\u00a9 2023 wikiHow, Inc. All rights reserved. a 20A MCB would be fitted in the consumer unit. I've only used those types of screw in fittings with flex though and didn't think they were approved for MC. all the time. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. The cable is then laid on the sand and then to yellow cable marking tape is then laid over the cable to signify to anyone digging in the ground that there is a cable present. When installing SWA steel wired armoured cable it best to use 3 core - 1.Phase / Live, 2.neutral, 3.CPC Earth. patress box, weather proof enclosure, consumer unit etc. Exception No. used externally then armoured cable should definitely be used. Finally, strip the coating from the wires with the wire stripper . "I didn't think you could just drill a hole in a junction box. Back to Cable Management Electrical, Cable & Junction Boxes Protect essential wiring connections in the home or office with a range of junction boxes at Toolstation. 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. how to connect armoured cable to junction box. VAT 7.15 qty Select from 6 variations . The plastic tab clamps in a plastic box are only approved for NM. There are however others but these are generally reserved for more specialist industrial applications. The fitting process is as follows: Begin by unscrewing the cable gland and sliding the various parts onto the cable in the correct order 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. Use it to try out great new products and services nationwide without paying full pricewine, food delivery, clothing and more. - 1/2 in. AC couldn't be used because there would be no way to ground the device ruling AC out immediately. 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. Learn more Electrical cable encased in metal sheathing is often used in basements and other areas where the wire is not encased in a finished wall. Make sure you have the proper connectors for the selected type of cable. If the homeowner isnt too bothered about visual appearance then in pretty much all cases its much cheaper and easier to surface mount the cable along any nearby walls or fences.Armoured cable surface mountedif(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'diydoctor_org_uk-large-leaderboard-2','ezslot_9',685,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-large-leaderboard-2-0'); If however the homeowner or customer is particular about how visible the cable maybe then burying it is the way to go for sure, however this can in some cases be costly and involve a fair amount of work. 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. I bored a hole in the side of the plastic box and connected the flexible metal cable via a fitting and lock nut. 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. In most cases this is done in the same way that any other electrical cable is earthed by using one of the inner cores. Where does it come out of the wall? The actual gauge for your project will depend upon the length and the operating load to be fed at the far end. <a title="How To Connect Armoured Cable . But cleat it a few inches above the ground level so it is clear of enthusiastic gardeners. my memory aint what it used to be!) Oh,it might pass. Yellow electrical cable trench warning tape. The consent submitted will only be used for data processing originating from this website. The short aluminum "wire" is the bonding strap and can be cut off. Seems it should be bonded at the 1st box that it leaves rather than relying on the equipment/ box down the line to take care of the bonding. x 8 in. #geekstreet #diy #amouredcableCheck prices / Purchase here:US - https://amzn.to/2Risp7VCanada - https://amzn.to/2CUy1wvUK - https://amzn.to/2QtjUSjGerman. 130 Points 63 Location Pennsylvania Jan 6, 2019 #2 That is AC cable so the sheath is the ground. 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. I have located all the items at Screwfix. In the event I run into this situation Ill use a double inlet type mc connector so there is continuous metal contact. The included wiring is black, white and green, solid 14 ga. Best LED dimmers for 3-way with buzzing problems? All tip submissions are carefully reviewed before being published. BX cable, more properly known as Type AC, does not have a copper ground. Jeez, those sections look wierd now. The PG series cable glands start from PG7 to PG63 as normal sizes in the worldwide market. 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 main drawback is that BX is more expensive. 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. I have purchased 1.5mm armoured cable to connect from externally mounted junction box to 2 bulk head lights in the garden. Most of the images displayed are of unknown origin. Where can MC cable be used? "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'm replacing the dishwasher in a 1960s house I just bought, and I don't really trust the electrical in this house. The plastic sheathing of NM cable does not shield electric fields. I forget they clarified that part, in what-the1999, when I started out it was not so understood and a bit muddled. 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. You can do that as long as you use the correct cable clamp to secure the cable to the box. Use a standard steel adaptable box, Armoured gland into one side & standard Sprint or similar cable gland into the other for the 6mm. 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. If it's what I'm thinking of, they are for flex and not MC. 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