Maintenance must be based on inspection of electrical equipment as installed. Insulation, wiring, connections, and leads must be visually inspected for evidence of stress, damage, or deterioration. See NFPA 70B 4.2.2 and 15.3.1.
Maintenance must be done considering the current condition of maintenance and potential risks. Where manufacturer’s recommendations are insufficient, NFPA 70B supplies guidance. See NFPA 70B 4.2.3.
Electrical equipment must be kept contaminant-free. See NFPA 70B 15.3.2.2.
Safety equipment must be mechanically serviced and operation physically verified. For instance, a circuit breaker must be operable. See NFPA 70B 15.3.4.
Infrared testing, resistance tests, overcurrent trip tests, and other verifications of safe operation-as-intended must be done and documented. See NFPA 70B 15.3.5.
Local Roots and Proven Safety
Since 1919, we have served the Commonwealth with deep roots in Louisville and Lexington. As winners of the 2021 NECA Safety Excellence Award, our internal training centers for NFPA 70E and 70B ensure that every technician on your campus is a vetted, “Qualified Person” who understands the unique needs of Kentucky schools.
Comprehensive Compliance
We provide more than just a “fix.” Henderson delivers the end-to-end documentation, infrared testing, and detailed reporting required to satisfy insurance audits and state marshals. We manage the entire lifecycle of your Electrical Maintenance Program (EMP), replacing liability with a verifiable paper trail of safety.
While NFPA 70E focuses strictly on personnel safety and workplace practices to prevent electrical shock and arc flashes, NFPA 70B focuses on the equipment itself. NFPA 70B outlines the specific standards for inspecting, testing, and maintaining electrical, electronic, and fiber-optic equipment to prevent infrastructure failure and hazards.
Yes. As of its recent revisions, NFPA 70B has transitioned from a "Recommended Practice" to a binding Standard. This means that regular electrical preventive maintenance is no longer just a good suggestion—it is a mandatory requirement for facility compliance, insurance validation, and OSHA enforcement.
The standard mandates a regular, condition-based maintenance schedule. Most critical power distribution equipment—such as switchgear, circuit breakers, and transformers—requires routine energized inspections (like Infrared Thermography) at least once every 12 months, with certain high-risk components requiring more frequent testing based on their operating environment.
Failing to maintain equipment up to NFPA 70B standards can result in severe OSHA citations, the denial of insurance claims following an electrical fire, catastrophic equipment failure, and massive legal liability if an unmaintained component causes a workplace injury.
