full travel without hesitation at any point. Be prepared to apply additional force to maintain full speed when operating effort increases as the switch blades engage the interrupters.)

exist: When the operating handle is completely closed (and over center), all main contacts of the inter- rupter switch are in the fully closed position. When the operating handle is completely open, the switch blades are 90 degrees from the closed position.

(h) In the (unlikely) event that the conditions described in (g) above are not met, more switch-blade travel is required. Proceed as follows. Move the operating handle to its mid-position to take the strain off the operating-pipe linkage and loosen the two bolts that clamp the adjustable arm of the bell crank. Shorten the arm one “step” (ll/& inch) and retighten the bolts. (Shortening the arm increases the amount of switch travel.) Then readjust for full operating- handle and switch-blade travel as described in (f)

Check to be sure that the following conditions

The grounding recommendations herein may differ from the standard operating and safety procedures of certain electric utility companies. Where a discrepancy exlsts, the operating procedures of the electric utihty apply. switch-blade travel is attained.

and (g) above. Repeat this procedure, shortening the bell-crank arm in one-step increments, until full

761 1555 INSTRUCTION SHEET Page 6 of 12 S&C ELECTRIC COMPANY. Chicago February 11, 1985 S&C ELECTRIC CANADA LTD + Rexdale

INSTALLATION 1 ~~ ~

(i) When satisfactory travel adjustment of handle and switch is attained, make sure that the clamp bolts at the coupling immediately above the handle are securely tightened. Then securely tighten the set screw.

(j) Fasten the free end of the grounding strap to the lowest vertical operating-pipe section a few inches above the operating handle assembly with the U-bolt connector provided for this purpose. Then connect the lower end of the strap to a suitable earth ground, using the grounding connector provided at that end of the strap.?

(k) Proceed with Step 8.

Step 7 If l%-inch vertical operating pipe is furnished, install it as follows. (a) Mount the operating handle as shown on the erection

drawing. At the same time, use one of the operating- handle mounting bolts to attach one end of the grounding strap (the end with the grounding con-

nector attached) to the handle mounting plate. See Figure 4.7

(b) Drill 11116-inch diameter holes and install spring- loaded rod guide(s) using %-inch bolts (not fur- nished), with the arm pointing upward, as shown in Figure 5. The adjustable rod guide should be mounted nearest the switch.

(c) When installing the vertical operating-pipe sections, it is advisable to start with the uppermost section and to completely make up each coupling as work progresses, except as noted below. Note that one of the vertical pipe sections is threaded at one end for coupling to the operating handle. Install this section of pipe last. Before installing a pipe section in any coupling, make certain that the piercing set screw does not protrude through the body of the coupling. Securely tighten the clamp bolt. Then tighten the

t The grounding recommendations hereln may dlffer from the standard operating and safety procedures of certaln electrlc utllity companies. Where a discrepancy exists, the operating procedures of the electrlc utllity apply.

Adjustable rod guide Nonadjustable rod gulde (install in uppermost (install in intermedlate position) and lowest positions)

Figure 5. Rod-guide assemblies for use with 1%-inch IPS vertical operating pipe, furnished when the erection drawing (ED includes the Standard Minor Modification Suffix “-S15.”

INSTRUCTION SHEET 761 -555 S&C ELECTRIC COMPANY Chicago Page 7 of 12 S & C ELECTRIC CANAOA LTO Rexdale February 11, 1985

S&C Alduti-Rupter@ Switches Three-Pole Side-Break Standard-Duty Style Outdoor Distribution I Reciprocating Operating Mechanism

14.4 kv and 25 kv

1 INSTALLATION ~ ____ ~~~

piercing set screw, piercing the pipe, and continue turning until a firm resistance is felt. Note: Do not tighten the piercing set screw at the top of the lowest section of vertical operating pipe until satisfactory operating-handle adjustment is attained.

Install the upper section of operating pipe between the bell crank and the adjustable rod guide, with the rod-guide arm pointing upward at a 45-degree angle. A positioning bolt holds the rod-guide arm at 45 degrees. See Figure 5.

If more than one rod guide is used, install vertical operating pipes between rod guides in the same manner.

(d) Install the lowest operating-pipe section by threading one end of the pipe into the coupling on the operating handle. Approximately ‘/4 inch of thread should extend through the coupling. See Figure 4. Tighten the locknut. Next, make sure that the switch poles are fully closed. Then insert the upper end of this vertical pipe section in the lowest rod-guide coupling and, while holding the operating handle approxi- mately 20 degrees from the closed position, tighten the rod-guide clamp bolt. Do not tighten the associated piercing set screw at this time.

Now remove the temporary 45-degree positioning bolt from each rod guide. Also, if applicable, remove the ties holding the switch poles closed. Then move the handle to the fully closed position. A definite resistance should be felt at the end of the stroke, indicating that all slack in the operating linkage has been taken up.

If this is not the case, the above procedure should be repeated except that the operating handle should be moved more than 20 degrees in the opening direction before tightening the clamp bolt on the lowest rod-guide coupling. Conversely, if it is necessary to use considerable force to move the handle to the fully closed position or if the operating handle does not swing 180 degrees to the fully open position, loosen the clamp bolt on the lowest rod- guide coupling and then retighten it with the operating handle at less than the 20-degree position. With the operating handle adjusted for full 180-degree travel as described in (d) above, open and close the interrupter switch sZowZy to see that no operational difficulties are encountered due to undetected damage in shipping. (This applies only when checking for alignment and complete closure; when in service, the interrupter switch should be opened or closed vigorously through its full travel

without hesitation at any point. Be prepared to apply additional force to maintain full speed when operating effort increases as the switch blades engage the interrupters.)

Check to be sure that the following conditions exist:

When the operating handle is completely closed (and over center), all main contacts of the inter- rupter switch are in the fully closed position. When the operating handle is completely open, the switch blades are 90 degrees from the closed position.

(0 In the (unlikely) event that the conditions described in (e) above are not met, more switch-blade travel is required. Proceed as follows. Move the operating handle to its mid-position to take the strain off the operating-pipe linkage and loosen the two bolts that clamp the driven arm of the adjustable rod guide. Lengthen the driven arm one “step” (11/32 inch) and retighten the bolts. (Lengthening the arm increases the amount of switch travel.) Then readjust for full operating-handle and switch-blade travel as described in (d) and (e) above. Repeat this procedure, length- ening the driven arm in one-step increments, until full switch-blade travel is attained.

(g) When satisfactory travel adjustment of handle and switch is attained, make sure that the clamp bolt on the pipe coupling at the rod guide (or bell-crank arm) immediately above the handle has been securely tightened. Then tighten the associated piercing set screw, piercing the pipe, and continue turning until a firm resistance is felt.

(h) Fasten the free end of the grounding strap to the lowest vertical operating-pipe section a few inches above the operating handle assembly with the U-bolt connector provided for this purpose. Then connect the lower end of the strap to a suitable earth ground, using the grounding connector provided at that end of the strap.?

Locking the Operating Handle

Step 8 With padlock: The operating handle assembly includes provisions for padlocking the interrupter switch in either the open or closed position.

t The groundmg recommendations herein may differ from the standard operating and safety procedures of certain electrlc utillty companies. Where a dlscrepancy exists, the operating procedures of the electric utility apply.

761 455 INSTRUCTION SHEET Page 8 of 12 S&C ELECTRIC COMPANY. Chicago February 11, 1985 S&G ELECTRIC CANAOA LTO - Raxdale

INSTALLATION I With key interlock: A Superior Key Interlock (or equivalent), if supplied with the interrupter switch, will be mounted on the operating handle (see Figure 4). One of the two slots in the operating handle will be blocked

8 to provide either a locked-open or locked-closed arrangement.

If the interrupter switch is supplied with provision for the addition of a key interlock, the operating handle will have an interlock-mounting plate attached to the base. Install interlock as follows. (a) Attach interlock to mounting plate so that interlock

bolt, when extended, will engage a slot in the operating handle. A Superior (Type B4003-1) Key Interlock with zero bolt projection and %-inch bolt travel is required.

(b) Block one of the two slots in the operating handle with the blocking screw provided. The slot to be

Note: Key interlocks are intended for proper sequencing of switching operations; they are not intended to provide security. The operating handle assembly includes provisions for padlocking the interrupter switch in either the open or closed position.

Checking Operation

Step 9 Open and close the switch slowly several times and check the operation of each pole. The following conditions must be met: 0 The interrupter must lie in a plane parallel to the

sweep of the blades, and the blades must pass over the interrupter with approximately equal clearance on both sides as shown in Figure 6 .

blocked will be determinedby whether a locked-open As the blade moves in the closing direction, clearance or locked-closed arrangement is required. between the blade opening cam and the interrupter

n ,-Mounting Bracket Shunt Contact

Interrupter Housing

Blade Assembly

I

Opening Lever

Figure 6. Operating checkpoints.

INSTRUCTION SHEET 761.555 S&C ELECTRIC COMPANY. Chicago Page 9 of 12 S&C ELECTRIC CANADA LTD Rexdale February 11, 1985

S8C AIduti-Rupter@ Switches Three-Pole Side-Break Standard-Duty Style Outdoor Distribution I Reciprocating Operating Mechanism

14.4 kv and 25 kv

I INSTALLATION I

opening lever must be within the limit shown in Figure 6, View A-A. In the fully closed position, clearance between the blade closing cam and the interrupter closing lever must be within the limit shown in Figure 6. Also, the clearance between the blade shunt contact and the interrupter housing must be as shown in Figure 6. As the blade moves in the opening direction, the shunt contact must firmly engage the interrupter housing before the blade disengages from the jaw contact. (The shunt contact may be bent as required to conform to these conditions.) If adjustment is required, loosen the bolts that fasten

the interrupter to the jaw-contact casting and reposition the interrupter. I t may be necessary, as well, to loosen the bolts that fasten the jaw-contact casting to its mounting bracket and slightly rotate the casting in order to achieve the necessary clearances. Retighten the bolts, making sure that the blade engages the stationary contact on-center.

If any of the conditions described in this step cannot be achieved, contact the nearest S&C Sales Office since it is likely that damage was sustained during shipping.

Connecting High-Voltage Conductors When high-voltage conductors are to be connected using aluminum-alloy body connectors? the fol- lowing procedures should be employed: A. Thoroughly wire-brush the current-transfer

surfaces of each connector and immediately apply a liberal coating of Penetrox A (available from Burndy Corporation) to the brushed surfaces.

B. Wire-brush each terminal pad of the interrupter switch and apply a coating of Penetrox A. Then bolt the connectors to the terminal pads.

C. Prepare the conductors using established procedures and clamp them in their respective connectors.

t “Mass anode” type connectors, such as the Catalog Number

connector manufacturer as being suitable for direct attachment to 5300 series offered by S&C, which have been designated by the

copper-bearing alloy terminal pads.

761 1555 INSTRUCTION SHEET Page 10 of 12 S&C ELECTRIC COMPANY - Chicago February 11, 1985 S&C ELECTRIC CANADA LTD Rexdale

I IDENTIFICATION CHART - OPERATING-MECHANISM COMPONENTS I

Operating Handle Assembly Catalog No. 5252 for W' IPS pipe Catalog No. 5253 for %" IPS pipe

(with key interlock provision) Catalog No. 5254 for 1%" IPS pipe Catalog No. 5255 for 1%" IPS pipe

(with key interlock provision)

Rod Guide Catalog No. SA-41729 for 3/4" IPS pipe

and 1" die. fiberglass rod

Adjustable Beii-Crank Assembly Catalog No. 5226R1 (55/,6"-61/4") X 8W'* for 2'' IPS pipe and 1" dia. fiberglass rod Catalog No. 5229R1 8%" X (55/161)-61/4")* for %" IPS pipe and 1" die. fiberglass rod

Catalog No. 5289 (55/16"-61/4") X 8%"* for 1%'' IPS vertical pipe

for 1%" IPS vertical pipe Catalog NO. 5290 8%'' x (55/,6"-6'/4")*

!26R1 illustrated. First dimension ! ;hown is left-side arm leng lber th-Catalog Nun

Rod Guides Catalog No. VU-1001

for 1%" IPS pipe (adjustable) Catalog No. VU-998

for 1%" IPS pipe (nonadjustable)

Adjustable rod guide (install in uppermost position)

Nonadjustable rod guidr (install in intermediate and lowest positions)

?

INSTRUCTION SHEET 761 455 S&C ELECTRIC COMPANY Chicago Page 11 of 12 S&C ELECTRIC CANAOA LTD . Rexdale February 11, 1985

S&C Alduti-Rupters Switches Three-Pole Side-Break Standard-Duty Style Outdoor Distribution Reciprocating Operating Mechanism

14.4 kv and 25 kv I 1 IDENTIFICATION CHART - OPERATING-MECHANISM COMPONENTS I

Offset Coupling Assembly Catalog No. 5227

for 3 / i f IPS pipe and 1" dia. fiberglass rod

Interphase Coupling Assembly (lever to pipe) Catalog No. SA-38831

for W' IPS pipe and 1" dia. fiberglass rod

Rigid Coupling Assembly Catalog No. 5228

for %" IPS pipe and 1" dia. fiberglass rod

761 -555 INSTRUCTION SHEET Page 120f 12 S&C ELECTRIC COMPANY - Chicago February 11,1985 S&C ELECTRIC CANADA LTD - Rexdale