Fasten the box to the bar. 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. Squeeze the handles on the cable cutter to secure the armored cable in the cutter. AC couldn't be used because there would be no way to ground the device ruling AC out immediately. Wickes Cable Ties - White 4.8 x 280mm Pack of 10. You are using an out of date browser. The main drawback is that BX is more expensive. 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. So a 'temporary' installation to sidestep Part P requirements. OK, good point. It is about 35-40% more for the cable than BX. Step 1: Determine the type of steel in the cable. Unless it's approved as a permanent wiring method, you can't use it. Assuming I change out the cable to MC, can I still connect it to the plastic j-box as long as their is a separate ground wire for the receptacle in the firebox, or do your recommend I change that one j-box to a metal box? If you use the correct external clamp you can use any approved wiring method. Yes, it is best to use a storm gland for outdoor use. Home > DIY How To Projects and Tutorial Guides > How to Connect and Wire up Armoured Cable or SWA Cable. Click to expand. Electrical caulk for MC PVC cable connectors. (26) 1.55. When it comes to exactly what situations armoured cable should be used in, generally if the cable itself is going to be exposed to the weather and needs to be fully sealed and water proof e.g. 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. Did you use a clamp rated for the type of cable you are using (AC or MC)? It can be used both on the interior or the property and the exterior and it can either be clipped to a solid secure surface such as a wall or it can be buried in the ground and hidden away. 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. JavaScript is disabled. If there was a fault and the jacket became energized the current would have to travel down the jacket until it reached a metallic box. A metal box can be grounded by AC or metallic conduit, but a plastic box needs a run ground conductor. The short aluminum "wire" is the bonding strap and can be cut off. 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. 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 . When it comes to surface mounting armoured cable it should be clipped up securely to a sturdy solid surface using the correct cable cleats. The bottom of the joist is effectively in tension like a rope while the top is in compression. However, you should always use a flat head screwdriver and hammer to gently tap the lock nut until it is tightened very securely. Single pair shielded thermocouple extension cables shall be used between thermocouple head and junction boxes / transmitters / local control panel mounted instruments. Exception No. Say the metallic cable was 100 ft long and the short happened at the end near the plastic box, the fault current would have to back track 100 ft to the metal box and then 100ft down the grounding wire. All tip submissions are carefully reviewed before being published. I think I can afford the extra buck fifty :-). That is AC cable so the sheath is the ground. I have located all the items at Screwfix. In terms of the earth cable, you should use this should reflect the size of armoured cable you are using e.g. 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 ? If you'd like to support the site, please allow ads. I actually don't remember which edition of the NEC this was clarified. This article has been viewed 79,772 times. There are many different types of armored cable. 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. ex. 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. Repeat for the connections at the other end. Installing and connecting up SWA cable is notifiable work and should only be carried out by a qualified Part P registered electrician. 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. Required fields are marked *. Was told more then once I could not do it. Cut deep enough to where you start cutting through the metal, but not so deep you are all the way through and start cutting in to the wire. Neutral Wire's Plastic Insulation Turned Brown. Will check another. all the time. Place the wires in crossed position intersecting about 5 mm from the insulation of the tap wire and the main wire. Free shipping for many products! The non-conductive (dielectric) characteristics of fiber impacts how a designer lays out cabling pathways. brown for live, blue for neutral etc. Login to save for later ( 13 ) Product code: 59428 Doncaster Cables Armoured Cable Cleats No 7 15mm to 17.8mm 8.58. The third part, Raceways, includes the rules applying to the installation of all types of raceways.It is divided into a general . By using our site, you agree to our. Permanent armored wiring would be type AC or type MC. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. ex. The clamps in the box are most likely for NM cable though, so you need to use a knockout with an AC cable clamp. Thanks. "The cable I used was labeled "14/3 appliance cable":". 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. Work gloves are handy when working with armored cable. 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. Manage Settings It is handled differently than standard Romex (non-metallic sheathed) cable. If for example you are using a 3-core cable but you need all 3 inner cores for other uses e.g. what screw in fittings are you talking about? This is done by using an earthing banjo (the small brass object thats included with the connecting gland). This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. It is safer and faster than using a hacksaw. Place the cover onto the box front and tighten the screws. wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. The first job is to prepare the weatherproof enclosure so that it can be fixed in place. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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