Cable Size Calculation 1. Basic Formula (3 Phase Load) Current (A)=Power (kw) * 1000/( sqrt 3 * Voltage* PF* Efficiency) 2. Example - Motor Cable Size → Given Motor Power = 7.5kW Voltage = 415V Power Factor = 0.8 Efficiency =0.9 3. Step 1: Calculate Current Current = 7500 /(1.732 * 415 * 0.8 * 0.9) → Current = 14A - 15A → Current = 14-15 A 3. Select Cable Size (Copper) Current (A) Copper Cable Size → For 15 A motor → 2.5 sqmm Cu cable Up to 10 A-1.5 sqmm Up to 16 A-2.5 sqmm Up to 25 A+4 sq mm 4. Aluminium Cable Selection ( Practically site 4 sqmm लेते है for safety ) Aluminium cable approx 1.5 times copper size 2.5 sqmm C u Right arrow 4 sqmm Al Up to 35 A-6 sqmm Up to 50 A-10 sq mm 4 sqmm Cu 6 sqmm Al For 15 A motor→25 sqmm Cu cable (Practically site u 4 sqmm ad for 5. Voltage Drop Check (Important) Voltage Dcrop ( V)= √3* ILR (प्रेसने L = length in km) 6. Quick Thumb Rules (Site Use ) 1 HP motor 1.5-2.5 sqmm Cu 5 HP motor 4 sqmm Cu Technician Practical Tips: 7.5 HP motor → 4-6 ...
India’s dependence on Russian crude oil declined sharply in December 2025, with imports touching their lowest level in nearly three years. Official trade data shows that India bought about $2.7 billion worth of oil from Russia, marking a 38-month low. Russia’s contribution to India’s total crude imports also fell significantly — from 34% in November to around 25% in December. At the same time, oil shipments from the United States increased compared to last year, highlighting a gradual shift in India’s energy sourcing strategy. Recently, U.S. President Donald Trump suggested that India could reduce or even halt Russian oil purchases in exchange for lower American tariffs on Indian goods. However, New Delhi has not confirmed such a deal. Instead, officials say India is simply diversifying suppliers based on market prices and global conditions. Compared with December last year, imports from Russia dropped by 15%, and they were down more than 27% from November levels. In quantity term...