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Posted By Topic: Wiring in an oven

Feb 15 2018 08:50

Hello. I purchased a second hand oven as my one is not longer working.

The new oven does not have a power cable.
I was wondering how do I wire up my power cable from my old oven onto my new one?

Red (old) to Red (new)
Black (old) to Black (new)
Green (old) to Green (new)
do not worry about the white wires? Although on the yellow picture it shows the two left (red and white) being the wired one.

Any help would be appreciated

Feb 15 2018 08:58

Links if it makes it easier

Feb 15 2018 08:58

Some ovens and Ranges are set up so they can operate on two Phases and also the load of different ovens can vary a lot, The flex on the Oven in the picture does not look that big, I would suggest you get a Electrician to take a look.


Feb 15 2018 09:05

The old oven is not wired into the wall but into a plug that is why I am hoping I can just switch it over.

Feb 15 2018 09:13

There is no problem swapping the flex from one to the other Assuming the replacement is a similar load , its not possible to tell that from your pictures and if you don\'t know then once again it would be best to get someone who can confirm that for you .


Feb 15 2018 09:28

Any recommendations around the Manurewa area? That you know of?

Feb 15 2018 16:27

The old oven looks as though someone misplaced the link and consequently transfered all the tails to the second contact. I wonder if the screws are long enough and all five phase lugs are properly secured.

The new oven looks straight forward enough. Get a professional in. It\'ll take 15 minutes, tops.

Feb 19 2018 02:15

I appears that the home owner is allow to fix this kind of appliance.

I wasn\'t sure.

\"If you are the owner of a domestic electrical appliance, cord
set, or extension lead that is for your own private use, then
you are permitted to carry out repairs and maintenance on
that appliance, cord set or extension lead in accordance with
this Code. This Code applies to single-phase appliances or
plugs, sockets or appliance connectors (fittings) that are
labelled in the range from 220 volts (V) to 250 V.\"

Feb 19 2018 09:31

Those references are no longer valid, which shows that the ECP is well out of date.
It\'s now Section 80 of the Act (not 111), and reg 79 of ESRs 2010 (not reg 17 of 1997 Regs).

But yes it has been OK to maintain / repair your own - or near relatives\' - domestic appliances for a long time.

However the work must be done in a dsafe & competent maner - so if you don\'y know what you\'re doing your are not allowed to dfo it.
And the work must be tested by a registered person beforte being connected to a power supply.
So since this OP clearly doesn\'t know how to proceed, and needs to get someone with a practising licence in anyway, best option must be to let the licenced person do the work.

Feb 20 2018 07:20

I need to do some research but I was under the understanding that some jobs didn\'t require inspection by and inspector?

e.g. Extension leads?

Feb 20 2018 08:47

Being second hand,possibly classed as an appliance, it would need to have a safety certification issued before being put in to use

Feb 20 2018 09:52

to clarify the requirements:

ESR 80 requires used appliances to be electrically safe when sold or supplied. But it does not require any sort of certificate.

The fitting of a lead to a range under the section 80 exemption is covered by ESR 79; which
1 requires that ECP 50 be followed
2 allows just about any work on low volatge appliances.

However Section 80 itself imposes some significant restrictions; including that
e) the work is carried out in a competent & safe manner; and
g) the work is before connection to a power supply, tested and certified, in accordance with regulations, by a registered person who holds a current practising licence that authorises that person to test and certify prescribed electrical work\".

Back to ESRs to see what the requirements are for testing 8 certifying PEW on appliances. ESR 90 covers this, the applicable requirement being test i.a.w ECP 50. No certification requirement.

So after the work on the appliance is done, it has to be checked by a suitably-licenced person.

This is different from the rules for homeowners doing PEW on their installation; where only some types of work have to be tested, certified, and connected by an Inspector.

Feb 20 2018 10:29

In the Act, section 80(2):
Subsection (1)(g) applies only if required by regulations.

Is there a regulation that requires it?

Feb 20 2018 12:08

ESR 79 (1) (indirectly via the testing requirements of ECP 50) and ESR 90.

Feb 20 2018 12:24

It does seem a bit odd that a homeowner can (for example) replace a switch or a socket without any involvement of a licenced person, yet any small repair to an appliance is required to be checked by a licenced person.
But that\'s what the Act says.


Feb 21 2018 00:34

For the home owner repair where do extension leads sit?

Nether installation wiring or an appliance?

Do they need and inspection by and inspector or electrician?

Feb 21 2018 08:27

The answer is not as simple as it might seem.

the assembly or repair of an extension cord is not listed in ESR 57 as work a homeowner may do under the section 79 exemption. It\'s this work - or rather only some of it - that requires an Inspector to test, certify, and connect. Not surprising that ext cordfs aren\'t covered by this ESR, since it\'s in Part 5 \"safety of installations\"; and deals with work on the installation the homeowner owns & occupies.

But it\'s also not covered by ESR 79, which deals only with \"appliances\" as the only work permitted under the Section 80 exemption. Since \"appliance\" is a term defined in the Act, and ext cord is not included, ext cords, EPODs, & similar aren\'t covered here either.

The only possible conclusion is that such work is not permitted under either exemption; and must instead be done by either a licenced person, a trainee, or a person under supervision. It seems unlikely that that was the intended outcome, but it\'s what the combination of Act & ESRs says.


Feb 21 2018 09:48

and yet ECP50 has a section specifically for extension cords...

Feb 21 2018 10:36

I\'ve given up expecting Acts & Regs to make complete sense. Especially when they are not written by people with any understanding of the subject matter. It\'s not a matter of whether there are glitches; it\'s about how many and how big. Add Standards & ECPs, - written by different people again, and published at different times and things are bound not to line up completely.

EG ECP 50 was written in 2004, to line up with 1997 Regs. Can\'t expect it to line up with ESRs 2010. So the question is whether the designers of ESRs intended to leave ext cords out, or whether it happened by accident - or whether there\'s another explanation.

Sometimes it\'s our failure to consider all aspects, rather than the writers\' failure to line things up. Ext cords would be an example - check Schedule 1 of ESRs, where fitting plugs and cord connectors to a suitable flex is not PEW, so anyone can do it - no licence or exemption needed. And no requirement to follow the ECP either.

A repair to an EPOD would still fall between the rules, being PEW that no ESR authorises the owner to do.

Feb 21 2018 14:05


I don\'t believe that when ECP50 and ECP51 were invented that the homeowner was expected the read the ACT or regulations.

I guess the ECP\'s need updating..............

Feb 21 2018 16:43

Most NZ law works on the basis that ignorance is no excuse; we are all expected to know of , and abide by, all sorts of Acts & Regulations.

Nice that the ECPs that are aimed at homeowner / appliance owner electrical work include quotes from relevant law. Just happens to be out of date.


Feb 28 2018 21:17

\"Most NZ law works on the basis that ignorance is no excuse; we are all expected to know of , and abide by, all sorts of Acts & Regulations.\"

This ofcause is true but.....

When I went for my drivers licence I studied the road code. Its assumed that the road code is compliant with any Acts and regulations and therefore there is no requirement to read the acts or regulations to get a drivers licence or even to drive.

I believe that this was also the intent of ECP 50 and 51?

Mar 01 2018 09:57

The road code is a bit different. The Act governing driving basically says that the Authority has the power to make Rules, which are published in the Road Code. In effect, the Road Code is the equivalent of the ESRs in that it is the definitive document for what you must and must not do.

Mar 01 2018 09:59

Did he/she ever get the stove installed?