Mistake In 4th Edition Code of Practice?

[acvc]

Possible senior moment here, but the book arrived this morning, I've opened it up, P39 Chapter 4, 4.2 RCD Protection, and it says about portable equipment used outdoors ...."Any RCD used to provide this protection is required to have a residual operating current not exceeding 30mA at 40ms". Shouldn't that be 300ms at 30mA maximum disconnection time allowed being 400ms for circuits up to 32A?

Or do i need a strong coffee?

Thanks.

 

[i=p/u]

Stick to 3rd edition like me... Is there going to be an update course

 

[acvc]

Don't know about an official C&G2377 update course ipu, but I went to a Megger organised update seminar at a NAPIT training centre last week, free, meant to last 45 mins but took two and a half hours.

Do you know what date the 4th ed comes into effect? Or has it already?

Cheers.

 

[Richard Burns]

Possible senior moment here, but the book arrived this morning, I've opened it up, P39 Chapter 4, 4.2 RCD Protection, and it says about portable equipment used outdoors ...."Any RCD used to provide this protection is required to have a residual operating current not exceeding 30mA at 40ms". Shouldn't that be 300ms at 30mA maximum disconnection time allowed being 400ms for circuits up to 32A?

Or do i need a strong coffee?

Thanks.

I think they are abbreviating too much here. The RCD should have an operating current <=30mA and an operating time of <=40ms at 5x I delta n.

Codes of practice are guidance only so I think they apply from when they are published, so it is applicable now.

 

[i=p/u]

nothing new then, seaward held one in Belfast last week too.... was considering it but thought