Search found 919 matches
- Fri May 03, 2024 12:08 pm
- Forum: Standards and Legislation
- Topic: ESC and Council Building Inspectors
- Replies: 6
- Views: 1768
Re: ESC and Council Building Inspectors
1st 2 copies of any CoC, RoI, or ESC go to a) the person whom asked for work to be done; and b) the person who issued the cert (who has to keep a copy for 7 years). A number of other 'entities' are entitled to request a copy; including the TLA. They have to make their request to the issuer. For a Co...
- Thu May 02, 2024 2:42 pm
- Forum: Standards and Legislation
- Topic: ESC and Council Building Inspectors
- Replies: 6
- Views: 1768
Re: ESC and Council Building Inspectors
You are not wrong. and (surprise surprise!) EWRB is. As is the meter provider. It's not possible to limit an ESC; it automatically applies to everything that gets connected by the action of connecting. If this is the company i think it is; they have a long history of trying to minimise their liabili...
- Thu May 02, 2024 2:37 pm
- Forum: Standards and Legislation
- Topic: Main Switch Height - BTS
- Replies: 5
- Views: 450
Re: Main Switch Height - BTS
it may be non-compliant 9with a non-mandatory Standard); but there's no way it can be called unsafe.
In fact ESR 25 says that as long as it complies with the cited version it is electrically safe!
Clearly Worksafe has at least one idiot in it's employ.
In fact ESR 25 says that as long as it complies with the cited version it is electrically safe!
Clearly Worksafe has at least one idiot in it's employ.
- Wed May 01, 2024 9:48 am
- Forum: Standards and Legislation
- Topic: Main Switch Height - BTS
- Replies: 5
- Views: 450
Re: Main Switch Height - BTS
Interesting. In the cited edition, App J (Normative) is a "Guide to the arrangement of switchboards, construction wiring, and equipment"; and consists of a single Figure - which doesn't refer to height , or mounting of the switchboard(s) at all. The clause they are referring to is in 2012 edition; w...
- Tue Apr 30, 2024 8:34 am
- Forum: Standards and Legislation
- Topic: Main Switch Height - BTS
- Replies: 5
- Views: 450
Re: Main Switch Height - BTS
If they can't, or won't, provide a specific clause; that's a strong indication that they haven't got a clue. You are correct that ESRs do not require compliance with "3012" when doing work on a construction site [ESR 25]. However when the construction wiring undergoes periodic inspection (every 6 mo...
- Thu Apr 11, 2024 9:38 am
- Forum: Distribution, Networks & Metering
- Topic: Mains cable underneath Berm or register Easement?
- Replies: 1
- Views: 749
Re: Mains cable underneath Berm or register Easement?
Assuming teach dwelling is to be a separate installation: The supply for each (which only becomes "mains" when it crosses the boundary into the property that installation is on) has to be not just a separate cable; but can't share a wiring enclosure (such as conduit or duct). Every Council will have...
- Fri Apr 05, 2024 11:46 am
- Forum: Protective Devices
- Topic: Schneider RCBO Acti9 iC60H, 1P + Ns
- Replies: 2
- Views: 1297
Re: Schneider RCBO Acti9 iC60H, 1P + Ns
Clause (1) of ESR 24 says that "this regulation applies to any standard low voltage RCD that is used in a situation where it is required, by these regulations or by any standard, to be used." Not aware of any ESRs that absolutely require an RCD to be used; but at least two (89 & 89A) list RCD as one...
- Fri Apr 05, 2024 9:20 am
- Forum: Forum User Guidelines
- Topic: Data Lost?
- Replies: 1
- Views: 1411
Data Lost?
Yesterday when i refreshed the screen; i got an error message because the site was off-line.
Today it's back, but with last "new" post being the question about the yellow sticker on some Schneider RCDs, posted 28 March.
The response I gave has been lost.
And presumably everything else since 28/3?
Today it's back, but with last "new" post being the question about the yellow sticker on some Schneider RCDs, posted 28 March.
The response I gave has been lost.
And presumably everything else since 28/3?
- Tue Mar 19, 2024 9:39 am
- Forum: Testing & Verification
- Topic: RCD testing - 180V line A to load N
- Replies: 8
- Views: 3304
Re: RCD testing - 180V line A to load N
Quote from "3017: 2022" 2.2.2 Requirements for specific types of test equipment 2.2.2.1 Voltage indicator Voltage indicators are required to perform the following functions to — (a) confirm that no hazardous voltage is present; and (b) confirm the presence of voltage. Non-contact and single-contact ...
- Mon Mar 18, 2024 2:02 pm
- Forum: Inspection
- Topic: Hi Risk Work-EWRB drawing
- Replies: 5
- Views: 1650
Re: Hi Risk Work-EWRB drawing
I've never understood why so many practitioners willfully avoid the relatively small cost & inconvenience of having an independent pair of eyes.
- Sat Mar 16, 2024 11:39 am
- Forum: Inspection
- Topic: Hi Risk Work-EWRB drawing
- Replies: 5
- Views: 1650
Re: Hi Rsik Work-EWRB drawing
We can only deal with the rules as they have been written. Opinion as to what was intended, or what "should" be classified as HRPEW, are speculation at best, and certainly can't be relied on. The best you can say for the EWRB info is that it's how they are likely to enforce it. Doesn't make it corre...
- Tue Mar 12, 2024 11:14 am
- Forum: Inspection
- Topic: Do regenerate drives needs inspection?
- Replies: 3
- Views: 976
Re: Do regenerate drives needs inspection?
My point was that if it fits the definition of MPGS, then the associated rules apply.
- Tue Mar 12, 2024 10:06 am
- Forum: Testing & Verification
- Topic: RCD testing - 180V line A to load N
- Replies: 8
- Views: 3304
Re: RCD testing - 180V line A to load N
Begins to look like "phantom" voltage; perhaps some capacitive coupling?
Though wouldn't have thought that likely given the short cable runs in a CI.
Though wouldn't have thought that likely given the short cable runs in a CI.
- Mon Mar 11, 2024 10:53 am
- Forum: Testing & Verification
- Topic: RCD testing - 180V line A to load N
- Replies: 8
- Views: 3304
Re: RCD testing - 180V line A to load N
yes Line A to Load N should be 0V; because Load N should have been disconnected from installation N. That's exactly what the test is supposed to confirm; that ALL poles have been disconnected (which is something that none of the fancy operation-time-measuring devices can check for). This reading is ...
- Mon Mar 11, 2024 10:27 am
- Forum: Inspection
- Topic: Do regenerate drives needs inspection?
- Replies: 3
- Views: 976
Re: Do regenerate drives needs inspection?
The answer hinges om item (b) of the definition.
Is the equipment capable of supplying electricity to fittings that are, at same time supplied from another source?
Is the equipment capable of supplying electricity to fittings that are, at same time supplied from another source?
- Tue Mar 05, 2024 10:44 am
- Forum: Selection and Installation of Wiring Systems
- Topic: Alterations to cables with green sheathed or bare earths
- Replies: 6
- Views: 6236
Re: Alterations to cables with green sheathed or bare earths
As an apprentice in the '70s, I never saw 1.0 mm2 3c used for straps, we always sleeved the green(and the black) with red. I don't know exactly when TPS for NZ market started being made with G/Y for the PEC. But would have thought it was after the rule changes that stopped us from re-purposing the P...
- Tue Mar 05, 2024 10:02 am
- Forum: Standards and Legislation
- Topic: Additions/Alterations
- Replies: 11
- Views: 9008
Re: Additions/Alterations
Agree no adds / alts can be protected by SERF. Also that all sockets added must gave RCD protection (not necessarily at origin of circuit) I'm not familiar with that kind of foil; but clearly whoever did this wasn't familiar with the CoP for installing foil near wiring & wiring bear foil. And with a...
- Mon Feb 26, 2024 6:54 am
- Forum: General Electrical Discussions
- Topic: lightning protection system certification
- Replies: 2
- Views: 1721
Re: lightning protection system certification
Look at definition of ;electrical installation";
Remembering to use the one in our Act, not the one in "3000".
Hard to see how a lighting protection system fits into that, so I reckon not PEW
Remembering to use the one in our Act, not the one in "3000".
Hard to see how a lighting protection system fits into that, so I reckon not PEW
- Mon Feb 26, 2024 6:48 am
- Forum: Generators and Solar
- Topic: 5033 Switched Disconnector at PCE
- Replies: 7
- Views: 3440
Re: 5033 Switched Disconnector at PCE
If it doesn't say "individual" or 'separate" then those concepts are not mandated.
Equally "shall have a" doesn't mean a common device can't be used.
Equally "shall have a" doesn't mean a common device can't be used.
- Fri Feb 23, 2024 11:14 am
- Forum: General Electrical Discussions
- Topic: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
- Replies: 13
- Views: 5838
Re: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
Lessons there for all of us. A good example of the 'swiss cheese" theory of how things go wrong First an error of assumption about what was there, followed by failing to test to confirm / reject that assumption; followed by non-compliant work; followed by failure to fully test. I to took all 4 of th...
- Fri Feb 23, 2024 11:04 am
- Forum: Generators and Solar
- Topic: Earth wire type for PV Array
- Replies: 17
- Views: 7987
Re: Earth wire type for PV Array
Certainly errors can be made; or desired outcome not expressed clearly enough. Part of the problem is that Committee members know what they meant, and always think they have said it clearly. (myself included - though not for this one) No writer should ever be the proof-reader for their own stuff. Bu...
- Thu Feb 22, 2024 10:42 am
- Forum: Selection and Installation of Wiring Systems
- Topic: Wiring Systems installed on Ground
- Replies: 3
- Views: 1579
Re: Wiring Systems installed on Ground
As far as Wiring rules are concerned, there's no such thing as "temporary". While this is only intended to be a short-term use of the cable; it has to be installed as if it were going to remain 'forever". Cable must be protected against whatever "external influences" it is likely to be exposed to; a...
- Thu Feb 22, 2024 10:36 am
- Forum: Generators and Solar
- Topic: Earth wire type for PV Array
- Replies: 17
- Views: 7987
Re: Earth wire type for PV Array
Agree 4.3.6 covers "cables" being a subclause of 4.3 "component requirements". As it's the only subclause of 4.3 that deals with "cables"; have to assume it covers ALL cables that are poaret of an array. Which would logically include EBCs as well as the d.c. "PV array c. In 4.6.3.1 "size", sizes are...
- Wed Feb 21, 2024 9:42 am
- Forum: Generators and Solar
- Topic: Earth wire type for PV Array
- Replies: 17
- Views: 7987
Re: Earth wire type for PV Array
Interesting point by Jamie M about the definition of "array"; but while the EBCs are not specifically excluded they are also not specifically included. And when you look at def. of "array cable" it clearly does not include EBCs. There's general rule that when writing Standards; if you mean the same ...
- Tue Feb 20, 2024 3:14 pm
- Forum: Generators and Solar
- Topic: Earth wire type for PV Array
- Replies: 17
- Views: 7987
Re: Earth wire type for PV Array
Perhaps relevant that no particular degree of flexibility of specified; just 'multistranded'. Unlike latest draft of IEC 60364-7-x for transportable structures which calls for bonding conductors to be Class 5 flexible [to the relevant Standard] And unlike where other AS/NZS say flexible... complying...
- Tue Feb 20, 2024 3:02 pm
- Forum: Generators and Solar
- Topic: 5033 Switched Disconnector at PCE
- Replies: 7
- Views: 3440
Re: 5033 Switched Disconnector at PCE
Agree separate devices for each array is preferable.
Just good design.
Just good design.
- Fri Feb 16, 2024 10:58 am
- Forum: Appliances
- Topic: New gazette notice for serene heaters
- Replies: 1
- Views: 1556
Re: New gazette notice for serene heaters
Thanks for posting this
- Tue Feb 13, 2024 9:06 am
- Forum: Generators and Solar
- Topic: Enphase Mirco Inverter System
- Replies: 1
- Views: 1118
Re: Enphase Mirco Inverter System
I recently heard that an exemption from complying with cited edition may be available from ES.
Conditions being
1. no reduction in safety;
2. an exemption for the design is approved by Worksafe NZ (cost $400/design).
Haven't found time to follow this up yet.
Conditions being
1. no reduction in safety;
2. an exemption for the design is approved by Worksafe NZ (cost $400/design).
Haven't found time to follow this up yet.
- Wed Feb 07, 2024 9:35 am
- Forum: Inspection
- Topic: Batteries connected to PV PCE
- Replies: 5
- Views: 1969
Re: Batteries connected to PV PCE
Thanks for that link. However this site is not using correct technical language; it's jargon. Nothing wrong with jargon; provided everyone in the discussion knows which flavour is being used. In this case it's clearly intended to inform non-technical people; but is (mis-)using technical terminology....
- Sun Feb 04, 2024 10:40 am
- Forum: Inspection
- Topic: Batteries connected to PV PCE
- Replies: 5
- Views: 1969
Re: Batteries connected to PV PCE
Not sure what you mean by a.c. coupled, as batteries are always d.c.. Regardless; I don't believe connection of batteries to a PV - inverter system requires inspection. The (installation of) PV requires inspection if above ELV . While there are differences of interetation of what "associated with" m...
- Wed Jan 31, 2024 8:43 am
- Forum: Inspection
- Topic: Batteries connected to PV PCE
- Replies: 5
- Views: 1969
Re: Batteries connected to PV PCE
I don't believe that's the intent; and they are certainly not in parallel with " mains"; whereas they inverter output is. However ESR 4 defines MPGS using 2 criteria: (a) are used or intended for use by any person in, or in connection with, the generation of electricity for that person’s use; and (b...
- Sat Jan 27, 2024 11:39 am
- Forum: Distribution, Networks & Metering
- Topic: Network Connection of Mains
- Replies: 6
- Views: 2624
Re: Network Connection of Mains
Agree that under normal conditions electricity can't flow with all those precautions. But in event of a fault in the incoming mains it'll flow extremely well. I'm fairly confident that EWRB, or a court, would interpret 'flow" as incliding both normal and abnormal conditions. So the fact the intended...
- Thu Jan 25, 2024 11:04 am
- Forum: Distribution, Networks & Metering
- Topic: Network Connection of Mains
- Replies: 6
- Views: 2624
Re: Network Connection of Mains
I agree that it is non-compliant to connect to supply (active or neutral) without sighting (else issuing) a CoC and also an RoI if there is high risk PEW. It's my understanding that on many areas, the people making connections to network don't even sight a CoC. The pre-connection testing described i...
- Thu Jan 04, 2024 11:03 am
- Forum: Appliances
- Topic: MS305 Small Stock Stunner
- Replies: 2
- Views: 2333
Re: MS305 Small Stock Stunner
The SDoC appears to be in the prescribed form (though I didn't do a detailed check). However I don't think animal stunning equipment is on the Gazetted list of DMRAs; which means the SDoC is a voluntary one, as opposed to a required one. It claims the equipment complies with "6116". 3(b) of ESR 83 l...
- Thu Jan 04, 2024 10:11 am
- Forum: Appliances
- Topic: 60335.1 requirements
- Replies: 5
- Views: 4076
Re: 60335.1 requirements
I agree that's all they need to say (in order to comply with the requirement you quoted).
However sometimes they say more.
My point is that saying more than they need to doesn't make them non-compliant.
However sometimes they say more.
My point is that saying more than they need to doesn't make them non-compliant.
- Wed Dec 20, 2023 9:32 am
- Forum: Standards and Legislation
- Topic: SwitchBoard Upgrade (Edit - High Risk) Mains Work or Not?
- Replies: 3
- Views: 2401
Re: SwitchBoard Upgrade Mains Work or Not?
Jamie is correct that simple replacing of MSB is "mains work" but not high risk PEW. Also that both mains & MEC can be extended (at swbd end) 'to facilitate replacement" of the fittings that make up the swbd. And that any alteration to the configuration of the main earthing system, such as introduci...
- Wed Dec 20, 2023 9:16 am
- Forum: Appliances
- Topic: 60335.1 requirements
- Replies: 5
- Views: 4076
Re: 60335.1 requirements
The clause sets a requirement for something to be included in MIs; if the trigger condition for that requirement is met. The "something" is a 2-part instruction ; a) that means for disconnection must be provided in the fixed wiring, and b) that this means must be in accordance with the wiring rules....
- Fri Dec 15, 2023 7:29 am
- Forum: Standards and Legislation
- Topic: ESC and Council Building Inspectors
- Replies: 6
- Views: 1768
Re: ESC and Council Building Inspectors
The Council is entitled to request a copy of the ESC(s). For the scenario you describe, there should be two ESCs (at least); one for connection of mains (upstream of meterbox) to network, and one for connection of mains downstream of meterbox. What has been connected in each case is actually more co...
- Wed Dec 06, 2023 11:14 am
- Forum: Off Topic/General Electrical Discussions
- Topic: What defines who can do PEW
- Replies: 4
- Views: 3194
Re: What defines who can do PEW
Most likely people to get a shock would be the painters (or paperers). It's called Karma. Seriously; I'd rather they painted / papered behind the wall-plates than not, and this is work that a homeowner can do. In fact it may not actually be PEW; though I (firmly) believe it is. But safety requires i...
- Wed Dec 06, 2023 10:52 am
- Forum: Appliances
- Topic: 2 pole cooking appliance switches
- Replies: 4
- Views: 2945
Re: 2 pole cooking appliance switches
Agree preferable to have a single switch for a complete unit; just making a suggestion that avoids need for 400 V rating. Remember for compliance it's only the hob that actually requires a switch; which is there to allow operator to easily remove the heat source in event of a pan fire. A switch for ...
- Wed Dec 06, 2023 10:46 am
- Forum: General Electrical Discussions
- Topic: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
- Replies: 13
- Views: 5838
Re: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
I hadn't considered that possible configuration; but it makes sense, and fits the reported facts. And while red tape was not compliant when installed, it wasn't unusual. Agree testing is often skimped; with some "mandatory" tests either done using inappropriate methods or simply not done at all. Als...
- Wed Dec 06, 2023 9:57 am
- Forum: Appliances
- Topic: 2 pole cooking appliance switches
- Replies: 4
- Views: 2945
Re: 2 pole cooking appliance switches
For a domestic range; if on 2 phases then neither will need even 32 A, let alone 40 or 45. So why not use 2 separate switch mechs on a common plate? (just as you would for separate hob & oven). By separating the mechs with an air gap, you don't need a 400 V rated switch PDL have a 32 A mech; and eve...
- Fri Dec 01, 2023 10:52 am
- Forum: Appliances
- Topic: PDL56 series hazard?
- Replies: 4
- Views: 2862
Re: PDL56 series hazard?
2bd look at one i have here, this time with glasses, agree the screw head isn't recessed into a shroud as I thought . So the screw is an "accessible conductive part". But it isn't "liable to become alive", as there is double insulation between it and any live parts. So not ECC test of "accessible ea...
- Thu Nov 30, 2023 9:53 am
- Forum: Appliances
- Topic: PDL56 series hazard?
- Replies: 4
- Views: 2862
Re: PDL56 series hazard?
If assembled in accordance with manufacturer's instructions; there's plenty of insulation between the screw and any live parts. First a layer of plastic of the plug body, and then an air gap, and then the insulation of the conductor. So clearly Class II. In this case MI's have NOT been followed, and...
- Thu Nov 30, 2023 9:39 am
- Forum: Generators and Solar
- Topic: Generator set up
- Replies: 6
- Views: 3591
Re: Generator set up
Assuming that's 7.3.6 of "3000"; then yes 7.3 applies to generating systems (not just motor-driven; but any sort) that are being installed as part of an installation. . Similarly; 2.5.6.2.1 of '3010" does not apply unless installing the generator into an electrical installation. And there's no simil...
- Wed Nov 29, 2023 7:00 am
- Forum: Generators and Solar
- Topic: Generator set up
- Replies: 6
- Views: 3591
Re: Generator set up
The "Lifeguard" unit is not a connectable installation. Definition in Act limits CIs to vehicles, relocatable buildings, and pleasure vessels. Nor is it an appliance - it doesn't consume any electricity. It's basically just a big EPOD. If the protection and sockets are part of the generator unit; th...
- Sat Nov 18, 2023 12:18 pm
- Forum: General Electrical Discussions
- Topic: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
- Replies: 13
- Views: 5838
Re: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
Agree that 3rd-party interference is always a possibility. But in absence of any supporting evidence; it certainly can't be presumed. Also agree that the reporting of this case doesn't provide enough technical detail to be certain of exactly what was done. We can only speculate. But speculation shou...
- Thu Nov 16, 2023 12:24 pm
- Forum: General Electrical Discussions
- Topic: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
- Replies: 13
- Views: 5838
Re: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
The original article led me to think that there was only one (3-core_ cable st the socket; so with active on E terminal of socket there couldn't be any voltage on the A & N terminals so the appliance wouldn't run. This second article indicates there's a separate switch for the appliance; "3-plate" w...
- Thu Nov 16, 2023 11:36 am
- Forum: Earthing and Bonding
- Topic: 5.6.2.5 Shower and Bathroom floor Bonding
- Replies: 1
- Views: 1909
Re: 5.6.2.5 Shower and Bathroom floor Bonding
The effectiveness of the bonding connection to conductive reinforcing should be tested before the concrete is poured. The risk of the pour breaking the connection should be very low. If the EBC isn't fully run at at time of pour, you can test the continuity of the rest when you complete the run. Add...
- Tue Nov 14, 2023 11:31 am
- Forum: General Electrical Discussions
- Topic: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
- Replies: 13
- Views: 5838
Re: Nelson electrician Stephen Burton’s failure to carry out ‘simple task’ linked to death of builder Craig Johnston
Correct that sockets added to an existing circuit must have RCD protection. This seems to have been ignored by the prosecution; instead concentrating on lack of testing. In particular, EFLI testing - which wouldn't be required for an RCD socket. EC testing definitely was required either way. Bur wha...