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  #21  
Old 03.06.2019, 23:58
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Re: Any electricians here?

So it was indeed fuses in the basement that were broken, reason being because someone, according to electrician has used too small ones (16A) so it was only a matter of time when one would blow up. Took him 2 minutes to solve it including the handshake.

Since some higher forces do not want me to enjoy my smart home, now the freaking wlan decided to f-up and of course even factory reset does not help

Last edited by hellacopters; 04.06.2019 at 00:08.
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  #22  
Old 04.06.2019, 00:13
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Re: Any electricians here?

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The fuse board is two phase.
Thing is, you can't be certain about that only based on the picture. Lucky guess, yeah sure. But certainty nope.
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  #23  
Old 04.06.2019, 00:53
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Re: Any electricians here?

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Thing is, you can't be certain about that only based on the picture. Lucky guess, yeah sure. But certainty nope.
Not gonna bother arguing
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  #24  
Old 05.06.2019, 00:33
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Re: Any electricians here?

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So it was indeed fuses in the basement that were broken, reason being because someone, according to electrician has used too small ones (16A) so it was only a matter of time when one would blow up. Took him 2 minutes to solve it including the handshake.



Did you get the bill yet? It cost me something like 350 CHF including 20CHF each for the fuses. I needed only one but he gave me 2 spare.



BTW the fuses need to be appropriate size for the wiring. You shouldn't just replace fues with larger ones. FWIW mine is 10A for the whole apartment.
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Old 05.06.2019, 07:23
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Re: Any electricians here?

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BTW the fuses need to be appropriate size for the wiring. You shouldn't just replace fues with larger ones. FWIW mine is 10A for the whole apartment.
You cannot replace smaller fuses with larger ones, but you can replace larger ones with smaller ones, which seems to have been the problem.

25A is normal for mains fuses, not 16A (nor 10A).

Yours is 10A for the mains, or 10A local?

Tom
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Old 05.06.2019, 12:10
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Re: Any electricians here?

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Did you get the bill yet? It cost me something like 350 CHF including 20CHF each for the fuses. I needed only one but he gave me 2 spare.



BTW the fuses need to be appropriate size for the wiring. You shouldn't just replace fues with larger ones. FWIW mine is 10A for the whole apartment.
CHF 290 to change a fuse?!!

CHF 20 for each fuse?!!

Last edited by pilatus1; 05.06.2019 at 12:13. Reason: I'm no mathemagician
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  #27  
Old 05.06.2019, 18:10
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Re: Any electricians here?

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You cannot replace smaller fuses with larger ones, but you can replace larger ones with smaller ones, which seems to have been the problem.

25A is normal for mains fuses, not 16A (nor 10A).

Yours is 10A for the mains, or 10A local?

Tom



I got it wrong. 2 x 10A in the apartment and one fuse in the basement with a white dot at the end.
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  #28  
Old 05.06.2019, 18:34
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Re: Any electricians here?

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I got it wrong. 2 x 10A in the apartment and one fuse in the basement with a white dot at the end.
White is 50A
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  #29  
Old 05.06.2019, 18:52
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Re: Any electricians here?

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You cannot replace smaller fuses with larger ones, but you can replace larger ones with smaller ones, which seems to have been the problem.

25A is normal for mains fuses, not 16A (nor 10A).

Yours is 10A for the mains, or 10A local?

Tom
I've posted this before, but it's still applicable.

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  #30  
Old 05.06.2019, 18:55
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Re: Any electricians here?

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I got it wrong. 2 x 10A in the apartment and one fuse in the basement with a white dot at the end.
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White is 50A
Only 20A (max) in the apartment and 50A service?

You do realise that you pay extra for that, don't you?

Standard service is 25A, more is, umm, more, whether you use it or not.

Tom
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Old 05.06.2019, 18:57
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Re: Any electricians here?

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I've posted this before, but it's still applicable.

Attachment 136957
We have one of those 350A models on the shelf in the living room for emergencies, though it has a green tip.

Tom
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  #32  
Old 05.06.2019, 18:58
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Re: Any electricians here?

I know from being on the same plant that a wrench of that size will not slow blow on 2000A, it will in fact go incredibly fast on 1200A already

Co-worker dropped it without properly covering up/shutting down other parts of the installation.
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  #33  
Old 05.06.2019, 19:04
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Re: Any electricians here?

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White is 50A

Well I must have got that wrong too. It's small 16A in the basement, maybe it's light grey.
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  #34  
Old 05.06.2019, 19:12
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Re: Any electricians here?

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I know from being on the same plant that a wrench of that size will not slow blow on 2000A, it will in fact go incredibly fast on 1200A already

Co-worker dropped it without properly covering up/shutting down other parts of the installation.
A long time ago I was doing an inspection of an overhead crane at a voltage regulation station for a utility. The fitter I was working with dropped a 1" wrench from the crane.

When it was all done and dusted he asked "Did you see the flash?" My answer was "No, but I saw the reflection on the wall - I was busy sprinting along the 20" wide girder so I could escape the building."

So if anyone was in the Church street area in the Southeast part of downtown Toronto, in about 1985 and wondered why the power went out when there was no thunderstorm... now you know.
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  #35  
Old 05.06.2019, 19:19
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Re: Any electricians here?

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Well I must have got that wrong too. It's small 16A in the basement, maybe it's light grey.
16A main for two 10A subs sounds correct.

We have 3x 25A mains, with 2x 16A and 1x 10 (all 3p) subs.

Tom
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  #36  
Old 05.06.2019, 19:27
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Re: Any electricians here?

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A long time ago I was doing an inspection of an overhead crane at a voltage regulation station for a utility. The fitter I was working with dropped a 1" wrench from the crane.

When it was all done and dusted he asked "Did you see the flash?" My answer was "No, but I saw the reflection on the wall - I was busy sprinting along the 20" wide girder so I could escape the building."

So if anyone was in the Church street area in the Southeast part of downtown Toronto, in about 1985 and wondered why the power went out when there was no thunderstorm... now you know.
Mine did close his eyes the moment he dropped it, but you can years later still tell exactly till where his hairline and sweater where that day. (will teach him to stop thinking "oh, no worry. I can do this quickly, we don't have to shut down")
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Old 05.06.2019, 20:05
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Re: Any electricians here?

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Mine did close his eyes the moment he dropped it, but you can years later still tell exactly till where his hairline and sweater where that day. (will teach him to stop thinking "oh, no worry. I can do this quickly, we don't have to shut down")
We has a setup in the lab where we were using one of those dustbin sized can capacitors as part of a surge current test. Because the natural time for those things to discharge is not always predictable, we had a ceramic resistor with a relay switch in series to make sure there was no charge before we went in and changed the test samples.

We had a Russian guy working in the lab who was known for his rather robust manner of solving problems. For some reason the relay switch failed to work so he decided to discharge the cap using a different method. He dropped a wrench similar to that in the picture neatly over the terminals. This was after completion of a test mind you, so the capacitor was already nominally discharged and this was just to kill off any residual voltage. There was a mighty bang that had people from three floors further up running down to see if there had been a bomb. To say that the wrench melted would be an understatement as there was nothing left of it a tall, at least not of the middle part. And as the smoke cleared, this guy was standing there looking at us with a huge smile, saying,with his Russian accent, the capacitor is now successfully discharged.

Needless to say, the capacitor could not be used any more after that.
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