\u00a9 2023 wikiHow, Inc. All rights reserved. If the code requires both ends to be bonded (I don't know) then a bonding lock nut seems to be the only way to accomplish that. Installation of cable glands must be carried whilst following the appropriate codes of practice, local regulations and in accordance with manufacturer guidelines. (Regulation 411.3.1.1 refers). One important consideration when using armoured cable is how its earthed. I may change the cable anyway since I'm thinking of putting the family room receptacles on their own breaker and upgrading the wiring to 12 ga, 20A. used externally then armoured cable should definitely be used. wallyo | Apr 29, 2008 08:15pm | #9. Schedule any necessary "final" inspection. If your project is adding to existing wiring, make sure the power is off for all of the branch circuits feeding power to all of the box locations you're working on. If the metal box is along side the plastic CU or whatever, then the cores of the SWA can pass through the metal box that holds the gland, straight into the plastic one, without actually having extra joins in the metal box. Measure the length you need. If the manufacturer doesn't say it's approved for a particular wiring method, then it's not approved. No grounding requirements. For a better experience, please enable JavaScript in your browser before proceeding. Likewise if there is also a chance that it could get damaged by impact force e.g. chemically inert and therefore completely safe. Ensure the enclosure is fixed straight and level by using a spirit level.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'diydoctor_org_uk-leader-2','ezslot_15',810,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-leader-2-0'); The next task is to run the armoured cable from the location its going to connect into the consumer unit up to where the enclosure is. The National Electrical Code prohibits use of BX ( technically named Armored Cable/AC ) in wet locations. In the event I run into this situation Ill use a double inlet type mc connector so there is continuous metal contact. Below you will notice large diameter plastic conduit bringing power to an electrical sub panel. The armoured cable is the garage feed. Remember to bring an earth tail wire out to earth the box and the SWA armour though. With a hacksaw at 90 degrees to the armor spiral. I bored a hole in the side of the plastic box and connected the flexible metal cable via a fitting and lock nut. You are using an out of date browser. Washing machine hook up box above counter top??? When terminating or splicing at a junction, outlet or switch box, cut the cable so that 6 inches of free conductor is left for connections or splices. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Some types may work for several cables types, others may be prohibited. Interesting question regarding bonding. 2. Al hacer clic en 'Aceptar' confirmo que estoy de acuerdo con lo antes expuesto, como se describe con ms detalle en la Poltica de cookies de Houzz. Reduced labor and material costs. Screw on lid provides ease of installation. What You Need Materials Code-approved electrical box Cable clamps (for a metal box) Tools Voltmeter or non-contact circuit tester Wire Strippers Hammer Lineman's pliers I drilled a hole through the brick and ran flexible metal cable from the firebox through the brick and wall studs to a plastic junction box a few feet away (no drywall on the walls). . Using a drill and holesaw, drill out the knockout hole at the base of the enclosure and also any other areas that you intend to have cable entering and exiting.Drilling out knockout using a 19mm flat drill bit, Drilling out knockout using a 19mm flat drill bit. I suppose I could have used a metal box in the wall, but I had already installed a plastic one before we made the decision on the gas insert and it just seemed easier to bore a hole in the side and attach the (MC?) So a 'temporary' installation to sidestep Part P requirements. Push an Anti-short Bushing on the Wires Where They Contact the Metal Armor Here, you might have to employ bushings that contain an indicator tab, tailor tip. There may be a correct way to connect metallic to the plastic box but I believe you would need a bonding lock nut to bond the grounding wire to the cable armor. Manage Settings Wrap each side of the wire for about four to five turns as shown in figure 4. Article 518 of the National Electrical Code (NFPA 70, 2019: 514.A) requires all "assembly occupancies" to be wired using "metal raceways, flexible metal raceways, nonmetallic raceways encased in not less than 50 mm (2 in.) wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. "Flex" is flexible spiral conduit (aluminum or steel) that does not have wire in it already and comes in various sizes. Thought I had a bad GFCI but something else is going on - Help! For a better experience, please enable JavaScript in your browser before proceeding. Knockout Non-Metallic Push-In Connector (100-Pack) with 161 reviews and the with 138 reviews. Nonmetallic boxes shall be permitted. "Mike makes an excellent point about putting a hole in a box designed for NM cable. digging in the ground, pinching or crushing e.g. Most of the time single or 2 or possible 3 gang boxes are used. Permanent armored wiring would be type AC or type MC. Don't forget the armour must be earthed. Hint: Attach the cable clamp to the cable and thread the wires through the knockout hole. The very last job for our electrician now is to connect the other end of the armoured cable into the consumer unit on its own MCB. but I would use the gland and nut with a washer either side of the plastic for strength if the cable is earthed E electronicsuk Joined 7 May 2007 Messages 3,316 Reaction score 276 Location Lincolnshire Country 15 Apr 2009 #3 So drill a hole in floor, fished up armored cable from the basement, tacked it to the wall in a corner and powered the light this way. There are however others but these are generally reserved for more specialist industrial applications. Oh,it might pass. "I didn't think you could just drill a hole in a junction box. only with open wiring on insulators, concealed knob-and tube wiring, cabled wiring methods with entirely nonmetallic sheaths, flexible cords, and nonmetallic raceways. Place the cover onto the box front and tighten the screws. OK, good point. The double connector does penetrate the box. of concrete, Type MI, MC, or AC cable." In the majority of cases when installing armoured cable it is to run from a property outside to supply either a garage, shed or other outbuilding or to supply an exterior waterproof plug socket box. The plastic sheathing of NM cable does not shield electric fields. VAT 14.16 qty . Will check another. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Save my name, email, and website in this browser for the next time I comment. Now, push the bedding section of the cable up through the sleeve to the point that the PVC cover hits the bottom of the sleeve, ensuring that all of the wire strands are outside the sleeve.Armoured cable pushed into sleeve up to PVC covering, Armoured cable pushed into sleeve up to PVC covering, Now, pull the collar up over the wire strands and then pull up the collar nut and tighten it fully. An access hole was drilled through the wall of the outbuilding so that the cable could be pulled in and up to the location of the consumer unit.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'diydoctor_org_uk-large-mobile-banner-2','ezslot_14',811,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-large-mobile-banner-2-0');Armoured cable running into outbuilding. Hexus: please explain the difference between MC and Flex since they sound the same to me :-). Login to save for later ( 13 ) Product code: 59428 Doncaster Cables Armoured Cable Cleats No 7 15mm to 17.8mm 8.58. With the cable fully secured in place the next job is to run the armoured cable up through the threaded sleeve and into the enclosure. White wires are neutral, meaning they carry power back to the service panel. Select the supplier or trade you require, enter your location to begin your search. The same is the case for the other cores, if using other than standard then you need to indicate this through the use of tape or sheathing for the correct colour e.g. Unless it's approved as a permanent wiring method, you can't use it. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. 314.3 Nonmetallic Boxes. Sponsor I went and looked, it was the 1999 when boxes were section 370 and dashes were still used. The consent submitted will only be used for data processing originating from this website. I've been told by a CEU instructor that it is Code compliant to terminate MC cable in plastic JB's. Never saw a 14/3 metal clad "appliance cable." You can do that as long as you use the correct cable clamp to secure the cable to the box. A metal box can be grounded by AC or metallic conduit, but a plastic box needs a run ground conductor. Sure couldn't do it with a plastic box at both ends, the armor would not be bonded. 5 Repeat the process at the other end of the cable. The reason for using a weather proof enclosure was that the main electrical feed would be taken from the consumer unit to the weather proof enclosure via a 10mm cable and the connection between this and the armoured cable would then be made in the enclosure. Single pair shielded thermocouple extension cables shall be used between thermocouple head and junction boxes / transmitters / local control panel mounted instruments. The included wiring is black, white and green, solid 14 ga. For instance, PG16 thread for screwing in sensors and several other types of equipment, connectors, and junction boxes. Fit the shroud. Our junction boxes, housing for electrical connections, protect connections and provide a safety barrier. Definitely getting nick picky but I think the code does include this and I'm not sure how it is worded. the large hole of the earthing banjo is slipped over the gland before the retaining nut is screwed down. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. Grab your copy now for all the DIY help you need right at your finger tips! Is BX cable required in NY in a one-story church assembly area? Step 4. This tool uses a small cutting wheel powered by a hand crank and will cut only through the armor, leaving the wires undamaged every time. IMO IP66 Junction Box 125 x 167 x 82mm 16.99. Repeat the previous steps at the opposite end of your cable Put a BX connector on the end of the cut armor and then tighten the screw for you to secure the armor. 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