A screwed down testing clamp is an earthing accessory used in electrical and lightning protection systems to provide a secure, temporary, or permanent connection point for testing earth resistance or continuity.
Description:
It is made from high-conductivity materials such as brass, copper alloy, or galvanized steel, ensuring reliable electrical contact.
The clamp features a screw mechanism that allows it to be firmly tightened onto an earth rod, copper tape, or conductor.
Its design enables test instruments (like an earth tester or megger) to be easily connected and removed without disturbing the main earthing system.
It ensures a low-resistance, stable connection during testing and helps maintain safety and accuracy in measurements.