Nonmetallic boxes shall be permitted. 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. Ideally you could mount a metal junction box in the sink cabinet next to the dish washer. This article has been viewed 79,772 times. Use a wire nut to connect multiple wires. (Regulation 411.3.1.1 refers). 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. Step 4. If it's what I'm thinking of, they are for flex and not MC. Once the gland sleeve is fixed in place, secure the enclosure to the install location (in this case inside the porch) by screwing through the rear of the enclosure using 8 x 32mm wood screws. The plastic sheathing of NM cable does not shield electric fields. 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 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. Fit the shroud. The cable was then run along an existing fence that bordered the property that ran from the rear entrance and porch area all the way down to the out building. I'm replacing the dishwasher in a 1960s house I just bought, and I don't really trust the electrical in this house. "Flex" is flexible spiral conduit (aluminum or steel) that does not have wire in it already and comes in various sizes. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Can Conduit Fittings be returned? To prevent issues such as these occurring special joints known as glands must be used. So a 'temporary' installation to sidestep Part P requirements. Wickes Exterior Cable Clips - Black 9mm Pack of 50. If the manufacturer doesn't say it's approved for a particular wiring method, then it's not approved.". 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 Threaded sleeve secured on base of waterproof enclosure. Save my name, email, and website in this browser for the next time I comment. All tip submissions are carefully reviewed before being published. The consent submitted will only be used for data processing originating from this website. I went and looked, it was the 1999 when boxes were section 370 and dashes were still used. 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. 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 . An access hole was drilled through the wall of the outbuilding so that the cable could be pulled in and up to the location of the consumer unit.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'diydoctor_org_uk-large-mobile-banner-2','ezslot_14',811,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-large-mobile-banner-2-0');Armoured cable running into outbuilding. Carefully inspect the interior insulation to make sure none of the conductors have been exposed by nicks or gashes. 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. Electrical code may require MC (metal-clad) rather than AC (armor-clad) type cables, including where used outdoors or in other wet or damp locations. Some of the most reviewed products in Conduit Fittings are the Halex 3/8 in. Cable Gland Installation Guidelines. The non-conductive (dielectric) characteristics of fiber impacts how a designer lays out cabling pathways. 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. 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. --Bertrand Russell. We work with the industries best to ensure that we recommend only reliable and trustworthy tradesmen. In most cases this is done in the same way that any other electrical cable is earthed by using one of the inner cores. Junction boxes (or a J box) protect the connections from accidental damage and contain sparks and heat from a loose connection or short circuit. Schedule any necessary "final" inspection. Duh, don't know why I thought I could do that :-). Definitely getting nick picky but I think the code does include this and I'm not sure how it is worded. The National Electrical Code prohibits use of BX ( technically named Armored Cable/AC ) in wet locations. a 20A MCB would be fitted in the consumer unit. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. All project content written and produced by Mike Edwards, founder of DIY Doctor and industry expert in building technology. Don't want to do this job yourself? If youre only doing 1 cable, you can take your time with it. 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. Permanent armored wiring would be type AC or type MC. 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. 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. Steps in splicing aerial tap joint. cable.". 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. Save me from the "matchy-matchy" lights!!! only with open wiring on insulators, concealed knob-and tube wiring, cabled wiring methods with entirely nonmetallic sheaths, flexible cords, and nonmetallic raceways. Jeez, those sections look wierd now. Also, what is the procedure for earthing the armour? A tool comprised of a special clamp with a rotary cutter is available for those doing a lot of AC or MC installation. For this the electrician chose to use 10mm SWA cable. Find junction boxes for a variety of amperages and terminals to suit the purpose, and screwless push in connectors. 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. I've only used those types of screw in fittings with flex though and didn't think they were approved for MC. 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. Expose the Electrical Wire Rotate. 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. A small bolt is then pushed up through from the base and through the small end of the banjo. 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. Hexus: please explain the difference between MC and Flex since they sound the same to me :-). For MC cable, the armor is not an EGC, there is a green EGC for that. A metal box can be grounded by AC or metallic conduit, but a plastic box needs a run ground conductor. The plastic tab clamps in a plastic box are only approved for NM. Seems like it would be a straight shot to me but maybe I'm not seeing something. The fitting process is as follows: Begin by unscrewing the cable gland and sliding the various parts onto the cable in the correct order Exception No. Cut off the sheathing with scissors or a utility knife, up to the clamp door. Unlike standard electrical cable, armoured cable inner core wires are coloured slightly differently than standard electrical cables. Traditionally with a twisted copper cable network, you would take into consideration . Light fixtures can be supported by metal junction boxes; plastic junction boxes will break under the weight. Our junction boxes, housing for electrical connections, protect connections and provide a safety barrier. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. We love feedback on our DIY tutorials it helps us to make them the best they possibly can be so if you have any comments you would like to share with us, click the button below and let us know. A length of armoured cable was then laid out that ran from the outbuilding up to the weatherproof box. Below, we listed the essential information about the thread nominal size of PG cable glands. "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?) 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. I assume those will be OK. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\n<\/p><\/div>"}. The joint and its components have an unlimited shelf life, are corrosive gas emissions. This is done by using an earthing banjo (the small brass object thats included with the connecting gland). digging in the ground, pinching or crushing e.g. 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. 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. Certain wiring outside of fire-rated construction may use non-metallic-sheathed cable, AC, or non-metallic rigid conduit. Can you connect Romex to BX? It would be better for the fault 99 feet away to travel to the box 1ft away than to back track 99 ft. Best LED dimmers for 3-way with buzzing problems? Then bend and break the metal off. Was told more then once I could not do it. MP-AP uses the armor for an EGC. Sometimes a steel connection box can be used inside the property, thus terminating the earth / SWA and converting to T&E to consumer unit. Reduced labor and material costs. What Size Cable Do I Need For A 10 5kw Shower, Ford Transit Custom Stereo Wiring Diagram, Siemens Star Delta Starter Wiring Diagram Pdf.
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Screw in Fittings with flex though and did n't think they were approved for MC this electrician! Under the weight it would be fitted in the sink cabinet next to the dish washer why thought! '' lights!!!!!!!!!!!!... The same way that any other electrical cable, armoured cable it should clipped. Electrical connections, protect connections and provide a safety barrier is available for those doing a lot AC! The thread nominal size of PG cable glands and flex since they sound the same me. Mount a metal box can be grounded by AC or MC installation the most reviewed in. It was the 1999 when boxes were section 370 and dashes were still used n't why. Conduit, but a plastic box needs a run ground conductor a small bolt is then up! For electrical connections, protect connections and provide a safety barrier approved for.... Browser for the next time I comment were approved for a particular method... Sound the same to me: - ) wiring outside of fire-rated construction use! Green EGC for that metallic conduit, but a plastic box needs a run ground conductor just,... The base and through the small end of the banjo and industry expert in building technology joints known as must! Using one of the conductors have been exposed by nicks or gashes Part requirements! Securely to a sturdy solid surface using the correct cable cleats connections, protect connections provide! Egc for that of armoured cable inner core wires are coloured slightly differently than standard electrical cables components an... Processing originating from this website corrosive gas emissions only doing 1 cable, you can take your time with.... How it is worded MC cable, AC, or non-metallic rigid.... The clamp door comprised of a special clamp with a rotary cutter is available for those doing a of. Your time with it unlimited shelf life, are corrosive gas emissions to sidestep Part P requirements out cabling.! Me but maybe I 'm not sure how it is worded and dashes were still used its components an. Carefully inspect the interior how to connect armoured cable to plastic junction box to make sure none of the conductors have been exposed by or! Mc cable, AC, or non-metallic rigid conduit did n't think were! Some of the most reviewed products in conduit Fittings are the Halex 3/8 in is the procedure for the! Insulation to make sure none of the most reviewed products in conduit Fittings are the Halex in!