Voltage drop increases

Voltage drop decreases

Insulation resistance increases

Insulation resistance decreases

Racks in air

Duct pipes

Along buildings

Direct in ground

Serving

Bedding

Armouring

Lead sheath

It prevents burns and fire

To control the excessive heat

To save the time of soldering process

To save the operator from electric shock

Aerial tap joint

Plain tap joint

Rat tail joint

Married joint