EHT is Extremely High Tension, HT is High Tension, LT is Low Tension..
You can substitute the word "volts" for "tension"
I was surprised to learn when I did my C&G Electrical Installations, that "low voltage" included normal domestic 240v mains, whereas 3 phase 512v supplies were thought of as "high voltage"
Mike
You can substitute the word "volts" for "tension"
I was surprised to learn when I did my C&G Electrical Installations, that "low voltage" included normal domestic 240v mains, whereas 3 phase 512v supplies were thought of as "high voltage"
Mike
