Amendment_00004_Spec_Page_12.docx

Amendment 000004

COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

COMMENCEMENT AND COMPLETION: Refer to Section F clause 52.211-10.

SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, Western will require 30-calendar days for review of drawings or data submitted for approval.

COMMENCEMENT OF CONTROL WORK: Do not perform any control board or outdoor equipment wiring until receipt of Government-furnished wiring diagrams. Western will furnish outdoor wiring diagrams, schematics diagrams, control board wiring diagrams and RTU interface rack wiring diagrams no later than 20-calendar days after the delivery of the control boards. Include these restrictions in the construction program.

OUTAGE RESTRICTIONS: In addition to the restrictions listed in the construction standards, the following outage restrictions shall apply:

No outages are allowed on the Davis-Topock No. 2, 230-kV transmission line.

Only two (2) outages will be allowed on the Davis-Topock No. 1 230-kV transmission line:

One (1) continuous, 5-day outage between October 1, 2013 and December 1, 2013.

One (1) continuous, 60-day outage from January 2, 2014 through March 1, 2014.

Only one (1) continuous, 5-day outage will be allowed at Davis Substation on transformer KY7A, between October 1, 2013 and November 1, 2013.

CONSTRUCTION SCHEDULE RESTRICTIONS: The following construction schedule restrictions shall apply:

The transformer shall be relocated from Davis Substation to Longtin Substation by NLT November 1, 2013.

All lattice structure foundations shall be installed by NLT December 1, 2013.

The substation and control building (including control board installation and cabling to all equipment) shall be complete and ready for Western commissioning work by NLT January 2, 2014.

All lattice steel structures shall be installed and approach spans strung into the 230kV yard by NLT January 20, 2014.

The fiber optic overhead ground wire and fiber duct cable shall be installed and tested by NLT February 10, 2014.

MAXIMUM AVAILABLE FAULT CURRENT: When protective ground leads are required, the protective ground leads shall be sized to carry the maximum available fault current in accordance with the Standard 1 – General Requirements, Section 1.4 “Safety and Health” and the following:

Longtin Substation:

The maximum available fault current in the 230-kV area is 11,100 amperes.

The maximum available fault current in the 69-kV area is 8,400 amperes.

The maximum available fault current in the 24.9-kV area is 4,200 amperes.