How To Choose The Correct Cable Size
Рет қаралды 13,512
Күн бұрынChoosing the correct size of cable is absolutely critical to ensuring the safety and compliance of our electrical installations. But it's not as simple as just picking the right one off the shelf, even if you've taken all the correct steps up to this point there's still a chance you'll get it wrong.
Having performed all the necessary calculations in the previous videos it's finally time to select the correct cable size. Make sure you select the right cable, from the right table, using the right installation method to get your cable size right and prevent potential disasters.
Take a dive with Joe into the exciting world of electrical design in this series of videos that will help you if you're just starting out in this area at college or work. Even if you've been an electrician for years, there's something for everyone in this series of videos.
If you want to take the full course this video is part of then click the link below to access our completely free training package you can take at a time convenient for yourself. Free, flexible, fully certified CPD: 👉 training.efixx.co.uk/course/i...
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For more information on the @ElectricHeatingCo electric boiler featured in the video click the link here: 👉 www.electric-heatingcompany.c...
🕐 Chapters 🕕
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00:00 How do I select the correct size of cable for a circuit?
00:06 Free Electrical Design Training: 👉 training.efixx.co.uk/course/i...
00:23 Electrical Design Video Playlist: 👉 • BG Electrical Design CPD+
00:37 Previous Video Rating Factors: 👉 • Electricians' Guide: C...
00:44 Tabulated Current Carrying Capacity Appendix F of the On-Site Guide
01:08 Which table to use for the right cable size?
02:08 Do I need to apply a rating factor to a cable buried in thermal insulation?
02:43 How to find the right size cable from the On-Site Guide Tables?
03:12 A word of warning about cable sizes
03:36 Is there anything else we need to know about choosing the right size cable?
03:57 Free CPD: 👉 training.efixx.co.uk/course/i...
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❌ This content on this channel is for electrical professionals.❌ ==================================
📹 Presented by
Joe Robinson - Technical Editor
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#electricaldesign #electricians #electricalinstallation
@CommercialGasEngineerVideos 2 ай бұрын
Thanks for the vid. This stuff was covered in a basic electrical course I attended but nice to get a refresher.
@bradleyclutton4564 2 ай бұрын
Future proof it 10mm for everything especially led lights
@webzterd 2 ай бұрын
I could utterly wring the neck of our builders that put in 10mm for a shower (that goes unused by everyone who simply changes the mixer tap in the tub) but for some reason put 4mm out to my garage. You know, where everyone wants to put a car charger.
@efixx 2 ай бұрын
😂 Definitely not over-engineered...
@liamdraper447 2 ай бұрын
Do they do Wagos that size yet?
@deang5622 2 ай бұрын
LED's don't use high current at 230 volts...
@grayhalf1854 2 ай бұрын
10mm? You cowboy! 16 all the way for me... 😀
@edc1569 2 ай бұрын
a 9kW electric boiler, a mere £2.70 an hour to run.
@efixx 2 ай бұрын
Well, every silver lining has its cloud! 🤷
@james.telfer 2 ай бұрын
Is the answer; whatever is lying around and can get through the hole? Extra points for running mains over CAT5/6/wet string...
@billyoung2458 2 ай бұрын
Always use 1mm singles, cheaper that way.
@klarnorbert 2 ай бұрын
1.5mm2 is the smallest you can use, according to regs.
@rrrrrrrrrrrrrrrrrr0 Ай бұрын
@@klarnorbert its 1mm² minimum for copper, 0.75mm² for flex, 0.5mm² or even 0.1mm² for some signalling cables, Table 52.3
@Umski 2 ай бұрын
Wow, this is worrying electricians needing to do CPD to work this out - is this not basic stuff covered during formal training? How many are out there that are sticking fingers in the air 😮
@efixx 2 ай бұрын
We've got people watching from every stage of the electrician's journey, some apprentices who'll benefit from this at college, right up to the spark who's been doing it for years and not fully understanding it. 😂
@johnaphone 2 ай бұрын
Most industrial/commercial jobs we do have the cable size specified by the consultant so no calcs required onsite. I personally verify whats specified, for peace of mind and so i don't loose the skill. Most of my colleges, approved electricians, would struggle understanding this video!!
@Umski 2 ай бұрын
@@johnaphone and this is what's worrying! I guess then having repeat training on basics is what's needed - I wouldn't consider it CPD however!
@therealdojj 2 ай бұрын
Ugh boring maths 😕 No fancy things that make things exciting but only comprise 2% of being a spark
@tonywatson1412 2 ай бұрын
eh. ?
@therealdojj 2 ай бұрын
@@tonywatson1412 I used to be a factory spark back in the late 80's early 90's I'm fascinated by all these gadgets that have appeared over the years to make people's lives easier and their day more productive But the actual hard work and maths that you need to do in order to do a good job is not shown and everything thinks we spend all day in perfect conditions playing with expensive toys and billing huge figures for running a few wires The other day I spent 3 hours running a lighting circuit for 3 time and a hallway in a loft, a job that would have taken me 20/30 minutes as a first fix but took 3 hours as my mate, whos house it was, wanted me to explain every single connection and how it linked to the next light/switch/room Anyway, it was hot and itchy and I didn't need to get that way
@efixx 2 ай бұрын
😂 We're trying to please all the people! 👍
@deang5622 2 ай бұрын
It's boring because you can't do it. Didn't pass GCSE or O level Maths in school?
@therealdojj 2 ай бұрын
@@deang5622 I stopped being an industrial spark in 1991...
@mikeedwards7173 2 ай бұрын
Who is the real Joe Robinson. Is he bearded or unbearded ? 😕
@efixx 2 ай бұрын
He's Schroedinger's Joe. He's both bearded and unbearded until you press play...
@stevenwalker8372 2 ай бұрын
Are you catering for diy now , if a spark doesn’t know how to select the right size cable they should get another job 🤷♂️
@x1BULLETfromABOVE1x 2 ай бұрын
It's more for apprentices, someone needs to teach them how to do it and it's nice to always have a video to reference later down the line compared to trying to scribble down notes in class and hoping you got all the correct information
@stevenwalker8372 2 ай бұрын
@@x1BULLETfromABOVE1x nonesense , they learn on site from their employer or qualified workmates , and if college isn’t teaching them to use the book it pointless them going
@montans002 2 ай бұрын
Nooo please don’t do these kinds of videos. Your videos go all over the world and every place has different codes and regulations and rules that govern different awg wire sizes I don’t wanna go to a house because some kid blew himself up because he didn’t size the cable properly. Orr make my job even more of a headache because I couldn’t find some other dumb thing he did in the house. I studied this and worked a lot of years in this trade. This was irresponsible to post I’m gonna have to unsubscribe because of this. 😢
@calmeilles 2 ай бұрын
DLTDHYAOTWO.
@weeniebeastie 2 ай бұрын
I don’t know if you’re being ironic or just daft? These are training guides for people learning the trade.
@callumcurtis15 2 ай бұрын
Trust me if they follow the British standard for cable sizing nothing will blow up / burnd down because the standard is extremely cautious, at the full load rating the correctly sized cable would not even get warm. That being said people should still only undertake work to the local codes/regulations, and be qualified/competent to do so .
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