Question

In case of a fire before the fire man use water hoses,they shut the main electrical supply for the area.Explain why they do this?
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Answer 1

Answer:

W​a​t​e​r is a good conductor of electricity. ... Therefore, in case of a fire, the firemen shut off the main electrical supply for the area before they use the water hoses.

Explanation:

Answer 2

Water conduct electricity. if the fireman wouldn't shut the main electrical supply then he might got an electrical shock