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2) To fully release gas in OLTC, please follow Chapter 10.1.1
3) For pre-operation procedure, please follow Chapter 10.2.1
4) Please make sure that the OLTC oil conservator’s lowest oil level signal contact is connected to the
circuit breaker’s trip circuit.
5) Check whether the gas relay function is normal according to the Huaming gas relay QJ-25 series
instruction manual.
6) The protective strip of the pressure relief valve must be removed before putting it into operation.
Follow safety instructions of all functional inspections and tests during commissioning and the safety
instructions described in Chapters 9.2 and 10.2.2.
Please confirm: there is no open flame, heat source or electric spark (such as electric
spark produced by static electricity) within its direct contact range, and there is no
possibility of generating it.
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