Back in 2002 as a young sales person I got a chance to go out and learn firsthand what a consultant and seasoned elevator people think about someone who runs high voltage right by low voltage wiring. We were having intermittent issues at a building on Ohio in the City and they bought in a consultant who brought an Otis legend to the building and the first thing they pointed at was the high voltage wires going right by low voltage wires. Most of us newer to the business will probably not get as straight of a talk that we got onsite because we are a kinder gentler industry 20+ years later. This is a reminder to those who know and maybe some who do not know pick up a thing or two.
Since we have more non elevator devices in our controller this is very topical for our A17.1 2019 VAM devices.
Here are a few rules the NEC recommends installers to follow:
-
Unshielded
low voltage wire running parallel to standard high voltage wiring (120V and
240V) must be separated by at least 8 inches.
-
Shielded
low voltage wire may run parallel with the same high voltage wiring within 8
inches, but no closer than 2 inches.
-
You
may run low voltage wire over AC wiring at 90 degrees as long as they don't
physically touch.
-
Do
NOT run low voltage wiring through the same holes as high voltage lines.
If you have any questions or would like additional information feel free to contact me at CraigZ@colleyelevator.com or 630-766-7230 ext. 107.
Also check us out on Instagram @Colleyelevator see what we have been up to.
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