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Older Activity
Yesterday,
02:58 PM
Douggie
replied to a thread
Split conduit for the solar wires
in
Electrical Contracting Industry Forum
Question: Using the black split conduit. Is it compliant in SA to use it everywhere? High Rise buildings etc.?
see more
1 replies | 1051 view(s)
Yesterday,
12:38 PM
Derlyn
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
Confirmed. Only one way to open an earth leakage and thats with the tool that has a yellow handle :D
see more
16 replies | 1516 view(s)
Yesterday,
08:21 AM
Derlyn
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
👍👍 or use a multimeter and check the reistance whilst pressing the button. 😂😂
see more
16 replies | 1516 view(s)
Yesterday,
07:28 AM
Dave A
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
No need for destruction testing. Just swop the poles and test that way ;)
see more
16 replies | 1516 view(s)
Yesterday,
07:01 AM
Justloadit
replied to a thread
Feeding back into grid.
in
Electrical Contracting Industry Forum
What also occurs, when the grid goes down, due to the low impedance of the grid, the amount of energy fed back by the inverter will surpass the...
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4 replies | 298 view(s)
Yesterday,
05:47 AM
Isetech
replied to a thread
How to wire a circuit breaker
in
Electrical Contracting Industry Forum
You should only use the screw holes specifically designed for securing the IP rated box. Drilling an IP rated box full of holes to secure it then...
see more
2 replies | 241 view(s)
21-Apr-24,
05:09 PM
Derlyn
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
Brilliant Dave. You are quite correct. If the test button is connected to the live on supply side, and neutral on the load side of the elr then...
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16 replies | 1516 view(s)
21-Apr-24,
02:44 PM
GCE
replied to a thread
Feeding back into grid.
in
Electrical Contracting Industry Forum
Inverters cannot create a grid - they can only follow a grid - if the grid drops they drop In other words they need to see a grid - if for a micro...
see more
4 replies | 298 view(s)
21-Apr-24,
01:29 PM
Derlyn
replied to a thread
Feeding back into grid.
in
Electrical Contracting Industry Forum
Hi GCE I still don't understand. Let's say there are 10 inverters exporting to the grid. Your inverter is one of them. Now the Municipality...
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4 replies | 298 view(s)
21-Apr-24,
01:16 PM
GCE
replied to a thread
Feeding back into grid.
in
Electrical Contracting Industry Forum
Inverters look for grid - if they do not see grid they turn off and just watch for grid to come back - in simple terms They cannot reconnect to...
see more
4 replies | 298 view(s)
21-Apr-24,
09:11 AM
Derlyn
started a thread
Feeding back into grid.
in
Electrical Contracting Industry Forum
Help me understand. One can, with a special meter, and the right setup, feed excess power generated by your panels, back into the grid. Your...
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4 replies | 298 view(s)
20-Apr-24,
06:39 PM
Andrew_van_Zyl
replied to a thread
City Power breaker tripping
in
Electrical Contracting Industry Forum
Good suggestion GCE - Thank you. Weirdly the problem has gone away and the client is less noisy. I will re-visit this if and when. Lol at wisps...
see more
6 replies | 687 view(s)
20-Apr-24,
06:33 PM
Andrew_van_Zyl
replied to a thread
Complex carport lights
in
Electrical Contracting Industry Forum
Quick update - issue turned out to be improper cable joins on Norsk cable. There is a lesson in this perhaps. The complex has over 200 units...
see more
3 replies | 620 view(s)
20-Apr-24,
01:55 PM
Derlyn
replied to a thread
How to wire a circuit breaker
in
Electrical Contracting Industry Forum
Applying silicone sealer to a round box cover does not give it an IP rating, nor does it make it weatherproof. Fact of the matter is that one...
see more
2 replies | 241 view(s)
20-Apr-24,
12:37 PM
Isetech
started a thread
How to wire a circuit breaker
in
Electrical Contracting Industry Forum
It's 2024, CBI no longer dominates the small circuit breaker industry (they have priced themselves out the market), we no longer bother with SABS...
see more
2 replies | 241 view(s)
20-Apr-24,
08:32 AM
Dave A
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
Try swopping the live and neutral in that diagram, and insert the dead fault between the "new" neutral and earth. And remember to bridge the earth...
see more
16 replies | 1516 view(s)
19-Apr-24,
06:23 PM
Derlyn
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
YoU will not believe how many circuit sketches I've made to try and work out how that neutral earth fault can render the test button inoperable,...
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16 replies | 1516 view(s)
19-Apr-24,
06:09 PM
Derlyn
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
@GCE. Yes.
see more
16 replies | 1516 view(s)
19-Apr-24,
03:46 PM
GCE
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
Was the light on ELU ?
see more
16 replies | 1516 view(s)
19-Apr-24,
03:20 PM
Derlyn
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
Ok. Was a neutral earth fault on a 1mm FTE going to an outside bulkhead light. The live was not yet connected in the db because the light switches...
see more
16 replies | 1516 view(s)
19-Apr-24,
12:48 PM
Dave A
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
On reflection I am possibly wrong on the relative neutral loop impedance readings. But I am mindful of your typical earthing arrangement in East...
see more
16 replies | 1516 view(s)
19-Apr-24,
07:39 AM
Derlyn
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
Good morning Dave. On my way back to site now. Some more testing to do. Theoretically, a bridged neutral and earth on the load side should...
see more
16 replies | 1516 view(s)
19-Apr-24,
07:20 AM
Dave A
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
Clutching at straws here, but - Earth and neutral is bridged on the load side? An earth neutral fault to the point where the neutral loop...
see more
16 replies | 1516 view(s)
18-Apr-24,
04:12 PM
Derlyn
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
The test button on the earth leakage relay should work irrespective of whether the neutral is earthed or not. There is an internal resister that...
see more
16 replies | 1516 view(s)
18-Apr-24,
03:49 PM
Justloadit
replied to a thread
Earth leakage problem. Help.
in
Electrical Contracting Industry Forum
The way that the ELU works, is that the Live and Neutral wire go through an iron core. The core then has a secondary winding connected to a trigger...
see more
16 replies | 1516 view(s)
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