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The subscribed demand may be assessed by taking account of the loads of all the appliances that are intended to operate simultaneously, as shown in the table below:

Sum of loads of all the appliances that are intended to operate simultaneously
Subscribed Demand
Up to 3,300 W
3.3 kVA
From 3,300 to 6,600 W
6.6 kVA
From 6,600 to 11,000 W
11.0 kVA
From 11,000 to 13,200 W
13.2 kVA *
From 13,200 to 19,800 W
19.8 kVA *
* Three-phase installation

 

Subscribed Demand / Service Circuit-Breaker Equivalence

For control of the subscribed demand, we will install a circuit-breaker with a rating according to your subscribed demand, as shown in the table below:

Subscribed Demand
Service Circuit-Breaker
3.3 kVA
1x15 A
6.6 kVA
1x30 A
11.0 kVA
1x50 A
13.2 kVA
3x20 A
19.8 kVA
3x30 A

 

Examples may help you in selecting your subscribed demand:

If you intend to use electricity for:

Television x 1
Radio x 1
Dehumidifier x 1
Fan x 1
Rice cooker x 1
Lighting x 1
Refrigerator x 1
Electric iron x 1


Addition

Air-conditioner x 2
Washing machine x 1
Electric heater x 2
Dishwasher x 1
Only if not more than two electrical appliances are operated simultaneously.

Addition

Water heater x 1
Electric heater x 4
Electric oven x 1
Dishwasher x 1
Washing machine x 1
Air-conditioner x 4
Only if not more than four electrical appliances are operated simultaneously.

 

We recommend you a subscribed demand value of 3.3 kVA.
We recommend you a subscribed demand value of 6.6 kVA.
We recommend you a subscribed demand value of 11.0 kVA.

The above appliances mentioned in the above examples are just a reference, you may consult a registered electrician who will help you to choose the adequate subscribed demand.

 


 

Loads of Electrical Appliances

To simplify the calculation of your subscribed demand, we provide you the most common appliances and their corresponding loads in the table below:

Appliance Load(W)
Lighting 25 - 500
Radio 20 - 100
Television 40 - 200
Refrigerator 400 - 1,000
Vacuum cleaner 300 - 1,000
Electric Iron 400 - 1,000
Toaster 100 - 300
Fan 20 - 60
Rice cooker 500 - 2,000
Dehumidifier 100 - 300
Air-conditioner 1000 - 3,000
Electric heater 1000 - 3,000
Water heater 1500 - 3,000
Washing machine 500 - 3,000
Dishwasher 2,000 - 3,000
Electric oven 1,000 - 5,000

 

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