CT, R&F, other Imaging Rooms

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rlwiley

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We have install multiple 1 1/2", 2", and 2 1/2" galvanized flex(greenfield) down into existing walls that are to be used by the equipment manufacture as chases for their equipment wiring.(that will be installed by their installers) The AHJ referenced article 517.13 and said that we are not allowed to use ANY galvanized flex in patient care areas. The main feed for the equipment is in emt all the way from MDP over to the disconnect in the room except for a 6' tail that goes from the disconnect over to the manufacturers PDU that is on rollers. This is a list of my questions:
1. Would a CT exam room be classified as a patient care area?
2. Would these chases be classified as branch circuits?
3. Is the AHJ correct in this statement?
4. If not what is the best way to plead my case?
Thanks in advance
 
Thanks for your replies. According to article 517.13(A) the AHJ is correct in his statement. The problem is that in my opinion we are not dealing with branch circuits. If you look up the definition of branch circuit and then the def. of outlet. Anything after the termination of the line voltage to the manufacture's equipment would be considered equipment wiring. If you go to 517.13B, the grounding terminals of all receptacles and all non-current carrying conductive surfaces of fixed electrical equipment likely to become energized (which is what we have) shall be connected to an insulated copper equipment ground. Conductor shall be sized per 250.122 and installed in metal raceways. If you go to 517.30C3(3)C&D, listed flexible metallic raceways are approved per our installation. The problem is this is referencing emergency systems.
Not trying to get one over on the inspector, just trying to learn for future installs.
BARBEER as far as your answer to question #4 if everyone knew the code what is the need in this forum. Sarcasm is not necessary.
 
Rlwiley
Remember the premise behind wiring in health care facilities.
The patients are generally in situations with medical equipment that puts them in much more jeopardy then normal situations.

Even the medical equipment suppliers are required to follow more strigent designs for their equipment.
It is possible that the chases may not need additional considerations. Sometimes we here at the site do not have enough information, or just cannot understand the actual installation from here.
If that is so, I would seek help closer to home.

I may be wrong, but I do not think Barbeer was trying to be wise...sometimes we just sound that way, as we are not writing experts either.
 
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