11
votes
What size wire in conduit before feeding 20A nm circuit?
(or is there something else I'm missing entirely)
You only need one ground wire per conduit (or metallic conduit and it is the ground.) That is sized for the largest ampacity circuit in the conduit, ...
- 214k
4
votes
Accepted
Connecting C-wire to 1989 Forced Air Electric Heater
I have colored the "C" wire cyan, also a link wire and an unused terminal
I suggest running a wire from the unused C terminal through to an unused space on the the barrier junction block. ...
- 20.8k
3
votes
Connecting C-wire to 1989 Forced Air Electric Heater
Look closer.
You have 24 Volt Transformer clearly labeled.
On one side of it there is the C-wire and 24 volt coming out
Two yellow wires. One goes to the R on the thermostat and other relays, the ...
- 17.3k
2
votes
Is there any code benefit to removing disconnected underground wire
Wires that are not connected to anything at either end are trash. If in your home or yard, you can remove them without repercussion. I know of no code that governs disconnected abandoned wires.
- 29.2k
2
votes
How many 100A/200A conductors can I run through a single conduit from my main service panel?
If that's 1-1/4" conduit, and XHHW or THWN2 insulation:
passes
passes
requires an upgrade to 2"
Put "conduit fill calculator" into a search engine to investigate any different ...
- 214k
2
votes
Connecting C-wire to 1989 Forced Air Electric Heater
I don't think that this has been clearly explained:
In most thermostats (and according to this wiring diagram), the R wire is hot and provides power to the thermostat.
The W wire goes through various ...
- 5,603
1
vote
How many 100A/200A conductors can I run through a single conduit from my main service panel?
Feeder capacity in the first place
Since this is a subpanel feeder, and not the entire service to a dwelling, you must NEC Table 310.16. The 90C column is off-limits except for adjustment factors, ...
1
vote
Raceway wiring in a bathroom next to sink
That's perfectly fine. In Chicago you generally need to use wires in conduit, but there are raceways that are legitimate conduit, so you should be fine.
However, you are still in "finish the ...
1
vote
I'm replacing an old 3-wire motion sensor with a new sensor that has 4 wires. How do I install this?
The blue wires can link another fixture to the motion detector.
1
vote
Can you identify/explain the wiring in my bathroom based on this diagram?
I think there's enough information to answer your question, though you'll have to verify a few things. You won't be able to do this using the existing wiring, for several reasons:
You can't have ...
- 3,774
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