There is actually no specific formula used to work out cable size. In order to determine the type of cable you need and the size you need, you need to know the source of the supply, the voltage of the system, the ambient temperature, and the method you plan on laying out the cable.
how to know dc cable sizes
closing stock calculation formula? closing stock calculation formula? closing stock calculation formula? yes how can i do the closing stock calculation?
1) determine load /design current. eg 13kw oven Ib=13000W/230V if 3 phase- 13000w/1.73*400V =56.52A In(circuit breaker size)=60A 2) In/ C1+C2+C3 (c is coefficient of ambience temperature of type of cable referred to BS tables) 3) value of above refer to BS tables for appropiate cale size. eg. based on 60A cable size is 16mm2 pvc/pvc cable size
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Formula
Formula sdr in watershed
A formula.
Displacement/time
A formula.
Three parts of a formula include the equal sign to start the equation, cell references or values used in the calculation, and mathematical operators (+, -, *, /) to perform the calculation.
The degree is based on the design method and the area of operation. there is no fixed formula for its calculation