Rules for using a plug for machine power.
- Thread starter boater
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- Location
- Lockport, IL
- Occupation
- Semi-Retired Electrical Engineer
Re: Rules for using a plug for machine power.
The only thing that comes to my mind is the UL listing of the ?machine.? Does the manufacturer have it listed for a plug-in power? If not, the NEC Article 110.3(B) might come into play.
It might also make a difference if the "machine" were a motor, or were comprised of motors. What is it?
The only thing that comes to my mind is the UL listing of the ?machine.? Does the manufacturer have it listed for a plug-in power? If not, the NEC Article 110.3(B) might come into play.
It might also make a difference if the "machine" were a motor, or were comprised of motors. What is it?
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
Re: Rules for using a plug for machine power.
Charlie,
Most manufacturers do not list all of the specifics (i.e. raceway or cable type)of connecting their equipment to a power supply. They do normally only list requirements for the conductors (i.e. size and material) and entrance requirements.
So my question concerning 110.3(B) is "is the rule the implicit allowance of everything not explicitly denied"?
Charlie,
Most manufacturers do not list all of the specifics (i.e. raceway or cable type)of connecting their equipment to a power supply. They do normally only list requirements for the conductors (i.e. size and material) and entrance requirements.
So my question concerning 110.3(B) is "is the rule the implicit allowance of everything not explicitly denied"?
- Location
- Lockport, IL
- Occupation
- Semi-Retired Electrical Engineer
Re: Rules for using a plug for machine power.
I would not think it unusual for a manufacturer to declare that the product could be hard-wired or could be set up for plug & cord. That is why I offered the suggestion, and why I said that it was the only thing I could think of. If this path does not lead to a prohibition, then there probably is no prohibition.
I would not think it unusual for a manufacturer to declare that the product could be hard-wired or could be set up for plug & cord. That is why I offered the suggestion, and why I said that it was the only thing I could think of. If this path does not lead to a prohibition, then there probably is no prohibition.
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