Proper Wear of Arc Flash Clothing

Arc Flash Clothing Wearing Guidelines in Power Operation and Maintenance

Build a Strong Safety Barrier by Wearing Properly

In power operation and maintenance, arc flash hazards are ever-present. Wearing arc-rated protective clothing (Arc Flash PPE) properly is not only a fundamental safety requirement but also a critical step in protecting lives. To ensure personnel are fully protected during high-voltage short circuits or arc explosions, the following guidelines outline the correct practices for wearing arc flash clothing in power maintenance scenarios:

Pre-wear Inspection: Ensure Equipment Is Intact

• Check the fabric for integrity: no tears, burns, or severe discoloration.

• Verify the arc rating label: make sure the clothing meets the required protection level (e.g., 8 cal/cm², 25 cal/cm², or higher).

• Clean and dry: arc flash clothing must be dry, as moisture can reduce insulation effectiveness.

Wearing Requirements: Correct Usage Is Crucial

• Full body coverage: the clothing should cover the torso, arms, and legs completely, with no exposed skin.

• Flame-resistant base layer: wearing FR undergarments is recommended to enhance overall protection.

• Fully fastened: ensure zippers and velcro closures are securely closed to prevent arc intrusion.

• No rolled sleeves or pant legs: rolling them up exposes skin and increases burn risk.

Supporting Equipment: Integrated Protection Enhances Safety

• Arc-rated hood or face shield: protects face and eyes from heat and flying debris.

• Flame-resistant insulated gloves: wear compliant insulating gloves with arc-rated outer layers.

• Arc-rated safety boots: use boots that offer insulation, flame resistance, and puncture protection.

• Hearing protection: use as needed to mitigate noise from arc blasts.

Training and Standardized Management

• Conduct regular training on proper wearing and use of arc flash clothing.

• Establish daily inspection and supervision mechanisms to prevent improper wearing.

• Non-compliance should result in reminders, corrections, or suspension from work.

Applicable Standards (for reference)

• GB/T 1335 / GB 8965.1: Flame-resistant clothing technical standards

• NFPA 70E: Electrical safety standard from the United States

• ASTM F1506 / F2621: Performance testing and evaluation standards for arc flash clothing

• DL/T 320-2019: Chinese standard for personal arc flash protective equipment

Conclusion

Arc flash clothing is not ordinary workwear — it is a vital barrier in high-risk operations. Proper wearing and scientific usage are responsibilities every power maintenance worker must uphold. Standardized protection ensures safe returns from every operation.

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