Maximum Clipping Distance for Twin and Earth Cable
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- Опубликовано: 31 май 2024
- In this video we use BS7671 On-Site Guide to workout the maximum distance between supports for twin and earth cables in accessible positions. Using Appendix D table D1 in the On-Site Guide we can find the clipping distances both on the horizontal and vertical plane for thermoplastic flat profile cables something I call twin and CPC cables. The video includes a full demonstration on how to calculate the maximum distances of the cable supports.
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== 🕐 Time Stamps - Cut to the action 🕕 ==
00:00 - Maximum clipping distances
00:44 - Appendix D table D1
01:12 - Accessible positions
01:43 - Cable diameter in mm
02:30 - Flat cables major axis
03:11 - On-Site Guide
04:00 - Measuring the cable
04:39 - Thermosetting or thermoplastic
05:34 - Maximum clipping distance for 1.0 mm2 T & E
06:14 - Bigger cables more clips?
07:14 - Measuring 2.5 mm2 cable
07:52 - Maximum clipping distance for 2.5 mm2 T & E
08:45 - Measuring 6.0 mm2 cable
09:25 - Premature collapsing of the wiring system
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E.
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What a great video Gaz and the camera work was amazing as well 😉
I'm currently working on a re-fit which was last rewired in the mid 70's, the previous wiring before then, in lead sheathing from the 1930's was all fixed up with turnbuckle clips. Can't help but feel we went backwards to then go forward again about 90 years later.
Great video gaz
Thanks 👍🏻
I was alway tort the clips should be every 8in on wooden surface and every 6in on brick/ concrete.
Fantastic video Gaz as always 👍
Taught*
Hey guys avid viewer of the electrical community on RUclips including the new effix channel, but what I was curious about is - if you are running cable under floor board how essential is it to clip that cable say when access is limited? And is it beneficial to leave unclipped in the event you need to pull the wire after? Thanks!
Can you please refer me to the documentation for the information you provided at 10.15? Thank you
Oh your back in the room now 😂
😀👍🏻
1, nice taught me stuff I didn't know
2, someone put me on to 'transparent post it notes' on amazon that would be perfect for being able to draw in the OSG without marking it.
3, ta 🙂
Thanks for the great comment 👍🏻
I've Ways thought that the regs and on-site guide,etc, has it wrong. If students make notes to them to make it easier to understand. Doesn't that mean they could have made it better to start off with. They want to follow them but we need another language to read them.
Great point 👍🏻
Good. Accessible space? Wonder what consider crawel area in roof space or under floorboards..
You make a great point 🦾
Hi Gaz , new to electrical installation...Regs..
Do you need metal cable nowadays 2022 or can you use plastic c/clips .. ( great videos 💪
Check the code *
So if you fix a cable along a joist, and then plasterboard over them let's say in a ceiling situation, these guidelines are not applicable?
If It’s not accessible then no but if you haven’t got boards up then best practice too do it
Just stick to 250mm apart? That's what I tend to do with T&E
I thought there was a new rule that cables must be clipped with metal ties not plastic? Do cables need to be protected with metal covers?
Did you get to the end of the video..?
@@GSHElectrical Yes but it should not be a judgment call on an individual whether or not to provide metal clips, I thought it was a mandatory requirement therefore those traditional plastic clips with nails built-in should not be used. Who can say what will collapse in a fire situation and expose cables or if those cables then become a hazard to Firefighters or those trying to exit a building? If cables become loose or hang that individual would be negligent so why take the risk, just use metal clips in all instances.