Earthing Bathroom

[Bright.Spark]

Rite Ive asked two people now and am confused. I havent got my 17th edition update untill december but have a re-wire for my part p coming up next week. What I am wondering is do we still need to run a 6mm earth from the bathroom light to the bathroom pipes for bonding? Thanks guys

 

[Sintra]

Have a read of 701.415.2 which will explain when supplementary bonding can be omitted.