Without proper training, you could have a fully insulated suit and still bite the dust. Just don’t wfp near power lines.
Electricity always looks for a path out. While building a power substation I worked with some electricians. A some of them had weird marks on their arms, legs or whatever. When power hits you, it looks for a way out and blowing off an arm is a quick way out. One lady just lost a chunk of forearm muscle. She was lucky.
So if a fully licensed electrician who is used to working with 3 phase systems can get electrocuted, then chances are that a window cleaner can too.
