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Most, if not all, recessed downlights I install regardless of being IC-F or IC-4 rating do not permit being installed anywhere near loose fill insulation Usually I just scoop it out and clear at least 50mm around the downlight cutout on accordance with Figure 4.7 C I've just read 4.5.2.3.3 "(e) Wher...

Sorry, still not 100% in what the 2 different situations each clause are trying to get at

It's more 3.9.4.3 that's throwing me off

Hey that's not a bad idea at all, good thinking, let's people know you've acknowledged there response etc

The first says it's in regards to wiring systems near building surfaces and says protect via 3.9.4.4 if "50 mm from the surface of a wall, floor, ceiling or roof" The second is under wall or roof lining and says protect via 3.9.4.4 "within 50 mm from the face of the supporting member to which the li...

Well I came here to make an inquiry on this very requirement. Moved house just before the lockdown and found that there are 2x Main Switches (both labelled as such) in the house. Me thinks an email to the contactor is in order. Provided this was done under current rules, wouldn't 2.3.3.4 (b) call f...

Ah, ok right, I see what you mean, thank you!

Yeah, I was just curious what people thought for the sake of discussion but sound like everyone seems to agree

Basically what I'm wanting to know is do you consider a marking on the cable (such as a heat shrink label) directly by the terminal sufficient to meet this clause or must the actual terminal be marked?

I don't understand what you mean sorry Alec

The short form x2? But the resulting 63A is less the 32A x2

"2.9.5.4 Terminals of switchboard equipment Terminals of bars, links, circuit-breakers, fuses and other electrical equipment mounted on a switchboard shall be marked or arranged to identify the corresponding active and neutral connection for each circuit." I understand arrangement can be used but wh...

I see, so the Type S RCD could provide an option that can be provided to a whole installation where as AFDDs are more suited to individual subcircuits

Does anyone know if this clause comes as an AS/NZS thing or is it taken from the IEC standard that 3000 is based on?

"1.4.2 Accessible, readily Capable of being reached quickly and without climbing over or removing obstructions, mounting upon a chair, or using a movable ladder, and in any case not more than 2.0 m above the ground, floor or platform." I know it's something that you'd probably never get pulled up on...

So I understand this solution is for fire protection mainly and is not one that is commonly used by the sounds of it. Anyone have any idea how they stack up vs AFDDs? Is one better suited for the purpose? Would using them in conjunction provide even better protection or would one effectively make th...

I see both these have been changed to actually work properly in the 2018 version

"Discrimination on overload and instantaneous operation may be deemed to be provided when C1 ≥ 2 × C2, e.g. C1 curve 63 A with C2 curve 32 A (see Figures 2.11 and 2.12.)" This says a 63A with a 32A but using the method of calculation 2*32=64 so a 63A MCB is not ≥ a 32A MCB "(A) the overload setting ...

"2.6.2.3 Protection against initiation of fire Although not a mandatory requirement of this Standard, to provide additional protection against the initiation of fire caused by current leakage across insulation, a Type S RCD with a rated residual current in the range 100 mA to 300 mA may be used as a...

Understood, thank you

I see, makes sense, cheers

Interesting

I can understand how those requirements may not be met in separate cables but isn't that more due to the cable runs could end up at different lengths/routes etc?

If they were in the same cable sheath like Doug suggested would that almost guarantee those conditions be met?

Do they charge anything for such reports? Sounds like they could be super handy!

"2.3.3.2 Number of main switches The number of main switches shall be kept to the minimum practicable to provide for effective operation in an emergency. Domestic electrical installations, including each separate domestic electrical installation forming part of a multiple electrical installation, sh...

Ah, I see

Cheers

I've done this before and is next on my agenda once out of lockdown

Thanks mate

"AS/NZS 3018:2001
Electrical installations - Domestic installations"

Yeah I haven't had much luck tracking down a copy, sounded like it could have some interesting stuff in it

Yeah, I understand all that

I just meant are there any test instruments that aren't overly expensive that you could leave on site to log results etc

Are there any useful tool for measuring max demand in existing installations? I understand you can go around and count everything up and then work it out but you could miss things

Anyone have a copy of this standard? Not available via EWRB but I'd love to have a wee look over it, my curiosity isn't worth dropping the $$$ on it though

Did anyone in NZ ever work to this standard or was it an Australian thing more so?

Let's try this again, figured this user name would make me easier to address