\u00a9 2023 wikiHow, Inc. All rights reserved. Measure the length you need. Looking at the fitting in your picture I guess it is approved for use with MC (going off of what the package says). The banjo is then positioned so that the small end with the small hole is situated in a place that a hole can then be drilled through your enclosure away from any other items. Dont push too hard you just want to cut through the cover.Armoured cable PVC cover trimmed up. If the BX doesn't include a separate ground wire then you'd need a special box connector that provides a ground lug. "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?) If you go to the trouble of making the correct size hole in the box and using an approved clamp you can use other methods, but you still have to watch for the grounding conductor. Thanks! Cut off the paper cover and discard it. The main difference between the AC wire and the MC wire is that the metal-clad cable has a standard ground wire, whereas the AC cable relies on a jacket in combination with a wire or thin strip to secure the grounding. Apply firm pressure to the handle, but don't squeeze too hard or the crank will be difficult to turn. Oh,it might pass. Light fixtures can be supported by metal junction boxes; plastic junction boxes will break under the weight. Electrical caulk for MC PVC cable connectors. To prevent issues such as these occurring special joints known as glands must be used. When our new furnace was recently installed the electrician ran cable that looks exactly like in this picture, however where it mated to the metal box it used a cylindrical fitting that appears to screw-on over the outside of the cable since I don't see any other obvious attachment mechanism. For a better experience, please enable JavaScript in your browser before proceeding. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. 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. Attach conduit and armored cable to a knockout in an outlet box or enclosure. Pull everything back down the cable to leave a good 6 8 inches of cable free.Remaining glad parts slipped on to armoured cable, Remaining glad parts slipped on to armoured cable, Using a utility knife, cut down the centre of the PVC cover at about 6 8 inches from the end and then also cut around it and pull the cover off. Once in place the 10mm cable was then connected up to the MCB and run out to the enclosure and then connected to the SWA cable. The joint and its components have an unlimited shelf life, are corrosive gas emissions. The double connector does penetrate the box. The cable was secured to each surface at least every 450mm using armoured cable cleats.Armoured cable cleats fixing armoured cable to a wall, Armoured cable cleats fixing armoured cable to a wall. The short aluminum "wire" is the bonding strap and can be cut off. I'm replacing the dishwasher in a 1960s house I just bought, and I don't really trust the electrical in this house. Since this run of MC is only 6 ft long bonding should be a non-issue, but it really depends what the code says for legality. Screw on lid provides ease of installation. used externally then armoured cable should definitely be used. When connecting armored cable to the junction box, you may be tempted to simply hand tighten the lock nut on the threaded portion of the armored cable connector. brown for live, blue for neutral etc. Step 4. Some types may work for several cables types, others may be prohibited. Note: Installing SWA armoured cable is Part P notifiable work and not something that can be done on a DIY basis and should only be done by a qualified electrician with the necessary experience to fully test the install once complete! Supply wiring for outdoor socket Installing an Outdoor Socket 3. As far as the plastic or metal box goes, I don't see any functional difference between them for this application. Let us help you find a tradesman local to you. If the armour is the only earth you're providing then I would use a Piranha earth nut as opposed to a banjo/metal tag through the enclosure. Fit the shroud. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. I guess I'll just use a metal j-box that accepts NM wiring and also MC, then string a length of MC into the firebox. An example of data being processed may be a unique identifier stored in a cookie. 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.) All tip submissions are carefully reviewed before being published. With the screw in place a length of earth wire is cut and a crimp ring is crimped on and then its slipped over the bolt and then a nut is screwed down and tightened. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. 3 Step 1 - Assemble the gland parts on the wire 4 Step 2 - Stripping the outer insulation and cutting the amour 4.1 Stripping just the outer 4.2 Cutting the armour 5 Step 3 - Stripping the bedding or inner insulation 6 Step 4 - fitting the gland cone section 7 Step 5 - sealing the back of the gland 8 Step 6 - Connecting to your box If youre only doing 1 cable, you can take your time with it. Cutting a hole in the plastic box may be amaturish but I "am" an amateur :-) That said, I don't want any problem when it gets inspected so I may change to a metal box. Make sure you have the proper connectors for the selected type of cable. When it comes to the core wire colours these are generally as follows (depending on the number of cores): To cover the potential range of different installs armoured cable is also available in a range of different size cores that include 1.5mm, 2.5mm, 4mm, 6mm, 10mm, 16mm and more specialist 25mm. I am far more concerned that a run ground conductor is going to be required to use any metallic method so ground can be picked up, and that an approved cable be used. It is manufactured from impact, corrosion and UV resistant glass reinforced polyester compound, and this provides 1,2,3 or 4 way versatility. Thanks. MP-AP uses the armor for an EGC. This may seem like a lot but then if you consider the potential for damage that could occur from any number of install situations and from the elements and the potential injuries that could result if the cable is compromised in any way then the number of layers is about right. In this case it will be fixed inside a porch area. 3. Will check another. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. How would you freshen up this exterior on a $10,000 budget! When it comes to surface mounting armoured cable it should be clipped up securely to a sturdy solid surface using the correct cable cleats. Don't fancy doing this project yourself? 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. A while back I asked about using a plastic box with MC and your response was that you hadn't seen a plastic box approved for metallic clad cable. I went and looked, it was the 1999 when boxes were section 370 and dashes were still used. This article has been viewed 79,772 times. heavy weights being rolled over or pushed into the cable it needs to be able to resist these forces and a standard domestic grey electrical cable would simply not be up to the job and if it became damaged would pose a huge risk and potential for injury. Neutral Wire's Plastic Insulation Turned Brown. Add any required cable supports (e.g., staples, clamps, brackets). if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'diydoctor_org_uk-medrectangle-4','ezslot_4',691,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-medrectangle-4-0');To these ends the regulations state that in these situations special cable known as armoured or SWA (steel wire armoured) cable must be used as its both resistant to the elements and its protective steel casing ensures resistance to any impact damage. Never saw a 14/3 metal clad "appliance cable." Include your email address to get a message when this question is answered. It is safer and faster than using a hacksaw. I have located all the items at Screwfix. But, still, it screams "AMATEUR". If you use a metal box extension on a plastic box, connect the metal extension to the ground wire in the box using a grounding clip and a short piece of wire. Where an armoured cable is selected as (or forms part of) a wiring system, BS 7671 requires the armouring be effectively earthed. IMO IP66 Junction Box 125 x 167 x 82mm 16.99. "Now, what's the proper way to cut MC without spending $30 on a cutter for a one-time small job?". (Then again, it might flunk as not being "workmanlike".) Best LED dimmers for 3-way with buzzing problems? var cid='3350712846';var pid='ca-pub-4631420095579283';var slotId='div-gpt-ad-diydoctor_org_uk-box-3-0';var ffid=1;var alS=1002%1000;var container=document.getElementById(slotId);container.style.width='100%';var ins=document.createElement('ins');ins.id=slotId+'-asloaded';ins.className='adsbygoogle ezasloaded';ins.dataset.adClient=pid;ins.dataset.adChannel=cid;if(ffid==2){ins.dataset.fullWidthResponsive='true';} The outer steel wire should also be connected to earth via the glands fitted at each end. Seems like it would be a straight shot to me but maybe I'm not seeing something. Threaded sleeve secured on base of waterproof enclosure. Thanks. I actually don't remember which edition of the NEC this was clarified. all the time. Splicing onto the existing cable and extending it to a different location is fine, just make sure to splice all the wires together color to color including the ground wire. MC has wire already installed in it. The included wiring is black, white and green, solid 14 ga. 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. The earthing banjo can also be slipped over the gland before its inserted into your enclosure or consumer unit.Earthing banjo slipped over threaded sleeve, Earthing banjo slipped over threaded sleeve. Would someone please give me some insight on this ? Need a bonding expert to chime in on this. White wires are neutral, meaning they carry power back to the service panel. #geekstreet #diy #amouredcableCheck prices / Purchase here:US - https://amzn.to/2Risp7VCanada - https://amzn.to/2CUy1wvUK - https://amzn.to/2QtjUSjGerman. my memory aint what it used to be!) If you'd like to support the site, please allow ads. As a small thank you, wed like to offer you a $30 gift card (valid at GoNift.com). JavaScript is disabled. Low smoke and toxic and corrosiand. Also, what is the procedure for earthing the armour? This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>

\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/fe\/Use-Armored-%28BX%29-Electrical-Cable-Step-7.jpg\/v4-460px-Use-Armored-%28BX%29-Electrical-Cable-Step-7.jpg","bigUrl":"\/images\/thumb\/f\/fe\/Use-Armored-%28BX%29-Electrical-Cable-Step-7.jpg\/aid1662092-v4-728px-Use-Armored-%28BX%29-Electrical-Cable-Step-7.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"