Toolstation have this socket tester for sale TIS Socket Tester With Loop & RCD Check - https://www.toolstation.com/tis-socket-tester-with-loop-rcd-check/p51520
It says it checks if loop impedance and RCD are 'OK'. Has anyone used this plug in tester? Does anyone know what it actually checks with regards loop impedance and RCD's? 'OK' doesn't mean a great deal!
Cheers
It says it checks if loop impedance and RCD are 'OK'. Has anyone used this plug in tester? Does anyone know what it actually checks with regards loop impedance and RCD's? 'OK' doesn't mean a great deal!
Cheers