metal junction box ground wire I have a metal junction box with a main feed. If the ground wires touch the metal box the breaker pops and the ground wires spark. The main feed comes out of a ceiling light fixture box. The ceiling box is two wire BX. I'm using NM to feed the junction box. I grounded the NM to the light fixture mounting stud. Poor ground? Wires touching? 35"X12"X12" Truck Tool Box Black Heavy Duty Steel Metal Trailer Tongue Box Pick Up Storage Organizer w/Lock & Keys
0 · wire for ground box
1 · no ground wire for metal box
2 · metal outlet box grounding wire
3 · metal junction boxes grounding
4 · metal junction box grounding instructions
5 · grounding wire for metal box
6 · grounding box wire connection
7 · do junction boxes ground
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Pay close attention - if the ears "bottom out" on the metal of the box, you do not need that ground wire. If they bottom-out against drywall, you need a ground. Unrelated, one more tip on the device-mounting screws. In this video I will show you how to correctly bond a metal 4 square box. I want to be clear that you need to use a separate ground screw and a wire that i. You don't need a wire to ground the switch, the mounting screws satisfy the requirement when used with metal boxes, and there is an exception . I have a metal junction box with a main feed. If the ground wires touch the metal box the breaker pops and the ground wires spark. The main feed comes out of a ceiling light fixture box. The ceiling box is two wire BX. I'm using NM to feed the junction box. I grounded the NM to the light fixture mounting stud. Poor ground? Wires touching?
Say I have a #6/3 cable being spliced in a metal junction box. How would the (presumably stranded #8) ground wire be connected to the box? . How would the (presumably stranded #8) ground wire be connected to the box? electrical; wiring; junction-box; Share. Improve this question. Follow edited Mar 1, 2019 at 19:07. isherwood. asked Mar 1 . I have looked into purchasing a grounding pigtail and read that any grounding wire I purchase to help connect the metal box to the wiring and outlet needs to be 10 awg as this gauge is good as a grounding wire up to 60 amps. Because the 6-3 is good for 55 amps the 10 ash as a grounding wire is what I need. If I am wrong about this please let me .
Note that if you do run a ground wire, you are required to tie that to the metal junction box, not the receptacle. You do not wire this like plastic boxes. However once the metal box is grounded, the recep can pick up ground via the yoke (or mounting screws if it is self-grounding). The back of every metal box has a hole tapped #10-32 for a . There is no need to run a wire from the box to the receptacle ground terminal as the self grounding feature makes that connection. Recently saw a YouTube video by a individual who claimed to be a licensed electrician who ran the cable ground wire to the receptacle ground terminal and relied on the self grounding feature to ground the box .
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Electrical - AC & DC - Quicky - ground screw in metal junction box - Quick (stupid) question: I have (2) 12/2 NM-B wires going into a large metal junction box in my basement where they will be connected to (2) 12/2 NM-B wires going to the SEP (each gets 20A breaker). Basically the JB is just to extend the wires (did I'm moving a clothes dryer about 7 feet. The existing Cable is 8-3 (red, black & white) with no ground wire. I wanted to use a metal junction box but I need to ground it. The dryer is grounded by using a jumper wire from the chassis to the neutral. Any reason I can't use that same method to ground the metal junction box? Thanks Q: Am I required to use a grounding screw when working with metal electrical boxes?And what about grounding when using plastic boxes? A: David Herres, a licensed electrician in Clarkesville, N.H., responds: Using a metal grounding screw is a convenient—and arguably the most reliable—method of grounding a metal wall box or light-fixture enclosure, . Contructed using the drawn method, the metal box and cover are ideal for exposed work applications. COMBINATION PACK: This listing includes a 4x4'' metal electrical junction box, a raised 2-gang duplex receptacle cover, two duplex receptacle electrical outlets, and a copper grounding screw and wire.
For other metal boxes with copper wire, I've seen a pigtail used to connect the ground wire to a ground screw on the box. I would do this, but this box lacks a ground screw and lacks a threaded hole for a ground screw. . Properly grounding junction box for conduit transition. 3. So is my 1950s/60s era 2-prong outlet junction box grounded or .There a pinch bracket held by 1 or two screws, there may be a ground wire wrapped around one of those screws. If no wire can be found look further in the while and follow the cable inside the wall. They may have wrapped it around a nail attaching the J box to the stud or a bonding point on the exterior of the J box but still inside of the wall.From there, you can then run a separate ground wire (green #12 THHN or bare #12 copper works, provided it's not subject to physical damage) back to a suitable grounding point (i.e. another suitably sized equipment grounding wire, the wire that connects the panel to the grounding electrode system, or back to the panel, but not to a water pipe . The box has a GFCI outlet. I then go a few feet horizontally to another junction box with a duplex outlet; repeating to the next box and the next. I have my ground wire from the breaker box, connected to the ground screw on my junction box. This is also pig-tailed to the GFCI outlet, and then to another ground wire which leads to the next box.
The various junction boxes (and outlet boxes), if metal, are supposed to all be grounded to the breaker panel either by (metal) conduits carrying the various wires or by a ground wire inside each multi-wire cable.
The connecting to a metal box is fine, if the house ground wire is also connected to the box, if you can verify that, then go for it. If you can't, make sure the switch ground is connected to a ground wire within the box. Some boxes are plastic .
I have read several articles that say its acceptable to use the screw that comes with the metal box for grounding. The two silver ones usually used to attach a fixture. As long as that screw is only used for that purpose and none other. Now the NEC says you must use a green hexagonal screw as the grounding screw for the metal box. If there truly is no 10-32 tapped hole in the box, then I'd remove the grounding wires from the box mounting screws, nut them to a pair of 12AWG bare pigtails, and land one pigtail on the GFCI's grounding screw and the other on .The metal sheathing on BX cable can be used if properly bonded to a metal box, as the ground for that device, as long as the other end is grounded at the panel (properly). . Older wiring sometimes doesn’t contains ground wire. Rather, the junction box is fed with shielded cable that serves as a ground. You should ground the light to the . The old receptacles being replaced are enclosed inside metal junction boxes with copper ground wire attached via screw at the back of each box. Due to the fact that the metal junction boxes are grounded, and since I will be using the original wiring to make connections, will this have any impact, either negative or positive, when I replace the .
This was an existing ungrounded metal junction box where the back of the box was flush with a 2x4 and it didn't have the raised section for grounding that newer boxes have. This clip worked perfectly to ground the box making it much safer. . grounding wire. grounding pigtail. g clip. Related Products. Winged Wire Connectors, Green (15-Pack)
Rigid metal conduit (RMC) or intermediate metal conduit (IMC) containing communications entrance wire or cable shall be connected by a bonding conductor or grounding electrode conductor to a grounding electrode in accordance with 800.100(B). Should I use a grounding wire connector nut in each junction box to ground the outlet and the junction box & have one run outside of the junction box for the metal enclosure? I don't see a need to. One box will have two Romex cables and the other box will have one. If there's a proper 4-wire feed (or 3 wires and metallic conduit) the neutral at the garage should be isolated (visibly insulated from the breaker box) and the box itself should be grounded, either to a grounding wire or to conduit (and also to local grounding rods, or concrete encased electrodes.)
Connecting a smart switch ground wire to a metal junction box. Ask Question Asked 9 months ago. Modified 9 months ago. Viewed 403 times 0 I try to connect a smart switch with an integral ground wire. . On metal boxes, ground wires go to the box first. Switches with a metal yoke (thing the screws go through) automagically pick up ground from .
The photo shows 2 ground wires under the screw so the box is grounded, many light fixtures have a metal strap that when connected to the metal box is the ground path. The green screw on the strap is used to ground the fixture. To make a proper ground the ground in the cable with the hot should go under the screw if long enough. Specifications: Material: galvanized steel Color: as the picture shown Size: Junction box: about 4 x 4 inches Ground wire: about 7.87 inches/ 20 cm in length Package includes: 4 x Junction box 4 x Duplex outlet cover 4 x Ground wire 16 x Screws Notes: Manual measurement, please allow slight errors on size.
You can drill and tap more #10-32 ground screw holes into the junction box, if you really want to. That is the conventional size. You can use any thread pitch -32 or finer, and any bolt size #8 or larger. You cannot use sheet metal screws as their pitch is too coarse. Also, you cannot use mounting screws to pinch the ground wire between screw .
wire for ground box
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metal junction box ground wire|metal outlet box grounding wire