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JamieP

When completing a periodic inspection do I need to confirm everything is present in the dossier? Or as long as items 37 and 38 of table 2 are present, is that enough to pass?

JamieP

Yes, correct, I did mean that

Thanks, was my thoughts also

JamieP

Thank you, exactly as I believed

JamieP

I did consider whether the box should or shouldn't be in the zone, more infact further enough from the zone as to prevent touching the two different earthing systems at the same time Without moving the box I think the better option is to ensure a bonding conductor be connected to the box and believe...

JamieP

I have a stainless steel control cabinet located in the equipotential zone for a stunner. This cabinet has a supply via the installation MEN earthing system and is earthed via the PEC of this final subcircuit. Should this cabinet also be connected to the equipotential bonding system? It doesn't seem...

JamieP

I have been told by another inspector that all the conductors of the equipotential bonding network need to be black. I disagree and believe green yellow should be used in accordance with 3.4.3 and that black should be reserved for metalwork being used as an electrode and I assume this is to do with ...

JamieP

I have been supplied with a 230V/550V transformer to supply the electrodes for the neck and nose in a beef box stunner. The unit complies with AS/NZS61558.1 4.5 indicates compliance with table 2, 2 of table 2 says is in compliance with AS/NZS61558.2.4 Table 2 references clause 2.1.2 for this If I lo...

JamieP

Do I need to use a tag with this wording to be compliant? WARNING: ‘MAIN ELECTRICAL EARTHING CONDUCTOR—DO NOT DISCONNECT’ I understand no one would fail someone with one of the green "earthing conductor, do not disconnect" But technically and to truly comply must I meet the wording of the clause I b...

JamieP

I'd suggest a different electrician that is responsive. The person doing the installing and signing it off will want to be involved in the design process. Especially being mains work and high risk because an inspector will also be involved Maybe you could consult an inspector if the electrician is u...

JamieP

Firstly, lets leave the debate around whether or not earthing is not require as I can't be bothered going in depth of the situation My question is, is it acceptable to use a standard lug for this process? Although this is common practice and I have done so in the past I have just come across "BI-MET...

JamieP

This is also my thought Doug

JamieP

Am I right in saying that an inverter must comply with AS/NZS 4763 to be used in a connectable installation? I've had some debate around 3.4.4.4 lately To me it reads as must comply with AS/NZS 4763 and be either an isolated or RCD protected type under this standard But I've have others argue it's c...

JamieP

Thank you Alec, I think that clears it all up for me

Appreciate your contributions to our industry and for the patience!

JamieP

Understood. Thank you Alec. Would you mind explaining maybe what the point in 2.1.2 (b) and 2.4.6.2 is then? I'm not sure if I'm not following or it's going over my head but isn't the lifeguard "other electrical equipment" and 2.4.6.2 would say that I need to supply it from an RCD protected outlet? ...

JamieP

Understood

But the lead and Lifeguard unit must fall under 3012, correct?

Does it not matter if that plugs into an RCD protected socket outlet or not? Or am I just getting confused

JamieP

Thanks team Maybe I'm best to break it down a bit more Correct, construction site, correct cited version, using as a means of being electrically safe We have provided a Jackson lifeguard unit, the unit is stand alone and a lead plugs directly into it. We have also supplies a 32A lead with it. Due to...

JamieP

I need to install a socket outlet for a Lifeguard unit supplied via 32A lead. Similar to this https://jackson.co.nz/jackson_electrical/lifeguard-16/ Do these units count as PSOAs? I was going to apply 2.1.2 (b) as the socket I install will be part of the permanent installation and remain after and t...

JamieP

Never been audited in my time as an electrician (3 years)

JamieP

I'm not 100% sure what it was but it was infeed ingredients for making mozz cheese

Run lengths varied from 500mm to maybe 2000mm

JamieP

If we are talking about your usual stranded conductors

I personally don't twist anything in clamp terminals, such as MCBs etcetc

For screw terminals I twist and if possible to fill the gap nicely will fold as well otherwise just twisted

JamieP

(3) A person who inspects high-risk prescribed electrical work must undertake whatever tests, visual inspection, or other actions are necessary to satisfy the person that— (a) that work has been done in accordance with these regulations; and (b) the installation or part installation on which that wo...

JamieP

Awesome, just grabbed it, thank you!

JamieP

Upon actually looking at the clause I agree with above

JamieP

As soon as the WoF has lapsed I'd say it can no longer be supplied so should be unplugged before lapsing and not replugged in until a current EWoF has been issued. If it remains plugged in when it lapses I'd say it being supplied without a valid EWoF and is in breach of ESR76 Power isn't only suppli...

JamieP

Oh awesome, be curious to take a look, can't help you with getting it available though

JamieP

I've seen a few mentions of this but does anyone know the status and when to expect the new version?

Also very interested in a link to the DR if anyone has one, would love to have a look

JamieP

Interesting Just to be clear I was specifically curious about insulating ducts, much like iPlex and Marley's range Just for clarification, would an HD duct be suitable as a cat A system? Or would the cables inside still be regarded as there own wiring system and be classed as unenclosed underground ...

JamieP

Does the term conduit/conduits include underground cable ducts? I often hear people referencing ducts as different installation rules and they are often installed by landscaping contractors. Many people don't seem worried but as far as I'm aware they should meet all the relevant requirements of cond...

JamieP

Does fibre need to be segregated? I understand it's glass and doesn't pose the same risks but in terms of 3000 does it still need to follow the same rules? I'd assume it's classes as telecommunications

JamieP

Just curious what defines telecommunications in regards to segregation. I've seen a definition in the TCF guilines as: "Telecommunication is the conveyance by electromagnetic means from one device to another of any encrypted or non- encrypted sign, signal, impulse, writing, image, sound, instruction...

JamieP

It says minimum those sizes for each type. You can exceed those ratings.

3.2.2 is also the relevant clause for the inlet

JamieP

Just curious where the line gets drawn for maintained in original condition and not having to use either MIs or comply with current 3000. For example I often see the switchboard replacement debate of a main switch being too high. My personal though is because the main switch has simply been replaced...

JamieP

Understood and noted. Very much look forward to reading the new version and improving how I can. However, just curious what I'm missing in regards to above, because I test EC with a trailing lead and I have my N disconnected this to be should confirm EC value but also E polarity is correct because I...

JamieP

I've just had a look at 2018 and I think I'm actually pretty good I think I was just always confused by polarity vs correct circuit connections but seeing them combined and reading through the lastest version it seems a bit more clearer of what's needed to be achieved and I think I pretty much cover...

JamieP

I pretty much do the exact same as above, I e just never really understood correct circuit connections Confirm EC with N disconnected Proves E in right place IR test A to E then N to E just because I just find this faster than linking them I also do A to N if possible, at 500V if certain nothing con...

JamieP

Socket outlets are used for many purposes The point in the exception is exactly as it says, the items plugged into it must be fixed or stationary, such as a wall oven (under 10A), lighting, garage door unit, heaters, alarms etcetc the list goes on and on but that's some easy examples, the socket out...

JamieP

Just curious what methods people use to confirm this

JamieP

So issuing certification is not a problem but being the responsible person means we also have obligations to provide copies. Most the work is forwarded onto us via our manager and is for large industrial sites. Sometimes the work also comes from engineering or another electrician. So I'm just wonder...

JamieP

Makes sense why I couldn't find anything to back it up

I guess industry just accepts that it is an inspectors role?

JamieP

Just wondering if electricians can assess PEW or not

JamieP

After issuing and RoI we have 20 working days to provide a copy

Does this copy get given to the person that contracted for the inspection? Eg the electrician who did the CoC, or is this part of the overall contract of work and should be given to the person who contracted the electrician?

JamieP

Reg 67 (1)(e) "the type of supply system that the installation or part installation is safe
to connect to"

Can someone confirm what this actually wants? Is simply putting MEN supply enough? Does it want TN-C-S? Does it want voltage and Hz values?

Just wondering what's actually sufficient

JamieP

Thank you, I just wanted to confirm So in a complete legal order per regulations it should go as follows for general risk work CoC issued or sighted Connection to supply (starts 20 working day timer to issue ESC) Work completed (starts 20 day timer to provide copy of CoC) Provide copy of CoC before ...

JamieP

Just a bit further going over this So am I correct in saying CoC must be issued before connection? (ESR 73A as discussed above) The work then being completed starts a timer and we have 20 days to provide a copy to the person who contracted the work (occupier/owner if they aren't available) (ESR73E) ...

JamieP

Had this question asked and at first thought no as the supply lead would have to have a minimum of 15A but apon further investigation I can't see any reason why not, aside from seemingly being a bad idea If it was still supplied with a compliant 15A cord set and such cord set fitted the 10A inlet (l...

JamieP

Thanks Alec, thought that may be the case

Interesting about the 2.5mm size as well!

JamieP

Are there any specific volt drop limits for connectable installations? Or is it counted in the total limits prescribed in 3000? Do we need to make allowence so that VD never exceeds those limits when designing? This could be very difficult when ever time they connect the VD up to that point could be...

JamieP

Can any underground system be made a Cat C system? Or only those specified in Table 3.5?

JamieP

Can medium duty conduit be run underground (without the concrete encasing that makes it a Cat A system) as a Cat B system?

I can only see an option for corrugated or flexible

JamieP

Thanks Alec, very good to know

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