Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 40 replies
  • Subscribers 32 subscribers
  • Views 3420 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Caravan Park

Grobbyman
I have to replace 6 pitch boxes on a touring van caravan  site.

So six pitch boxes with 4 van hookup points per box, each hookup point protected by a 10A 30mA RCCB.

Unfortunately I've also discovered that the site is wired as a ring in 6mm SWA, buried direct in ground.


Any thoughts on max fuse size to protect a 6mm ring?


Regards

George
Parents
  • 0
    Yep ref cascading like-minded RCDs.

    Given the (theoretically possible) 7% RCD failure rate and the theoretical 95% successfull life saving ability of RCDs the I prefer the (ideally but not reality very theoretical) improved rate two cascaded RCDs might achieve - especially in differing locations (possibly differing "Stiction" risks) . Might make us feel a bit safer.

    RCDs are wonderfull things. How did we do without them? Well we did, just a fusewire between us and eternity but we survived it.

    The problem is that many folks now take more risks thereby eroding the safety enhancements.


    I do prefer to err towards RCDs cascaded  sometimes though.
Reply
  • 0
    Yep ref cascading like-minded RCDs.

    Given the (theoretically possible) 7% RCD failure rate and the theoretical 95% successfull life saving ability of RCDs the I prefer the (ideally but not reality very theoretical) improved rate two cascaded RCDs might achieve - especially in differing locations (possibly differing "Stiction" risks) . Might make us feel a bit safer.

    RCDs are wonderfull things. How did we do without them? Well we did, just a fusewire between us and eternity but we survived it.

    The problem is that many folks now take more risks thereby eroding the safety enhancements.


    I do prefer to err towards RCDs cascaded  sometimes though.
Children
No Data

Community Rules & Guidelines