18th edition draft now available for comment

[leeroy201986]

https://standardsdevelopment.bsigroup.com/projects/45ff73619910dcfa83208ba39773f4df

 

[flameport]

5 days after it claimed to be initially available and wasn't, and now this:



What a total shambles.
If this is typical of the 18th edition, we are all doomed.

 

[securespark]

Just logged on and browsed OK...

 

[stillp]

Or you can go to http://electrical.theiet.org/wiring...ring-regulations/dpc/index.cfm?origin=adestra

 

[AndyPRK]

SO what's new then ?

 

[securespark]

They don't make it that easy to find out.

I guess one of the things that will be expanded upon is EV supplies.

Energy efficiency is getting a look in too.

 

[ban-all-sheds]

Can people suggest their own amendments, or only comment on ones proposed?

 

[securespark]

Here are a few of the changes:

Cables now have to be adequately supported against premature collapse everywhere, not just escape routes.

Buried SELV cables no longer need an earthed armour.

Chap 53 completely revised.

Section 534 completely revised.

Chap 54 - regs about inserting a switching device in a protective conductor where installation is supplied from more than one source.

543.33.101 & 102. (either have one earthing system connected or the other but not both)

Part 6 completely restructured.

Section 730 - new section covering electrical shore supplies - most regs concerning marinas will be relevant here.

Section 753 completely revised.

Part 8 - energy efficiency.

 

[DetlefSchmitz]

Can people suggest their own amendments, or only comment on ones proposed?

What do you think?

 

[mattylad]

Chap 54 - regs about inserting a switching device in a protective conductor where installation is supplied from more than one source.

I cannot get access to the draft, are you able to expand on this please?
Cheers.

 

[333rocky333]

I cannot get access to the draft, are you able to expand on this please?
Cheers.

Anyone can register free then you can see it

I noticed they have clarified that pipes entering a building with an insulating piece near the entrance dont need bonding.

No more labeled non rcd sockets.

All domestic lighting circuits rcd protected

I may have read it wrong but I think it suggests an earth rod in addition to a TNS system

 

[Spark123]

542.1.201, installations to have an earth electrode to supplement any suppliers earthing facility.

 

[John D v2.0]

So sounds like they no longer consider the supplier's earth reliable enough to trip an RCD (is that with the rise in plastic services?) Presumably as it's a potential single point of failure, they want a rod as backup.
How does that work in installations half way up a block of flats?

 

[Spark123]

I don't think it is for RCDs, more to do with limiting touch voltages in the event of a failure of the suppliers earth.

 

[Spark123]

For what it's worth we may as well do away with the suppliers earth and go TT!