I'm looking at a datasheet for a UK power connector. It has connections for Line (brown), Neutral (blue), Protective Earth (green/yellow), and E1 and E2 (yellow). It describes the E1 and E2 terminals as "2 functional earths (E1, E2) for high integrity "earth loop"". This is something new to me. Can someone describe how E1 and E2 are used?
THANKS!
Harold