Question

why are we advised not to use water to put out fire caused by electric wires

Answer 1

Water is conductive in nature and hence the electricity in the equipment could reach the extinguisher (the person dousing the fire using water) and can electrocute him/her.

Answer 2

cause. Water is a polar molecule and can conduct electricity . If we try to put of the fire caused by electric Wire the current in wire may pass through water and that can cause a big accident - The people beside it in contact of water may get an electric shock....