RCDs tripping at several properties

[Russell Dawson]

Hi, I'm a resident at a Park Home site (glorified caravans) with about 50 houses. On Saturday a.m. my fuse box RCD tripped out but only for the sockets. I assumed that I was at fault and proceeded to isolate appliances to find the culprit. That afternoon it went again. At that time I became aware that several (11) of my neighbours were having the same problem. It has continued to trip on about 15 other occasions over the ensuing days. There is no pattern to it. The houses are scattered around the site. It happens at the same time for each house. It only affects the socket circuit. We've had professionals on site who go around scratching their heads. What is going on? Has anybody had a similar experience? It must be an outside influence in my view. I have suggested that the boxes in the houses may be of a similar make and perhaps slightly more sensitive to a spike but that was dismissed out of hand. Any clues?

 

[bigspark17]

Hi @Russell Dawson

I had a remarkably similar fault/problem last year on a static caravan site & very similar was the cause, can you answer me out of interest are your homes site fed or DNO fed?