Yesterday I passed SFS6002 electrical safety course and got SFS 6002 käytännössä book. SFS 6002 electrical safety training is for all electrical work in Finland engaged in compulsory education, which must be renewed every five years. Now I know somewhat more than before on electrical safety related to electrical installations.
SFS6002 is a Finnish standard how electrical work should be performed safely. It is based on European general standard EN 50110-1 (Operation of electrical installations – Part 1: General requirements) plus Finnish national additions to it.
If you want to get your hands on the original European EN 50110-1 standard, you need to buy it. There are also free information on standard available: British edition of the standard BS EN 50110-1:2004 can be found on-line.

956 Comments
Tomi Engdahl says:
Don’t run high current through a coiled extension cable. The cornering forces the electrons to the outside of the curve, where they rub on the inside of the copper, generating heat.
https://mastodon.ie/@clickhere/110815291486713824
Tomi Engdahl says:
https://aetechron.com/improper-system-grounding-exploring-the-dangers-of-ground-loops/
Tomi Engdahl says:
Electrical Safety: Systems and Devices
https://philschatz.com/physics-book/contents/m42416.html
Tomi Engdahl says:
Live ceiling problem
https://youtu.be/VFZhcgRgJk4?si=beqJndr07r49T4yv
Tomi Engdahl says:
TSAIA – Airfield Lighting Safety Program
https://www.youtube.com/watch?v=BdxM9WjOFXc&t=1024s
Tomi Engdahl says:
DOT&PF Troubleshooting of Airfield Lighting Systems
https://www.youtube.com/watch?v=PLGs_VaXPMo
How to troubleshoot and find common problems in series constant current airfield lighting circuits.