Content text Testing of Wiring Insulation.pdf
Testing of Wiring Insulation Electrical Wiring Insulation Resistance testing 1.Conductor Conductor Insulation test 2.Conductor Earth Insulation test 3. Earth Resistance test 4.polarity Test Conductor Conductor Insulation (pole to Pole) Test 1.Main Switch “off” 2. Fuse Breaker ”ON” Possition 3. Light switch Plug switch “ON” Possition 4. Load wiring conductor Megar “E” “L” Terminal main switch Terminal Megar (electronic type Button ) Megar Reading Reading Wiring Conductor Conductor Insulation resistance Reading Mega ohm Circuit
Insulation resistance testing Circuit Circuit Junction Box switch board circuit Insulation “5 mega ohm” Conductor Earth Insulation Test 1.Main Switch “off” 2.main switch terminal short circuit 3. circuit fuse Breaker “ON” position 4. Switch (light and plug) “ON” 5. Load 6.Load terminal Short 7. plug socket short Megar “L” terminal main switch short circuit terminal connect Megar Megar Reading conductor Earth Insulation resistance Reading mega Ohm Circuit cuircuit by circuit
Insulation resistance “5 mega ohm” Earth Resistance Three terminal earth resistor Earth megar Earth Resistance earth Resistor earth electrode electrode connect Earth Tester handle (electronic type Button ) Earth tester Reading Reading Earth Electrode Resistance Reading Electrode 1.5 meter Reading Reading Earth Electrode
erath resistance. Electrode Reading erath resistance reading “zero ohm” Zero Indian standerd Lighting circuit earth resistance 8 ohm power circuit 5 ohm power house, sub Station Earth resistance 0.5 Earth resistance Earth Pipe Earth resistance Reading Earth electrode (standerd copper wire ) wiring earth electrode 5 meter Earth resistance Earth Electrode Reading Soil Resistivity Polarity Test Polarity test phase circuit connect 100% phase switch connect Phase circuit Loop Conduncity test