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

Topic Options
Rate This Topic
#134465 - 11/11/02 10:14 PM RCD's connections
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Please tell me, how would a switch-board mounted RCD or RCBO, be hooked up if you where connecting it up?.
Over here, we use a segregated Neutral busbar, for all of the load side Neutral conductors and the Lineside are connected to the Main Neutral Bus.
Your input please-
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin
Top
Test Equipment:
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
#134466 - 11/11/02 10:57 PM Re: RCD's connections
C-H Offline
Member
Registered: 09/17/02
Posts: 1497
Loc: Stockholm, Sweden
Cut-and-paste from the instructions:



Or did you mean the other way around? Feeding an RCD from the switchboard?

[This message has been edited by C-H (edited 11-12-2002).]
Top
#134467 - 11/12/02 07:07 AM Re: RCD's connections
Hutch Offline
Member
Registered: 05/27/02
Posts: 381
Loc: South Oxfordshire, UK
Exactly the same in South Africa. I think I've posted on this before but I cannot find it right now. GFCI required for all sockets and detached garage. Not required for lights, stove, water heater, hence two neutral busbars.
Top
#134468 - 11/12/02 02:40 PM Re: RCD's connections
pauluk Offline
Member
Registered: 08/11/01
Posts: 7520
Loc: Norfolk, England
The same sort of split-neutral-bus panels have become common here as well. The RCD-protected circuit neutrals must be wired separately from the non-protected loads otherwise the breaker will just keep tripping.

A common arrangement here for new installations using TN-S or TN-C-S supply systems is for lighting and a couple of other "essential load" circuits, e.g. freezer/fridge or heating controls, to be on the line side and everything else to be fed through the RCD.

On TT systems that would necessitate the use of two RCDs. It's more usual to just see a single bus panel with a single main RCD on TT systems.
Top
#134469 - 11/18/02 05:32 AM Re: RCD's connections
Texas_Ranger Offline
Member
Registered: 12/17/01
Posts: 2391
Loc: Vienna, Austria
Simple thing in Austria: Main neutral directly to GFI/RCD, then wire links to 2pole breakers. With a 3ph setup (probably) 1 ph loads as described, neutral bus bar for 3 ph loads. If the panel is cheap (single pole breakers), neutral goes directly to the RCD, then to a neutral busbar.
Top
#134470 - 11/23/02 08:46 PM Re: RCD's connections
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Thanks for your replies, there guys,
the new Wiring rules(referenced to Australia), require all circuits, exceptions
are Ranges and Water Heaters, to be protected by a 30mA RCD,exceptions are because of the leakage currents associated with these loads.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin
Top

Member Spotlight
Member Since: 01/22/05
Posts: 5316
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 54 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 51
HotLine1 43
gfretwell 17
Trumpy 16
Ruben Rocha 13
 
Newest Members
clee512, Jdscott2005, FAIZAN, Regitest2, sureshazhagai

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals