"Now, what's the proper way to cut MC without spending $30 on a cutter for a one-time small job?". The cable I used was labeled "14/3 appliance cable" and is 6 ft long, with attached end connectors which thread onto the flexible metal conduit and have a threaded open end with a thin jam nut. For the sake of a small extra cost, it is better to purchase 3 core cable, which includes a separate earth lead. Sure couldn't do it with a plastic box at both ends, the armor would not be bonded. You can easily find spools of BX cable up to 1,000 feet long. Jeez. In terms of the earth cable, you should use this should reflect the size of armoured cable you are using e.g. Apparently there was some mis-communication about the use of plastic boxes with metallic clad cable. I think that the intent is to have maintain ground connection of the metallic raceway when a plastic box usually insulates between two kos. Modern conduit is made of rigid metal that can be bent into elbows, plastic that includes pre-bent elbows, and flexible metal and plastic ENT materials. Strip the tap wire end about 75 mm. But cleat it a few inches above the ground level so it is clear of enthusiastic gardeners. #geekstreet #diy #amouredcableCheck prices / Purchase here:US - https://amzn.to/2Risp7VCanada - https://amzn.to/2CUy1wvUK - https://amzn.to/2QtjUSjGerman. An example of data being processed may be a unique identifier stored in a cookie. Seems like it would be a straight shot to me but maybe I'm not seeing something. Reduced labor and material costs. 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. and the main wire end about 25 mm. The armoured cable is the garage feed. 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. Did you use a clamp rated for the type of cable you are using (AC or MC)? Can you imagine putting a bonding connector in a one gang old work gem box? As with the rest of the job, this should only be done by a Part P registered, fully qualified electrician! Fit the shroud. Yellow electrical cable trench warning tape. you need to specify if the cable has an earth wire for a definate answer. the large hole of the earthing banjo is slipped over the gland before the retaining nut is screwed down. Use a wire nut to connect multiple wires. As we have stated, the initial connection to the consumer unit and corresponding MCB would be done using 10mm cable and this would then run to the weather proof enclosure where it would connect to the armoured cable. Installation of cable glands must be carried whilst following the appropriate codes of practice, local regulations and in accordance with manufacturer guidelines. It shows you how SWA glands work. 1: Where internal bonding means are provided between all entries, nonmetallic boxes shall be permitted to be used with metal raceways or metal-armored cables. By using our site, you agree to our. Measure the length you need. For a better experience, please enable JavaScript in your browser before proceeding. I have purchased 1.5mm armoured cable to connect from externally mounted junction box to 2 bulk head lights in the garden. A craptastic decision, IMHO. Some of the most reviewed products in Conduit Fittings are the Halex 3/8 in. Just use a normal IP65 plastic adapt box and drill your 20mm holes to suit and fasten gland or copex with nut !!!!!!! Manage Settings 7 / 10. . Small Business. Use wire strippers to strip 34 inch (19 mm) of casing insulation off the end of every wire going into the junction box. wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. I hope this isn't one of those Code changes that escaped me again but I've been told by a CEU instructor that it is Code compliant to terminate MC cable in plastic JB's. <a title="How To Connect Armoured Cable . Place the wires in crossed position intersecting about 5 mm from the insulation of the tap wire and the main wire. All project content written and produced by Mike Edwards, founder of DIY Doctor and industry expert in building technology. Securely connect cable in sanitary environments such as food plants with these watertight cord grips. 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. Holes are made in junction boxes, cut out boxes, etc. in a 3-phase setup then it is also possible to use the steel armour section of the cable as the earth. Expose the Electrical Wire Rotate. my memory aint what it used to be!) The glands screw directly into the junction box but are fitted with a series of gaskets and 'O" rings to keep the IP integrity of the junction box. 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. If you need to find a tradesperson to get your job done, please try our local search below, Is it ok to terminate an armoured cable directly into a plastic 2 -way garage consumer unit providing the brass ring is used with the gland kit for the earth return ? 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. Wickes 4 Terminal Junction Box - White 5A. I've been told by a CEU instructor that it is Code compliant to terminate MC cable in plastic JB's. With a hacksaw at 90 degrees to the armor spiral. the box you depict in your reply is not a standard use plastic box. Thanks to all authors for creating a page that has been read 79,772 times. Let us help you find a tradesman local to you. Push a plastic anti-short bushing onto the wires where it contacts the metal armor. The metal armor can also act as a part of the earth grounding in combination with the bonding wire. Insert the armored cable into an armored cable rotary cutter. Select the supplier or trade you require, enter your location to begin your search. For MC cable, the armor is not an EGC, there is a green EGC for that. Traditionally with a twisted copper cable network, you would take into consideration . 4. Use metal-clad (MC) with a metal sheath specifically listed as impervious to water, or underground feeder/branch circuit cable (UF), either by itself or in a conduit system approved for use in wet locations (if you desire additional protection from physical damage to the cable). You can create your listing free at DIYnot Local. Ensure you leave sufficient slack for corners, as well as for the depth it will need to be buried, or the length needed to run it up a wall. Step 5: Cut the cable. A suitable strain relief must be provided to . DISCLAIMER: All wallpapers and backgrounds found here are believed to be in the "public domain". 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. MC has wire already installed in it. cable.". The double connector does penetrate the box. Will check another. To create this article, volunteer authors worked to edit and improve it over time. Our enclosures provide a lockable cover facility giving protection and security against tampering. As far as the plastic or metal box goes, I don't see any functional difference between them for this application. 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. It is safer and faster than using a hacksaw. Twist the exposed ends of the same-colored wires together with a pair pf pliers. How would you freshen up this exterior on a $10,000 budget! To keep the cable in place and prevent any drooping or possibility of snagging a cleat should be placed at least every 450mm.Armoured cable mounting cleat. Now I need to find the correct cable clamp to secure the MC to the box. In terms of the conductors (the charge-carrying copper wire), domestic armoured cable comes in a range of different cores including 1 core, 2 core, 3 core and 4 core and 5 core to suit different install situations. BX cable, more properly known as Type AC, does not have a copper ground. Looking at the fitting in your picture I guess it is approved for use with MC (going off of what the package says). During assembling the gland and cable, once its pushed through the item you are connecting to e.g. Squeeze the handles on the cable cutter to secure the armored cable in the cutter. But, still, it screams "AMATEUR". It looks like you're using an ad blocker. We and our partners use cookies to Store and/or access information on a device. All the other boxes in the house are plastic for use with NM cable. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. or if you are doing it yourself you can find suppliers local to you. Most of the images displayed are of unknown origin. In this guide we will take a look at SWA cable and how its used. Local jurisdictions may interpret such rules differently. Best LED dimmers for 3-way with buzzing problems? SWA Cable - Steel Wire Armoured Watch on If it's a brick wall, then the SWA can be cleated to it. 15 Apr 2009 #2 you need to specify if the cable has an earth wire for a definate answer. 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. Use it to try out great new products and services nationwide without paying full pricewine, food delivery, clothing and more. I was using 100 ft as an example. This type of cable is available with at least two main wires (live and neutral), where the steel wires are used as an earth. Add any required cable supports (e.g., staples, clamps, brackets). Is BX cable required in NY in a one-story church assembly area? 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. In this DIY guide you will learn how to correctly use and connect up armoured or SWA cable. 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. My guess is that since the cable is exposed in a habitable portion of the house, it needs to be in either a conduit or armored. 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. It may not display this or other websites correctly. If the manufacturer doesn't say it's approved for a particular wiring method, then it's not approved. If you do not have a ground wire in the cable, you are going to have a problem attaching grounds in the box to just a cable clamp. The fitting process is as follows: Begin by unscrewing the cable gland and sliding the various parts onto the cable in the correct order Mike makes an excellent point about putting a hole in a box designed for NM cable. The junction box should be located as shown in figure 1 and with as much slack as possible remaining in the cable between the box and the appliance, so it can be moved if servicing is ever necessary. Electrical caulk for MC PVC cable connectors. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Always wear eye protection for the same reason. That does not sound like an approved permanent wiring method. However, if you then leave that first plastic JB with MC and then go to another plastic JB that metal jacket is no longer grounded. Puedo rechazar las cookies no esenciales haciendo clic en 'Gestionar preferencias'. The cable is 3 core so one core will be the earth , but what if it was 2 - core ? We work with the industries best to ensure that we recommend only reliable and trustworthy tradesmen. For instance, PG16 thread for screwing in sensors and several other types of equipment, connectors, and junction boxes. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. If the armored cable is BX without a copper ground, use a metal junction box and attach the Romex grounds to the metal box preferably with a ground screw and pigtail (stinger). You may also have trouble picking up ground unless you used a cable with a ground conductor (MC). Make sure you have the proper connectors for the selected type of cable. With the NM electrical cable protruding from the box, rip off the sheathing with the cable ripper. Wires coated with insulation that is black, red, or another color are hot wires, carrying power from the service panel to the electrical device. 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. Place the cover onto the box front and tighten the screws. We did it that way for a ong time before the hand crank tyoe cutter was invented, and it was patented and expensive for many years. Would someone please give me some insight on this ? So a 'temporary' installation to sidestep Part P requirements. IP68 External/Outdoor Waterproof Junction Box,3-Way Cable Connector, 3-Way Cable Connector Wire Electrical Junction Box For 5mm-15mm Diameter Cable,Black Plastic Armoured Cable Connector - 3REE. If the brass ring is used along with a 5mm brass nut and bolt and it tests out ok then is this good enough ? By signing up you are agreeing to receive emails according to our privacy policy. Ip65 41a 5 terminal weatherproof outdoor adaptable box 110 x 67 110mm junction bo fix com learn the basics on how to work with metal clad cable pvc accessories wall tee manufacturer from delhi esr 100mm ip56 square electrical world 95 57mm toolstation use armored bx 11 steps pictures thuba ltd plastic abs enclosure waterproof standard sizes zhejiang . This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. 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. 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 Step 6: Remove the PVC. PVC sleeve slipped over end of armoured cable, PVC sleeve slipped over end of armoured cable, In the exact following order, the sealed nut is slipped on and then the collar retaining nut and then the cable retaining collar ensuring that they are all facing the correct way around. patress box, weather proof enclosure, consumer unit etc. Are you a trade or supplier? This specification covers the requirements for instrument signal cables, thermocouple extension cables, RTD cables and power / control cables. It may not display this or other websites correctly. 130 Points 63 Location Pennsylvania Jan 6, 2019 #2 That is AC cable so the sheath is the ground. Before any work was carried out the entire consumer unit was isolated before the new MCB was added. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2023 wikiHow, Inc. All rights reserved. Nonmetallic boxes shall be permitted only with open wiring on insulators, concealed knob-and-tube wiring, cabled wiring methods with entirely nonmetallic sheaths, flexible cords, and nonmetallic raceways. It is often used in fire-rated occupancies as an alternative to metallic conduit. The cable appears to be "similar" to MC but may not be actual MC. IMHO, if the MC originates out of a metal JB or a load center it is grounded at that point. I just picked up a 25 foot section of 12/2 MC cable with ground (THHN wire). Keep up to date with our DIY projects, tips and latest deals, DIY Doctor Ltd, The Workshop, Newbury Works, Somerset, BA3 5RX, DIY Doctor Ltd 2023 All Rights Reserved, Company Number: 05863375 | VAT Number: 811134774. It may not display this or other websites correctly. 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. Proper Step on Installing Armored Cable Glands. Wickes Exterior Cable Clips - Black 9mm Pack of 50. Repeat for the connections at the other end. - 1/2 in. So that its easier to get on the cable before its stripped, as once prepared the cores or armoured steel sheath can catch the next job is to slide the rest of the glad on to the end of the cable.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'diydoctor_org_uk-narrow-sky-1','ezslot_20',812,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-narrow-sky-1-0'); First, use a utility knife to trim the bottom 10mm or so off of the PVC sleeve and then slip it over the end of the cable and pull it down. Keep up with tech in just 5 minutes a week! Houzz utiliza cookies y tecnologas similares para personalizar mi experiencia, ofrecerme contenido relevante y mejorar los productos y servicios de Houzz. For this you will need 2 spanners, one to hold the sleeve and the other to tighten the collar nut.Tightening collar nut using spanner, The penultimate job now is to screw up the sealed nut up to the sleeve. Free shipping for many products! The reason there is a 1/2" knockout in that plastic 1900 box is for running larger sized NM cables like 10/3 or 10/4 or an 8/3 wire. 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. 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. 3) Individual conductors run inside conduit: Individual . VAT 14.16 qty . Where does it come out of the wall? 2. You may be required to use bushings that have an indicator tab, tip or tail. Thanks! Chris if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'diydoctor_org_uk-medrectangle-3','ezslot_8',823,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-medrectangle-3-0');The cable itself can be used in a variety of different ways. What to do With Spare Wires Never cut off a wire that is not being used especially a ground wire. 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. Supply wiring for outdoor socket Installing an Outdoor Socket wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. That cable needs to attach to a metal box. We use cookies to make wikiHow great. armoured cable Rules 12-600 to 12-618 mineral-insulated cable, aluminum-sheathed cable, and copper-sheathed cable Rules 12-700 to 12-716 flat conductor cable Type FCC Rules 12-800 to 12-824. Use a standard steel adaptable box, Armoured gland into one side & standard Sprint or similar cable gland into the other for the 6mm. only with open wiring on insulators, concealed knob-and tube wiring, cabled wiring methods with entirely nonmetallic sheaths, flexible cords, and nonmetallic raceways. 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. The plastic sheathing of NM cable does not shield electric fields. Furthermore, you'll need to pry out or punch out a 1/2" trade size (7/8" actual diameter) knockout either in the top or a free side of the box, then use a type AC/MC connector (straight for a top feed, 90 aka right-angle for a side feed) to bring the cable into the box. 7 / 12 Install the Connector Into the Box First Step 4: Measure the distance from the consumer unit. Available in either rigid or flexible forms, a conduit protects the wires and is used in exposed locations (such as along the exterior surface of a wall) as well as in unfinished areas (like basements, crawlspaces, and attics), and in surface-mounted . Now, pull the collar up over the wire strands and then pull up the collar nut and tighten it fully. 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 Oh,it might pass. Wrap each side of the wire for about four to five turns as shown in figure 4. We also supply entry plates, service connector blocks, and cable joints Once connected up the electrician then fully tested everything to ensure it was safe and then turned the power back on to run a live test.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'diydoctor_org_uk-mobile-leaderboard-2','ezslot_19',815,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-mobile-leaderboard-2-0');10mm cable from consumer unit connected to armoured cable, 10mm cable from consumer unit connected to armoured cable. (Then again, it might flunk as not being "workmanlike".) 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. Never overload a wirefor instance, never wire a 20-amp circuit with 14-gauge wire. (18) 1.25. Step 3. Show more abrelectric 5K views 6 months ago BX Wiring: Top 5 Issues | Jesse. However, you should always use a flat head screwdriver and hammer to gently tap the lock nut until it is tightened very securely. "I didn't think you could just drill a hole in a junction box. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. The science behind why you don't notch the bottom or top face of a joist is that the highest concentration of stresses are present at the extreme fibers. If there is damage, you may need to try again by moving back and redoing another cut. OK, that clarifies things for "boxes" what about non metallic cabinets, non metallic gutters/wireways, or other non metallic enclosures not specifically referred to by NEC as "boxes"? This video will help you work with older electrical conduit and junction boxes to connect to modern Romex cable. 518.4(B,C). This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2023 wikiHow, Inc. All rights reserved. Armoured cable pushed into sleeve up to PVC covering. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2023 wikiHow, Inc. All rights reserved. Exception No. The main drawback is that BX is more expensive. Below, we listed the essential information about the thread nominal size of PG cable glands. There are however others but these are generally reserved for more specialist industrial applications. A tool comprised of a special clamp with a rotary cutter is available for those doing a lot of AC or MC installation. Likewise if there is also a chance that it could get damaged by impact force e.g. The choice of whether armoured cable is surface mounted or buried depends on several factors including the preferences of the homeowner whos having the cable installed, the install location and the budget. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Attach conduit and armored cable to a knockout in an outlet box or enclosure. A dual fitting aleiviates that. Boxes are not approved for a wiring method unless they have integral clamps.Plastic box tab 'clamps' are rated for NM and nothing else.Metal boxes with internal clamps are specific because of the clamps. Step 1: Determine the type of steel in the cable. Reply to stidge L LankyWill Jun 20, 2017 #3 {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c1\/Use-Armored-%28BX%29-Electrical-Cable-Step-1.jpg\/v4-460px-Use-Armored-%28BX%29-Electrical-Cable-Step-1.jpg","bigUrl":"\/images\/thumb\/c\/c1\/Use-Armored-%28BX%29-Electrical-Cable-Step-1.jpg\/aid1662092-v4-728px-Use-Armored-%28BX%29-Electrical-Cable-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":" \u00a9 2023 wikiHow, Inc. All rights reserved. Junction boxes (or a J box) protect the connections from accidental damage and contain sparks and heat from a loose connection or short circuit. Rip and Strip the Wire. Include your email address to get a message when this question is answered. 5 Repeat the process at the other end of the cable. how to connect armoured cable to plastic junction box