Sir:
I am a regular subscriber for this ECM for a long and really enjoy this mag. with my trade. I am working in Design/ Construction Division, and inspecting my projects. Those are mainly concern with residential wiring, service equipment, and dealing with utility company.
On my project, the contractor install all apts. branch wiring in the newly constructed open ceiling and wall. Also, there is and other systems involved like sewage pipe, sprinkler pipe, heating & plumbing pipe and gas pipe.
Now, as far as I seen the AC-90 armored cable installed for branch wiring and apts risers are all physically touching, overlapping, and intercepting other house system throughout the bldg. For my curiosity, I measure the potential between the live (110 V) and the sewage pipe (Cast Iron ). and the reading shows 50v. So does the other metal piping system gave me different reading. It is basically grounded the other system by physical contact of all BX-cable in the bldg.
Now, my question is....
Is it advisable to keep this method of wiring as a safer practice?
If in case of an accident, like the broken neutral or missing grounding system, it is proven to be a very dangerous and fatal, so how do I support my objection and comments against the GC Contractors?
I constantly address this issue and wanted to be corrected, but there is no supported documents like in the specification or the NYC Electrical Code Standard specifically this situation.
Is this condition is a code violation?
Appreciate your prompt detail reply at your earliest....
Raj Patel 12/14/02
Note: I did come across the article of a GFCI Receptacle made in China a couple of months ago. And those are the recalled for some technical reason. NEC advised in that article not to use them.
Some how I lost the article, and not even sure that those are all the GFI made in China including UL listed or not.
please, help on this note and appreciate if sending a details to me on my address or e-mail
address: Ranjit Patel
23 Stagg Street
Jersey City, NJ 07306
E-Mail: KetanR@aol.com
Thank You.
Raj Patel
