Breaker type

[hightower]

What would a wylex nb05 5a breaker fall under in terms of the time current curves?

 

[Leesparkykent]

Bs3871

 

[Pete999]

what would a wylex nb05 5a breaker fall under in terms of the time current curves?

bs 8371

 

[Leesparkykent]

You will have to look through an older addition of the regs for the graph.

 

[hightower]

Just found a thread now you both pointed me to the standard. 16th edition and earlier it seems.

 

[Pete999]

You will have to look through an older addition of the regs for the graph.

Just googled it but can't export it

 

[hightower]

So if this device is still in use somewhat why haven't they continued to include it in the regs

 

[Pete999]

So if this device is still in use somewhat why haven't they continued to include it in the regs

A question for the IET me thinks

 

[Leesparkykent]

Just found a thread now you both pointed me to the standard. 16th edition and earlier it seems.

Think they was withdrawn in 1994.

 

[hightower]

So a spark new to the trade would have to buy a 16th just to look at the time current values if he came across these?

 

[hightower]

Just found this document. Published in 2011 but could be useful if the recent factors are applied?

https://www.google.co.uk/url?sa=t&s...m-xidRhCoopU4BoSQ&sig2=8XR2wEoIF7EJvvqtnovlUw

 

[Leesparkykent]

You can normaly find the graphs on line if you hunt about. TLC normally have lots of info on the 16th edition.

 

[hightower]

Cheers fellas, appreciate the help

 

[Leesparkykent]

If you can get copies of older additions they are handy to have especially if you do EICRs.

 

[hightower]

I understand the difference between type b c and d, but what's the difference between type 1 2 and 3?