3 phase problem after spark did 5 year safety inspection

[jimthegent]

Needs to be powered down and clamp removed, i can see it is already pinching the RHS cable sheath.

Once clamp removed photograph the back side of it, remove the LHS cable and photographc the back plain of board, should tell you everything you need to know, Merry Xmas

Hi can't thank you enough for the advice what would photos of the back of the clamp and board show or what should I look for ?

 

[westward10]

What did they say caused it.

 

[jimthegent]

What did they say caused it.

An overloaded board but it's run fine for 5 years and it just happend to blow a few hours after they wiggled the wires plus each phase is perfectly balanced with 9 feeds

 

[jimthegent]

What did they say caused it.

I've attached a picture of were the feeds are they are the ones on the rhs blue ones

 

[westward10]

An overloaded board but it's run fine for 5 years and it just happend to blow a few hours after they wiggled the wires plus each phase is perfectly balanced with 9 feeds

That wasn't an overload that was a dead short, a short they created.

 

[snowhead]

An overloaded board but it's run fine for 5 years

So is it still "overloaded" or has that been corrected?

 

[jimthegent]

That wasn't an overload that was a dead short, a short they created.

Thanks again pal really appreciate it

 

[jimthegent]

So is it still "overloaded" or has that been corrected?

Never was plus there's breakers on the pdus there's 9 sockets and we are always on about 50% of max amps the units cooling runs on a separate board and there's no other power pulls plus it's winter so the system isn't stressed due to high temps

 

[pc1966]

Cable clamp look suspicious....

It looks too small for that wire size, or is it just fitted strangely?

 

[jimthegent]

It looks too small for that wire size, or is it just fitted strangely?

You getting warm mate not as warm as that tail got the consensus seems to be the outer casing got nipped when refitting but I'm seeing if any sparks have another take on it