Thumb Rule for any Electrical Projects / Hobby / DiY

Thumb Rules for Electrical Fitment

mandatory for any project

list of thumb rule listed herewith

  • Cable Capacity
  • Current Capacity of Equipment
  • Earthing Resistance
  • Minimum Bending Radius
  • Insulation Resistance
  • Lighting Arrestor
  • Transformer
  • Diesel Generator
  • Current Transformer
  • Quick Electrical Calculation
  • Contactors Types

Thumb Rules

Contactors Specifications

a few more Rules

Quick Electrical Calculation

  • 1HP = 0.746KW
  • 1KW = 1.36HP
  • 1Watt = 0.846 Kla/Hr
  • 1Watt = 3.41 BTU/Hr
  • 1KWH = 3.6 MJ
  • 1Cal = 4.186 J
  • 1Tone = 3530 BTU
  • 85 Sq.ft Floor Area = 1200 BTU
  • 1Kcal = 4186 Joule
  • 1KWH = 860 Kcal
  • 1Cal = 4.183 Joule
Star Connection

  • Line Voltage = √3 Phase Voltage
  • Line Current = Phase Current

Delta Connection

  • Line Voltage = Phase Voltage
  • Line Current = √3 Phase Current

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.