Hi to all!
I am wondering about the needed quality of the water which is used on outdoor oil-transformers fire fighting deluge systems. Just poor potable water is good enough or is needed something special like demi water with low conductivity or something else?
Thanks in advance!
I would be grateful if you could help me to find any Technical Papers about the selection of an earthing method for a medium voltage system (6 kV).It is an industrial application and I want to select between an unearthed system and a high impedance system.