What is in this article?:
Can you identify the Code violation(s) in this photo?
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Low voltage conductors are in contact with the 120 volt conductors they should be separated....
The 120v circuit should had been in a shielded seperator type duct or a panduit wiring duct w/a center shield seperator.
The PLFA should be saparated by 0.25" from power circuit. 760.136.D1
Manufacturers should be required to build their equipment so as to keep the circuits seperate.
This particular cabinet has knock-outs on the left side immediately adjacent to the termination and the manufacturer specifies that location as the entry point for the NPL power circuit. The PL FA circuits are then free to route through the top and right sides of the cabinet.
This one is an installation error with the installer not following the manufacturers documentation.
I understand code BUT my thought this isn't the installers site but the manufacture of the alarm
are of that is also down grading the wire manufacture
THHN against PVC is there and EMF, EMI between them
I know in 517 it talks about types of wires that have higher insulation and help with less leakage between them
but does it apply here. Yes if they had the 120 mixed in the same conduit as the 24 volt they would be breaking the code
Both Canadian and US codes require that there be separation between non-power limited and power limited circuits terminating in a common enclosure, such as this FACP. Some junction boxes will also have a mechanical barrier or partition between the two circuit types.
Isn't this installation OK since it's installed in a UL approved design from the manufacturer? I agree I would move the incoming power and tuck it out of the way.
I also see:
No bushing on the EMT connector for the supply circuit and a possible raceway fill problem with the Fire Alarm Cable assemblies through the pipe nipple.
FACP manufacturers should be required to have these barriers in their equipment. How do they get a UL approval without such barrier?
If the FACP is a UL (or other recognized listing lab) approved piece of equipment and the installation is per the FACP manufacturers instructions it is a legal installation. Are we going to start disassembling every listed device and trying to apply the NEC to appliances, TVs, computers.......
Canadian code says if all cables have same voltage rating in the panel it's okay to mix conductors
Different voltages mixed, No bushing on the fitting, Terminations are not properly cut to length for the terminals used, I do not see any bonding of the supply ground to that box either. Thats just from the little portion you can see in the picture...imagine the rest of this beauty!
Every fire alarm panel is done like this. I do not know a single electrical company that would separate the two derived conductors. The fire alarm conductors are rated for 300v.
Thanks for all of your comments!
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