Search found 149 matches
- Fri Nov 12, 2021 7:46 am
- Forum: Selection and Installation of Wiring Systems
- Topic: AS/NZS 3000:2007 - 3.9.4.4 (a)
- Replies: 4
- Views: 3555
Re: AS/NZS 3000:2007 - 3.9.4.4 (a)
Just adding to what you have asked, in the draft 5033:2021 if goes through unchanged the DC cabling will not be able to within 600mm of a ceiling, flat roof situation cabling has to be within 1m of external walls, the requirements come with good diagrams to show what is required. One of the reasons ...
- Thu Nov 11, 2021 11:14 am
- Forum: Transportable Installations
- Topic: Transportable Structures supplying power to other structures
- Replies: 10
- Views: 7609
Re: Transportable Structures supplying power to other structures
In answer to your question the three TS's the other day had RCD's not RCBO's I have also asked around and the feedback I am getting is not compliant and not good practice if it was a compliant. Just found out these TS's are manufactured in Palmerston Nth, and wired by a local electrical company, so ...
- Thu Nov 11, 2021 10:30 am
- Forum: Selection and Installation of Wiring Systems
- Topic: What part is connection? ESR73A
- Replies: 15
- Views: 4239
Re: What part is connection? ESR73A
Fair call Jamie on ESR 73A, so yes probably agree with you, good discussion though but unable to answer your question sorry.
- Thu Nov 11, 2021 10:19 am
- Forum: Transportable Installations
- Topic: Transportable Structures supplying power to other structures
- Replies: 10
- Views: 7609
Re: Transportable Structures supplying power to other structures
Wow, there is so many of these set ups out on construction sites, so as they come up for renewal they will be failed then?
If so, this info would possibly not be known by others. Big issue I think
If so, this info would possibly not be known by others. Big issue I think
- Thu Nov 11, 2021 10:16 am
- Forum: Transportable Installations
- Topic: Transportable Structure Appliance Inlet
- Replies: 8
- Views: 6391
Re: Transportable Structure Appliance Inlet
Thanks for all the valuable info Alec
- Thu Nov 11, 2021 9:28 am
- Forum: Transportable Installations
- Topic: Transportable Structures supplying power to other structures
- Replies: 10
- Views: 7609
Re: Transportable Structures supplying power to other structures
Giving this more thought the cascading/plug and play system is a rubbish system that opens the installation up for many errors, when any site shed can be connected to the arrangement by a layman, you could possibly end up with 10 sheds cascading off one socket outlet, overloading could be an issue b...
- Wed Nov 10, 2021 8:07 pm
- Forum: Selection and Installation of Wiring Systems
- Topic: What part is connection? ESR73A
- Replies: 15
- Views: 4239
Re: What part is connection? ESR73A
An inspector cant do the connection and inspection as the connection is PEW (ESR 73A and 71) if for example it is "works" and the inspector is authorised to work on the network or installing a revenue meter he could do both, connection and inspection?
- Wed Nov 10, 2021 6:20 pm
- Forum: Transportable Installations
- Topic: Transportable Structure Appliance Inlet
- Replies: 8
- Views: 6391
Re: Transportable Structure Appliance Inlet
Cheers Alec, clears it up I think, only can fail on excessive earth resistance but then I will try to clean the contacts to get a "pass" result anyway.
- Wed Nov 10, 2021 1:00 pm
- Forum: Transportable Installations
- Topic: Transportable Structure Appliance Inlet
- Replies: 8
- Views: 6391
Re: Transportable Structure Appliance Inlet
So would that be a fail under 3001 C7.5 if you didn't clean the contacts you wouldn't achieve the required earth readings as mentioned above, so that is why covers are required to achieve compliance to C6.5.
Not sure why some brands sell inlets without covers though.
Not sure why some brands sell inlets without covers though.
- Wed Nov 10, 2021 11:59 am
- Forum: Transportable Installations
- Topic: Transportable Structure Appliance Inlet
- Replies: 8
- Views: 6391
Re: Transportable Structure Appliance Inlet
Thanks Alec, the inlets are Gewiss model GW 60 437, looking on the web site I believe that they dont make covers for these inlets and as mentioned there seems to be a lot of inlets in the 32A range that dont have covers. https://www.gewiss.com/ww/en/products/experience-catalogue/catalogs/series/prod...
- Wed Nov 10, 2021 8:20 am
- Forum: Transportable Installations
- Topic: Transportable Structures supplying power to other structures
- Replies: 10
- Views: 7609
Transportable Structures supplying power to other structures
AS/NZS 3012:2.9 (d) requires socket outlets installed on the outside of a transportable structure to have the outlet protected by an RCD but the exceptions for that clause say " not if supplying other transportable structures...." This scenario is often used on construction sites but what is to stop...
- Wed Nov 10, 2021 7:50 am
- Forum: Transportable Installations
- Topic: Transportable Structure Appliance Inlet
- Replies: 8
- Views: 6391
Transportable Structure Appliance Inlet
Does an appliance inlet require a cover, so that when the connector is not install the pins of the inlet are protected from the elements. The reason for asking is some of the 32A inlets dont have covers not like the 16A versions that all seem to have them. AS/NZS 3001 clause 3.2.2 (c ) ii -requires ...
- Mon Nov 08, 2021 8:36 am
- Forum: Selection and Installation of Wiring Systems
- Topic: What part is connection? ESR73A
- Replies: 15
- Views: 4239
Re: What part is connection? ESR73A
Hi Jamie, I think the keys words are "PEW in the final step ...... " so terminating the conductors is the final connection in your scenario, operating a switch is not, its the same as installing a fuse, its not. Operating a "locked off" switch would go against ASNZS4836 and probably the H&S requirem...
- Fri Nov 05, 2021 2:53 pm
- Forum: Selection and Installation of Wiring Systems
- Topic: Does 3.4.3 apply to earths?
- Replies: 4
- Views: 2729
Re: Does 3.4.3 apply to earths?
Hi Jamie & Doug, I believe the 2.5mm earths wont comply as 5.3.3.1.2 says under exceptions : "where the summation of the csa does not correspond exactly with the nominal size of the active conductor given in table 5.1, the conductor shall be determined in relation to the nearest larger size of activ...
- Thu Nov 04, 2021 1:56 pm
- Forum: Distribution, Networks & Metering
- Topic: Private network
- Replies: 5
- Views: 5352
Re: Private network
Thanks Alec, the term 'private network" gets used a lot especially by engineers, where as they should say "works/private works"? So the "private network" of a subdivision is "works" from the LV side of the tx, as the fittings are non-exclusive fittings until they become exclusive fittings to each dw...
- Thu Nov 04, 2021 7:26 am
- Forum: Distribution, Networks & Metering
- Topic: Private network
- Replies: 5
- Views: 5352
Re: Private network
Thanks Greg but how does that explain a private network subdivision which has no Main Switchboard?
- Wed Nov 03, 2021 7:57 pm
- Forum: Distribution, Networks & Metering
- Topic: Private network
- Replies: 5
- Views: 5352
Private network
Probably a stupid question but what is the definition of a private network or makes a private network, I have seen subdivisions in the area I live where they are called "private networks"? Not sure if the reticulation for the subdivision is metered at the transformer that supplies power to the dwell...
- Mon Nov 01, 2021 10:53 am
- Forum: Inspection
- Topic: Project Manger Inspecting
- Replies: 4
- Views: 4837
Project Manger Inspecting
If you are a Project Manager of an electrical project, can you as the PM inspect any hi risk work undertaken on this project or is Project Managing regarded as supervising as per Reg 71 2(b), there will be an electrical site supervisor as well. Indirectly the Project Manager is supervising and overs...
- Wed Sep 22, 2021 11:58 am
- Forum: Standards and Legislation
- Topic: Mains Work
- Replies: 3
- Views: 3038
Mains Work
In AS/NZS 3000:2007 Fig 5.2 shows a HV Customer Substation supplying a Main Swb (no MEN link) are the conductors supplying this swb "mains" ? ESR reg 4 has the definitions of "mains" and "mains work" both refer to connecting the conductors to a MEN switchboard. If the POS is the substation then, no?...
- Fri Aug 13, 2021 11:36 am
- Forum: Distribution, Networks & Metering
- Topic: Outbuilding definition
- Replies: 3
- Views: 4595
Re: Outbuilding definition
My thoughts also Jamie, but the engineer is going down the track that the apts are not in an outbuilding due to the construction of the fire rated walls etc. If he is prepared to make it a certified design then ok. Thanks.
- Fri Aug 13, 2021 10:37 am
- Forum: Distribution, Networks & Metering
- Topic: Outbuilding definition
- Replies: 3
- Views: 4595
Outbuilding definition
If you have a standalone outdoor Main Swb IP rated on a concrete plinth on a site (point of supply is upstream), that has multiple fuses to supply Dist cabinets on this site, from these Dist Cabinets, mains go to apartments located in multiple blocks (separated by land). Each block for example may h...
- Tue Aug 10, 2021 9:22 am
- Forum: Standards and Legislation
- Topic: How long do we have to issue a CoC?
- Replies: 14
- Views: 8143
Re: How long do we have to issue a CoC?
Interesting Alec, so are you saying that ESR 65 (1) tells us when a COC must be issued but no where it says, who has to issue it, so for example you or anybody else (if brave enough) could issue a COC for work I have done, even though you dont know me or haven't seen the work I completed? Do you thi...
- Wed Jun 16, 2021 8:15 am
- Forum: Distribution, Networks & Metering
- Topic: Meter Terminal size
- Replies: 5
- Views: 6033
Re: Meter Terminal size
I believe its 25mm, if the mains are larger ie long run for volt drop, break the cable down to suit the fusing
- Tue Jun 08, 2021 12:54 pm
- Forum: Selection and Installation of Wiring Systems
- Topic: Submains though apartment ceilings
- Replies: 1
- Views: 1290
Submains though apartment ceilings
I have a scenario where there is multiple apartments (each with their own title) in the same building, there is a Common Main Switchboard incl meters (in a Common area) and some of the apartments submains will need to run through the ceilings of other apartments to the MSB, due to the construction o...
- Wed May 26, 2021 8:11 am
- Forum: Standards and Legislation
- Topic: 2 phases at a switch?
- Replies: 3
- Views: 2747
Re: 2 phases at a switch?
You would be looking for clause 2.3.2.1 in AS/NZS3000
- Wed May 05, 2021 8:26 am
- Forum: Selection and Installation of Wiring Systems
- Topic: Old cable types
- Replies: 4
- Views: 10877
Re: Old cable types
Hi Chaz, if you are talking about the white 2.5m 2C + E TPS, it came out in the seventies (I was just finishing my apprenticeship), it was manufactured when the cable sizes transition from imperial to metric and it was very difficult to work with. It wasn't around along and got changed to the presen...
- Thu Apr 22, 2021 3:00 pm
- Forum: Standards and Legislation
- Topic: MBIE looking at updating ESR
- Replies: 2
- Views: 1828
MBIE looking at updating ESR
Looks like MBIE is after feedback in regards to updating the ESR to reflect some of the latest standards.
https://www.mbie.govt.nz/have-your-say/ ... gulations/
https://www.mbie.govt.nz/have-your-say/ ... gulations/
- Mon Apr 19, 2021 11:06 am
- Forum: Inspection
- Topic: Private network
- Replies: 11
- Views: 13094
Re: Private network
Thank you for clarifying Alec, the reason I asked was I have heard of Off grid earthing been interpreted as not requiring an inspection and this came from a person who does training.
- Sun Apr 18, 2021 9:51 am
- Forum: Inspection
- Topic: Private network
- Replies: 11
- Views: 13094
Re: Private network
Hi Greg, yeah I was going off track, I was referring to Alec last post about earthing systems Off grid, any thoughts?
- Sun Apr 18, 2021 8:40 am
- Forum: Inspection
- Topic: Private network
- Replies: 11
- Views: 13094
Re: Private network
So Alec, in ESR 4) mains work b)i) "(b) does not include— (i) work on fittings that are used or intended for use by any person in, or in connection with, the generation of electricity for that person’s use and not for supply to any other person; or" What does this mean? If Off grid the earthing syst...
- Sat Apr 17, 2021 10:40 am
- Forum: Inspection
- Topic: Private network
- Replies: 11
- Views: 13094
Re: Private network
Thanks Greg and thanks Alec for a detailed answer
- Fri Apr 16, 2021 7:39 pm
- Forum: Inspection
- Topic: Private network
- Replies: 11
- Views: 13094
Re: Private network
Thanks for confirming Greg
- Fri Apr 16, 2021 5:10 pm
- Forum: Inspection
- Topic: Private network
- Replies: 11
- Views: 13094
Private network
Does a private network of a couple hundred dwellings still require inspections for the High Risk work, eg MEN, mains, earthing and electrode to each dwelling, I think so?
If this is High Risk work does it still require to be registered on the High Risk data base?
Thanks Peter
If this is High Risk work does it still require to be registered on the High Risk data base?
Thanks Peter
- Fri Apr 16, 2021 11:16 am
- Forum: Inspection
- Topic: Solar Off Grid ELV - High risk or not?
- Replies: 3
- Views: 4419
Re: Solar Off Grid ELV - High risk or not?
https://www.worksafe.govt.nz/about-us/n ... v-systems/
This link has been around for a few years now, from Worksafe.
This link has been around for a few years now, from Worksafe.
- Tue Apr 13, 2021 5:00 pm
- Forum: Testing & Verification
- Topic: Replace power point testing
- Replies: 8
- Views: 7756
Re: Replace power point testing
Hi Alec, yeah you don't know how the circuit is wired but I just thought the power is off while you are changing the ppt, and you have run out a trailing lead to check the polarity so not much more effort to check the power outlets in the area you are working in, you could assume any outlets with no...
- Tue Apr 13, 2021 1:25 pm
- Forum: Testing & Verification
- Topic: Replace power point testing
- Replies: 8
- Views: 7756
Re: Replace power point testing
I would say technically yes, as you are the last person working on that circuit but hey I am probably wrong, Alec will confirm. I know it also probably wouldn't get checked either.
- Tue Apr 13, 2021 12:56 pm
- Forum: Testing & Verification
- Topic: Replace power point testing
- Replies: 8
- Views: 7756
Re: Replace power point testing
Yes, like Alec says if you dont check the polarity of the socket outlets upstream to the one you are replacing you dont know if the wiring has been transposed at them, makes a quick job turn into something a bit longer.
- Sun Apr 11, 2021 9:59 am
- Forum: Damp Situations
- Topic: power points under eves
- Replies: 6
- Views: 7343
Re: power points under eves
I suppose also Nathan you cant stop people and their actions, if someone wants to waterblast a power outlet you cant stop them
- Fri Mar 26, 2021 10:26 am
- Forum: Generators and Solar
- Topic: Tesla Power-Wall
- Replies: 8
- Views: 7346
Re: Tesla Power-Wall
Cheers again Alec
- Fri Mar 26, 2021 10:14 am
- Forum: Standards and Legislation
- Topic: ESR 6A - Low Risk Work
- Replies: 8
- Views: 3684
Re: ESR 6A - Low Risk Work
Fair comments Alec and appreciated, my concerns are that inverter technology hasn't kept up with the PV panel technology, so a lot of inverters are not rated now for the panels in regards to short circuit currents, so by having a third party inspect will hopefully check the inverter specifications, ...
- Fri Mar 26, 2021 9:40 am
- Forum: Standards and Legislation
- Topic: ESR 6A - Low Risk Work
- Replies: 8
- Views: 3684
Re: ESR 6A - Low Risk Work
Hi Alec, if you replaced a PV grid connected inverter, this would be Hi-Risk?
- Fri Mar 26, 2021 9:02 am
- Forum: Generators and Solar
- Topic: Tesla Power-Wall
- Replies: 8
- Views: 7346
Re: Tesla Power-Wall
Hi Alec, I wonder why, when batteries are connected to a PV system >ELV and mains parallel generation that they are not regarded as High Risk Work as they form part of the PV system if DC coupled and even when AC coupled they are connected to communicate with the PV inverter for operating purposes. ...
- Wed Mar 24, 2021 3:51 pm
- Forum: Generators and Solar
- Topic: Tesla Power-Wall
- Replies: 8
- Views: 7346
Re: Tesla Power-Wall
I believe if you follow AS/NZS 5139:2019 (even though not cited) for battery installs you cant go wrong, at least you have followed the best practices available. The Electron magazine, Issue 103 (August 202) the "Board " recommends that electrical workers are able to reference the latest version of ...
- Thu Mar 18, 2021 10:00 am
- Forum: Inspection
- Topic: using 6mm as mains tails in a domestic DB
- Replies: 5
- Views: 6757
Re: using 6mm as mains tails in a domestic DB
Hi Alec, I believe the OP when using the term "gyro" is referring to the company Gryo Plastics whom make underground distribution pillars.
Peter
Peter
- Sun Mar 14, 2021 10:16 am
- Forum: Selection and Installation of Wiring Systems
- Topic: Are crimp links fittings
- Replies: 10
- Views: 4497
Re: Are crimp links fittings
Thanks Alec, agree with what you say, that is why I was asking if crimp links were fittings but don't need to be accessible, yet j/boxes are also fittings but should be accessible, confusing.
Cheers
Cheers
- Sat Mar 13, 2021 3:53 pm
- Forum: General Electrical Discussions
- Topic: Building Inspector quoting from AS/NZS 3000:2018
- Replies: 7
- Views: 6687
Re: Building Inspector quoting from AS/NZS 3000:2018
Thanks Greg, have gone done that avenue, so hoping its now a closed case and we don't waste any more time, the joys of contracting!
- Sat Mar 13, 2021 3:49 pm
- Forum: Selection and Installation of Wiring Systems
- Topic: Are crimp links fittings
- Replies: 10
- Views: 4497
Re: Are crimp links fittings
So a j/box in a lined wall would be non compliant?
- Sat Mar 13, 2021 1:40 pm
- Forum: General Electrical Discussions
- Topic: Building Inspector quoting from AS/NZS 3000:2018
- Replies: 7
- Views: 6687
Re: Building Inspector quoting from AS/NZS 3000:2018
Yeah Greg, we have explained all that to him etc etc but as this is a 4 year contract we have substantial commercial interests in this project, not saying we would do anything from what we are required to do but the last thing the Head Contractor wants is a sub contractor upsetting the local council...
- Sat Mar 13, 2021 11:58 am
- Forum: Selection and Installation of Wiring Systems
- Topic: Are crimp links fittings
- Replies: 10
- Views: 4497
Re: Are crimp links fittings
Ok, so an inline crimp joint on a TPS cable in say a wall, does that fail under the requirement of ESR 20-2 (i) "i) there is insufficient space, access, and lighting to operate, maintain, repair, test, and inspect all fittings of the works and installations (other than cables and buried parts of ear...
- Fri Mar 12, 2021 8:04 pm
- Forum: Selection and Installation of Wiring Systems
- Topic: Are crimp links fittings
- Replies: 10
- Views: 4497
Are crimp links fittings
Hi All Maybe a stupid question but are crimp links "fittings" as the definition in the Act for fittings say "fittings means everything used, or designed or intended for use, in or in connection with the generation, conversion, transformation, conveyance, or use of electricity" so if a TPS cable is c...