At 11:44 - PVC is **always** a thermoplastic polymer; it can be reshaped when heated and melt if it is overheated. XLPE is a thermosetting polymer; once the original resin used to create it has cured, it forms strong cross-linkages (hence XLPE is cross-linked polyethylene) and does not melt. There is no such thing as thermosetting PVC.
By connecting an earth wire to the gland. The generic way to do this is to attach a crimp eye to the earth wire and then use a nut and bolt to connect it to the "banjo" that comes with the gland. Some box manufacturers provide earthing plates designed specifically for their enclosures which can provide a neater solution.
Gary, As a qualified electrician in New Zealand, Your description of making up a single phase cable with them terrible European colours, makes no sense. Surely black would be the best colour for the neutral? It has backward compatibility, this sounds like a nightmare waiting to happen, irregardless of "people" actually bothering to identify their conductors during the installation. Sure this is an EU thing, but they could not have chosen the three worst colours that are hard to pick up in poor lighting conditions (which is where electricians normally work under break-down conditions). At least we stayed with Red, White and Blue for the fixed cables and the flexible cables use Brown, Grey, Black on 3 phase stuff, obviously we still use a Green/Yellow CPC. Thanks for the great videos though, even after 30+ years in the trade, I'm still learning stuff from these.
No that is not the way. Remember: L1: Red(old) Brown(new) Line(if 1ph) L2: Yellow(old) Black(new) PE(if 1ph) L3: Blue(old) Grey(new) Neutral(if 1ph) N: Blk(old) Ble(new) For Decades, the L2 Conductor is always used for PE. Why? Due to the fact it was Yellow L2 AND Blue L3(appropriated Neutral those times)
I have worked in the commercial/industrial heating trade for 14 years here in the UK and I’m currently on my L2 electricians course. I held my license for plumbing, gas and electrical in the US and for the life of me I cannot figure out why the UK adopted the EU colour coding for wires. Red and black are so easily discernible in low light conditions. In the US we used black as the neutral and white as the line which is even easier. I’m pretty sure someone got paid in a big way to make these decisions and I’m pretty sure they have never worked in the trades in their life.
Another excellent video with a lot of explanation. Thank you.
At 11:44 - PVC is **always** a thermoplastic polymer; it can be reshaped when heated and melt if it is overheated. XLPE is a thermosetting polymer; once the original resin used to create it has cured, it forms strong cross-linkages (hence XLPE is cross-linked polyethylene) and does not melt. There is no such thing as thermosetting PVC.
The old system thanks am a 70s kid
If uses 4 core cable connecting it to PVC terminal box how do you protest your cable or self
By connecting an earth wire to the gland.
The generic way to do this is to attach a crimp eye to the earth wire and then use a nut and bolt to connect it to the "banjo" that comes with the gland. Some box manufacturers provide earthing plates designed specifically for their enclosures which can provide a neater solution.
Gary,
As a qualified electrician in New Zealand,
Your description of making up a single phase cable with them terrible European colours, makes no sense.
Surely black would be the best colour for the neutral?
It has backward compatibility, this sounds like a nightmare waiting to happen, irregardless of "people" actually bothering to identify their conductors during the installation.
Sure this is an EU thing, but they could not have chosen the three worst colours that are hard to pick up in poor lighting conditions (which is where electricians normally work under break-down conditions).
At least we stayed with Red, White and Blue for the fixed cables and the flexible cables use Brown, Grey, Black on 3 phase stuff, obviously we still use a Green/Yellow CPC.
Thanks for the great videos though, even after 30+ years in the trade, I'm still learning stuff from these.
No that is not the way. Remember:
L1: Red(old) Brown(new) Line(if 1ph)
L2: Yellow(old) Black(new) PE(if 1ph)
L3: Blue(old) Grey(new) Neutral(if 1ph)
N: Blk(old) Ble(new)
For Decades, the L2 Conductor is always used for PE. Why?
Due to the fact it was Yellow L2 AND Blue L3(appropriated Neutral those times)
The EU colours are just nonsense, one of the dumbest changes to happen in the UK
Gary... The cores are cross linked polyethylene.. you kept calling it thermosetting PVC. The pvc cable has been removed from BbS
A small company I worked for in the early 2000s some spark did that. Well I dont think he was.
Electrician’s using a grocers apostrofee in they’re tumnale?! Ssssshocking! ⚡️🤪
I have worked in the commercial/industrial heating trade for 14 years here in the UK and I’m currently on my L2 electricians course. I held my license for plumbing, gas and electrical in the US and for the life of me I cannot figure out why the UK adopted the EU colour coding for wires. Red and black are so easily discernible in low light conditions. In the US we used black as the neutral and white as the line which is even easier. I’m pretty sure someone got paid in a big way to make these decisions and I’m pretty sure they have never worked in the trades in their life.