Vandenberg – XUMU 12-1268B- Replace 12 KV Switchgear at Substation A – Bldg 21170
Vandenberg AFB, CA

Schwab Engineering has provided professional engineering services to provide field investigation and prepare construction contract documents for the replacement of 12kV Switchgear at Substation A, Building 21170. The existing 12KV switchgear is a double ended consisting of twelve (12) vertical sections.

The new 12KV switchgear will be manufactured and assembled with the same number of vertical sections and same number of breakers, spare and space to match the existing switchgear. Control power for the new switchgear will be 125V DC from the existing station batteries with charger for closing and tripping of the breakers.

The new switchgear will have an infrared window at each rear door to allow the VAFB personnel to complete a thermal inspection of the switchgear without opening doors. The new 12KV switchgear will be manufactured and assembled to comply with ANSI Standards, IEEE, U.L., IBC/CBC Seismic and the California Code.