Receiving, handling and storage
Manual | Manual close button |
CHARGED/DISCHARGED indicator
OPEN/CLOSED indicator
Operations counter
Manual open/trip button
Figure 1: Type 38-3AH3 vacuum circuit breaker front panel controls
Storage procedure
1.Whenever possible, install the circuit breaker in its assigned switchgear enclosure for storage. Follow instructions contained in the type GM38 38 kV
2.When the circuit breaker needs to be placed on its pallet for storage, be sure the unit is securely bolted to the pallet and covered with polyethylene film at least 10 mils thick.
Indoor storage
Whenever possible, store the circuit breaker indoors. The storage environment must be clean, dry and free of such items as construction dust, corrosive atmosphere, mechanical abuse and rapid temperature variations.
Outdoor storage
Outdoor storage is not recommended. When no other option is available, the circuit breaker must be completely covered and protected from rain, snow, dirt and all other contaminants.
Space heating
Space heating must be used for both indoor and outdoor storage to prevent condensation and corrosion. When the circuit breaker is stored outdoors, 250 watts per circuit breaker of space heating is recommended. If the circuit breaker is stored inside the switchgear enclosure, and the switchgear is equipped with space heaters, energize the space heaters.
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