SECTION 01572 CONSTRUCTION AND DEMOLITION WASTE …downloads.planetbids.com/NETConnect/Downloads/02...Construction and Demolition Waste Management 1628 01572-2 September 2, 2009 Addendum

September 2, 2009 01572-1 1628 (construction contract) Addendum 3

SECTION 01572

CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT

PART 1 GENERAL

1.01 REQUIREMENTS

A. Metropolitan has established a goal for the Contractor to reuse or recycle a minimum of 50 percent of the construction and demolition debris generated by the project. At a minimum, the Contractor shall meet local waste management regulations specifying minimum percentages of reuse or recycling of construction and demolition waste and debris.

B. The Contractor shall comply with the requirements of local waste management authorities to promote sustainable building efforts by creating a resource-efficient and environmentally sensitive project and maintaining optimum control of the construction and demolition waste generated during the project.

1.02 DEFINITIONS

A. Class III Landfill: A landfill that accepts non-hazardous solid waste such as household, commercial, and industrial solid waste. A Class III landfill must have a California Integrated Waste Management Board (CIWMB) solid waste facilities permit and is regulated by the local enforcement agency (LEA).

B. Construction and Demolition Recycling Guide (CDRG): A publication by the City of Los Angeles Bureau of Sanitation, Solid Resources Citywide Recycling Division (available at www.lacity.org/san/solid_resources).

C. Construction and Demolition (C&D) Debris: Solid waste and recyclable materials that result directly from construction, remodeling, repair, or demolition of buildings and other structures, do not contain hazardous waste (as defined in CCR Title 22, Section 66621.3, et seq.), and contain no more than one percent putrescible wastes by volume, calculated on a monthly basis. C&D debris may include, but is not necessary limited to asphalt, concrete, Portland cement, brick, lumber, wallboard, roofing material, ceramic tile, pipe, glass, carpet and associated packaging.

D. Disposal: Acceptance of solid waste at a legally operating facility for the purpose of land filling.

E. Diversion: Activities that result in reducing the amount of waste disposed at a landfill. This can include source reduction activities, composting, recycling, and reuse.

F. Local Enforcement Agency (LEA): The local waste management authority responsible for C&D debris recycling enforcement. The LEA may not exist in all projects. In such cases, the Contractor shall comply with Metropolitan’s requirements.

G. Mixed Debris: Material that includes commingled recyclable and non-recyclable construction and demolition debris.

H. Mixed Debris Processing Facility: A solid waste processing facility that accepts loads of mixed debris for the purpose of recovering re-usable and recyclable materials and disposing of the non-recyclable residual materials. See also Certified Mixed Debris Processing Facility.

I. Permitted Waste Hauler: A company that possesses a valid and current permit from the local authority to collect and transport solid waste from individuals or businesses.

J. Putrescible Waste: Solid waste that contains organic matter capable of being decomposed by microorganisms and causing odors.

K. Recycling: The process of sorting, cleaning, treating and reconstituting materials for the purpose of using the altered form in the manufacture of a new product. Recycling does not include burning, incinerating, or thermally destroying solid waste.

1. On-site Recycling: Materials that are sorted and processed for use in an altered form in the project, (e.g. concrete is crushed for use as base for a parking lot on the site)

2. Off-site Recycling: Source-separated materials hauled to another location and used in an altered form in the manufacture of a new product.

L. Recycling Facility: An operation that can legally accept materials for the purpose of processing the materials into an altered form for the manufacture of a new product. Depending on the types of materials accepted and operating procedures, a recycling facility may or may not be required to have a Solid Waste Facilities permit from the CIWMB or be regulated by the LEA.

Construction and Demolition Waste Management

1628 01572-2 September 2, 2009 Addendum 3 (construction contract)

M. Source Reduction: Any action causing a net reduction in the generation of solid waste. Source reduction includes, but is not limited to, reducing the use of non-recyclable materials, replacing disposable materials and products with reusable materials and products, reducing packaging, and reducing the amount of yard waste generated.

N. Source-Separated Materials: Material that is sorted at the site of generation by individual material type for the purpose of reuse or recycling, i.e., loads of concrete that are source-separated for delivery to a base course recycling facility to be crushed into road base material.

O. Solid Waste: Waste that the CIWMB has deemed acceptable for disposal at a Class III Landfill and shall not include source-separated material.

P. Transfer Station: A facility that can legally accept solid waste for the purpose of temporarily storing the materials for re-loading onto other trucks and transporting them to a landfill for disposal, or recovering some materials for reuse or recycling. Transfer stations must be permitted by the CIWMB and regulated by the LEA.

1.03 SUBMITTALS

A. Construction and Demolition Waste Management Plan (C&D WMP)

1. The Contractor shall conduct a site assessment and estimate the types and quantities of materials, under the project, that are anticipated for on-site or off-site processing, recycling, reuse, or disposal, whether the work is performed by the Contractor or a subcontractor, and discuss the C&D WMP with the Engineer at the pre-construction meeting to allow the Engineer and the Contractor an opportunity to develop a mutual understanding regarding the recycling and reuse requirements and programs.

2. Not more than 20 working days after receipt of the Notice to Proceed, the Contractor shall prepare and submit to the Engineer a written C&D WMP. The plan shall show the required recycling for inert debris and the remaining C&D debris expected from the project, whether the work is performed by the Contractor or a subcontractor, as set forth in this section. The Contractor shall submit the plan in the format provided herein as Attachment A. Instructions for filling out the form are in Attachment A, Instruction Sheet. In the event the LEA also requires the C&D WMP to be submitted for its approval, the Contractor may use LEA-required forms in lieu of Metropolitan-furnished forms in its submittal to Metropolitan. Submittals and/or approvals from the LEA shall be included in the submittal to Metropolitan, or shall be copied to Metropolitan separately.

3. If the Contractor seeks an exemption that is approved by the LEA, the Contractor may revise and resubmit the C&D WMP.

4. If the Contractor fails to meet the LEA minimum requirements, the Contractor will be subject to the stipulated penalties assessed by the LEA.

5. The Engineer’s approval of the Contractor’s C&D WMP will not relieve the Contractor of responsibility for adequate and continuing control of pollutants and other environmental protection measures and meeting state and local diversion requirements.

B. Solid Waste Diversion and Disposal Report (SWDD Report):

1. With each submittal of the Contractor’s application for progress payment, the Contractor shall prepare and submit to the Engineer a written SWDD Report quantifying all materials generated in the project which was either disposed, or diverted from disposal through reuse or recycling during the time period covered by the SWDD Report and progress payment.

2. The SWDD Report shall include a cumulative summary of the diversion and disposal for the project. The Contractor shall submit the report in the format provided herein as shown in Attachment B.

3. The SWDD Report shall include appurtenant supporting documentation such as manifests, weight tickets, receipts, reports, invoices, and other supporting documents specifically identifying the project, the recyclables and solid waste generated by the project, and where the material was sent. Instructions for filling out the forms are in Attachment B, Instruction Sheet.

4. A final SWDD Report shall be submitted and cover the complete time period of the project including a cumulative summary, listing the total waste disposed and/or diverted for the entire duration of construction and demolition activities. The final SWDD and supporting documentation must be submitted 20 working days prior to application for final payment.



1.04 PENALTY

A. If the diversion requirement is not met during the course of the project, the Contractor shall report their failure to the LEA as applicable. The Contractor shall be responsible for all penalties that are assessed by the LEA for not meeting the diversion requirement.

B. In the event a penalty is assessed, the Contractor shall submit copies of all correspondence and any penalty assessment imposed by the LEA within 3 working days of such transactions to Metropolitan. Assessed penalties shall be the sole responsibility of the Contractor.

1.05 REUSE, SALVAGE, AND RECYCLING OPTIONS

A. Options for reuse and recycling include the California Materials Exchange (CalMAX), a free program sponsored by the CIWMB. The most recent issues of the CDRG, contains contact information for non-profit organizations, salvage facilities and other reuse organizations.

B. Recycling may include both on-site and off-site recycling of source-separated materials, as well as mixed debris recycling efforts, provided the on-site recycling is submitted and approved by the Engineer, and the processing or use of such materials does not violate any local, State or Federal regulations, or any portion of these specifications.

C. At a minimum, the Contractor shall develop and implement a program to source separate and recycle solid waste of the following types:

1. Asphalt

2. Concrete, concrete block, slump stone (decorative concrete block)

3. Rock

4. Metal

5. Wood (lumber)

6. Green material (i.e. tree trimmings)

7. Other materials, as appropriate, such as electrical items, building fixtures, architectural details, dry wall, carpet, carpet padding, and corrugated cardboard.

8. NOTE: Recycled products SHALL NOT be incorporated into the construction of hydraulic structures.

D. Mixed Debris Recycling: The Contractor shall develop and implement a program to transport loads of commingled construction and demolition materials that cannot be feasibly source separated to a mixed debris recycling facility. A list of these facilities can be obtained from the LEA.

E. Certified Processors: These facilities have facility recycling rates, established by the State and/or LEA for each mixed debris waste stream. Mixed C&D debris taken to these facilities will be considered to have been recycled at the rate of the certified processing facility. For example, 100 tons of material taken to a facility with a recycling rate of 60% gives the project credit for 60 tons of recycling. A list of these facilities and their recycling rates is in the most recent issue of the CDRG.

F. Fees:All fees assessed by the LEA shall be paid by the Contractors.

G. Revenues: All revenues, rebates or savings obtained from recycled, reused, or salvaged materials, except those items designated by the contract documents to be salvaged for Metropolitan’s use, shall be retained by the Contractor.

1.06 HAULING AND DISPOSAL OPERATIONS

A. Hauling: The Contractor is responsible for arranging the collection and hauling of C&D debris by a waste hauler that is permitted by the local waste management authority.

B. Recycling and Processing Facilities: The Contractor shall be responsible for transporting C&D debris to recycling or processing facilities. The Contractor shall be familiar with the requirements for acceptance of C&D materials at the recycling and processing facilities before the material is delivered.

C. Disposal Facilities: The Contractor shall be responsible for transporting C&D debris that cannot be delivered to a recycling or processing facility, to a transfer station or disposal facility that can legally accept the materials for the purpose of disposal.

D. Site Disposal: The Contractor shall not burn, bury, or otherwise dispose of solid waste on the jobsite.



PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION (NOT USED)

END OF SECTION


Month XX, 2009 01572-5 {spec. no.} (construction contract)

ATTACHMENT A

CONSTRUCTION & DEMOLITION WASTE MANAGEMENT PLAN

Project Title:

Contract No.:

Spec No.: Date Submitted:

Contractor:

Phone No.:

Address:

Fax No.:

Name / Title of Responsible Person:

Signature:

Diversion Methods: 1) Hand‐Wrecking to recover salvageable materials to be used on‐site. 2) Hand‐Wrecking to recover salvageable materials to be taken off‐site. 3) Hauling debris to an engineered fill. 4) On‐site concrete and asphalt crushing for use on‐site. 5) On‐site concrete and asphalt crushing for use off‐site. 6) Source separating materials and hauling to recyclers. 7) Other, please describe: _____________________________________________________________

Material Diversion Facility & Location Diversion Method(s)

Tons Diverted

Tons Disposed

Asphalt

Concrete

Glass

Wood/Green Waste

Metal Describe:__________

Metal Describe:__________

Cardboard

Mixed Debris

Other: ___________

Other: ___________

Other: ___________

DIVERSION AND DISPOSAL TOTALS =

ESTIMATED RECYCLING PERCENTAGE = ( Total Diverted ) ( ) X 100 = X 100 = % ( Total Diverted + Total Disposed ) ( + )



Attachment A Instruction Sheet

1. All information required in the attachment shall be provided. Please print clearly or type. 2. Indicate the facilities and locations to which materials will be delivered for reuse, recycling, or

disposal. These facilities can include: a. Source Separated Recycling Facilities b. Mixed Debris Recycling Facilities c. Class III Landfills d. Salvage yards e. Transfer Stations

3. Diversion methods to be used for recycling, reusing, salvaging and disposing of materials shall be chosen from the list or specified by the Contractor if the method is not listed.

4. Estimate quantities of all materials shall be listed by weight. Report disposal, reuse, or recycling in tons. Indicate zero (0) if there is no quantity to report for a type of material.

5. Calculate the recycling and disposal amounts for mixed debris taken to a certified processor as follows:

a. Tons to be diverted (recycled amounts) = Total tons to be taken to certified processor times the certified recycling rate.

b. Tons to be disposed (disposal amounts) = Total tons to be taken to facility minus the recycled amounts.

c. For example, 100 tons taken to a certified processor with a recycling rate of 63% yields 63 tons of diversion and 37 tons of disposal.

6. Calculate the recycling percentage by dividing the total diverted amounts by the sum of the total diverted and disposed amounts, and multiplying the outcome by 100 in order to obtain the percentage (see formula in Attachment A).


Month XX, 2009 01572-7 {spec. no.} (construction contract)

ATTACHMENT B

SOLID WASTE DIVERSION AND DISPOSAL REPORT FOR THE PERIOD FROM: __________ TO: ___________

Project Title:

Contract No.:

Spec No.: Date Submitted:

Contractor:

Phone No.:

Address:

Fax No.:

Name / Title of Responsible Person:

Signature:

Material Diversion Facility & Location Tons

Diverted (This Period)

Tons Diverted (To Date)

Tons Disposed (This Period)

Tons Disposed (To Date)

Asphalt

Concrete

Glass

Wood/Green Waste

Metal Describe:_________

Metal Describe:_________

Cardboard

Mixed Debris

Other: __________

Other: __________

Other: __________

DIVERSION AND DISPOSAL TOTALS =

RECYCLING PERCENTAGE TO DATE (Cumulative) = ( Total Diverted To Date ) X 100 = ( Total Diverted To Date + Total Disposed To Date ) ( ) X 100 = % ( + )



Attachment B

Instruction Sheet

1. With each submittal of Contractor's application for progress payment, the Contractor shall prepare and submit to the inspector a written Solid Waste Diversion and Disposal Report quantifying all materials generated in the project that were either disposed in landfills or diverted from disposal through recycling or reuse. Submit the report in the format provided as Attachment B.

2. All information required in the attachment shall be provided. Please print clearly or type. 3. Report disposal, reuse, or recycling quantities in tons. Indicate zero (0) if there is no quantity to

report for a type of material. Report the quantities for the reporting period and also the cumulative to date quantities for the project since start of construction.

4. Indicate the facilities and locations to which materials are delivered for reuse, recycling, or disposal. These facilities can include:

i. Source Separated Recycling Facilities ii. Mixed Debris Recycling Facilities

iii. Class III Landfills iv. Salvage yards v. Transfer Stations

5. The Solid Waste Diversion and Disposal Report must be accompanied by legible copies of weigh tickets, receipts, or invoices that specifically identify the project generating the material. Said documents must be from recyclers and/or disposal site operators that can legally accept the materials.

6. If materials are taken to a facility for which weigh tickets, receipts, or invoices are not available, Contractor shall provide certified documentation on company letterhead identifying the address to which materials were taken, name of owner/operator, type of materials, tons disposed, and the specific project generating the materials.

7. If materials are used on site, Contractor shall provide documentation on company letterhead identifying the type and tons of materials being reused or recycled on site and the specific project generating the materials

8. Calculate the recycling and disposal amounts for mixed debris taken to a certified processor as follows:

a. Tons to be diverted (recycled amounts) = Total tons to be taken to certified processor times the certified recycling rate.

b. Tons to be disposed (disposal amounts) = Total tons to be taken to facility minus to the recycled amounts.

c. For example, 100 tons taken to a certified processor with a recycling rate of 63% yields 63 tons of diversion and 37 tons of disposal.

9. Calculate the cumulative recycling percentage to date by dividing the total diverted amounts to date by the sum of the total diverted and disposed amounts to date, and multiplying the outcome by 100 in order to obtain the percentage (see formula in Attachment B).

POWER TRANSFORMER DEMOLITION LISTWEYMOUTH POWER SYSTEM UPGRADE PROJECT # 103487

September 11, 2009 02114A‐1 1628Addendum 3

September 11, 2009 02114A‐1 1628Addendum 3

Not Tested Not Tested

Equipment Equipment Equipment Material PCB Analysis

Number Description Location Results Date

Main Transformer 3750 kVA 2.4k‐480V 2.4 /12kV Switchgear Bldg. Oil< 20 ppm 6/16/2009

2R 1000 kVA 2.4k‐480V Headhouse ‐ Basement Oil < 20 ppm 6/16/20092R‐1 150 kVA 2.4 kV ‐120/240 volt

transformer for lightingHeadhouse ‐ Basement Oil

< 20 ppm 6/16/20093R‐1 50 kVA 2.4 kV ‐120/240 volt

transformer for lightingHeadhouse ‐ Electrical Room #1 Oil

Not Tested Not Tested3R‐2 50 kVA 2.4 kV ‐120/240 volt

transformer for lightingSoftener Bldg. #1 Oil

Not Tested Not Tested3R‐3 50 kVA 2.4 kV ‐120/240 volt

transformer for lightingSoftener Bldg. #2 Oil

Not Tested Not Tested41 R‐1 50 kVA 2.4 kV ‐120/240 volt

transformer for lightingFilter Bldg. #2 Oil


transformer for lightingFilter Bldg. #2 Oil


transformer for lightingBasin Control House (Davy's

Shack)Oil

Not Tested Not Tested 5R 750 kVA 2.4k‐480V Bldg. #4 Dry N/A N/A6R 1000 kVA 2.4k‐480V Filter #2 Oil < 20 ppm 6/16/20098R‐1 150 kVA 2.4k‐480V Junction Structure Oil < 20 ppm 6/16/20098R‐2 300 kVA 2.4k‐480V South of the Finished Water

ReserviorOil

< 20 ppm 6/16/20098R‐3 300 kVA 2.4k‐480V Bldg. #40 Oil < 20 ppm 6/16/20099R 1000 kVA 2.4k‐480V Water Quality Lab (South) Oil < 20 ppm 6/16/200910R 1000 kVA 2.4k‐480V Filter Building #1 Oil < 20 ppm 6/16/200911R 1000 kVA 2.4k‐480V Water Quality Lab (North) Dry N/A N/A12R 750 kVA 2.4k‐480V Emerg. Gen. Bldg. Oil < 20 ppm 6/16/2009


SECTION 16347 PAD-MOUNTED SWITCHGEAR

PART 1 GENERAL

1.01 REFERENCES

A. General

1. The publications listed below form a part of this Specification to the extent referenced.

2. Where a date is given for reference standards, that edition shall be used. Where no date is given for reference standards, the latest edition in effect at the time of bid opening shall apply.

B. American National Standards Institute (ANSI)

C. National Electrical Manufacturers Association (NEMA)

D. National Fire Protection Agency (NFPA)

1. NFPA 70, National Electrical Code

2. NFPA 70E, Standard for Electrical Safety in the Workplace

E. State of California Codes

1. California Code of Regulations (CCR), Title 8, Electrical Safety Orders

1.02 SUBMITTALS

A. Submit in accordance with the requirements of Section 01300, Submittals and Section 16050, Basic Electrical Materials and Methods. In addition, the following specific information shall be provided:

1. Voltage and continuous current rating

2. Short circuit withstand rating

3. Complete specifications, dimensional drawings and descriptive literature, including overall weights of switchgear, typical shipping package, anchoring details, plan and elevation views.

4. One-line diagram showing all ratings of switches and fuses

5. Location and dimensions for conduit entrances

6. Bill-of-materials with catalog or part numbers

7. Certified copies of factory test reports

8. List of recommended spare parts

B. Anchorage design calculations in accordance with Section 01640, Seismic Design of Equipment and Equipment Anchorage.

1.03 TEST REPORTS AND CERTIFICATION

A. The manufacturer shall certify that the following switchgear design tests, in accordance with ANSI standards, have been performed on essentially duplicate switchgear. Test reports and certification shall be provided to Metropolitan for each of the following:

1. Rated continuous current-carrying tests.

2. Rated dry low-frequency withstand test.

3. Rated full wave impulse withstand test.

4. Short-circuit rating tests.

5. Mechanical life test.

Pad-Mounted Switchgear


1.04 SHIPMENT

A. All shipments shall be properly crated, boxed, packed, or otherwise protected to prevent damage in transit and storage. Spare parts shall not be packaged with other material. Shipments involving sea transportation shall be crated with dry materials, shall be packed with a desiccant, shall be sprayed or treated with a fungicide or given equivalent treatment, and shall be otherwise protected to insure delivery with no fungus growth, rust, or other damage due to such transportation. Each package shall be plainly marked with the following:

1. An identifying number which also shall appear on the bill of lading and other documents relating to shipment.

2. Contract number and Item number.

3. Consignee’s name and address.

4. Shipping weight.

B. All equipment delivered by truck shall be capable of being unloaded from 3 sides of the truck bed with a forklift loader or from above with an overhead crane. All equipment delivered by rail shall be on flat cars. Immediately, upon delivery of a shipment, the switchgear and spare parts shall be completely covered by plastic (minimum thickness of 4 mils) to protect the equipment from moisture, unless the shipment is unloaded to an indoor location. Provide temporary circuits and/or space heaters in each section to prevent condensation for any equipment stored in unconditioned spaces.

1.05 OPERATIONS AND MAINTENANCE MANUALS

A. Submit instruction (operation and maintenance) manuals in conformance with Section 01730, Operations and Maintenance Data. The manual shall describe the equipment in full and shall include the following major items:

1. Operating instructions and start-up procedures including receiving and installation requirements.

2. Maintenance instructions listing preventative and corrective maintenance procedures. Corrective maintenance procedures shall identify the most probable failures and the appropriate repairs. Test measurement levels shall be referenced to specific test points on the installed equipment.

3. Spare parts shall be furnished for each item of material and equipment specified. The data shall include a complete list of parts and supplies, with current unit prices and source of supply. A list and itemized price breakdown of spare parts recommended for stocking shall be furnished. The parts selected shall be those which, in the manufacturer’s judgment, will be involved in the majority of maintenance problems.

4. Catalog cuts and technical manuals for all components of the system.

5. Copies of all test results.

6. Final copies of all shop drawings, incorporating manufacturing and field changes.

1.06 QUALITY ASSURANCE

A. All equipment furnished under this Section shall be the product of a manufacturer who has produced this same type of equipment for a period of at least 10 consecutive years.

B. The pad-mounted switchgear shall be an integrated assembly of coordinated design; constructed, tested and warranted by a single manufacturer, assembled at a single location and witness tested and factory inspected prior to shipment to the job site.

C. All components of the pad-mounted switchgear shall be standard catalogued and manufactured units complying with the requirements of this specification.

D. Equipment components and devices shall be UL listed and labeled where UL standards exist for such equipment.

PART 2 PRODUCTS

2.01 GENERAL REQUIREMENTS

A. The pad-mounted gear shall be in accordance with the single-line diagram, and shall conform to the following specification.



Insulation Class:

Nominal 3-Phase MVA Class:

Voltage (nominal system):

Maximum Voltage:

Frequency:

Continuous Current Carrying Capaci

Main Bus:

Interrupter Switches

Fuses:

B. The pad-mounted gear shall consist of a single self-supporting enclosure, containing interrupter switches and power fuses with the necessary accessory components, all completely factory-assembled and operationally checked. The interrupter switches and fuses shall be enclosed within an inner grounded steel compartment for electrical isolation and for protection from contamination. Switch terminals shall be equipped with bushings rated 600 amperes continuous, and fuse terminals and bus terminals shall be equipped with bushing wells rated 200 amperes continuous to provide for elbow connection. Bushings and bushing wells shall be mounted on the walls of the inner compartment and shall extend into termination compartments. A termination compartment shall be provided for each three-phase switch, each three-phase set of fuses, and each three-phase set of bus terminals.

C. Acceptable Manufacturers: S& C Electric Company Type PMH; or equal.

2.02 SWITCHGEAR RATING

A. The minimum rating of the pad-mounted switchgear assembly shall be as follows:

1. 5 kV

2. 350 MVA

3. 4.16 kV

4. 4.76 kV

5. 60 Hz

6. ty:

a. 600 A

b. 600 A

c. As shown on the Drawings

2.03 CONSTRUCTION

A. Insulators

1. The interrupter-switch and fuse-mounting insulators shall be of a cycloaliphatic epoxy resin system with characteristics and restrictions as follows:

a. Operating experience of at least 25 years under similar conditions.

b. Adequate leakage distance established by test per IEC Publication 507, “Artificial Pollution Test on High Voltage Insulators to be Used on AC Systems.”

c. Adequate strength for short-circuit stress established by test.

d. Conformance with applicable ANSI standards.

e. Homogeneity of the cycloaliphatic epoxy resin throughout each insulator to provide maximum resistance to power arcs. Ablation due to high temperatures from power arcs shall continuously expose more material of the same composition and properties so that no change in mechanical or electrical characteristics takes place because of arc-induced ablation. Furthermore, any surface damage to insulators during installation or maintenance of the pad-mounted gear shall expose material of the same composition and properties so that insulators with minor surface damage need not be replaced.

B. High-Voltage Bus

1. Bus and interconnections shall consist of aluminum bar of 56% IACS conductivity.

2. Bus and interconnections shall withstand the stresses associated with short-circuit currents up through the maximum rating of the pad-mounted gear.

3. Bolted aluminum-to-aluminum connections shall be made with a suitable number of galvanized steel bolts, with two Belleville spring washers per bolt, one under the bolt head and one under the nut. Bolts shall be tightened to 50 foot-pounds torque.



usly electrical

4. Before installation of the bus, all electrical contact surfaces shall first be prepared by machine-abrading to remove any aluminum-oxide film. Immediately after this operation, the electrical contact surfaces shall be coated with a uniform coating of an oxide inhibitor and sealant.

5. Tie bus, where furnished, shall consist of continuous, one-piece sections of aluminum bar with no intermediate splices. Flexible braid or cable shall not be used.

C. Provisions for Grounding

1. A ground-connection pad shall be provided in each termination compartment of the pad-mounted gear.

2. The ground-connection pad shall be constructed of 1/4 in.-thick steel. It shall be nickel plated and welded to the enclosure, and shall have a short-circuit rating equal to that of the pad-mounted gear.

3. Ground-connection pads shall be coated with a uniform coating of an oxide inhibitor and sealant prior to shipment.

4. A 3/8 in.-diameter copper rod, connected to the ground-connection pad, shall be provided in each termination compartment for switches and bus. The rod shall extend across the full width of the compartment to allow convenient grounding of cable concentric neutrals and accessories, and shall have a short-circuit rating equal to that of the pad-mounted gear.

5. Continuous copper ground bus shall be provided across the full width of each termination compartment for fuses. For each fuse mounting, there shall be a ground ring made of 3/8 in.-diameter copper rod bolted to the ground bus and placed to allow convenient grounding of cable concentric neutrals and accessories. Ground rings and bus shall have a short-circuit rating equal to that of the pad-mounted gear.

D. Bushings and Bushing Wells

1. Bushings and bushing wells shall conform to ANSI/IEEE Standard 386 (ANSI Standard C119.2).

2. Bushings and bushing wells shall be of a cycloaliphatic epoxy resin system with characteristics and restrictions as follows:

3. Operating experience of at least 15 years under similar conditions.

4. Adequate leakage distance for in-air application established by test per IEC Publication 507, “ArtificialPollution Test on High Voltage Insulators to be Used on AC Systems.”

5. Adequate strength for short-circuit stress established by test.

6. Conformance with applicable ANSI standards.

7. Homogeneity of the cycloaliphatic epoxy resin throughout each bushing or bushing well to provide maximum resistance to power arcs. Ablation due to high temperatures from power arcs shall continuoexpose more material of the same composition and properties so that no change in mechanical orcharacteristics takes place because of arc-induced ablation.

8. Bushings and bushing wells shall be mounted in such a way that the semi-conductive coating is solidly grounded to the enclosure.

9. Bushings rated 600 amperes continuous shall have a removable threaded stud so that the bushings are compatible with all 600-ampere elbow systems—those requiring a threaded stud as well as those that do not.

E. Termination Compartments

1. Termination compartments for switches shall have bushings, and termination compartments for fuses shall have bushing wells to permit connection of elbows. The bushings and bushing wells shall be mounted on the interior walls at a minimum height of 33 inches above the enclosure base.

2. Termination compartments for bus shall have bushing wells to permit connection of elbows. The bushing wells shall be mounted on the interior walls at a minimum height of 25 inches above the enclosure base.

3. Termination compartments for bushings rated 600 amperes continuous shall be of an adequate depth to accommodate two 600-ampere elbows mounted piggyback, encapsulated surge arresters or grounding elbows mounted on 600-ampere elbows having 200-ampere interfaces, or other similar accessory combinations without the need for an enclosure extension.



4. Termination compartments for bushing wells rated 200 amperes continuous shall be of an adequate depth to accommodate 200-ampere elbows mounted on portable feed-thrus or standoff insulators, or other similar accessory combinations without the need for an enclosure extension.

5. Termination compartments shall be provided with one parking stand for each bushing or bushing well. The parking stand shall be located immediately adjacent to the associated bushing or bushing well and shall accommodate standard feed-thrus and standoff insulators, and other similar accessories.

6. Each termination compartment for a switch shall be equipped with a viewing window to allow visual inspection of interrupter switch blades to allow positive verification of switch position.

7. Each termination compartment for a set of fuses shall be equipped with a set of viewing windows to allow visual inspection of blown-fuse indicators.

F. Enclosure

1. The pad-mounted gear enclosure shall be of unitized monocoque (not structural-frame-and-bolted-sheet) construction to maximize strength, minimize weight, and inhibit corrosion.

2. The basic material shall be 11-gauge hot-rolled, pickled and oiled steel sheet.

3. All structural joints and butt joints shall be welded, and the external seams shall be ground flush and smooth. The gas-metal-arc welding process shall be employed to eliminate alkaline residues and to minimize distortion and spatter.

4. To guard against unauthorized or inadvertent entry, enclosure construction shall not utilize any externally accessible hardware.

5. The base shall consist of continuous 90-degree flanges, turned inward and welded at the corners, for bolting to the concrete pad.

6. The door openings shall have 90-degree flanges, facing outward, that shall provide strength and rigidity as well as deep overlapping between doors and door openings to guard against water entry.

7. Gasketing between the roof and the enclosure shall guard against entry of water and airborne contaminants and shall discourage tampering or insertion of foreign objects.

8. A heavy coat of insulating “no-drip” compound shall be applied to the inside surface of the roof to minimize condensation of moisture thereon.

9. An internal steel-enclosed compartment shall encase the interrupter switches and fuses for electrical isolation and protection from contamination. The compartment shall have a galvanized steel sheet floor to exclude foliage and animals. The floor shall have screened drain vents to allow drainage if the enclosure is flooded. The top of this compartment shall be gasketed to provide sealing with the enclosure roof.

10. Insulating barriers of NEMA GPO3-grade fiberglass-reinforced polyester shall be provided for each interrupter switch where required to achieve BIL ratings. Additional insulating barriers of the same material shall isolate the tie bus (where furnished).

11. Full-length steel barriers shall separate adjoining termination compartments.

12. Lifting tabs shall be removable. Sockets for the lifting-tab bolts shall be blind-tapped. A resilient material shall be placed between the lifting tabs and the enclosure to help prevent corrosion by protecting the finish against scratching by the tabs. To further preclude corrosion, this material shall be closed-cell to prevent moisture from being absorbed and held between the tabs and the enclosure in the event that lifting tabs are not removed.

13. The enclosure shall be provided with an instruction manual holder.

G. Doors

1. Doors shall be constructed of 11-gauge hot-rolled, pickled and oiled steel sheet.

2. Door-edge flanges shall overlap with door-opening flanges to discourage tampering or insertion of foreign objects.



l

It sh

It sh

ng access to solid-material power fuses shall have provisions to store spare fuse units or

all be provided with a zinc-nickel-plated steel door holder located above the door opening. to

H.

ll coverage at joints and blind areas shall be achieved by processing enclosures independently of

rsion coating to improve the

izing,

g

sion and protect the steel

ing

000 hours of exposure to salt-spray testing per ASTM B 117 with:

as evaluated per ASTM D

n 1/8 in. from the scribe.

M D 714.

no chalking D

esion testing per ASTM D 3359 Method B, with no loss of finish.

ping or

3. Doors shall have a minimum of two extruded-aluminum hinges with stainless-steel hinge pins, and interlocking extruded-aluminum hinge supports for the full length of the door to provide strength, security, and corrosion resistance. Mounting hardware shall be stainless steel or zinc-nickel-plated steel, and shall not be externally accessible to guard against tampering.

4. Doors shall be hinged at the sides to swing open with minimum effort. Doors hinged at the top requiring significant effort to lift open shall not be allowed.

5. In consideration of controlled access and tamper resistance, each door (or set of double doors) shall be equipped with an automatic three-point latching mechanism.

6. The latching mechanism shall be spring-loaded, and shall latch automatically when the door is closed. Allatch points shall latch at the same time to preclude partial latching.

7. A pentahead socket wrench or tool shall be required to actuate the mechanism to unlatch the door and, in the same motion, recharge the spring for the next closing operation.

8. The latching mechanism shall have provisions for padlocking that incorporate a means to protect the padlock shackle from tampering and that shall be coordinated with the latches such that:

a. all not be possible to unlatch the mechanism until the padlock is removed, and

b. all not be possible to insert the padlock until the mechanism is completely latched closed.

9. Doors providirefill units.

10. Each door shThe holder shall be hidden from view when the door is closed, and it shall not be possible for the holder swing inside the enclosure.

Finish

1. Fucomponents such as doors and roofs before assembly into the unitized structures.

2. All exterior seams shall be filled and sanded smooth for neat appearance.

3. To remove oils and dirt, to form a chemically and anodically neutral convefinish-to-metal bond, and to retard underfilm propagation of corrosion, all surfaces shall undergo a thorough pretreatment process comprised of a fully automated system of cleaning, rinsing, phosphatsealing, drying, and cooling before any protective coatings are applied. By utilizing an automated pretreatment process, the enclosure shall receive a highly consistent thorough treatment, eliminatinfluctuations in reaction time, reaction temperature, and chemical concentrations.

4. After pretreatment, protective coatings shall be applied that shall help resist corroenclosure. To establish the capability to resist corrosion and protect the enclosure, representative test specimens coated by the enclosure manufacturer’s finishing system shall satisfactorily pass the followtests:

a. 4

1) Underfilm corrosion not to extend more than 1/32 in. from the scribe,1645, Procedure A, Method 2 (scraping); and

2) Loss of adhesion from bare metal not to extend more tha

b. 1000 hours of humidity testing per ASTM D 4585 using the Cleveland Condensing Type Humidity Cabinet, with no blistering as evaluated per AST

c. 500 hours of accelerated weathering testing per ASTM G 53 using lamp UVB-313, withas evaluated per ASTM D 659, and no more than 10% reduction of gloss as evaluated per ASTM523.

d. Crosshatch-adh

e. 160-inch-pound impact, followed by adhesion testing per ASTM D 2794, with no chipcracking.



s of abrasion testing per ASTM 4060, with no penetration to the substrate.

t.

material, such as PVC gasket, shall be applied to the entire underside of the

led and the components (switches, fuses, bus, etc.) are

.

red:

ents of ANSI Standard Z55.1 for

m. st corrosion, all hardware (including door fittings, fasteners, etc.), all operating-er

2.04 BASIC C

hes shall be enclosed in an inner steel compartment and shall be provided with bushings

hort-

rnally accessible 3/4 in. hex switch-operating

g switch-operating handle. The switch-operating

led by the switch h frame,

pter switch shall be completely assembled and adjusted by the switch manufacturer on a single

f. 3000 cycle

g. Certified test abstracts substantiating the above capabilities shall be furnished upon reques

h. After the finishing system has been properly applied and cured, welds along the enclosure bottomflange shall be coated with a wax-based anticorrosion moisture barrier to give these areas added corrosion resistance.

i. A resilient closed-cellenclosure bottom flange to protect the finish on this surface from scratching during handling and installation. This material shall isolate the bottom flange from the alkalinity of a concrete foundation to help protect against corrosive attack.

j. After the enclosure is completely assembinstalled, the finish shall be inspected for scuffs and scratches. Blemishes shall be touched up by hand to restore the protective integrity of the finish.

k. The finish shall be olive green, Munsell 7GY3.29/1.5

l. The following optional feature should be specified as requi

1) The finish shall be outdoor light gray, satisfying the requiremNo. 70.

To guard againmechanism parts, and other parts subject to abrasive action from mechanical motion shall be of eithnonferrous materials, or galvanized or zinc-nickel-plated ferrous materials. Cadmium-plated ferrous parts shall not be used.

OMPONENTS

A. Interrupter Switches

1. Interrupter switcrated 600 amperes continuous to permit connection of elbows external to the switch compartment.

2. Interrupter switches shall have a two-time duty-cycle fault-closing rating equal to or exceeding the scircuit rating of the pad-mounted gear. These ratings define the ability to close the interrupter switch twiceagainst a three-phase fault with asymmetrical current in at least one phase equal to the rated value, with the switch remaining operable and able to carry and interrupt rated current. Tests substantiating these ratings shall be performed at maximum voltage with current applied for at least 10 cycles. Certified test abstracts establishing such ratings shall be furnished upon request.

3. Interrupter switches shall be operated by means of an extehub. The switch-operating hub shall be located within a recessed stainless-steel pocket mounted on the side of the pad-mounted gear enclosure and shall accommodate a 3/4-in.deep-socket wrench or a 3/4-in. shallow-socket wrench with extension. The switch-operating-hub pocket shall include a padlockable stainless-steel access cover that shall incorporate a hood to protect the padlock shackle from tampering. Stops shall be provided on the switch-operating hub to prevent overtravel and thereby guard against damage to the interrupter switch quick-make quick-break mechanism. Labels to indicate switch position shall be provided in the switch-operating-hub pocket.

4. Each interrupter switch shall be provided with a foldinhandle shall be secured to the inside of the switch-operating-hub pocket by a brass chain. The folded handle shall be stored behind the closed switch-operating-hub access cover.

5. Interrupter switches shall utilize a quick-make quick-break mechanism instalmanufacturer. The quick-make quick-break mechanism shall be integrally mounted on the switcand shall swiftly and positively open and close the interrupter switch independent of the switch-operating-hub speed.

6. Each interrurigid mounting frame. The frame shall be of welded steel construction such that the frame intercepts the leakage path which parallels the open gap of the interrupter switch to positively isolate the load circuit when the interrupter switch is in the open position.



nless-steel springs to provide constant high contact

switches shall be provided with a single blade per phase for circuit closing, including fault

positively and inherently

r

wo source interrupter switches.

te one three-phase fault indicator with three

be provided without studs.

B.

aterial Power Fuses

ses shall utilize refill-unit-and-holder or fuse-unit-and-end-fitting

e unblown

rated 10 amperes or larger, shall be helically coiled to

in air to help prevent damage from

nits shall have a single fusible element to eliminate the possibility of unequal

e-current characteristics that are permanently cs

detecting and interrupting all faults, whether large,

tained within the fuse, and

l be equipped with a blown-fuse indicator that shall provide visible

PART 3

k shall be in accordance with these specifications and Drawings.

llation instructions.

7. Interrupter switch contacts shall be backed up by staipressure.

8. Interrupterclosing, continuous current carrying, and circuit interrupting. Spring-loaded auxiliary blades shall not be permitted. Interrupter switch blade supports shall be permanently molded in place in a unified insulated shaft constructed of the same cycloaliphatic epoxy resin as the insulators.

9. Circuit interruption shall be accomplished by use of an interrupter which issequenced with the blade position. It shall not be possible for the blade and interrupter to get out of sequence. Circuit interruption shall take place completely within the interrupter, with no external arc oflame. Any exhaust shall be vented in a controlled manner through a deionizing vent.

10. The following optional features should be specified as required:

a. Key interlocks shall be provided to prevent paralleling the t

b. Key interlocks shall be provided to guard against opening the door(s) of fuse-termination compartment(s) unless all switches are locked open.

c. Mounting provisions shall be provided to accommodasingle-phase sensors in each switch-termination compartment.

d. Interrupter switch bushings rated 600 amperes continuous shall

Power Fuses

1. Solid-M

a. Solid-material power fuconstruction. The refill unit or fuse unit shall be readily replaceable and low in cost.

b. Fusible elements shall be nonaging and nondamageable so it is unnecessary to replaccompanion fuses following a fuse operation.

c. Fusible elements for refill units or fuse units, avoid mechanical damage due to stresses from current surges.

d. Fusible elements that carry continuous current shall be supportedcurrent surges.

e. Refill units and fuse ucurrent sharing in parallel current paths.

f. Solid-material power fuses shall have melting timaccurate to within a maximum total tolerance of 10% in terms of current. Time-current characteristishall be available which permit coordination with source-side and load-side protective relays, automatic circuit reclosers, and other fuses.

g. Solid-material power fuses shall be capable ofmedium, or small (down to minimum melting current); under all realistic conditions of circuitry; and with line-to-line or line-to-ground voltage across the fuse. They shall be capable of handling the full range of transient recovery voltage severity associated with these faults.

h. All arcing accompanying solid-material power fuse operation shall be conall arc products and gases evolved shall be effectively contained within the exhaust control device during fuse operation.

i. Solid-material power fuses shalevidence of fuse operation while installed in the fuse mounting.

EXECUTION

3.01 INSTALLATION

A. All installation wor

B. Install switchgear and accessories in accordance with the manufacturer’s written insta



s, s,

losure

of moving parts from switchgear units and

tchgear units and components per manufacturer’s recommendations.

pection and testing on the pad-mounted switchgear as follows:

nt.

t of spare fuse

ance. Use low resistance ohmmeter, or check tightness of bolted

electrical and mechanical interlock systems for proper operation and sequencing.

de on locked

all be made with devices operated in off-normal positions.

bus section, phase-to-phase and phase-to-ground for

B. rformed in accordance with Section 16960, Electrical Field Testing.

END OF SECTION

C. Install switchgear so that the installation complies with CCR Title 8, NEMA, ANSI, NFPA and local codeordinances and regulations. Should any work be performed contrary to local codes, ordinances and regulationthe Contractor shall bear full responsibility for such violations and assume all costs arising there from.

D. Install ground grid and ground rods per construction Drawings. Ground switchgear ground bus and encper manufacturer’s recommendation and per construction Drawings.

E. Remove temporary lifting eyes, and brackets and temporary blocking components.

F. Assemble swi

3.02 INSPECTION AND TESTING

A. The Contractor shall perform ins

1. Check for proper anchorage, required area clearances, physical damage and proper alignme

2. Inspect all doors, panels and sections for paint, dents, scratches, fit, and missing hardware.

3. Contractor shall furnish and install one set (3 per set) of fuse re-fills and also provide one sere-fills per each fused section or cubicle.

4. Inspect all bus connections for high resistbus joints by calibrated torque wrench method. Do not tighten factory-made connections employing Belleville washers unless they are visibly loose. Refer to manufacturer’s instructions for proper torque levels.

5. Test all

a. Closure attempt shall be made on locked open devices. Opening attempt shall be maclosed devices.

b. Key exchange sh

6. Clean entire switchgear using manufacturer’s approved methods and materials.

7. Inspect insulators for evidence of physical damage or contaminated surfaces.

8. Verify proper barrier and shutter installation and operation.

9. Exercise manually operated and power-operated switches.

10. Inspect all indicating devices for proper operation.

11. Perform insulation resistance tests (Megger) on eachone (1) minute.

Other tests shall be pe

Documents

SECTION 01572 CONSTRUCTION AND DEMOLITION WASTE …downloads.planetbids.com/NETConnect/Downloads/02...Construction and Demolition Waste Management 1628 01572-2 September 2, 2009 Addendum