Shree Samarth Switchgear & Transmission Pvt. Ltd.

1. Envelop type susp. Clamp

Generally used in normal suspension assemblies up to 220KV & in pilot assemblies for 400KV & above, hence also known as pilot clamps. Installation of Envelop type Susp. Clamps is comparatively easy. These clamps offer less power loss & heating due to hysteresis effects at higher currents.

2. Bolted Type Tension clamps

These Clamps are made up of permanent mould aluminium alloy to reduce hysterisis and eddy current losses. These type of clamps are widely used in distribution lines, transmission lines up to 110KV & substations. The main feature of bolted tension clamp is ease in installation. Properly designed clamps can offer slip/mechanical strength up to 95% of conductor UTS.

3. Free Center Susp. Clamps

These clamps are widely used for line conductors up to 400KV voltage systems, with or without P A rods. The main features of this clamp are 1. Comparatively low power loss 2. High mechanical efficiency as centrally supported 3. Maximum swing mobility hence minimum moment of inertia resulting in minimum stresses on conductor during oscillation due to wind.

4. PG CLAMPS

Parallel groove clamps serve mainly for transmitting current between the interconnected conductors. They have grooves conforming to conductor sizes which ensures sufficient surface contact and low electrical resistance. The clamp body is made up of aluminium alloy cast out of permanent mould or made out of extruded alumimium.