Construction of Twin and Earth Cables - Doncaster Cables
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- Опубліковано 11 лип 2020
- The basic construction of twin and earth cable (twin and CPC). Name the parts and conductors line, neutral and CPC, what does PVC stand for? As well as a massive thank to Doncaster Cables for kindly donating 100’s of metres of cable to the learners of Tresham College
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2 and 3.
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hi gaz in ireland we switch to this back in 2017 the cpc to be insulated green/yellow and to also be the same csa as the current carrying conductors would you think the uk may do something like this in the future .
Gavin Geaney fantastic 👍
How are the conductors arranged in the cable? I think that Line should be in the middle if they are all sleeved and of the same cross-sectional area. It would reduce the electrocution hazard from a damaged cable, all other things being equal.
dalriada842 the t&e is still the same configuration and looks a lot better when terminated
Great Video. Please make more like this. !!
Nice explanation of PVC cables :)
Great content!!! I just found you channel a looks great! I’ll be doing my level 3 this year (part-time) so I’ll be getting all my extra help online with channels like yours! Keep up the good work man.
2:13 love the dance moves Gaz 😆😆😆
Students sometimes when designing a circuit a 4mm T+E cable does not have a big enough CPC as it Is sized at only 1.5mm.
The way around this is to use a 3 core and earth utilising the extra core as a CPC, creating a CPC of approximately 5.5mm.
Remember to sleeve and identify the extra core as a CPC.
the CPC has to comply with thermal constraints so as to prove that it will not be damaged during an earth fault event, not a rcd/rcbo event but a full fat mcb/bs 88 earth fault resulting in a potential current (If) of several hundreds of amps,maybe thousands?lasting several tenths of a second up to 5 seconds for fixed equipment. Don't worry once you learn about the design stuff,it's a doddle.👌
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70 degrees cable are almost not used anymore in Denmark. Only 90. (Bigger load) Regards from DK.🇩🇰
So what about the equipment connected to the cables?
Simon Aragon Normaly 60,70,90 degress.. But theese are calulatet a different Way regarding to loads.. hard for me to discribe in english. Danish No problem.😅