• IMPORTANT: The thread you're reading / posting in, could be in a DIY electrical advice area. Please be aware of your local laws. You're not allowed to provide advice to, or seek advice from, DIYers and fellow professionals in some States, Countries, Countys etc with regards to some types of electrical installations or repairs. Keep that in mind. If it's against the law where you are - always get a professional electrician in to carry out the works instead of doing it yourself. The forum will not be held responsible for any outcome of any applications of any advice sought from it.
Advertisement - Content continues below
Advertisement - Content continues below

Discuss Extension Leads in the DIY Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:  American Electrical Advice Forum

I am always extremely cautious with working with anything that involves with electricity. Was wondering if anyone can help and give advice to these with these questions to help calm the anxiety.

  • First is how much load can i put through 1 extension lead? I know each of them can have different amp fuses. But it would be useful to have a table of some sort. Does it depend of how many Watts from the compliance?
  • Next what are your thoughts of running an extension lead over a door frame? Will health and safety approve?
  • Lastly, this one question goes in within the first question and I know we shouldn't do this. but if someone was to "daisy chain" 2 extensions temporarily am i right it should be calculated to 1 connected to the mains?
 
Advertisement - Content continues below

Andy78

-
Mentor
Arms
Esteemed
Thank you for that. I wasn't only referring to my home use if i am honest...
Ah ok

I am always extremely cautious with working with anything that involves with electricity. Was wondering if anyone can help and give advice to these with these questions to help calm the anxiety.

  • First is how much load can i put through 1 extension lead? I know each of them can have different amp fuses. But it would be useful to have a table of some sort. Does it depend of how many Watts from the compliance?
  • Next what are your thoughts of running an extension lead over a door frame? Will health and safety approve?
  • Lastly, this one question goes in within the first question and I know we shouldn't do this. but if someone was to "daisy chain" 2 extensions temporarily am i right it should be calculated to 1 connected to the mains?
  • The max is 13A as that is the biggest fuse that can be used in the plug top. The cable and sockets on the lead will be rated for this load
  • Not great really but if secured with proper cable clips it should not really present any hazards. A permanent solution should really be looked at to provide extra sockets where needed.
  • Again the max current draw will be 13A in total no matter how many are daisy chained as that is the max fuse in the end plugged into the wall. This should be avoided though if possible.
What's plugged into this theoretical arrangement ? 😬
 
  • Thread Starter Thread Starter
  • #5
Ah ok


  • The max is 13A as that is the biggest fuse that can be used in the plug top. The cable and sockets on the lead will be rated for this load
  • Not great really but if secured with proper cable clips it should not really present any hazards. A permanent solution should really be looked at to provide extra sockets where needed.
  • Again the max current draw will be 13A in total no matter how many are daisy chained as that is the max fuse in the end plugged into the wall. This should be avoided though if possible.
What's plugged into this theoretical arrangement ? 😬
Okay thank you. So I have 10 PC's with 1,000 Watts power which are on 24/7 run at its max power for CPU rendering. I have split it into 4 per each 13 amp extension. I have managed to get hold of a electrician to come in during next week to check before i start them up.

If i want to calculate how many amps come do i right a watts divide volts?
 

Dan

Admin
Okay thank you. So I have 10 PC's with 1,000 Watts power which are on 24/7 run at its max power for CPU rendering. I have split it into 4 per each 13 amp extension. I have managed to get hold of a electrician to come in during next week to check before i start them up.

If i want to calculate how many amps come do i right a watts divide volts?
Are you mining for bit coins by any chance?
 

Andy78

-
Mentor
Arms
Esteemed
Okay thank you. So I have 10 PC's with 1,000 Watts power which are on 24/7 run at its max power for CPU rendering. I have split it into 4 per each 13 amp extension. I have managed to get hold of a electrician to come in during next week to check before i start them up.

If i want to calculate how many amps come do i right a watts divide volts?
Yes, current = power/voltage
So Amps = Watts/Volts
So 1000/230 = 4.35A
4.35 x 4 = 17.4A so maybe not put 4 x 1000W PSUs on one 13A lead

Get the place properly kitted out for your requirements.

Please make sure you are not using any extension leads that are coiled too. Have seen this before where a company had computers doing visual 3d renders which took over a day to draw. We told them they should uncoil the extension leads. They ignored us. The leads caught fire. They were renting office space above a factory. We were there rewiring the factory after it had been gutted by fire. The factory owners were not best pleased at this turn of events.
 

Pete999

-
Arms
Esteemed
I = P/V So 1000/230=4.3 Amps you say you have 10 KW of load so 43 Amps if you intend running all these loads from a daisy chained lead system, It aint going to work
Post automatically merged:

Yes, current = power/voltage
So Amps = Watts/Volts
So 1000/230 = 4.35A
4.35 x 4 = 17.4A so maybe not put 4 x 1000W PSUs on one 13A lead

Get the place properly kitted out for your requirements.

Please make sure you are not using any extension leads that are coiled too. Have seen this before where a company had computers doing visual 3d renders which took over a day to draw. We told them they should uncoil the extension leads. They ignored us. The leads caught fire. They were renting office space above a factory. We were there rewiring the factory after it had been gutted by fire. The factory owners were not best pleased at this turn of events.
Get the impression from the OP that the intension is to daisy chain the extension leads, hope I'm wrong though.
 

telectrix

-
Mentor
Arms
Esteemed
Advertisement - Content continues below

Reply to Extension Leads in the DIY Electrical Forum area at ElectriciansForums.net

uHeat Banner - Forum Discount Available
This official sponsor may provide discounts for members
Advertisement - Content continues below
Top Bottom