Answer :
Final answer:
The attachment plug cap for a 240-volt room air conditioner cannot be used as a disconnecting means according to the NEC, making the statement true. This regulation ensures safety and avoids potential electrical hazards. A dedicated disconnect switch is required to isolate the appliance from electrical supply safely.
Explanation:
Understanding Air Conditioner Disconnecting Means
The statement in question is true. According to the National Electrical Code (NEC), the attachment plug cap for a 240-volt room air conditioner in a residential occupancy is not allowed to serve as the disconnecting means for that air conditioner. This requirement is established to ensure safety and prevent potential hazards associated with improper disconnection of the appliance.
The primary reason behind this rule is that using the plug as a disconnecting means can lead to accidental disconnection under load, which may result in electrical arcing or shock. Instead, the NEC mandates the use of a properly installed disconnect switch that is specifically designed for this purpose. This ensures that the air conditioner can be safely and completely isolated from the electrical supply when necessary.
Key Points
- NEC regulations prohibit using the plug as a disconnecting means.
- Safety concerns about accidental disconnection while under load.
- A dedicated disconnect switch is required for safe operation.
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