Clarifications0004.pdf

W912LQ-12-B-0002

Attached per Amendment 0004

Clarifications:

1. VA ARNG has used different numbering for these OBIs on the bid schedule (i.e. OBI #3 on drawings is line item

0005 on the bid schedule, etc.), but the titles are the same. This item is identified in order to clear up any discrepancies within the construction documents only.

a. OBI #3 Retrofit and Renovate Existing Buildings (North) – Provide power and telecommunications infrastructure for targetry network at existing buildings 17, 19, 20, 21, and 22. This item is incorrectly identified as OBI #4 in the Electrical and Telecommunications drawings.

b. OBI #4 Retrofit and Renovate Existing Buildings (Center) – Provide power and telecommunications infrastructure for targetry network at existing buildings 18 and 25. This item is incorrectly identified as

OBI #5 in the Electrical and Telecommunications drawings.

c. OBI #5 Retrofit and Renovate Existing Buildings (East) - Provide power and telecommunications infrastructure for targetry network at existing buildings 16A, 16B, 23, 24A, 24B, and 24C. This item is incorrectly identified as OBI #6 in the Electrical and Telecommunications drawings. Also, building 16B is part of this OBI. The electrical sheet E-103 failed to identify 16B, but it is in fact part of this OBI.

2. The primary voltage on site is 7.2kV, not 4.16kV as indicated in the construction drawings. Contractor shall ensure that transformer primary configuration is provided that will work with the existing post electrical system.

3. The division of responsibilities between the construction contractor and the local electric utility are as follows:

a. Southside Electric Cooperative (SEC): will provide and install new underground electrical service in the enclave area, up to and including the transformer and transformer pad. This service will be for the Range

Operations – After Action Review building as indicated in the construction drawings. All coordination required for this service shall be done by the contractor. SEC installation fees will be billed directly to

VA ARNG.

b. Construction contractor: Will provide secondary service from the SEC provided pad mounted transformer at the Range Operations – After Action Review building. In the range area (beyond the gate), all new services (primary and secondary) and modifications to the existing primary system will be provided by the contractor in accordance with the attached SEC specifications. It is the contractor’s responsibility to coordinate with SEC, and to submit to all required SEC inspections as required for a complete and operative system.

4. The construction of the new gravel road (Road "A") is hereby removed from the construction documents. Please disregard Sheet C-013 specifying demolition of the existing drainage for this road. Also please disregard Sheet C-

301 showing the overlay for Road "A" and the installation of new 24" and 36" CMP drainage pipes.

Project Manual:

1. See attached specification: SEC SPEC February 2012. All new underground primary and modifications to the existing overhead primary system shall meet all SEC requirements outline herein.

2. Refer to specification section 260513. Underground primary cable shall be Okonite Cat. Number 163-23-4072, 1/0 Strd copper, 25kV, 260 mil wall, 100% insulation level, full neutral, direct burial cable or approved equal. The basis of design (Okonite) cable specifications shall override the original spec section 260513 in the event of a conflict. Installation, splicing, termination, etc. requirements shall be compatible with the proposed basis if design cable or approved equal.

Construction Drawings:

1. Refer to construction drawing E-100. Keyed note #2 shall be the contractor’s responsibility. Trenching, conductors, etc shall be per attached SEC specifications. At underground primary branch locations, provide a pad

W912LQ-12-B-0002

Attached per Amendment 0004 mounted single phase fuse/switch enclosure with fused switch. Fuse size will be determined during construction based on total loading. Underground cables shall be installed per detail UT-G1. Keyed note #3 shall be the contractor’s responsibility. Provide guyed deadend pole with underground primary riser to support existing overhead system at transition from overhead to underground. Refer to detail UA2 in the attached specification.

2. Refer to construction drawing E-101. SEC will provide underground transition from overhead to underground primary, new underground primary, pad mount transformer T-1 and pad as indicated on this sheet. This portion of the project will coordinated by the contractor and billed directly to VA ARNG separate from this contract. The contractor is responsible for all secondary work including final connection at the pad mount transformer.

3. Refer to construction drawing E-102. All work and materials indicated on this sheet shall be by the contractor.

Installation shall be per attached SEC specifications. Transformers and pads shall be installed per section UG.

4. Refer to construction drawing E-103. All work and materials indicated on this sheet shall be by the contractor.

Installation shall be per attached SEC specifications. Transformers and pads shall be installed per section UG in the attached specification.

5. Refer to construction drawing E-606 & E-607. Underground primary cable shall be Okonite Cat. Number 163-23-

4072, 1/0 Strd copper, 25kV, 260 mil wall, 100% insulation level, full neutral, direct burial cable or approved equal in lieu of the underground primary cable indicated in the power riser diagram.