mcb tripping times...help fried my brain!!

[dyland22]

Thanks robsparky..clear at last..

 

[dyland22]

got my 400ms and 40ms all mixed up and started to question everything!...my mistake..sorry all...think il dye my hair blond tomorrow!!!!!!!!!

 

[NMc]

Very interesting banter

To to clarify my earlier post the 7.67 next the rule of thumb applied to ut so max Zs would be 6.136

 

[robsparky1975]

brainfreeze then:yesnod:

 

[dyland22]

major brain freeze!!.. cheers for the help. :yesnod:

 

[NMc]

yes its was an earlier start this morning

 

[dyland22]

ye..80% wot would you put on the cert for maximum permited zs 7.67 or 6.136

 

[Deleted member 26818]

If it's an NICEIC certificate, or one that asks for the maximum permitted by BS7671, then you would put in the unadjusted figures quoted in BS7671.
I believe ELECSA or perhaps NAPIT certificates, allow either the values in BS7671 or the adjusted values.
Of course the IET Certificates don't require this value.

 

[Inteificio]

Oh that was a funny read =-)

 

[bomjac]

Tsk Tsk Dylan, you have upset the Zs brigade by asking them a question that they think you should know the answer to.

If ever you need to be reminded how complicated these things like Zs, Ze, R1+R2, trip times and RCDs etc are, just have a look through the forums and see the amount of queries about them and the people falling over each other to give their opinion.

I have yet to meet the person who off the top of their head knows everything there is to know about this industry, sometimes people would be better to consider that before launching into a scathing reply.

 

[gooner1984]

Tsk Tsk Dylan, you have upset the Zs brigade by asking them a question that they think you should know the answer to.

If ever you need to be reminded how complicated these things like Zs, Ze, R1+R2, trip times and RCDs etc are, just have a look through the forums and see the amount of queries about them and the people falling over each other to give their opinion.


I have yet to meet the person who off the top of their head knows everything there is to know about this industry, sometimes people would be better to consider that before launching into a scathing reply.

some of the lads who replied know there stuff, ie tony, mogga, and a few others, who are willing to help others out some just want attention and sit behind there computer giving charlie big balls thinking they know everything, no one knows everyone back ground yet all they try to do is belittle everyone, im sure one of the mods have said before, if you dont like the Q thats being ask then move on to the next thread,

where all the love gone:sad:

 

[SimpleSimon]

As a fellow gooner. You can have my love any time.

Sent from my GT-I9100 using Tapatalk

 

[gooner1984]

As a fellow gooner. You can have my love any time.

Sent from my GT-I9100 using Tapatalk

that's the spirit simple's i might need some love after sat when we play the blues :dunce2:

 

[james king]

0.4s for under 32A and above 32A is 5sec as i am aware