Electrical Cables Sizes Calculation

July 30, 2023 Post a Comment

Electrical cables sizes calculation

Ok, let's dive into calculations…

<ol class="X5LH0c"><li class="TrT0Xe">Consumed Load = Total Load · Demand Factor: Consumed Load in KW = 80 · 1 = 80 KW.</li><li class="TrT0Xe">Consumed Load in KVA = KW/P.F.: Consumed Load in KVA = 80/0.8 = 100 KVA.</li><li class="TrT0Xe">Full Load Current = (KVA · 1000) / (1.732 · Voltage): Full Load Current = (100 · 1000) / (1.732 · 415) = 139 Amp.</li></ol>

How do you calculate cable size in kva?

Calculation:

Consumed Load= Total Load x Demand Factor.
Consumed Load in KW= 80 x 1 =80KW.
Consumed Load in KVA= KW/P.F.
Consumed Load in KVA =80/0.8=100KVA.
Full Load Current= (KVAx1000) / (1.732xVoltage)
Full Load Current= (100×1000) / (1.732×415) = 139Amp.
Calculating Correction Factor of Cable from following data :

How do you calculate cable diameter?

Utilize a standard formula to calculate the cross-section area of that one wire using the area formula for a circle, i.e., area equals the square of the diameter multiplied by 3.14 (pi) divided by four. As an example, a 2-inch wire would have an area of 3.14 square inch because 2 x 2 x 3.14 divided by 4 = 3.14. 3.

How do I calculate 11kv cable size?

So the 240 mm for a cable is enough for this condition. So the resistance value is 0.098. And the

What is Max kW for 6mm cable?

Electric Shower Power Ratings and Power Cable Information Showers up to 7kw may carry a 6mm cable as long as the shower unit is within 18 metres of the fuseboard. Fuses and switches should be rated at 32 amps. Showers up to 9kw may carry a 6mm cable as long as the shower unit is within 18 meters of the fuseboard.

How many kW can a 10mm cable take?

kW Electric Shower Rating	Recommended Cable Size
9000 (9 kW)	10mm²
9500 (9.5 kW)	10mm²
10,000 (10 kW)	10mm²
10,500 (10.5 kW)	16mm²

How do I convert kVA to kW?

So kilovolt-amps are equal to kilowatts divided by the power factor.

What is kVA to kW?

P (power) = I (current) × V (voltage) That means that in DC circuits, 1 kVA is equal to 1 kW. That means that 1 kVA is equal to 1,000 watts. In alternating current (AC) circuits, where kVA to kW conversion is mostly used, the kVA to kW conversion depends on the power factor (PF).

What is 1 kVA in amps?

One kVA is equivalent to 1,000-volt amps. The electrical efficiency is typically expressed as a power factor between zero and one.

What is the size of 33kV cable?

Tender Item: 33 KV Armoured Aluminium XLPE Cable for having sizes 3C x 185 sq. mm & 3C x 400 sq. mm.

What is 11KV to 33kV?

The 11kV lines are used in residential areas and is what feeds the local transformers, which then distributes power to the buildings in the area. 33kV lines on the other hand involve much higher voltages and are used to distribute power from one small sub-station to another.

What is the size of HT cable?

SIZES: 35 Sq.mm up to 1000 Sq.mm in Single Core Cables. 35 Sq.mm to 400 Sq.mm in Multi Cores Cables.

Can 6mm cable carry 32 amps?

6mm twin and earth cable (which this almost certainly is) can be backed up by a maximum of a 32a MCB, even lower if other factors are involved.

Can 6mm carry 40 amps?

The table below shows the current carrying capacity of 6mm twin and earth cable. This cable is mainly used for domestic cooker and shower circuits rated at 40A AMP.

What is 10mm cable used for?

10mm twin and earth cable is often used for shower installations and cooking circuits.

How many amps can a 10mm carry?

NOMINAL CROSS SECTIONAL AREA mm2	REFERENCE METHOD A* (IN CONDUIT IN WALL) Amps	REFERENCE METHOD C* (CLIPPED DIRECT) Amps
10mm	44 Amps	64 Amps

What is 16mm cable used for?

The table below shows the current carrying capacity of 16mm twin and earth cable. This cable is mainly used for large electric domestic or commercial cooker and shower circuits rated at 50A AMP.