In case of a fire, before the firemen use the water hoses, they shut off the main electrical supply for the area. Explain why they do this.

 In case of a fire, before the firemen use the water hoses, they shut off the main electrical supply for the area. It is because the water used in hoses is a good conductor of electricity as this water contains impurities. So to save their and others' life from electrocution they shut off the main electrical supply for the area.

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Updated on: 10-Oct-2022

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