I am a junior electrical technician. This question is not on theory but on the practical procedure of how to take a thermal imaging on an electrical switchboard. I will appreciate if some veteran electrical engineer and enlighten me on this.
Recently I have did a thermal imaging on an electrical switchboard and my company asked me to remove the protective cover to take the thermal imaging when the circuit are all live. I thought this was dangerous as if I trip or fall right in front of the board, I will get shocked and potentially die.
My question is this - should the proper procedure to take a thermal imaging is to switch off the circuit first? My logic is that when I switch off the circuit, technically the electrical breakers contact point will still be hot/warm, so capturing the thermal image profile will still be valid.
PS: If this is the wrong platform, please let me know where I can post it.