 | |
| AVOID INSTANT DEATH |
My first 24 hours in the UK with Ads and Babs from MR UK and already learning (some essential things):
- 50 volts is the threshold for electrocuting yourself - it is the point your skin can become a conductor of electrical current. This is dry skin. The threshold is much lower for wet skin Read more about Electric Shock.
- 240V AC is then way above this and very dangerous. DC is safer to work with than AC. Houses aren't fitted with DC as the cabling would need to be enormous cables (*for some reason*) to carry the power. AC is compact but a little bit angry.
- The third prong on an appliance's electric plug is the 'earth'. The "earth" is put on appliances that contact any type of conductive material that could go live, such as metal. It the appliance is only made of things like plastic and runner, then it is most likely to have two prongs (+ & -).
- When looking at cables, predominately the DC cables are red (+) and black (-). Whilst in the AC arena, the cable colour codes are brown (+), blue (-) and green&yellow (earth). There are exceptions of course, however it seems to me that the positive is represented by colors that are warm - browns, reds, oranges.
No comments:
Post a Comment