Megger mft1553

G bizzle · Apr 9, 2018

Can anybody tell me what settings and leads to use with the megger mft1553. On the live testing. Am i right with what ive put?

Pscc pfc phase+ neutral phase+ cpc

Pefc record highest

Ze disconnect main cpc

high loop

phase + cpc

red green

Zs no trip loop

Phase cpc neutral

Red green black

Andy™ · Apr 9, 2018

now were getting somewhere but still wrong

for Zs you dont need non trip if there is no RCD. you would only need red & green too

PSCC & PEFC are wrong. re-read PFC, PEFC & PSCC

G bizzle · Apr 9, 2018

Pscc phase+neutral

Pefc phase+cpc

PFC Red+green

Record highest

Ze

Remove main cpc

Phase+cpc

High loop Red+green

Zs

Rcd protected circuits

No trip red green black

Phase+neural+cpc

No rcd

PFC red+green

Phase+neutral

Phase+cpc

apprentice87 · Apr 10, 2018

Is that supposed to be some kind of coded message??

If it is meant to be instructions it is wrong anyway..

john..

G bizzle · Apr 10, 2018

Whats the right way then

G bizzle · Apr 10, 2018

Megger mft1553 live tests

Ze: remove main cpc

Test cpc+phase

Green+red high loop setting

Zs: no trip loop

End of circuit rcd protected

Red green black

PFC pfc loop

Red green black

Chewbacca · Apr 10, 2018

you only need the black lead for 'no-trip' tests

SLIPSHOD & SLAPDASH · Apr 10, 2018

G bizzle said:
Megger mft1553 live tests

Ze: remove main cpc

Test cpc+phase

Green+red high loop setting

Zs: no trip loop

End of circuit rcd protected

Red green black

PFC pfc loop

Red green black

A major safety issue here - although its a live test the main switch must be off before removing the main cpc

binky · Apr 10, 2018

good point, especially if solar is fitted on the house. Inverters are quite good at chucking some voltages down the earth!

binky · Apr 10, 2018

@G bizzle it would be useful if you gave us some info about your background in electrics ie are you fully trained, short course trained, are you a DiYer, or are you still training? It would seem, from your posts, you don't have much idea about testing, or at least how to use a multi-function tester. You will get a much better response from the members on here if you are open and honest with us.

Sharpend · Apr 10, 2018

https://talk.electricianforum.co.uk/topic/36611-megger-mft1553/?

Merge of posts for clarity? @Admin 3

G bizzle · Apr 10, 2018

Love tests with megger mft1553

Ze isolate db from incoming supply

Remove main cpc

High loop setting red green leads

Cpc+phase

Record results

Pfc reconnect main cpc

Red green black leads pfc setting

Test between line neutral + cpc

Record results kA

Zs Ze+(r1+r2)=zs

Protected circuits by rcd

Red green black leads no trip loop

Line neutral cpc

Record results

Megger mft1553

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