tripping times?

[debutant]

Can someone tell me the tripping times for a 10ma and 30ma rcd please?

 

[Sintra]

Have a look on page 59 GN3 it might give you the answer.

 

[debutant]

Don't have books to hand any chance of letting me know?

 

[Sintra]

Sorry can't be bothered getting up from my seat and going to get the book.

 

[debutant]

No worries.

 

[Sintra]

Here have a look at mine.

 

[pete555]

Can someone tell me the tripping times for a 10ma and 30ma rcd please?

do you really not know them

are you spark or a trainee

 

[Dean Williams]

I've never noticed that before! socket RCDs are BS7288 and max trip time on 1x is 200ms. thats my lesson learnt for the day.

 

[Octopus]

I've never noticed that before! socket RCDs are BS7288 and max trip time on 1x is 200ms. thats my lesson learnt for the day.

Every day is a learning day.:smilielol5:

 

[debutant]

Seem to remember 200ms at x1 and 40ms at x5
Is that right?

 

[Sintra]

Seem to remember 200ms at x1 and 40ms at x5
Is that right?

Have a look at my previous post.

 

[Octopus]

Seem to remember 200ms at x1 and 40ms at x5
Is that right?

Which BS number RCD are you testing?

 

[Elmer BeFuddled]

Seem to remember 200ms at x1 and 40ms at x5
Is that right?

I seem to remember that being taught as the times for the circuit. But now my head is starting to ache.

 

[telectrix]

300mSec. at x1. unless it's a TT system, where it's 200mSec if the RCD is used for fault protection.

 

[Jdsparky]

I believe it changed from 200 to 300 when it went from 16th to 17th edition, for 61008 and 61009 at least.

 

[Silly Sausage]

I believe it changed from 200 to 300 when it went from 16th to 17th edition, for 61008 and 61009 at least.

Could be right there.
I always thought it was 40ms @ 5x because that's a fifth of 200. 300 is just confusing!

 

[SirKit Breaker]

It depends on the BS number. GN3, BGB and OSG has all the info needed

Cheers...........Howard

 

[Elmer BeFuddled]

Could be right there.
I always thought it was 40ms @ 5x because that's a fifth of 200. 300 is just confusing!

If we stick to the 200ms, least we'll be edging on the safe side. Though I can't recall seeing one above 54ms in my limited time of being let loose with an MFT (and that turned out to be my winky connections!).

 

[Hawk81]

I tested 2 Hager 30mA RCD's on Friday and 1x= 115ms on both RCD.

 

[Jdsparky]

The 40ms at 5x stayed the same, don't understand why they changed the 1x to 300 really anyway as its not 5x40 which made made sense before.....the 5x test is the only one it has to pass anyway I seem to recall, although I would be changing the Rcd if it failed 1x anyway
i also have had over 100ms trip times before on one side of the cycle usually.

 

[Silly Sausage]

Aye, fifth of an Amp, you're into dangerous territory, <<40ms the better!

With any luck, Professor Cockburn will be along soon to enlighten us all further.