Quess the Fault tripping mcb wired in Fp200

[333rocky333]

Well what was the fault then.
It is a supply to an outside celler cooler 3phase .

Dead short between all 3 phases at the triple pole contactor in celler.
Ip44 Isolator in the celler, approx 3 met from mcb and about 20 met away from unit.

This looked a bit suspect
Not the problem though.
Clue to answer in the first pic

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• 333rocky333
• 20 Oct 2008
• 1

dodgy tape join

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• 333rocky333
• 20 Oct 2008
• 1

dodgy tape join

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• 333rocky333
• 20 Oct 2008
• 1

dodgy tape join

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• 333rocky333
• 20 Oct 2008
• 1

dodgy tape join

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• 333rocky333
• 20 Oct 2008
• 1

tape joint revealed

Rf you will know this one.

 

[Spark123]

2 possibilities spring to mind:
The lack of proper cable entry resulting in the cable being exposed to a sharp edge and vibration so the metal cut through the cable

Atrocious joint in the cable letting water in.

 

[stardanny]

Have you had a nice pint?........

 

[mattylad]

Super duper strong cable tie has crushed the cable shorting it all

 

[RF Lighting]

It looks as if it been slashed just before it passes through the roof?

 

[333rocky333]

It looks as if it been slashed just before it passes through the roof?

Close, what happens with white Fp

 

[RF Lighting]

I'd have got that straight away if your pictures were clearer

I'll see if anyone else knows

 

[VanSolo]

Wodents I weckon.

 

[stardanny]

slash cable?
missing link on repair joint?
missing furrel?
water damage?
cable tie too tight?
Rat damage?

Don't know.
not very clear picture.

 

[333rocky333]

No pleasing you lot

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• 333rocky333
• 20 Oct 2008
• 1

other end of the cable outside, ground level

So why the short on the 3 phases then

 

[stardanny]

Maybe when it rain, it pour into damage cable to the unit, short out 3 phase?

or been pulled out?

Dan.

EDIT Wrong spelling.

 

[mdbalson]

A little bit off the current question, but it looks like there is no armaflex on the suction pipe.

 

[RF Lighting]

Motor bearings seized would be my bet.

 

[securespark]

But would that put a dead short across all 3 phases?

 

[333rocky333]

Right, this is outside

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• 333rocky333
• 20 Oct 2008
• 1

other end of the cable outside, ground level

Inner cores not damaged.
Unit switched off on its own built in isolator (not shown)

Big puddle when rains

Ip44 isolator down in the celler 20 metres away.