Understanding Electricty Supply

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Holme1

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Hi

I want to buy an item that says it needs a ' 1x220V / 60Hz (1 phase) + ground' power supply.

Does a normal domestic supply meet the requirements?

How can I find out what my supply is?  I am with Scottish Power but can't seem to find any contact info to ask them this sort of question.

Sharon

 
I the uk the supply is a nominal 230V 50Hz 

what at you have there sounds like it's made for the USA and will quite possibly break when connected to our 50Hz supply

 
Hi Sharon

Welcome to the forum. By law your electricity supply should be between 216.2-253 volts for a single phase supply. However, in the UK the frequency is 50 Hz, not 60Hz. Is the item you are looking to buy from the US by any chance?

 
Last edited by a moderator:
What is the item?

It won't like being connected to 240V instead of the 220 it is designed for (forget the fact our supply is a nominal 230V, in most cases it's much nearer to 240V, in fact 245V is pretty normal here)

If it uses a motor or a transformer, it might not be best pleased with a 50Hz supply when it was designed for 60Hz

It also won't have the correct approvals for sale in the UK in in all probability.

 
Thank you for your swift replies!

The item is a sunbed, which I assume is already being used in the UK.

I know that the commercial ones need a Phase 3 commercial supply but I want to be sure that I buy one that will work in my home.

 
Thank you for your swift replies!

The item is a sunbed, which I assume is already being used in the UK.

I know that the commercial ones need a Phase 3 commercial supply but I want to be sure that I buy one that will work in my home.


Well at least you checked first before buying it. It will not work in the UK. 

 
it probably will work, but if its asking for 60hz, then its probably not designed for the UK market and may not comply with UK laws such as CE marking etc

 
The seller has come back to say it will work on a domestic supply but needs a '16 amp rotary switch and a 32 amp breaker'.

Can you explain what that means in terms of an ordinary house supply?

 
It means you cannot just plug it in to your lounge sockets. You will need a dedicated new circuit installed by an electrician. 

 
The seller has come back to say it will work on a domestic supply but needs a '16 amp rotary switch and a 32 amp breaker'.

Can you explain what that means in terms of an ordinary house supply?


Then the seller clearly doesn't understand some very basic concepts associated with uk electrical installations. A 16A switch is not appropriate for a 32A supply for a start. 

Get them to confirm in writing that the unit has been CE marked for sale in the uk and send you a copy of the specification and manufacturers instructions

 
The seller has come back to say it will work on a domestic supply but needs a '16 amp rotary switch and a 32 amp breaker'.

Can you explain what that means in terms of an ordinary house supply?


it means you need a 32a supply, however you cant put 16a rated equipment on a 32a supply. find a different seller / sunbed. this one sounds like it will fry you after it or your house is on fire

 
Thank you all for your help.

I will steer clear.

Maybe I should just look for a winter sun holiday instead!

 
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