Arc Flash Hazard Analysis & Labeling
The Exposure Of Employees To Energized Parts Places A Requirement On The Employer To Provide Personal Protective Equipment (PPE).
COMPLY WITH NFPA 70E & OSHA
As of 2002, The National Electric Code (NEC) requires “electrical equipment, such as switchboards, panel boards, industrial control panels, meter socket enclosures and motor control centers, that are in other than dwelling occupancies and are likely to require examination, adjustment, servicing or maintenance while energized [to be] field marked to warn qualified persons of potential electric arc flash hazards.” NFPA 70E-2004 article 130.3 states; “A flash hazard analysis shall be done in order to protect personnel from the possibility of being injured by an arc flash.”
ARC FLASH HAZARD ANALYSIS - ARC FLASH STUDY
PowerCom can provide suggestions on reducing Arc Flash energy to safer levels and can also indicate improperly maintained and installed equipment. A benefit of decreasing the Arc Flash energy is lowering the level of PPE required for personnel. Along with identifying the hazardous areas, the study involves properly posting safety signs, applying safety labels and clearly marking safety boundaries on the floor. These labels are used to inform personnel of the correct PPE that should be worn.
The adjustment of circuit breaker trip settings can decrease the amount of Arc Flash energy that is the result of a fault. Care must be taken when implementing this solution, as protective device coordination may be affected when reducing the trip time of protective devices. This is why along with an Arc Flash Hazard Analysis, both a selective coordination and short circuit study must also be performed.