An 11kV “pot silicon” is commonly known as a polymer (silicon rubber) insulator used in medium-voltage overhead power lines. It is designed to support and electrically isolate live conductors at 11kV from poles or cross-arms.
Construction
It typically consists of:
* Fiberglass core rod – provides mechanical strength
* Silicone rubber housing (polymer sheds) – gives insulation and water resistance
* Metal end fittings – for mounting to poles and attaching conductors
How It Works
* The insulator prevents current leakage from the live conductor to the pole (earth).
* The silicone surface repels water, reducing flashover during rain.
* It maintains insulation even under contamination like dust or salt.