External columns led

[Ross hewlett]

hi all , after some advice , after install 3no circuits for 15no lampposts which are wired in swa and buried 500mm deep in plastic duct I’m wondering whether or not that these circuits need rcd protection . The lampposts are led too and my past experiences have taught me that leds on turning off trip the rcbos, any advice well appreciated in advance

 

[HandySparks]

There's no requirement for RCD protection of buried SWA cable or of external light fittings.

 

[telectrix]

what he said ^^^^^^. unless of course , it's a TT, and you need RCD to provide fault protection.