wiring method for dental office patient care

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It would have to be HFC, AC by itself will not satisfy 517.13.

Roger
 
Interesting. On my exam it asked what wiring method was permitted for dental patient care and listed, AC Cable, EMT, MC, FMC, UF. I assumed AC cable because of redundant ground. But I didn't realize that it should be listed AC-HCF. What other method would you consider for this question then?

Thanks for your help!
 
Seemingly a very poor question. Under the right conditions {length, number of conductors, location (above ceiling?)} any of the methods listed other than UF might be acceptable.
As noted, AC only if it's HCF, MC only if it M-Cap, EMT only if it has an grounding conductor, FMC only under certain limitations....
 
lfobbe2 said:
Interesting. On my exam it asked what wiring method was permitted for dental patient care and listed, AC Cable, EMT, MC, FMC, UF. I assumed AC cable because of redundant ground. But I didn't realize that it should be listed AC-HCF. What other method would you consider for this question then?

Thanks for your help!
Click to expand...

augie47 said:
Seemingly a very poor question. Under the right conditions {length, number of conductors, location (above ceiling?)} any of the methods listed other than UF might be acceptable.
As noted, AC only if it's HCF, MC only if it M-Cap, EMT only if it has an grounding conductor, FMC only under certain limitations....
Click to expand...

As Gus states, there are two possible answers, EMT and FMC if it meets the requirements in 250.118.

AC cable on it's own does not meet the requirement because it does not have an insulated wire EGC, so there is not a redundant EGC in that method.

Roger
 
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