Street lighting bursting into flames

[Luke Smith]

Hello,
Recently had a problem with the head of our street lights busting into flames.
Several of them went up today, on a few different phases across the motorway.
Any ideas what this could be?
We had a fair amount of rain through the night

 

[UNG]

Would you like to add some more information or do we have to polish the crystal ball

 

[Luke Smith]

What do you want to know...

 

[Andy78]

Wait til the repair vans turn up then ask the guys what they think it might be

 

[Luke Smith]

Thanks for your useful advice.

 

[snowhead]

Lost neutral at the DB.

 

[Darkwood]

Yep, agree, lost Neutral on the 3phase set-up, the common floating N bar will end up with a raised potential to any phase of up to 400v hence the fireworls you witnessed... similar occurs when theives pinch the N/E center tap cable from the sub-station and you appliances at home start to blow up or catch fire.

 

[electric will]

I agree with all the above