PFC with Fluke 1651

[gtownspark]

Hi Guys

I use a Fluke 1651. When testing Loop Impedance the tester calculates Prospective Fault Current by diving the measured mains voltage by the Loop Impedance and it displays the result at the bottom of the display as Ik PFC, I was wondering if this method that the fluke uses is the same as another tester would use to 'measure' the pfc? and if this figure is acceptable to be used on my certification?

My NICEIC inspector made a comment yesterday that cast doubt over this and I'd rather not ring him up to ask him!!

 

[Engineer54]

What sort of comment did he make then?? It will be quite interesting to know!!!

 

[gtownspark]

I was describing how I would take a Ze reading and I finished by telling him that the pfc reading would be displayed at the bottom of the screen, he said no thats not the pfc thats just a guide, he didn't say anymore just made a note for me to read chapter 8 of the NIC EIC testing and inspection manual...very helpful!!

 

[MvP Electrics]

i always take down that value u mentioned above and then i take a live to neutral value and which ever is higher will be my PFC value i put on cert.

 

[gtownspark]

Thats a good point, perhaps he was referring to the fact that until you've taken a line to neutral reading you won't know which value is the highest.

 

[gpz900jim]

i have a fluke 1651b, and i do the same. Read out the psc and pefc and use the higher, whats wrong with that? Maybe they would like you to calculate it, if that is the case I dont know how to do it ??

 

[gpz900jim]

The meter gives you the pefc and the psc, maybe thats what he meant, you said it gives you the pfc. ?