Reducing Arc Flash Hazards
June 11, 2009 by Jeff
Filed under Arc Flash, Electrical Safety
When an Arc Flash Study, currently being referred to an Incident Energy Study, is completed owners and operators start to look for ways to minimize the workers exposure to high incident energies. One of the ways that this can be done is to ensure that all work is completed in a zero energy state.
This is [...]
What is Arc Flash?
June 10, 2009 by Jeff
Filed under Arc Flash, Definitions, Featured
An arcing fault, which is the cause of an arc flash is described below.
Arcing faults (an Arc Flash) are defined as high-impedance faults, since any fault current must travel through air, as opposed to the low-impedance path normally associated with a short circuit. A short circuit study of the electrical system is required to determine [...]
The primary causes of Arc Flash
June 7, 2009 by Jeff
Filed under Arc Flash, Electrical Safety, Featured
Potential causes of an Arc Flash or Arcing Fault may include:
Workers mistakenly dropping tools on live parts
Pests entering switchgear through openings
Faulty operation of a load break switch
Dust or moisture accumulating to weaken air insulated bus bars
Improper use of test equipment
From personal experience onsite and reading incident reports, the last three are the ones that are [...]