Electrical Testing Measuring Prospective Fault Current PFC (How to do a PSCC and PEFC Test)

Student training aid for the live test how to measure prospective fault current PFC using a MFT Megger tester. Includes a full demonstration of how to measure PFC current. We measure both the prospective short circuit current (PSCC) between Line and Neutral (between live conductors) and the prospective earth fault current (PEFC) between line and the earthing conductor.

Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E.

You can follow me day by day on Facebook, Instagram, Twitter and TikTok lookout for "GSH Electrical.

#GSHElectrical #Electricaltrainingvideos

[ursamajor]

If you select playback at 0.75 x speed, it's just about right 👍

[deanpaterson]

Excellent video once again Gaz, if the main fuse information is worn away, do you need to contact the DNO to find out what type is installed?

[planetconker]

I cant see the setting on the MET. Is it just set to loop just like Ze?

[Xxxcappie]

Does one measure the PSC reading against the CIRCUIT BREAKER "Upstream " from where you are testing and see that we are within the acceptable limits. ? From what I can gather there are 2 circuit breakers we are testing between.

[avfczoff]

If I have a PFC of 1.55kA at my consumer unit & I have SA1 BS 3036 fuses with a short circuit capacity of 1kA in my consumer unit does this comply?

[leewhite]

I was taught to put both the neutral and earth cables into the neutral terminal for the short circuit test. why would that be?

[myantcolony]

can you do a video of this for a three phase supply with a megger mft?? Thanks

[edwardspray]

Has this now changed? Is it not both results added or multiplied?

[sylvianorah]

Which value of the short circuit capacity do you record on test schedules?
Is it the Icn or ics?
In this case the icn is 6000A and the ics is 3000A

[alinili]

Guys please show the testers setting as well 2-3 wire and if possible on fluke and megger

[Jman]

Hi, I know that unlike the initial Ze test that the main earth should stay connected, but should the main switch also be off? I've been told by some people that the main switch should be on to flow through all parallel paths, but I've also been told that you should leave it off when doing your PEFC and PSCC. An answer would be much appreciated as I have the AM2 next week and this is pretty much the only confusing part I have left, as I've pretty much sussed everything else. I'd like to think as long as the main earth is connected that the switch doesn't need to be on.

[cahillkieran]

Certain places would give you the road for working with no gloves, safety galsses or long sleeves. Good video but also pig tails in Earths as mentioned by others can also be condemned no matter how good they may look .
just constructive criticism . other than that good video and fair play for putting the videos up .

[deanprice]

Forget about the testing, that doesn't matter when you have piggy tails on the main earthing. What do coils do? They make inductors. What do inductors do? They don't like change in current flow. Oppose it for what of a better word, like a break. The system is a fail, even if the meter says pass.