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Old 12-19-2012, 04:19 PM   #1
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Load KVa


I am ready to submit an application for a new connection and have been asked to provide Electrical Load Requirements in KVa

I am building a small 3 bedroom property 5.4mtr x 9.3mtr and was wondering if anyone could assist with what i should insert.

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Old 12-19-2012, 04:25 PM   #2
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Load KVa


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Old 12-19-2012, 08:46 PM   #3
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Load KVa


Multiply the number of amperes you want/need to have available by the line voltage. Then divide by 1000. I think the UK uses 240 volts for all household branch circuits; all lights and appliances.

Or you can take the expected load in watts and divide by 1000.

Example: A building for which you expect to need 100 amps at 240 volts would have a load of 24000 watts aka 24000 VA or 240 KVA.

In a factory or other (usually commercial) building with a lot of motors i.e inductive loads KVA is computed a little differently but for residential use (mainly lights and electronics as resistive loads) you can start with just volts and amperes or start with watts.

The UK probably has a code book that includes how to calculate the expected load. The USA does have a code book, the National Electric Code, and load calculation includes such things as 3 watts for every square foot of living space.
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Last edited by AllanJ; 12-19-2012 at 08:57 PM.
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