There are really only two types of electrical hazards: shock and arc flash. CSA Z462 gives a short definition for arc flash: Arc flash hazard – a dangerous condition associated with the possible release of energy caused by an electrical arc. Arc flash takes two forms: Arc blast refers to the pressure wave created during […]
Arc Fault
Arc Flash Mitigation Techniques – Substitution
If you can’t eliminate an arc flash hazard, the next best arc flash mitigation technique is substitution. Unfortunately there are not a lot of ways to perform substitution to mitigate arc flash: electrical energy cannot simply be replaced by some other form of energy to provide power to equipment. Substitution of Electrical Equipment You can, however, […]
Protection Coordination Study
In power system studies – the critical four I said: The purpose of the protection coordination study is to verify that the various protection devices in your system, relays, breakers, fuses, etc. are coordinated correctly and are sized appropriately for the equipment that they are protecting. which is very true. To expand on that, a protection […]