Before working on a transformer, which safety standards must you follow?

The National Fire Protection Association (NFPA) 70E standard specifically addresses electrical safety in the workplace, focusing on protecting workers from electrical hazards associated with live conductors and the risks of arc flash and electrocution. When working on a transformer, which can present such hazards, adhering to NFPA 70E ensures that appropriate safety protocols are in place. This includes conducting risk assessments, implementing safe work practices, and wearing appropriate personal protective equipment (PPE) to minimize exposure to electrical risks.

While NFPA 70 provides the National Electrical Code, covering the safe installation of electrical wiring and equipment, and NFPA 75 relates to the protection of telecommunication facilities from fire, and NFPA 80 focuses on fire doors and windows, none of these standards directly address the specific safety measures required for working on energized electrical equipment like transformers. Thus, NFPA 70E is the most relevant standard for ensuring the safety of workers during such operations.