Questions - Electrical Distribution System B2 Area20200518.pdf
PDF 244 KB Posted
- Attached to
- Repair Electrical Distribution System, B2 Area Federal contract opportunity
- Solicitation number
- FA441820R0008
About this file
This document contains questions and answers regarding clarification of drawings for a project to repair an electrical distribution system at Joint Base Charleston - Weapons Station in Goose Creek, South Carolina. The project drawings showed conflicting information about installing a new electrical underground service from a transformer to Building 900. The questions asked for clarification, and the answers explained that secondary hand holes would need to be installed to allow the electrical work to be completed within the time limits specified in the contract, which restrict power outages to outside normal working hours. Installing hand holes would allow the secondary connections to be made without exceeding those time restrictions. Therefore, the drawing showing the installation of hand holes to connect the new and existing secondary conductors was determined to be correct and in line with the contract specifications.
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Text version
May 18, 2020
Request for clarification from Contractor for BLDG 900:
Drawing CS105- Asphalt is to be removed and replaced from new pad mount transformer to
Bldg.900.
Drawing ES407 – new Electrical Underground service from Transformer to Bldg. 900
Drawing ES408- Existing building 900 riser diagram – Remove existing conductors from new hand hole back to pole. Remove above grade conduit and abandon underground conduit in place.
Drawing ES 408-Bldg 900 Riser Diagram – Secondary service from transformer to new hand hole. Splice new secondary conductors to existing secondary conductors in hand hole with copper to aluminum compression splice.
Conflicting drawings in respect to new EUS to Bldg 900, Please clarify.
Answers from 628th CES PM
My answer would be to plan on completing the work in the most efficient and cost effective manner. Specifications 01 11 00, para. 1.6.2 and 01 14 00, para. 1.2.5 limit power outages to outside normal working hours (M-F, 7 am – 3:30 pm), so secondary hand holes are usually put in place to accommodate this requirement. If there’s no way that the entire electrical secondary could be replaced in the time limit set forth in the specifications, hand holes will be required.
The original intent was to install hand holes for this reason. Therefore, drawing ES408 would be correct and in congruence with the specifications.
File details come from the government source that posted it. Updated .