ECN Forum
Posted By: iwire Free Air THHN - 06/18/04 06:31 PM
I just came back from a work trip to NJ. We went to nine supermarkets and in each one I saw this same installation.

This controlled water flow to a sprinkler on the roof that would be activated by temperature to aid the cooling of the refrigeration condensers.

I did not have my camera with me when I saw the worst one with 24" of free air THHN.

[Linked Image]

[Linked Image]

Besides the obvious lack of protection for the conductors apparently the person installing these did not know plain gray 4" sq. switch covers are available, all the ones I saw where these oil burner covers.

Anyone think the plumber did the wiring? [Linked Image]
Posted By: sparked Re: Free Air THHN - 06/18/04 08:31 PM
Maybe the plumber/electrician/whoever wanted the red coloring and writing "EMERGENCY SWITCH" on the cover. Thats still not a good enough excuse, because you can get plates made up to say whatever you like, or make them yourself with a plain steel cover and a can of Krylon. Also, does anyone else think the "Sharpie" writing on the cover is kind of hard to read?
edited to add question about sharpie

[This message has been edited by sparked (edited 06-18-2004).]
Posted By: ThinkGood Re: Free Air THHN - 06/20/04 04:41 AM
He forgot the comma after the word "roof." It's just to tell you where the wires go.
Posted By: Big Ed Re: Free Air THHN - 07/07/04 11:11 AM
Isn't that the new "Invisi-duit"? It lets you inspect the wires while it protects!
Posted By: HotLine1 Re: Free Air THHN - 07/07/04 07:09 PM
Could the store be SR??? They are notorious for stuff like this. Usually the 'in-house' jack of all trades maintenance guys.

Had one a while ago, they used good old 16 ga orange ext cords, canibalized the female caps, and stuck THHN thru the holes in the male plug to splice onto a conv. outlet that was all busted up, on the roof.

Posted By: SolarPowered Re: Free Air THHN - 07/09/04 04:30 AM
I take it that's not power-limited low-voltage control wiring?
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