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Old 02.02.2021, 12:15
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Ask an Electrician or Electrical Engineer thread?

No, I am not one, but I am sure some of you are Could you please help me with my question and future questions from other people

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Since the power supply has 1600W, it must be fused accordingly. A Swiss cable with the C19/T23 connection is included. The cable must be operated at a fused socket with T23 socket and 16A fuse.
What is that in plain English? The electrical wall socket in my home office is 3 hole one. The flat's main fuse box switch and the fuse switch for my home office image attached. Does it mean that my wiring can't handle it?


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Old 02.02.2021, 12:20
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Re: Ask an Electrician or Electrical Engineer thread?

is the socket round or square pins? that is saying that whatever your device is needs a square pin (16A) socket. although for 1600W I think a 13A would be fine. maybe it has high start up current. is it a motor?

edit - i see your main breaker is 13A so you must have T13 (round pin) sockets not square pin ones. bad luck. or give it try anyway. you'll have to change the plug and invalidate the warranty though....

Last edited by DL21; 02.02.2021 at 12:34.
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Old 02.02.2021, 12:26
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Re: Ask an Electrician or Electrical Engineer thread?

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is the socket round of square pins?

You mean the wall socket? Round like all Swiss home sockets.



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maybe it has high start up current. is it a motor?
Possible future PC/workstation's Power supply unit Researching currently.
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Old 02.02.2021, 12:30
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Re: Ask an Electrician or Electrical Engineer thread?

The left one is a single phase 13 A circuit breaker
The right one is an RCD.

1600W means a current of around 7 A. Inrush current might be a bit higher but it should not drip a 13 A breaker.

"Problem" is that it comes with a type T23 plug, which means you will need a T23 or T25 socket or change the plug on the cable/use another cable. Notice the square holes.

T23 socket
Name:  T23 Socket.jpg
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T25 socket


I think you can safely use this device on a regular 10A outlet. However, on the same wall socket you should not connect much more load (max another 400 Watts), or on the same circuit max another 1400 Watts.

As it is a PSU, it will only draw as much power as the devices need plus an extra of approx. 10%. It will only draw +1600 Watts when you power up all your devices, specially the GPUs. If some one is using the power of the many GPUs in your rig better do not switch on a hair dryer, water kettle, or vacuum cleaner on the same circuit. It will certainly drip the breaker and you might lose all your data or the game. During idle and normal office operation, casual surfing it will not draw much more than 200 Watts.

I think the recommendation for a T23/25 socket which is secured by a 16 A breaker is just so that you can safely use other appliances on the same circuit w/o fear that you might drip the breaker.
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Last edited by aSwissInTheUS; 02.02.2021 at 12:44.
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Old 02.02.2021, 12:32
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Re: Ask an Electrician or Electrical Engineer thread?

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Round like all Swiss home sockets.
actually no. while those (T13, round pin) are the most common type, the current norm is to install T23 (16A, square pin) in kitchens and anywhere where the user wants to draw more than 13A from the circuit. it's not clear to me why a switched mode power supply rated at 1600W would need more than 13A, but if that's what they recommend, i guess there is a reason.
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Old 02.02.2021, 12:37
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Re: Ask an Electrician or Electrical Engineer thread?

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actually no. while those (T13, round pin) are the most common type, the current norm is to install T23 (16A, square pin) in kitchens and anywhere where the user wants to draw more than 13A from the circuit. it's not clear to me why a switched mode power supply rated at 1600W would need more than 13A, but if that's what they recommend, i guess there is a reason.

In that case it would be a NO for my flat. Thanks for your help
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Old 02.02.2021, 12:38
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Re: Ask an Electrician or Electrical Engineer thread?

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So is this C19 cable? It will come with the power supply unit. In the reviews on Digitec "Requires a C19 power cable - watch out for this".

Can't I just connect the 3 pin male part to my wall socket or extension cord?

yes, if you have an extension cord with square sockets and a round plug (must be home made as that would not conform to standards). it won't fit in the wall socket because the pins on the plug are square. to stop people doing exactly what you are trying to do!
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Old 02.02.2021, 12:42
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Re: Ask an Electrician or Electrical Engineer thread?

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yes, if you have an extension cord with square sockets and a round plug (must be home made as that would not conform to standards). it won't fit in the wall socket because the pins on the plug are square. to stop people doing exactly what you are trying to do!
I've had plenty of appliances supplied with exactly the lead in the photo (except for the colour). Still quite common for desktop computers, for example.
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Old 02.02.2021, 12:48
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Re: Ask an Electrician or Electrical Engineer thread?

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edit - i see your main breaker is 13A so you must have T13 (round pin) sockets not square pin ones. bad luck. or give it try anyway. you'll have to change the plug and invalidate the warranty though....
Better give it a miss then as there are multiple displays, another workstation and few other gadgets all on that one wall socket/fuse line.

Just a follow-up question, imagine I had a 1600w power supply that did not ask for such requirements, would that function ok on my flat's electrical setup?
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Old 02.02.2021, 12:53
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Re: Ask an Electrician or Electrical Engineer thread?

Got a link to the thing you are looking at?

Tom
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Old 02.02.2021, 13:04
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Re: Ask an Electrician or Electrical Engineer thread?

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Got a link to the thing you are looking at?

Tom

I had posted it on one of the posts above but here-


Possible future PC/workstation's Power supply unit
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Old 02.02.2021, 13:09
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Re: Ask an Electrician or Electrical Engineer thread?

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Just a follow-up question, imagine I had a 1600w power supply that did not ask for such requirements, would that function ok on my flat's electrical setup?
With the very same limitations as explained. The plug won't change anything. If you do not need the power you are fine, if you need the power and run other appliances/devices which also draw a lot of power (total combined more than 3000 W) the circuit breaker will trip.

Also on a single T12/T13/T15 wall socket you should not draw more than 10 A / 2300W.
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Old 02.02.2021, 13:20
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Re: Ask an Electrician or Electrical Engineer thread?

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I've had plenty of appliances supplied with exactly the lead in the photo (except for the colour). Still quite common for desktop computers, for example.
are you sure?

Old school computer cables have a different plug. The prongs are a different shape. So looks similar but is entirely different.

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Old 02.02.2021, 13:24
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Re: Ask an Electrician or Electrical Engineer thread?

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Also on a single T12/T13/T15 wall socket you should not draw more than 10 A / 2300W.
Ok, got it. All kitchen appliances are on a separate fuse switch. My home office fuse does not share the line with any other rooms. Vacuum cleaner has long cable, so I plug it only in my bathroom's socket (different line to my home office fuse).

I think I need to work out how much I consume currently in my home office fuse line when all appliances are in full usage.

Is this the correct device to measure current power draw? Will it tell me LIVE how much electricity I am drawing?
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Old 02.02.2021, 13:30
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Re: Ask an Electrician or Electrical Engineer thread?

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are you sure?

Old school computer cables have a different plug. The prongs are a different shape. Especially the earth prong. So looks similar but is entirely different.
Common is C13 which is rated up to 10 A. https://en.wikipedia.org/wiki/IEC_60320

Clipping of the T23 plug from a C19 cable and attaching a Typ 12/13 plug is doable, not really up to code (as it could be used in a T15/25 socket and the weakest link would be the plug), but given the particular power supply and circumstances an "option". Not 100% sure, but i think if a 10A fuse is added in the cable it would be o.k. as it would protect the smaller rated plug.
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Old 02.02.2021, 13:37
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Re: Ask an Electrician or Electrical Engineer thread?

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I think I need to work out how much I consume currently in my home office fuse line when all appliances are in full usage.

Is this the correct device to measure current power draw? Will it tell me LIVE how much electricity I am drawing?
I think it should. Be aware that you must put your system under load, either using prime95 + Furmark at the same time or using your maximum workload, otherwise you will only see the much lower idle power.
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Old 02.02.2021, 13:43
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Re: Ask an Electrician or Electrical Engineer thread?

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are you sure?

Old school computer cables have a different plug. The prongs are a different shape. So looks similar but is entirely different.

You're right, I failed to spot the horizontal prongs on the previous pic.
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Old 14.02.2021, 12:21
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Re: Ask an Electrician or Electrical Engineer thread?

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Also on a single T12/T13/T15 wall socket you should not draw more than 10 A / 2300W.

Just to update the thread, I had ordered this energy monitor device, but it was on back order. It will take another week apparently, and then I can get a better idea of my current power draw at max usage.

I also decided to run an extension cable from another room on a separate fuse into my home office (drilled a hole through the dry wall)

The new main workstation will be on its own line without any other shared devices connected to that line. Does it sound like a good plan?

Last edited by Talk to you later; 14.02.2021 at 14:50.
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Old 14.02.2021, 12:29
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Re: Ask an Electrician or Electrical Engineer thread?

Now we know who is setting up cyberattacks on the US government.
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Old 14.02.2021, 12:37
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Re: Ask an Electrician or Electrical Engineer thread?

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The new main workstation will be on its own line without any other shared devices connected to that line. Does it sound like a good plan?
Yes, I did something similar in the kitchen, using a spare 3P16A circuit to get 3x 1P16A, no more blown breakers for the past 20 years or so!

Also, no more big noisy desktop computers that consume a lot, only portables, RPis galore, and NAS.

Tom
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