electricalethernetlow-voltagewiring
I'm running electrical conduit to metal knock out boxes throughout a new construction residential home. The knock out boxes are soley used for POE ethernet. Do the metal knock out boxes need grounded somehow? If so, what is the proper means of doing so?
Halex 3/8 in. 2-Piece Clamp Connectors
Product Description: Use the Halex 3/8 in. 2-Piece Clamp Connectors (5-Pack) to connect #14 - #10 non-metallic sheathed cable to steel
outlet boxes or other metal enclosures. They are compatible with standard 1/2 in. knockouts.
- Secure #14 - #10 non-metallic sheathed cable to steel outlet boxes or other metal enclosures
- Zinc-plated steel resists corrosion
- Fits standard 1/2 in. knockouts
- For indoor use only
- Designed for easy installation
- MFG Brand Name : Halex
- MFG Model # : 26510
- MFG Part # : 26510
Or as @Aaron suggested
Halex 3/8 in. Twin Screw Non-Metallic Cable Clamp Connectors
Product Description:
Twin Screw Non-Metallic Cable Clamp Connectors to join non-metallic sheathed cable and flexible cord to steel outlet boxes or other metal enclosures. A reversible locknut cuts through protective coatings on boxes and enclosures to preserve grounding.
- Connect non-metallic sheathed cable and flexible cord to steel outlet boxes or other metal enclosures
- Body and locknut are die-cast of high-strength zinc alloy
- Zinc-plated steel clamp and screws
- Reversible locknut cuts through protective coatings on boxes and enclosures to assure ground continuity
- Fits 1/2" knockout
- For indoor use only
- Screws compatible with Phillips, slotted and square screwdrivers
- Resists corrosion
- UL and CSA safety listings
- MFG Brand Name : Halex
- MFG Model # : 20511
- MFG Part # : 20511
Each of the 'conduits' as you say, have an uninsulated ground conductor. If there are three such 'conduits' then there has to be a splice joining them. Add your ground there.
I've installed many insteon devices before. The first thing I do, and my best advise, is to spread out all the wiring after removing he old switch and before installing the new, to know absolutely what you have to work with.
If you absolutely have to connect to a ground without cutting and splicing the original, I would recommend a split bolt.
It's going to look weird as hell in an outlet box, but if you thoroughly clean/abrade the existing ground so it makes good contact, a split bolt should do the trick
Best Answer
No, they do not need to be grounded.
If the box contained household voltages, then yes, it would need to be grounded.