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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.

Many Thanks


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Old 12-19-2012, 04:25 PM   #2
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Old 12-19-2012, 08:46 PM   #3
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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.
The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.

Last edited by AllanJ; 12-19-2012 at 08:57 PM.
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