高压供电客户,在保证受电变压器不超载和安全运行的前提下,应同时考虑减少电网的无功损耗。一般客户的计算负荷宜等于变压器额定容量的()%~75%。
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配电装置的长度超过()m时,屏后应有两个通向本室或其他房间的出口,其距离不宜大于15m。
A. 6
B. 8
C. 10
D. 12
When anchoring,good practice requires 5 to 7 fathoms of chain for each fathom of depth. In deep water you should use().
A. the same ratio
B. more chain for each fathom of depth
C. less chain for each fathom of depth
D. two anchors with the same ratio of chai
部颁CDT规约遥测的控制字有哪些()
A. F4
B. 61
C. B2
D. 80