Addendum__1_-_Elec_J.docx

ADDENDUM #1

Repair Electrical Distribution System Area J

Project: DKFX 07-0003J

Joint Base Charleston – Air Base, SC

28 JULY 2015

CLARIFICATIONS:

1. The attached drawings should be referenced for locati ng underground util ities in the area of work between bu ildings 700, 550, and 55 1 . A new 20" water main is being installed i n the area of bui ld ing 551, wh ich will requ ire navigation for the underground electrical work in the area. These drawings are only provided to alert the construction bidders to the add ition of utiliti es in the area. These are not as-bu ilt drawings and don 't represent exact locations of utilities in the area. Site Utility Plan, Building 550 and 551 (Attachment 1) 2 sheets.

2. The latest version of UFC 3-550-01 shall be used to determine conduit and conductor sizing. UFC 3-550-01 shall take precedence over any differing design requirements, i.e. 6” conduit versus 5” conduit that is specified in the design.

3. Electrical metering requirements will meet specification Section 26 27 13.10 30.

(Attachment 2) 12 Pages

4. Switch extender base pads should be installed according to industry standards and previously completed installations. The industry standard shall take precedence over any differing design requirements.

5. The latest EPA requirements for transformer efficiencies shall be used for obtaining new equipment for installation.

6. Moving telephone and cable overhead lines should be coordinated with the underground electrical work for this project and should also be included in the bidders’ estimates according to the design.

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