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Electrical work is among the most hazardous tasks in any industry. NFPA 70E sets the benchmark for protecting workers from electrical arc flash and shock hazards. Understanding this standard is critical for compliance, safety, and choosing the right PPE—such as arc flash coveralls, jackets, shirts, and pants—that meet real protection standards.
NFPA 70E, developed by the National Fire Protection Association, defines the safety requirements for electrical workplaces. It provides guidelines on:
Arc flash boundaries and safe approach distances
Personal Protective Equipment (PPE) categories
Hazard Risk Assessment Procedures
Training and labeling requirements
Its purpose is simple: reduce the risk of injury or death from arc flash incidents by enforcing systematic safety practices.
NFPA 70E classifies PPE into four categories (CAT 1–CAT 4) based on energy exposure (measured in cal/cm²).
CAT 1 (4 cal/cm²): Basic protection (e.g., FR shirt & pants)
CAT 2 (8 cal/cm²): Moderate protection (arc-rated coverall set)
CAT 3 (25 cal/cm²): High protection (multi-layer FR clothing)
CAT 4 (40 cal/cm²): Maximum protection for severe arc flash exposure
All garments must be tested according to ASTM F1506 and clearly labeled with their ATPV (Arc Thermal Performance Value).
To meet NFPA 70E requirements, every employer and worker should:
Conduct Arc Flash Risk Assessments regularly
Provide certified PPE with valid third-party test reports
Train employees on safe work practices and equipment us
Maintain PPE integrity — inspect, clean, and replace worn garments
Ensure labeling and documentation follow current NFPA 70E guidelines
Domex Safety provides PPE that fully complies with NFPA 70E, ASTM F1506, and EN 61482, ensuring both global and regional compliance for oil & gas, electrical, and utility sectors.
At Domex Safety, we specialize in certified arc flash and flame-resistant workwear built from high-performance fabrics. Our products combine:
Verified arc and flame resistance
Lightweight comfort for daily wear
Durability and wash resistance
Global standard compliance (NFPA 70E, ASTM F1506, EN ISO 11612)
When it comes to protecting your team, compliance isn’t just a requirement—it’s a responsibility.
NFPA 70E isn’t just a standard—it’s a life-saving guideline. Whether you manage a power plant, refinery, or maintenance crew, ensuring your workers wear compliant PPE is the foundation of a safe electrical workplace.
Domex Safety helps you meet that standard—every shift, every site.
