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Electrical Technology Daily Question 2018.12.21

2018-12-21View Original

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In the 500kV outdoor distribution installations of thermal power plants and substations, when power cables and control cables are laid in the same cable trench, which of the following methods is suitable for separating them? A. Fireproof sealing material should be used. B. Fireproof partitions should be used. C. Fireproof coating should be used. D. Fire-retardant strips should be used. Answer:

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