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2
votes
1answer
112 views

How can I extend PVC Conduit already installed?

I recently bought a house with an exterior garage. The previous buyer only had an on/off panel installed on the outside with a single Romex running to one receptacle for the garage door opener. I'm ...
0
votes
1answer
51 views

Replacing Subpanel in Garage - Double Check

First, thanks to all for the wealth of info on here. Been a huge help. Fortunately or unfortunately, the information I found helping me install a transfer switch also turned me to the fact that my ...
0
votes
1answer
64 views

What gauge wire is needed to feed a 100A subpanel that's next to the main panel?

The subpanel will be just a few inches from the main panel. Looks like more or less 3 feet of cable will be used. How thick should the copper conductors be?
1
vote
1answer
54 views

Best way to transition from conduit through finished walls/ceilings to main panel for 100 amp subpanel

The conduit and outside wire has already been run, it's 1.5" sch40 pvc with 2-2-2-6 xhhw-2 wire running from the shop panel to inside the house (A). My plan was to splice it in a 12x12x6 junction ...
2
votes
2answers
138 views

What are benefits of a subpanel over pre configured 6 , 8 or 10 circuit Transfer Switch Kits? which one is better for Portable Generator?

I am planning for a Generator based power back up. Need to have the back up to run the sump pump in case the there is a power outage in Spring when the snow melts making water flow in my sump pit and ...
2
votes
2answers
108 views

Finishing an outbuilding that has an existing subpanel but I have some concerns after opening it up

Would anyone mind to validate/assuage my concerns as marked on the image here? Even after some research I'm hesitant on #1 (maths) and #2 (best practice vs. code requirements). And of course if ...
2
votes
0answers
94 views

Ground Rod in Raised Garden Bed

My detached garage has a subpanel fed by 3-wire plus ground from the main panel on the house. It's 8AWG copper conductors plus 10AWG ground breakered at 50 amps. In the distant future I may run new ...
0
votes
2answers
71 views

Ground wire in subpanel

I'm adding a circuit to a subpanel in my garage (built in the late 70s), and I've been reading a lot about subpanel ground / neutral bonding (how it's not supposed to be bonded at the subpanel, and ...
1
vote
1answer
84 views

Running cabin feeder off 200amp panel

I'm in the process of figuring out how to wire a park model cabin to my existing 200amp service. The crux right now is sizing my feeder wire appropriately. I currently have 2-2-2-4 MHF running to a ...
2
votes
1answer
61 views

Generator hookup

I am looking to install a portable generator for supplying some things when there is a power outage. I have my main panel outside and a sub panel inside. The breaker at the main panel suppling the sub ...
3
votes
3answers
1k views

Can I install two 60 amp EV chargers on a 100 amp subpanel?

I have 200amp service for the house and I'm looking to potentially add capacity for two EV chargers in the garage. I'm hoping to install two EV chargers that can charge up to 48 amps each. I know that ...
2
votes
1answer
101 views

Running electric to sub panel in detached garage, can I use a flexible conduit in my basement?

My understanding is that feeder wires need to be in conduit for the whole run, but running schedule 40 through my basement joists seems awful and maybe impossible. I’m wondering if I can use a more ...
2
votes
2answers
79 views

Splicing Feeders from Meter/main shutoff to multiple sub panels/outbuildings

Thanks to anyone who has the time to help me out. I will explain my situation and then ask follow up questions. I have property with a 600' driveway leading to a cabin (a small workshop). There will ...
6
votes
5answers
721 views

Risk of bonding neutrals and grounds in sub-panel

I am replacing my complete electrical service entrance (weatherhead, meter box, breaker panel in the house). The meter housing I have chosen is a meter/main combo that will have a 200 AMP breaker. So ...
0
votes
0answers
89 views

Can I run a 100amp breaker off a 100amp subpanel?

There is a 100amp sub panel from my house to our shed currently, buried in conduit. I'm going to build a new workshop between the house and this shed that I ideally want to have 100amps available too. ...
4
votes
2answers
832 views

Help me identify this wire running to a subpanel

I'm 90% sure there is a 100amp breaker running to my shed subpanel but it was a homeowner job so I want to verify everything is correct. The subpanel has no main breaker though but I can see these ...
0
votes
1answer
72 views

Connecting a detached building to 30 amp plug

I have a detached building that I want to move in the near future (after my house is done). Can I wire it to a 30 amp plug like an RV would do that way it is still mobile? More specifically is it ...
0
votes
3answers
141 views

I want to add a subpanel that is supplied by multiple hots

Overview: I have an existing woodshop space located in a rented commercial building that I share with other businesses. My shop is currently supplied by 2 subpanels (total 10 circuits) that are ...
0
votes
2answers
52 views

What size sub panel can I put if Im using #3 THHN wire for 160’ run?

I have a detached garage about 55’ from the back of my house and my main panel is in my basement. So Im planning to run about 160’ #3 THHN wire in conduit (About 90’ inside the basement and 70’ ...
2
votes
1answer
100 views

How do I break the ground/neutral bond in this sub panel?

The previous owner put in a sub panel. 6awg plus ground is feeding it with a 50 amp breaker at the main. It is in an attached garage. I’m going to fix what he did with the bonding. What is the metal ...
3
votes
3answers
204 views

Can a circuit connecting to an outlet be branched as a subpanel?

Can I have something like this, or does the cable run from the panel to the subpanel need to be dedicated? Main Panel+Breaker -> 40A dryer box with Outlet -> Subpanel+Breakers -> More ...
0
votes
3answers
73 views

Sub panel neutral and ground

Our building (built in 1960) has 5 sub panels everything being run in rigid or emt conduit. The neutrals are isolated. If I need to add some 15A receptacles can I add a ground bar to panel cabinet ...
5
votes
3answers
1k views

Can I add a second set of lugs to a 200A panel for a second sub-panel?

I have a 200amp service meter wired to a 200 amp outdoor breaker panel which has lugs feeding my 200amp breaker box in the house. I'm adding a garage 30 feet away. Can I put another set of lugs in the ...
1
vote
2answers
97 views

What size wire for a 200A panel in a shed?

I have put in a 200 amp panel in the shed and will run a mini-split A/C unit (25 amp draw), a computer, and a few LED lights. What size wire do I need to run from the house main panel to the shed. I ...
0
votes
5answers
204 views

100 amp hot tub panel, only need 50 amp

I've got a 100 amp subpanel that the previous owners used for a hot tub. The new hot tub we're getting only needs 50 amps. Can I reuse the existing wiring, breakers and subpanel for the new tub, or do ...
1
vote
1answer
166 views

Using 6/3 NM cable to feed 60 Amp to subpanel

EDIT: Nobody was willing to answer cable needed for 100 amp feeder so removed questions. Also, code references in the answer are several years or more out of date... Ed B was correct to be careful of ...
2
votes
1answer
203 views

Should the grounds and neutrals be isolated in this subpanel?

I have a main disconnect panel outside by my meter. I've got the two hot legs, a neutral and a ground wire from a ground rod below the meter coming into the panel. The neutral and ground wires are ...
3
votes
1answer
94 views

60A Subpanel with feeder wire spanning a finished section of the basement

I just recently had my GE 20 space main panel with 100Amp service replaced with a 40 space GE panel and 200Amp service. I am looking to install a 60 or 80Amp subpanel in the garage fed by this main ...
2
votes
1answer
407 views

Electrical plan review - detached garage subpanel

Going to run entirely new power to a detached 2-car garage. I have bolded concrete questions, but appreciate review/feedback on the entire plan. I will have this inspected by my city who uses NEC 2017 ...
1
vote
2answers
134 views

12/3 underground to garage multiple 14/2 wires to bare 12/3. No ground rod anywhere around 14 x54 detached garage

I've been in this house, built in 1941, for two years now. I've been working on replacing very old wiring in the basement for some uncomfortable issues I've found. But these issues pale in comparison ...
5
votes
3answers
721 views

Ground wire pass-through safety switch to sub panel?

I have an out-building 150+ feet from the main service panel with its own 240v 60 amp sub panel. It is powered via a four wire bundle going through underground conduit -- 2 x 120v feeders, 1 neutral, ...
1
vote
0answers
102 views

Adding a sub panel in my high tunnel greenhouse

ADDING A SUB-PANEL IN MY HIGH TUNNEL GREENHOUSE I need to add electricity to my new greenhouse that will be powering my exhaust fan and shutters, the automated roll-up sides, a couple of small water ...
2
votes
1answer
103 views

Dryer & Stove share breakers in 1972 apt

Question1: Why would one hot from the stove be wired into the dryer breaker and one hot from the dryer be wired into the stove breaker? Each has a separate neutral and both are grounded with their ...
1
vote
1answer
192 views

How to enter surface-mount main panel from back w/ a 1/0 Al SER cable?

I need to bring a 1/0-1/0-1/0-2 AL SE cable from a 2x4 wall into the back of the main service panel (it is a new subpanel feeder). The main service panel is surface-mounted on the outsde, on the ...
0
votes
1answer
162 views

What size wire for my 240 v 50 amp sub panel

I am running a 240 v 50 amp sub panel to my pole barn. It is about 125 feet to the barn. I an just running lights on 15 amp circuit and outlets and garage opener's on 20 amp. I figure i might need the ...
0
votes
2answers
175 views

What size wire for a 100A sub-panel at 275 feet?

I need to run power from my house out to my 35X70 workshop out back. What I have; a dedicated panel with 150 amp breaker on the side of my house that is currently only powering my well. My workshop is ...
0
votes
2answers
392 views

How do you properly use metal conduit as a ground?

I have read here that metal conduit can be used as the ground and you needn't then pull a separate ground wire: What are the NEC rules governing this? How do you avoid "weak ground" links ...
3
votes
3answers
612 views

Should I run RMC all the way from panel to sub-panel, or are there cheaper options?

I am running a 60 amp circuit to a shed about 100 feet from our main panel. I'll be running 3 #6 copper wires in a 3/4" rigid metal conduit down a trench with 6 inches of cover (hand dug, and I ...
1
vote
1answer
725 views

Adding a 110v circuit off 220v spa wiring

I have a hot tub installed with 4-wire 50 amp service, with the GFCI 2-pole breaker at the main panel, and a simple non-fused pull disconnect switch subpanel near the hot tub. I want to split off a ...
1
vote
3answers
274 views

What size subpanel and wire do I need for a swimming pool?

I need to install a 100A subpanel for an in ground swimming pool. The main panel is in the garage and subpanel will be mounted on exterior of house about 30’ away. The subpanel will be more than ...
9
votes
3answers
2k views

Are there safety concerns or code violations with my garage sub-panel?

I recently bought a home and the garage has this sub panel that looks questionable to me. The garage has a circuit for 240v, and two other circuits that consists of two 120v wall outlets, and two 120v ...
2
votes
1answer
93 views

Sub Panel feed to existing garage

I am wanting to upgrade a garage by putting in a larger 10 space sub panel with a 60 amp feed from the house. I plan to use a 4 wire assembly of #6 copper USE-2 conductors direct buried from house to ...
-2
votes
2answers
200 views

Add a 80/100 amp subpanel to 125 amp main, or upgrade service/panel?

I have a 125 amp main panel (configuration below) for my 1250 sq ft, 2 story townhouse, and want to update my kitchen outlets have dedicated circuits for fridge, dishwasher, garbage disposal and ...
0
votes
3answers
272 views

What's the current input from each leg of a portable generator into my main panel?

I am connecting a portable generator to my electric sub-panel in my garage. My generator is a 6kw running watt unit with a 30amp 220 volt output. I will be using this connection (L14-30) to a box ...
2
votes
1answer
238 views

What size wire and pipe for a 125A subpanel in an attached carport?

I realize this/these questions have been asked a million times before on this forum, but I appreciate any help that will help me drill down on exactly what materials I need and what I need to do. ...
1
vote
1answer
140 views

Max amperage for “neutral tie strap” in daisy chained Siemens panel

200 amp service. We have a service disconnect upstream of our main panel, which effectively means our neutrals and grounds are still isolated in our main panel (as one does when setting up a sub panel)...
0
votes
0answers
52 views

Prep for installing sub panel in attached garage

I recently built a three car garage attached to the side of my house with a slab on grade foundation. It replaced an earlier single car garage built in the 1920s that was detached and about 15' from ...
0
votes
0answers
31 views

240V on all 120v outlets and ceilings lights [duplicate]

In a remote studio have a Sub-Pannel with Multimeter readings. With No Circuit Breakers In Place (L1 to N 120v) (L2 to N 120v) (L1 to G 120v) (L2 to G 120v) (L1 to L2 240v) (N to G 0v) slim type ...
0
votes
1answer
65 views

Turning on GFCI breaker on subpanel trips main breaker

I have a subpanel feeding off a 50 amp breaker. The subpanel contains a GFCI 50 amp breaker which is connected to a new 32amp spa heater. When I flip the GFCI breaker on for the heater, it immediately ...
3
votes
1answer
386 views

Sub panel feeder circuit wire sizing

I’m planning to upgrade the service in a detached garage, which is currently fed by a single 15amp circuit, and I wanted to confirm that I have my circuit sizing correct. The existing circuit runs ...

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