Garage door opener wire hazzard?

grandmumOctober 15, 2011

I have a garage attached to my neighbors. At one point there was a garage door opener wire (red yellow blue green in one cover) that passed through the cinder block wall between the garages. It now dangles on my side, cut and not attached to anything.

Im concerned that this might be a hazzard?

I had my son look at it and he said not to worry, he put this pen he has that detect current, it didnt go off. He then sprayed some expanding foam to seal the gap in the cinderblock.

Should I be concerned with this?

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Ron Natalie

I suspect this was for a switch to operate the door opener. Those are low voltage circuits and even if it were still life you'd have little to worry about with it.

    Bookmark   October 16, 2011 at 7:54AM
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brickeyee

Low voltage power limited control circuits are not a hazard.

It is the same class as thermostat wiring and requires little protection since it is not capable of starting a fire.

    Bookmark   October 16, 2011 at 10:20AM
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grandmum

My son said there is no way this 4 colored wire could carry in his words "house current 120 volts".... is that right?

And yes ronnatalie was right, it was once connected to a switch to operate the door on both sides. It was disconnected about 3 years ago and has been left dangling on my side. I havent confirmed if its connected still on the otherside.

If it was still live, how much voltage would be running thru it? Would it be AC or DC? And how would one test it with a multimeter?

My son said he didnt bother bringing his "multimeter" to test.

    Bookmark   October 16, 2011 at 1:38PM
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brickeyee

Around 24 VAC and only 1-2 V-A.

That is why control wiring does not require junction boxes for splices.

    Bookmark   October 16, 2011 at 2:15PM
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