New to testing... Ze, PSCC & PEFC

[Spudnik]

Right, Heres my second go..

This is a TNCS, Better photos..

.... have i sussed it?

Correctamondo!!

 

[Guest123]

Spot on mate.

 

[TPES]

Good Good!

So on EIC..

I put in the "External Earth Fault Loop Impedance Ze" = 0.20
& For my "Prospective Fault Current" from my readings what would you put in the "kA" Box ???

 

[Spudnik]

Good Good!

So on EIC..

I put in the "External Earth Fault Loop Impedance Ze" = 0.20
& For my "Prospective Fault Current" from my readings what would you put in the "kA" Box ???

Yep and the PFC box you put your highest value of PEFC or PSCC which is 1.01.

Odd though as normally on a TNCS they are near enough the same, but dont worry about that for now!

 

[TPES]

So from my readings you'd put in "1 kA"

and the maximum this can be is 16.5kA, Is this correct?... and this will be written in the "Short Circuit Capacity" Box on the EIC?

 

[Spudnik]

What certs are you using?

 

[TPES]

What certs are you using?

NIC EIC..

Domestic Electrical Installation Certificate

 

[Spudnik]

So from my readings you'd put in "1 kA"

and the maximum this can be is 16.5kA, Is this correct?... and this will be written in the "Short Circuit Capacity" Box on the EIC?

Ok Nature of Supply etc.

External EFLI Ze is the max so for TNCS its .35 There is then a box underneath for Measured Ze

PFC Single phase is what you measure so 1.01kA

Short Circuit Capacity is normaly 33kA for BS 1361 Type II 100A fuse.

 

[TPES]

Ok thanks J.. I dont know where ive got 16.5 from, ive seen it the max for something.

Where in the red book would i find these figures?

 

[Spudnik]

It is the max for some fuse types.


Have a look in the OSG Page 57

 

[TPES]

Type I, Thats where i got 16.5 kA from.

Thanks for your help lenny and J.. Appreciate it.

 

[Spudnik]

No prob mate.

Invoice is in the post.

 

[Guest123]

Cooking wi gas now son

 

[kung]

Hi Magic-sid
Do you have a lock off kit ? Remember switch off & lock off ! you will fail your assessment if you dont.
Regards
Kung.

 

[TPES]

Hi Magic-sid
Do you have a lock off kit ? Remember switch off & lock off ! you will fail your assessment if you dont.
Regards
Kung.

Cheers Kung... I do have a lock off kit yes, i know its not used on these photos..

Thanks

 

[kung]

Thought you were locking off with gorilla glue or no more nails lol
See not that hard onece you know mate ! best of luck with assessment !
Regards
Kung

 

[TPES]

Ha ha, thanks lads..

Ill be back soon with more simple questions..

 

[Spudnik]

We like them simple.

We dont have much brain power left at the end of the day.

 

[kung]

Yer me neither when i get in the kids and mrs are like that thing off dr who the Obsorbatoff or summit they drain all the sence out of me !

 

[Guest123]

We like them simple.

We dont have much brain power left at the end of the day.

Seconded.