ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

ECN Shout Chat
Top Posters(30 Days)
Admin 16
Recent Posts
Another Forum Update
by Admin. 03/22/17 03:04 PM
Dining room plugs
by watersparkfalls. 03/21/17 10:31 PM
TRUE POWER
by jraef. 03/21/17 09:13 PM
WEG CFW-11 Frequency Inverter
by jraef. 03/21/17 08:50 PM
fuse rejectors
by HotLine1. 03/20/17 08:14 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,134 Are you busy
165,891 Re: Forum
160,444 Need opinion
Who's Online Now
1 registered members (mbhydro), 71 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#138417 - 09/06/03 12:14 PM Regulation 607 of BS.7671  
Hutch  Offline
Member
Joined: May 2002
Posts: 381
South Oxfordshire, UK
In looking through MK Electric’s online catalogue I came across the remark that certain outlets are “… fitted with two earth terminals to provide a double earth facility for use when installations are to comply with Regulation 607 of BS.7671, IEE Wiring Regulations”.

In what kind of situation is this regulation applied and how is the earthing system wired?


Test Equipment:
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement

#138418 - 09/07/03 05:45 AM Re: Regulation 607 of BS.7671  
PaulCornwall  Offline
Member
Joined: Jun 2003
Posts: 112
England
As far as i am aware its for outlets that supply computers,

Some else might throw more light on it, but in large office situations you run a parallel earth to the outlets supplying the PCs.

This is i think because the PCs have a large earth leakage..


#138419 - 09/07/03 08:28 AM Re: Regulation 607 of BS.7671  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
Yes, the double earthing is commonly specified for circuits feeding multiple computer systems.

No apologies for providing yet another link to the very useful TLC-Direct on-line brief guide:
http://www.tlc-direct.co.uk/Book/7.8.2.htm


#138420 - 09/07/03 02:17 PM Re: Regulation 607 of BS.7671  
lyledunn  Offline
Member
Joined: Jun 2002
Posts: 159
N.Ireland
Paul,
Some information on your link is now a little dated. Electricity Supply Regs have now been replaced with Electricity Safety Quality and Continuity Regs.
Also, caveat of 25% is no longer a requirement of bs 7671 2001 although it is a useful guide.


regards

lyle dunn


Member Spotlight
HCE727
HCE727
Delaware County, PA, USA
Posts: 186
Joined: November 2005
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.014s Queries: 14 (0.002s) Memory: 0.7572 MB (Peak: 0.8910 MB) Zlib enabled. Server Time: 2017-03-23 00:25:03 UTC