Christmas lights or lack of.....!

I would be grateful for some fresh thinking with this.

We have problems with the towns christmas lights but only with one particular product type.

The lights are Festive Connect Pro - fairy lights with a flash bulb every metre or so.

Every circuit is supplied by its own rectifier/driver through a 16 amp type A RCBO.

The RCBOs are housed in a IP67 manufactured events board.

Four circuits have now failed - two of which failed since working perfectly last night.

All other circuits without the flash lamps but from same manufacturer are working fine.

Have we missed something with the flash lamp business - do the rcbos not like the product ????

The lights are in their fourth christmas season.

The RCBOs are Chint branded as supplied.

Its an umetered supply, used for christmas only.

Parents
  • The RCBOs are type C.

    The one circuit of flash lamp product supplied by a different sub station in the town continue to work normally.

     Which whilst slightly annoying I think proves that the supply variation destroyed the other 1200 metres.

    Two days spent replacing the full quantity with NON Flash product !

    Thanks to one and all for your thoughts.

Reply
  • The RCBOs are type C.

    The one circuit of flash lamp product supplied by a different sub station in the town continue to work normally.

     Which whilst slightly annoying I think proves that the supply variation destroyed the other 1200 metres.

    Two days spent replacing the full quantity with NON Flash product !

    Thanks to one and all for your thoughts.

Children
  • Which whilst slightly annoying I think proves that the supply variation destroyed the other 1200 metres.

    I suspect the flash ones would have some extra electronics, perhaps making them more sensitive to overvoltages. Were there any SPDs in circuit?

       - Andy.