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When it comes to electrical safety, NFPA 70E is one of the most important standards that safety managers must understand. At DOMEX SAFETY, we specialize in producing high-quality arc flash coveralls, arc flash shirts, and arc flash pants that comply with global standards like NFPA 70E and EN 61482. This guide explains what NFPA 70E requires and how to choose the right arc flash protective clothing for your workforce.
NFPA 70E is the Standard for Electrical Safety in the Workplace, developed by the National Fire Protection Association. It sets requirements to protect workers from electrical hazards such as arc flash and arc blast. The standard provides guidelines on:
Performing arc flash risk assessments
Defining PPE categories (CAT 1–CAT 4)
Establishing safe work practices around energized equipment
Arc flash PPE under NFPA 70E is classified into four categories based on calorie rating (ATPV or EBT):
CAT 1: Minimum 4 cal/cm² protection (lightweight FR shirt and pants)
CAT 2: Minimum 8 cal/cm² protection (DOMEX SAFETY specializes in CAT 2 arc flash coveralls and clothing)
CAT 3: Minimum 25 cal/cm² protection (heavier layered PPE)
CAT 4: Minimum 40 cal/cm² protection (multiple layers, highest protection)
For most industrial environments, including power generation, utilities, and petrochemical sites, CAT 2 arc flash clothing is the standard choice for balancing protection and comfort.
When selecting PPE, safety managers must ensure:
ATPV rating meets or exceeds the calculated incident energy at the workplace.
Garments are certified according to NFPA 70E and tested to ASTM F1506.
Employees are trained on correct use, care, and maintenance of arc flash apparel.
At DOMEX SAFETY, we design and manufacture durable, comfortable, and certified arc flash clothing that meets NFPA 70E standards. Our CAT 2 coveralls, shirts, and pants (≥8 cal/cm² ATPV) are trusted by leading companies in the oil, gas, and utility sectors worldwide.
NFPA 70E provides the foundation for electrical safety programs. For safety managers, selecting compliant arc flash protective clothing is critical to worker protection. By partnering with DOMEX SAFETY, you ensure your workforce stays both safe and comfortable on the job.
