![]() ![]() You can click through to FastQuote, our online quotation tool, to select a cable that meets your size and specification requirements. In both BS and IEC calculations, the KW calculation is based on a power factor of 0.8. How to calculate unit in electricity bill Youll need to find out how much energy. The formula states that the phase current is equal to 1000 times the power in kilowatts, divided by the square root of 3 times the power factor and the line. 100 x 10 1000 Watt-Hour 1 Kilowatt-Hour (kWH) 1 unit (on your meter). 115-V, 800-C, 1 KW 18.96 D-C 6- Volt Wind Driven Generator outfit. The cable size results for International standard cable are calculated from IEC 6: Low Voltage Electrical Installations, selection and erection of electrical equipment – Wiring systems and are based on 230V and 415V voltage drop. P(kW) 3 × PF × VL-L(V) This formula relates the phase current I (in amps) to the power P (in kilowatts), power factor PF, and line to line RMS voltage VL-L (in volts). It covers Low Voltage armoured AWA and SWA cables, insulated cables including twin & earth and 6491X, and insulated and sheathed cables in both PVC and LSZH such as H07ZZ-F and SY cable. The results for British standard cable are calculated from BS7671 (18th Edition) Requirements for Electrical Installation, IEE Wiring Regulations, and are based on 230V and 415V voltage drop. Complete the sections below to calculate your results. Eland Cables' Cable Calculator can help you determine the most appropriate cable size for your installation against British and IEC standards. A rule of thumb states that you should multiply the power in hp by 746 to get the power in watts. Calculator below can be used to convert from kW to amps three phase, single phase or DC. ![]()
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