pfc psc ??

[gpz900jim]

Could someone explain to me how to calculate Psc and pefc? Thanks a lot

 

[scotsparky]

Ohms law voltage over Zs
PScC prospectice short circuit Current
PeFC prospectice earth Fault current

 

[mike2790]

or whip your megger out.

is it zs or ze you use to calculate?

 

[Bradzz]

Ze is the one

 

[telectrix]

pfc = 230/Ze...... sssssimplesss

 

[morph]

you will not be able to calc the pssc unles somehow you can get the resistance of the line and neutral
you can calc pefc by using ze

 

[Risteard]

PEFC will include parallel paths. Ze won't.

 

[Bradzz]

Not if you remove it. providing it is safe to do so.

 

[Sparky Ninja]

Not if you remove it.

Remove what?

 

[Bradzz]

Removing the earthing conductor. As telctrix has said

 

[Sparky Ninja]

Why would you remove the earthing conductor?

 

[Bradzz]

Have you looked at all the posts?

 

[Sparky Ninja]

Have you looked at all the posts?

Yes I have.

Have you?

 

[Bradzz]

To confirm you have an earth.

 

[Bradzz]

Sorry but you have lost me. come on spit it out, whats wrong.