Earthing and Bonding

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Last post by gregmcc « Thu Apr 23, 2020 12:23 pm
Posted in Announcements
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by gregmcc » Thu Apr 23, 2020 11:50 am » in Announcements

Hi everybody,
Just thought it was time for an update. We have over 160 members which is very good. Thank you for your support!

A few new features...

4 Replies

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Last post by gregmcc
Thu Apr 23, 2020 12:23 pm

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Earth stake directly into concrete

Last post by AlecK « Mon Sep 09, 2024 10:28 am
Replies: 5
by BenAlchin » Wed Mar 31, 2021 5:15 pm
Rating: 11.11%

Hi folks,

Looking for advice here - my boss tells me that an earth stake directly into concrete is non-compliant (residential), but looking at the...

5 Replies

15797 Views

Last post by AlecK
Mon Sep 09, 2024 10:28 am
5.6.2.5 Shower and Bathroom floor Bonding

Last post by AlecK « Thu Nov 16, 2023 11:36 am
Replies: 1
by Slovett » Wed Nov 15, 2023 5:38 pm

Hi,

Just a question about 5.6.2.5 - Bonding in Showers and Bathroom floors and walls.

This has to be the least followed Rule in 3000 - Every time...

1 Replies

9899 Views

Last post by AlecK
Thu Nov 16, 2023 11:36 am
MEN colour if insulated 5.3.5.3

Last post by AlecK « Mon Aug 07, 2023 11:20 am
Replies: 1
by JamieP » Sun Aug 06, 2023 3:45 pm
Rating: 11.11%

Is it a mistake that green alone is allowed for insulated MEN connection's?

Or is there a specific reason?

1 Replies

8762 Views

Last post by AlecK
Mon Aug 07, 2023 11:20 am
Explosive Areas Bonding Sizes

Last post by AlecK « Sat Jul 29, 2023 11:47 am
Replies: 1
by Paulm » Fri Jul 28, 2023 4:43 pm

Could someone please point me to the bonding sizes in AS/NZS 60079?
I'm not sure which part, but AS/NZS 3000:2007 states that bonding conductor sizes...

1 Replies

7830 Views

Last post by AlecK
Sat Jul 29, 2023 11:47 am
shape of horizontal earth electrode and distance between two main earth electrode

Last post by awb « Sat May 20, 2023 1:48 pm
Replies: 4
by Tiger » Sat Apr 15, 2023 10:02 pm

Hi Guys，

New townhouses built on volcanic rock. There is no chance for Vertical earth electrode. Can only try Hotizontal eletrode, normally, 7.5m...

4 Replies

14541 Views

Last post by awb
Sat May 20, 2023 1:48 pm
5.5.1.3 Labelling (Main earth)

Last post by AlecK « Fri Mar 24, 2023 9:33 am
Replies: 1
by JamieP » Thu Mar 23, 2023 8:43 pm

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...

1 Replies

8681 Views

Last post by AlecK
Fri Mar 24, 2023 9:33 am
LM certifying main earth

Last post by AlecK « Fri Feb 24, 2023 3:13 pm
Replies: 3
by TPower » Wed Feb 08, 2023 2:56 pm

Can a Distribution LM certify a main earth?

I’ve been given a COC for installing underground mains to the point of entry & a bare main earth...

3 Replies

12194 Views

Last post by AlecK
Fri Feb 24, 2023 3:13 pm
MEC sized by max demand

Last post by AlecK « Wed Dec 14, 2022 9:48 am
Replies: 7
by Dan L » Sun Aug 23, 2020 11:50 pm

5.3.3.2b

example if you had a 35mm mains supplying a 63amp switchboard with 63amp mcb ( maximum demand by limitation)

Then you can have a 6mm main...

7 Replies

23207 Views

Last post by AlecK
Wed Dec 14, 2022 9:48 am
Do I need to provide certification if I only install earths?

Last post by JamieP « Sat Dec 10, 2022 6:49 am
Replies: 7
by JamieP » Wed Jul 20, 2022 3:20 pm

My situation is I have been asked to install some equipotential bonds between pipes that carry explosive dust. The inside of the pipes is Z20....

7 Replies

20865 Views

Last post by JamieP
Sat Dec 10, 2022 6:49 am
Bonding

Last post by AlecK « Wed Nov 02, 2022 11:38 am
Replies: 3
by Jabba » Tue Nov 01, 2022 9:06 am
Rating: 11.11%

I have a situation with an electrical installation supplying an electrical accessory in another installation.

There is an orchard with its own...

3 Replies

13207 Views

Last post by AlecK
Wed Nov 02, 2022 11:38 am
MEN vs TNS

Last post by TPower « Fri Mar 04, 2022 11:35 am
Replies: 5
by TPower » Wed Mar 02, 2022 9:17 pm
Rating: 88.89%

Had a discussion with an electrician that’s proposing to install a different type of earthing system at his main switchboard than the standard...

5 Replies

20625 Views

Last post by TPower
Fri Mar 04, 2022 11:35 am
Multiple Electrical Installation

Last post by AlecK « Tue Jan 25, 2022 10:28 am
Replies: 1
by Jabba » Tue Jan 25, 2022 12:27 am
Rating: 11.11%

Hi, just looking for some help in determining compliance for an installation or advice on configuration.

The property has a meter board on the fence...

1 Replies

10375 Views

Last post by AlecK
Tue Jan 25, 2022 10:28 am
PEC Submain

Last post by AlecK « Thu Dec 02, 2021 10:38 am
Replies: 4
by greesleeve » Sat Jul 25, 2020 8:29 pm
Rating: 22.22%

Hi,

I have a 15 amp spa and 20 amp sauna to go in at a house. Options I see are 6 mm out to sub board and then split from there, 15 and 20 rcbo, but...

4 Replies

17636 Views

Last post by AlecK
Thu Dec 02, 2021 10:38 am
5.7.5 Supplementary Equipotential Bonding

Last post by AlecK « Tue Nov 30, 2021 2:35 pm
Replies: 4
by JamieP » Wed Nov 24, 2021 6:59 pm
Rating: 11.11%

I have a situation where I'm getting a 0.58-0.6 ohm EFLI and 0.21-0.23 ohm EC for a circuit on a 40A D curve MCB

Cable is X-90 4c+e 10mm/4mm approx...

4 Replies

15214 Views

Last post by AlecK
Tue Nov 30, 2021 2:35 pm
Additional lighting point in an existing installation

Last post by JamieP « Sat Nov 13, 2021 7:26 pm
Replies: 3
by Jabba » Sat Nov 13, 2021 10:52 am

I have a question about the requirement for an earth at a lighting point in an existing installation wired in 2 core.

5.4.3 requires an earthing...

3 Replies

13659 Views

Last post by JamieP
Sat Nov 13, 2021 7:26 pm
Steel bench top.

Last post by AlecK « Mon Oct 25, 2021 11:40 am
Replies: 14
by TPower » Mon Mar 01, 2021 2:13 pm
Rating: 100%

Was having a discussion with another electrician regarding earthing a stainless steel bench top.

He advised the bench-top has no electrical...

14 Replies

34375 Views

Last post by AlecK
Mon Oct 25, 2021 11:40 am
Main earth size for mains in parallel

Last post by JamieP « Sun Oct 24, 2021 11:38 am
Replies: 6
by Dan L » Thu Oct 21, 2021 4:44 pm

It states main earth shoukd be sized to the largest active conductor

But what if active conductors are in parallel. I feel like the actives csa...

6 Replies

18997 Views

Last post by JamieP
Sun Oct 24, 2021 11:38 am
5.3.5.1 MEN location exceptions

Last post by AlecK « Fri Oct 22, 2021 9:38 am
Replies: 9
by JamieP » Sun Aug 15, 2021 12:11 pm
Rating: 33.33%

Under this clause there are exceptions for the MEN to not need be located on the main switchboard

If using such exception, it doesn't mention any...

9 Replies

23554 Views

Last post by AlecK
Fri Oct 22, 2021 9:38 am
Requirements for screens of cables for interference

Last post by AlecK « Mon Jul 05, 2021 4:54 pm
Replies: 3
by JamieP » Sat Jul 03, 2021 10:48 pm
Rating: 22.22%

Just curious around what rules to apply for screens, such as those in screened instruments cables or other similar arrangements when the screen is...

3 Replies

14086 Views

Last post by AlecK
Mon Jul 05, 2021 4:54 pm
Testing for presence of a main earth when one can't be found

Last post by Craig W « Thu May 13, 2021 5:17 pm
Replies: 12
by WhyEr » Wed Sep 23, 2020 11:24 am
Rating: 77.78%

Just wondering what methods everyone is using for testing for presence of a main earth should one be unable to be sighted.

From my understanding the...

12 Replies

33591 Views

Last post by Craig W
Thu May 13, 2021 5:17 pm
5.6.2.6.4 Bonding Connector Connection Point (For Pools)

Last post by Slovett « Wed Apr 14, 2021 9:24 pm
Replies: 6
by Slovett » Thu Apr 08, 2021 2:21 pm

Hi,

I've got a mates Pool to wire up, (currently in construction) with a filled Cinder Block Structure. I'm going to bond a few of the Starter bars...

6 Replies

18103 Views

Last post by Slovett
Wed Apr 14, 2021 9:24 pm
PELV Earthing

Last post by AlecK « Tue Mar 23, 2021 1:46 pm
Replies: 7
by Billq » Tue Mar 09, 2021 1:29 pm
Rating: 22.22%

AS/NZS 3000:2007: Clause 1.4.76 describes protected extra-low voltage (PELV) as an extra-low voltage system that is NOT electrically separated from...

7 Replies

20277 Views

Last post by AlecK
Tue Mar 23, 2021 1:46 pm
Earth electrode In rock

Last post by Dan L « Thu Mar 18, 2021 1:59 pm
Replies: 4
by Dan L » Thu Mar 18, 2021 9:21 am

Location surrounded by volcanic rock.

Mains trench has been cut I to rock them will be filled in.

As far as earth electrode options

- horizontal
-...

4 Replies

15781 Views

Last post by Dan L
Thu Mar 18, 2021 1:59 pm
Aluminium kitchen splashbacks

Last post by AlecK « Sat Mar 06, 2021 11:52 am
Replies: 2
by Cookies » Sat Mar 06, 2021 7:20 am

Hi guys,

Just curious if people have come across those gloss finish aluminium kitchen splashbacks? (these were from mitre 10).

I haven’t finished...

2 Replies

12003 Views

Last post by AlecK
Sat Mar 06, 2021 11:52 am
Pool Equipment Bonding 5.6.2.6.1 (b)

Last post by AlecK « Fri Mar 05, 2021 2:48 pm
Replies: 6
by Slovett » Fri Feb 26, 2021 10:37 am
Rating: 11.11%

Im suffering a bit of Brain Fog this morning - but clause 5.6.2.6.1(b) in 3000 has me a bit stumped. The following shall to be epuipotentially bonded...

6 Replies

18911 Views

Last post by AlecK
Fri Mar 05, 2021 2:48 pm

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