Class 1, power limited secondary circuit

[travmc77]

Would a class 1, power limited circuit be required to follow the requirements set forth in 517.13 when in patient care areas and 517.30(C)3 for mechanical protection, if on emergency power.

 

[Smart $]

Would a class 1, power limited circuit be required to follow the requirements set forth in 517.13 when in patient care areas and 517.30(C)3 for mechanical protection, if on emergency power.

Not really my area, but I can find nothing which would exclude a Class 1 power-limited circuit.

 

[gadfly56]

Not really my area, but I can find nothing which would exclude a Class 1 power-limited circuit.

What are the characteristics of a Class 1 power limited circuit? I thought power limited were only Class 2 or Class 3.

 

[travmc77]

What are the characteristics of a Class 1 power limited circuit? I thought power limited were only Class 2 or Class 3.

Under 30 volts, no more than 600 watts.

 

[Smart $]

Under 30 volts, no more than 600 watts.

Ummm...

(A) Class 1 Power-Limited Circuits. These circuits shall
be supplied from a source that has a rated output of not
more than 30 volts and 1000 volt-amperes.

 

[travmc77]

Ummm...

Thanks for clarifying, I knew that, don't know why I typed it. So bottom line, a class 1 power limited circuit in patient care areas should be in conduit?

 

[Smart $]

Thanks for clarifying, I knew that, don't know why I typed it. So bottom line, a class 1 power limited circuit in patient care areas should be in conduit?

I gave you my assessment in post #2.