Arc flash (or arc blast), shock and electrocution cause over 600 deaths and over 35,000 reported injuries each year. Arc flashes typically occur when a short circuit occurs in electrical switchgear, often during maintenance work. The resulting "arc blast" is a bomb-like explosion that releases thousands of pounds of force, carrying with it molten shrapnel and a super-heated fireball.

In any situation where electrical distribution equipment is involved, the safety of the electrician, laborer or thermographer working on the equipment should be the primary concern. After that, the question on the minds of many is "What do we need to do to be compliant with NFPA 70E?"

The answer can involve a number of items, depending on the equipment and what is being done on a day-by-day basis. As NFPA 70E (the standard adopted by OSHA) becomes better defined, more companies and organizations are analyzing how they protect employees and contractors in situations where injury could occur. And how they comply with codes and standards.

In part, the current 70E Standard requires employers to:

• Perform a Flash Hazard Analysis to define Arc Flash Boundaries and document the incident energy levels of related equipment or consult the 130.7(C)(9) tables
• Provide workers with appropriate levels of PPE (personal protective equipment) - on a side note, Table 130.7 (C)(9)(a) is no longer being used for PPE. Coverage is being broadened under Table 130.7 (C)(9)
• Allow only qualified personnel to work on or near live parts
• Train workers on electrical safety and safe work-practices
• Use safety signs, symbols and accident prevention tags where required
• Provide tools for safe work

"The key is to understand NFPA 70E. If you know the law, you can comply. If you know the danger, you can avoid it," said Joe Cobb, director of training and quality control at Predictive Service. "It's important employees and contractors know the red flags and danger zones that can lead to injury and how to protect themselves. Safety should always come first."

Predictive Service technicians and sales representatives are thoroughly trained in NFPA 70 codes and standards to ensure full compliance. Predictive Service stays current on the latest NFPA developments as an NFPA member and can assist customers understand its codes.

Click here for a copy of the chart Predictive Service technicians use as a reference. Or, contact your Predictive Service sales representative with any questions or to find out more.