Decoding NEC: Understanding ‘accessible (as applied to equipment)’ for Compliance and Safety

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In the National Electrical Code (NEC), “accessible (as applied to equipment)” is defined as equipment that is capable of being reached for operation, renewal, and inspection. 

Article 100. Accessible (as applied to equipment). Capable of being reached for operation, renewal, and inspection. 

This means that the equipment should be installed in such a way that it allows close approach without being guarded by locked doors, elevation, or other effective means, ensuring that it can be easily accessed for maintenance or repair.

What is the NEC Article Defining “accessible (as applied to equipment)”

The NEC Article that defines “accessible (as applied to equipment)” is Article 100.

It states that equipment is considered accessible if it is capable of being reached for operation, renewal, and inspection. This means that the equipment should be installed in a way that allows for easy access without being obstructed by locked doors, elevation, or other barriers.

Examples of “accessible (as applied to equipment)”

Here are some examples of “accessible (as applied to equipment)” according to the National Electrical Code (NEC):

  1. Overcurrent Protection: The operating handle of a circuit breaker must be accessible without opening a door or cover.
  2. Low-Voltage Suspended Ceiling Power Distribution Systems: A disconnecting means for the Class 2 supply to the power grid system must be located so as to be accessible and within sight of the Class 2 power source for servicing or maintenance.
  3. Switches and Circuit Breakers: Installed adjacent to motors, appliances, or other equipment that they supply, switches and circuit breakers are permitted to be located higher than 2.0 m (6 ft 7 in.) and to be accessible by portable means.
  4. Ballasts, Transformers, Electronic Power Supplies, and Class 2 Power Sources: These must be located where accessible and securely fastened in place.

These examples illustrate the NEC’s requirements for equipment to be easily reachable for operation, renewal, and inspection, ensuring safety and ease of maintenance.

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