Where to look for answers??

[Phil Cook]

Hi All, I am currently studying at home to become an electrician and have been going through the regs book for 2 hours now and need to know where the answers would be to the following questions as I feel like Im going blind. lol Questions Are

1) If a fault current of 330A flows what would be the disconnection time for a 45A BS1361 fuse?

A) 5 secs B) 1 secs C) 0.1 secs D) 0.2 secs

2) How much current would need to flow for a disconnection time of 0.1 to 5 secs for a 10A BSEN 60898 type B circuit breaker?

A) 50 Sec B) 200A C) 100A D) 50A

Just a pointer in the right direction would be really appreciated.

Cheers.

Phil.

 

[NozSpark]

Bull Rush Charts in the Appendices in the Back

What Canoey is saying is,,,, the graphs in the back of the book

 

[m4tty]

Question 2s defo not answer a

 

[Sharpend]

What Canoey is saying is,,,, the graphs in the back of the book

Noz, he wanted a point in the right direction not the Answer, I thought Canoey put it very eloquently.

 

[shed69]

You won't find 1361 I don't think.... Try the bs88-3....???

 

[shed69]

Red regs I guess!!! Gone........

 

[Doc Hudson]

You won't find 1361 I don't think.... Try the bs88-3....???

That is correct, the BS definitions are still in appendix 1 and the table listing for 1361 is now referenced to BS88-3 2010

Doc H.