[chbot] OT: Low profile RCB

[m.beckett at amuri.net]

Folks

It seems there are many commentors whom may not have read
the NZ Wiring regulations ie AS/NZ3000:2007 plus amendments.

Some have
no idea on the subject they are commenting on.....

There is a very good
reason why certain devices are not connected to RCD's, and its
explained.

http://www.electricalforum.co.nz/index.php?action=more_details&id=1336126580&PHPSESSID=cabbf0743c5cf0b7cf75aaca05b4ec2d
[1]

The original designer (ie your electrician) has not completely
thought of the consequences of a single event removing all 3 phases.

He
could have used 3 separate RCD devices as I did in my house.

In the
meantime, might I suggest those that aren't familiar look at the
document, (which I posted the link to
previously).

http://www.med.govt.nz/energysafety/documents/legislation-policy/electricity-act-regulations-codes/standards-and-codes-of-practice/NZECP%2051%202004%20New%20Zealand%20Electrical%20Code%20of%20Practice%20for%20Homeowner%20Occupiers%20Electrical%20Wiring%20Work%20in%20Domestic%20Installations%20%20-%20Published%2027%20July%202004%20.pdf
[2]

Mark

On Tue, 15 Jul 2014 10:03:30 +1200, Volker Kuhlmann wrote:
>
On Tue 15 Jul 2014 08:54:24 NZST +1200, Marshland Engineering wrote:
>

>> 30 ma is 30 ma regardless of how many breakers you have. We have one
3 phase RCD of 30 ma one feeding about 40 CB. We have a 'big' house many
flouresecnt tubes, 1 fridge, 3 freezers, 1 large mill, 2 large lathes, 3
hot water cylinders, 2 heat pumps, dozens of computers, one 4 kw oil
heater, washing machine, tumble drier, and still, I've
>> never had to
find and reset the RCD in the dark (or even the light for that
>>
matter).
> 
> And all those loads were connected downstream of theRCD?
Are you sure?
> 
>> >Seems to work in South Africa when I lived there,
but maybe the laws
>> >of physics were different under apartheid.
>>
>>
Oh yes. Made me laugh.
> 
> Keep laughing, I don't care. You two
smartalecs are welcome to come over
> and do your own measurements on
the 6kW heater I have here. Your
> suggestion of replacing a brand-new
heater here in New Zealand just
> because it doesn't fit your South
African wiring made *me* laugh...
> 
> Volker

 

Links:
------
[1]
http://www.electricalforum.co.nz/index.php?action=more_details|+|amp|+|id=1336126580|+|amp|+|PHPSESSID=cabbf0743c5cf0b7cf75aaca05b4ec2d
[2]
http://www.med.govt.nz/energysafety/documents/legislation-policy/electricity-act-regulations-codes/standards-and-codes-of-practice/NZECP%2051%202004%20New%20Zealand%20Electrical%20Code%20of%20Practice%20for%20Homeowner%20Occupiers%20Electrical%20Wiring%20Work%20in%20Domestic%20Installations%20%20-%20Published%2027%20July%202004%20.pdf
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