Specifications include, but are not limited to: The breaker shall meet the latest seismic requirements of IEEE C37.81 and 693 for the location and shipping methods. 5.2 Breaker shall be dead tank, three tank design, gang operated utilizing gaseous SF6 as an interrupting and insulating medium in a one-pressure "puffer" design. 5.3 The breaker shall not initially be installed and operated as an independent pole operated breaker. 5.4 There shall be one operating mechanism per pole; breaker shall be capable of conversion to true independent pole operation. 5.5 The breaker shall have a common frame or base mounting. The frame or base shall be of strong structural steel members or beams with each tank welded or bolted to the steel member or beams. The three (3) tank assembly shall be provided with hooks or lift holes such that the assembly shall not deform even if lifting forces are unequal or the unit is rolled or pulled into position. Two (2) stainless steel or copper ground pads, NEMA standard 2- hole, shall be provided on the base on diagonally opposite corners. 5.6 All surfaces of the equipment to be painted shall be thoroughly cleaned by sandblasting or other methods and then painted in accordance with referenced standards. The exterior finish shall be light gray ANSI No. 70. All finished or machine surfaces of steel, not painted, shall be coated with a removable corrosion resisting compound for shipment. 5.7 Breaker support frames shall be galvanized steel...
