Good information

[Gus]

A good read

https://content.fluke.com/promotions/promo-dmm/0518-dmm-campaign/dmm/fluke_dmm-chfr/files/safetyguidelines.pdf

 

[RuudNL]

An important safety rule for me is: never trust somebody else his work!
I always want to check myself if it is safe to work on a piece of equipment or an installation.

 

[Rob Flinn]

An important safety rule for me is: never trust somebody else his work!
I always want to check myself if it is safe to work on a piece of equipment or an installation.

Agree.  You only really learn this when you have trusted the wrong someone else .....

 

[PRR]

https://darwinawards.com/darwin/darwin1999-50.html

 

[Khron]

A more generic, but arguably more thorough(?) - https://www.youtube.com/watch?v=ic5R4C5HRUg

 

[pucho812]

Safety is always a priority when dealing with electrical.