DOCUMENT ADDENDUM NO. 4. Issued to all Bidders: Date: October 14, Contract Name: Electrical Installation. Contract Number: C8410

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1 DOCUMENT ADDENDUM NO. 4 Issued to all Bidders: Date: October 14, 2015 Contract Name: Electrical Installation Contract Number: C8410 This addendum forms a part of the Bid described above. The original Contract documents and any prior addenda remain in full force and effect except as modified by the following which shall take precedence over any contrary provisions in the prior documents. Each Bidder shall acknowledge receipt of this addendum by affixing signature below, by noting this addendum on Bidder s Bid Form, and by attaching this addendum to the Bid. ACKNOWLEDGEMENT The undersigned acknowledges receipt of this addendum and the Bid submitted is in accordance with information, instructions, and stipulations set forth herein. Bidder: By: Date:

2 DOCUMENT ADDENDUM NO. 4: continued ATTACHMENT B, SPECIFICATIONS: 1. Section Cable Tray and Wireway a. Item 1.01.B. Change NEMA cable tray class designation from 20C to 20C

3 SECTION CABLE TRAY AND WIREWAY PART 1 - GENERAL 1.01 SUMMARY: A. This Section includes all wireway, cable tray, cable rack, and supports as indicated or specified unless shown to be furnished by Others. B. All 6 high cable tray shall have a class designation of 20C+ per NEMA VE1 unless indicated otherwise. C. Related Work Specified Elsewhere: 1. All other Sections of DIVISION REFERENCES: A. Applicable Standards: 1. American Society For Testing and Materials (ASTM): a. A123/A123M - Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products. 2. Underwriters' Laboratories, Inc. (UL): Require products which are UL-listed and labeled. 3. National Electrical Manufacturers Association (NEMA): a. VE 1 - Metal Cable Tray Systems. b. VE 2 Cable Tray Installation Guidelines. 4. National Fire Protection Association (NFPA): a National Electrical Code (NEC) SUBMITTALS: A. Submit as specified in DIVISION 1. B. Include but not limited to, the following: 1. Construction details of all straight sections and fittings showing cross-sectional dimensions. 2. Catalog cuts of installation and mounting materials used. 3. Details of special support arrangements not indicated on drawings. 4. Sample of labels for cable tray identification. PART 2 - PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS: A. Wireway: 1. Hoffman Engineering Company. 2. Square D Company. B. Cable Tray: 1. Legrand. 2. Cope. 3. T&B. 4. Cooper B-Line. C. Cable Rack: 1. Underground Devices, Incorporated. D. Supports for Wireway and Cable Tray: 1. Cooper B-Line. 2. Unistrut Products Corporation _8410_ REV 1

4 E. Cable Tray Identification Tags: 1. W. H. Brady Co. 2. K.C. Plastic Laminating Company. 3. Electromark Company WIREWAY: A. Lay-in type with full-length hinged covers for full channel access. B. Coordinated covers and fittings for a completely enclosed raceway. C. Furnish sizes indicated. D. Satin gray enamel finish inside and outside over phosphatized surfaces, or electrogalvanized steel. E. Conform to NEMA 1 type enclosure for all indoor nonhazardous areas where oil, dust, or water is not a problem. F. Conform to NEMA 4 type enclosure for all outdoor nonhazardous areas without knockouts, to protect against wind-blown dust and rain, splashing water, and hose-directed water. G. Conform to NEMA 12 type enclosure for all indoor nonhazardous areas to protect against dust, dirt, and light splashing, seepage, dripping, and external condensation of noncorrosive liquids CABLE TRAY - LADDER TYPE: A. Prefabricated structure consisting of two longitudinal side rails connected by individual transverse members (rungs) which provide the cable supporting means. B. Cable tray system components including straight sections, fittings, splice plates, divider strips, covers, hardware, and other parts shall be constructed of: 1. Aluminum alloys with natural finish in all other areas. B-Line type or Owner approved equal. 2. All components within a cable tray system shall be manufactured of the same material. 3. Only 25 feet length straight sections shall be furnished. 4. Required list of components and cable tray bill of material shall be developed by Contractor based on Contract Drawings. C. Minimum inside depth of five (5) inches and overall depth of six (6) inches, unless otherwise indicated. D. Width of tray shall be as indicated. E. Transverse member (rung) spacing of nine (9) inches center-to-center. F. Transverse members (rungs) to have a minimum cable bearing surface of 3/4-inch. G. Continuously smooth interior after field assembly with no sharp corners or burrs. H. Bolts or rivets with round heads to the inside. I. Furnish all vertical and horizontal fittings as indicated. J. Fittings designed to provide the same load capacity as straight sections and with 12-inch radii of bends unless otherwise indicated. K. Fittings cross sectional dimensions compatible with straight sections. L. Furnish ventilated flanged tray covers of minimum.040-inch thick aluminum or inch thick fiberglass. Tray covers shall be of same material and finish as tray. Tray covers shall be applied on vertical tray from floor to Elevation 10-0 and Outdoor. M. Dead-end cover plates. N. Divider strips for separating various classes of cables in tray. All tray segments designated for instrument cable shall include one divider for cable segregation with the exception of the following segments that shall have additional dividers (quantity of dividers indicated in parentheses): 1. 00TI111 (three). REV _8410_260536

5 2. 00TI135 (three) TI141 (three) TI142 (three) TI143 (three) TI144 (three) TI147 (three) TI148 (three) TI149 (three) SUPPORTS: A. General types as indicated and required. B. Furnish and install galvanized unistrut, angle iron and small channel as required. Outdoor supports shall be of Hot Dipped Galvanized after fabrication (HDGAF) type steel. C. Adequate design strength to support tray without noticeable deflection of support members. Provide additional bracing where necessary. D. Supply all necessary rods, anchors, inserts, clamps, tie-down clips, spacers, shims, bolts, brackets, framing channel type inserts, and miscellaneous steel. All material shall be electrogalvanized, cadmium-plated, or otherwise suitably corrosion protected. E. Install double nuts on all hanger rods. F. Fabricated of structural steel or manufactured framing member equal to "Unistrut" P-1000 series as manufactured by Unistrut Co., unless otherwise indicated. G. Supports shall be designed for seismic requirements specified in DIVISION FACTORY TESTS: A. All tests shall follow the NEMA VE 1 test standards CABLE TRAY IDENTIFICATION TAGS: A. Instrument, 600V Control, and Power: Use labels with 2-inch black letters identifying cable tray number. B. 5-kV or Higher Voltage: 1. Use labels with 2-inch red letters identifying cable tray number. 2. Use labels with 2-inch red letters identifying voltage (example for 5-kV, "DANGER 5,000 VOLTS"). C. Label adhesive to be able to hold on curved surfaces and withstand temperatures up to 150 o F, in indoor or outdoor environments. D. Labels to be resistant to oil, dirt, and abrasion. E. A broad-tipped permanent ink-type marker shall be used to identify cable trays until the permanent labels are installed. F. Made by KC Plastic Laminating Company. 1. Gothic, 2-inch, black characters on white background. 2. Made of white flame-retardant PVC. 3. "Permastick" adhesive and peel-off backing. G. Made by W.H. Brady Company: 1. Numbers generated by the "Bintab Labeling System" with each cable tray number on a continuous white background strip. 2. Black letters on white background of 4 mil vinyl. 3. Label size of 2.5 inches high and 8.25 inches wide. 4. Text size of 2 inches high with 1 character per inch. 5. Furnish with outdoor numbers and letters: 81799_8410_ REV 1

6 a. B927 over-laminated for long lasting performance in all environments. b. V826 permanent adhesive for cold weather installation. c. UV resistant ink. H. Made by Electromark Company: 1. Each cable tray number generated on a continuous white background strip. 2. C-1003 series with black letters on a white background of 6 MIL polyester film. 3. Label size of 2.5 inch high and 8.25 inches wide. 4. Text size of 2 inches high with 1 character per inch. 5. Suitable for outdoor installation in all environments. a. Long lasting performance in all environments. b. Permanent adhesive for cold weather installation. c. UV resistant ink. d. Furnish with wrap around bands to insure that the identification tags will not lift off. I. All cable trays shall be labeled with the unique number included in the raceway schedule WIREWAY IDENTIFICATION TAGS: A. Wireway identification tags shall meet the same specifications as indicated for cable tray. B. All wireway shall be labeled with the unique number included in the raceway schedule. C. A broad-tipped permanent ink-type marker shall be used to identify wireways until the permanent labels are installed. PART 3 - EXECUTION 3.01 INSTALLATION: A. Wireway: 1. Install only at locations indicated or as specifically approved by Engineer. 2. Support at intervals of 4 feet maximum necessary for rigid support and neat alignment. 3. Otherwise install same as cable tray. B. Cable Tray: 1. Install as indicated. 2. Support at intervals as indicated and as necessary for rigid support and neat alignment, suitably braced to prevent movement in any direction. 3. Install to create a continuous, low-resistance, electrical ground return path as specified in SECTION Coordinate all openings in floors and walls necessary for passage of cable tray, and provide openings where necessary. 5. Install a cable tray to box connector at point of tray entrance into each electrical enclosure, including switchgear, motor control centers, pull boxes, and similar equipment. 6. Install covers on all solid bottom tray, top level of outdoor tray stacks, tray carrying cables rated 2 kv and above, all vertical tray sections, vertical risers from panelboards, switchgear, and similar equipment; also at all locations where accumulation of debris in tray is possible such as under floor openings, stairs, open grating, and similar locations. 7. Install cable tray covers and fasteners in accordance with NEMA VE 2 and the manufacturer s recommendations. Fastener type shall be selected to satisfy Site Conditions as specified in SECTION Install special fittings such as expansion joint splice plates in straight runs over 75 feet and at building expansions. REV _8410_260536

7 9. Install divider strips in all trays carrying cables of different service classes, placed to separate proportionately to their areas instrumentation/thermocouple, control, and power cables where they are run in the same tray section and fittings. No other cable shall be installed in cable trays designated for VFD cable. 10. Clean out all cable trays after completion of cable installation and just prior to installation of tray covers. 11. All trays shall be ladder type. C. Supports: 1. Furnish general types of supports as indicated, specified, or required. 2. Repair damage from all field cuts, scars, or abrasions on galvanized supports with zincrich paint recommended by the manufacturer. D. Cable Tray and Wireway Identification Tags: 1. Clean all surfaces where the cable tray identification labels are to be installed. 2. Space labels at a maximum of 25-foot intervals for 600V control, power, and instrument cable trays. 3. Space labels at a maximum of 10-foot intervals for 5-kV or higher voltage cable trays. 4. Remove all temporary cable tray and wireway identification markings. E. Curbing, penetrations, fire and environmental barriers, seals, and flashing: See SECTION END OF SECTION _8410_ REV 1