\u00a9 2023 wikiHow, Inc. All rights reserved. The trench is then back filled with soil. The metal armor can also act as a part of the earth grounding in combination with the bonding wire. Use it to try out great new products and services nationwide without paying full pricewine, food delivery, clothing and more. BX cable, more properly known as Type AC, does not have a copper ground. Strip the tap wire end about 75 mm. Threaded sleeve secured on base of waterproof enclosure. Did you use a clamp rated for the type of cable you are using (AC or MC)? Step 4. The short aluminum "wire" is the bonding strap and can be cut off. If the manufacturer doesn't say it's approved for a particular wiring method, then it's not approved. 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. It is often used in fire-rated occupancies as an alternative to metallic conduit. Wickes Cable Ties - White 4.8 x 280mm Pack of 10. Place the wires in crossed position intersecting about 5 mm from the insulation of the tap wire and the main wire. He deoesn't have MC cable. If the BX doesn't include a separate ground wire then you'd need a special box connector that provides a ground lug. 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. It is safer and faster than using a hacksaw. Green or bare wires are ground wires. You may also have trouble picking up ground unless you used a cable with a ground conductor (MC). JavaScript is disabled. If you are running the cable down the surface of the wall and not inside the wall, then I would run the cable in EMT on the surface of the wall using one of the clamps mentioned earlier, then to a 4" square box at the end (which gives more room to work compared to a single . As with the rest of the job, this should only be done by a Part P registered, fully qualified electrician! 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. MP-AP uses the armor for an EGC. I want to run armoured cable from house to obs. With the hole created the next job is to install the gland in the base of the weatherproof enclosure. In this case it will be fixed inside a porch area. Installation should only be carried out by a competent person, with relevant knowledge and skilled in the installation of Cable Glands. It may not display this or other websites correctly. Include your email address to get a message when this question is answered. 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. VAT 14.16 qty . Use wire strippers to strip 34 inch (19 mm) of casing insulation off the end of every wire going into the junction box. A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to carry light. First slip the earth tag over the threaded sleeve and then push the sleeve up through the base of the enclosure and then pop the threaded sleeve retaining nut on the shredded sleeve and then screw it down and tighten fully with a spanner. We do not intend to infringe any legitimate intellectual right, artistic rights or copyright. 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. It's fine to terminate SWA into a plastic enclosure, although you need to be the judge of whether or not said enclosure is strong enough to take the mechanical stress the cable may put on it. VAT 20.20 qty Collection . In the example below we are going to run through whats involved in running an armoured supply cable from a property out to an outbuilding via an exterior weatherproof enclosure in a porch. Thanks! Just use a normal IP65 plastic adapt box and drill your 20mm holes to suit and fasten gland or copex with nut !!!!!!! Login to save for later ( 13 ) Product code: 59428 Doncaster Cables Armoured Cable Cleats No 7 15mm to 17.8mm 8.58. Junction boxes (or a J box) protect the connections from accidental damage and contain sparks and heat from a loose connection or short circuit. And advice on mixing finishes? Wrap each side of the wire for about four to five turns as shown in figure 4. How to Connect and Wire up Armoured Cable or SWA Cable, General Building, Self Build and Renovation, Planning Regs, Project Management and Safety, Let us help you find a tradesman local to you, Installing a Consumer Unit Consumer Units Explained, Electric Cable Sizes and Amp Ratings for the UK, Understanding Electrical Cables and Flexes, How to Wire a Junction Box for Socket and Light Circuits, 3-core = 2 different types: 1 brown, 1 blue and 1 yellow/green (earth) or: 1 black, 1 grey and 1 brown, 4-core = 1 brown, 1 black, 1 grey and 1 blue, 5-core = 1 brown, 1 grey, 1 blue and 1 yellow/green. Yellow electrical cable trench warning tape. Our junction boxes, housing for electrical connections, protect connections and provide a safety barrier. Would someone please give me some insight on this ? We might be able to do something about it. Jeez. 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. Expose the Electrical Wire Rotate. . When designing with fiber, you can utilize the shortest pathway versus avoiding EMI sources. Most of the images displayed are of unknown origin. This article has been viewed 79,772 times. 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. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. When installing SWA steel wired armoured cable it best to use 3 core - 1.Phase / Live, 2.neutral, 3.CPC Earth. What is wanted is not the will to believe, but the will to find out, which is the exact opposite. 4.4 (93) 699 - 899. 130 Points 63 Location Pennsylvania Jan 6, 2019 #2 That is AC cable so the sheath is the ground. For this you will need 2 spanners, one to hold the sleeve and the other to tighten the collar nut. 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. In terms of burying armoured cable, it should be buried at 450mm down from the surface with ideally a layer of sand in the base of the trench. 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. is using 6mm armoured cable you should use 6mm earth cable etc. 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. even if you are not using the armour as the earth, you need to earth it as it is an extraneous (or is it exposed? It would be better for the fault 99 feet away to travel to the box 1ft away than to back track 99 ft. Unlike standard electrical cable, armoured cable inner core wires are coloured slightly differently than standard electrical cables. 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! Find junction boxes for a variety of amperages and terminals to suit the purpose, and screwless push in connectors. Hint: Attach the cable clamp to the cable and thread the wires through the knockout hole. You are using an out of date browser. 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. Duh, don't know why I thought I could do that". A metal box can be grounded by AC or metallic conduit, but a plastic box needs a run ground conductor. #geekstreet #diy #amouredcableCheck prices / Purchase here:US - https://amzn.to/2Risp7VCanada - https://amzn.to/2CUy1wvUK - https://amzn.to/2QtjUSjGermany - https://amzn.to/2RzMXbjFrance - https://amzn.to/2SIWyd9Italy - https://amzn.to/2C6IJ13Spain - https://amzn.to/2TxkyjFThis video demonstrates how to join 2 armoured cables using a Resin Underground Armoured Cable Joint Kit.Demonstrated by A\u0026N Contractshttp://aandncontracts.comEmail :[email protected] :+44 (0)7950 415 790 https://www.amazon.co.uk/shop/geekstreet https://www.amazon.com/shop/geekstreet Don't forget to Like this video and Subscribe to our channel (IT'S FREE) http://bit.ly/2V4fV1Y Follow us on Social Media TWITTER: https://twitter.com/YTGeekStreet INSTAGRAM: https://www.instagram.com/YTGeekStreet FACEBOOK: https://www.facebook.com/YTGeekStreet Contact us Email for Business Enquires: [email protected] Live Chat via WeChat id: GeekStreet Free Amazon Trials US - Prime - https://amzn.to/2Rde0Xd UK - Prime - https://amzn.to/2N8jSgX Germany - Music Prime - https://amzn.to/2DGwZXm Italy - Prime - https://amzn.to/2N77iP6 Spain - Prime - https://amzn.to/2IrQGAG 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. Fit the shroud. This specification covers the requirements for instrument signal cables, thermocouple extension cables, RTD cables and power / control cables. The fitting process is as follows: Begin by unscrewing the cable gland and sliding the various parts onto the cable in the correct order I picked up two of the "screw-in" fittings to connect the MC to the boxes. chemically inert and therefore completely safe. patress box, weather proof enclosure, consumer unit etc. Interesting question regarding bonding. In this DIY guide you will learn how to correctly use and connect up armoured or SWA cable. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This article has been viewed 79,772 times. Then bend and break the metal off. Burying not necessary. I installed a metal junction box with receptacle in the firebox of our masonry fireplace. I forget they clarified that part, in what-the1999, when I started out it was not so understood and a bit muddled. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. MC and AC cables may have very similar appearance. Junction Box Waterproof ABS . Galvanized Steel Fixed Chimney Cap in Black Pickup 1 in stock at South Loop Delivery Free Add to Cart Compare 269 More Options Available $5896 ( 181) Model# SCCA Master Flow 8 in. Kitchen track lights suddenly "possessed". 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. 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. x 8 in. Free shipping. Small Business. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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