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Cabling ran ontop of central heating pipes

  • 26-02-2020 7:57pm
    #1
    Ronan|Raven
    Registered Users Posts: 8,140 ✭✭✭


    A quick query for those on here.
    I recently looked at cabling which was ran from a new boiler to the hot water tank.
    Cabling jammed in tight beside piping or sitting on top of it.



    Even if it is rated to X temperature, surely this isnt best practice?





    img2.png


Comments

  • #2
    saabsaab
    Registered Users Posts: 7,737 ✭✭✭saabsaab


    Dangerous, all it takes is a rodent to chew through the cable and you have a problem!


  • #3
    Risteard81
    Registered Users Posts: 2,567 ✭✭✭Risteard81


    saabsaab wrote: »
    Dangerous, all it takes is a rodent to chew through the cable and you have a problem!

    Whilst cables should never be placed on hot pipework (nor is T&E heat resistant) that's a bizarre statement.

    It's always dangerous if a rodent chews through a cable and you always have a problem if that happens. If the insulation and sheath are perished that is dangerous always and everywhere.


  • #4
    adrian92
    Registered Users Posts: 563 ✭✭✭adrian92


    Perhaps just move the cable away from contact with the pipe. Just an inch would be fine


  • #5
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    saabsaab wrote: »
    Dangerous, all it takes is a rodent to chew through the cable and you have a problem!

    So a cable on a hot pipe is more attractive to rodents than not on a hot pipe?


  • #6
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,531 Mod ✭✭✭✭2011


    Bruthal wrote: »
    So a cable on a hot pipe is more attractive to rodents than not on a hot pipe?

    Yes.
    Sure we all prefer hot food


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  • #7
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    2011 wrote: »
    Yes.
    Sure we all prefer hot food

    Piping hot


  • #8
    Ronan|Raven
    Registered Users Posts: 8,140 ✭✭✭Ronan|Raven


    Thanks all, pretty much confirmed the madness of it I had.
    I have contacted the delightful people who ran it in like this.


  • #9
    Ronan|Raven
    Registered Users Posts: 8,140 ✭✭✭Ronan|Raven


    adrian92 wrote: »
    Perhaps just move the cable away from contact with the pipe. Just an inch would be fine


    No where to move it. floorboards sit flat on top. It was jammed in between the pipes and board shoved back down.


  • #10
    adrian92
    Registered Users Posts: 563 ✭✭✭adrian92


    Ronan|Raven wrote: »
    No where to move it. floorboards sit flat on top. It was jammed in between the pipes and board shoved back down.

    Is it possible to lift the floorboards to enable the cable to be freed away from contact with the pipe?


  • #11
    Michelinextra.
    Closed Accounts Posts: 94 ✭✭Michelinextra.


    Nothing will likely happen anyhow

    I'd say any mouse would be electrocuted and trip RCD, if he makes an appearance

    They have a habit of not chewing right down to the copper conductor ime


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  • #12
    Michelinextra.
    Closed Accounts Posts: 94 ✭✭Michelinextra.


    I've never seen any real damage from a pvc cable in contact with a domestic CH flow/return pipe


  • #13
    JL spark
    Registered Users Posts: 195 ✭✭JL spark


    Michelinextra. wrote: »
    I've never seen any real damage from a pvc cable in contact with a domestic CH flow/return pipe

    Try and bend it , it will crack


  • #14
    jeepers101
    Registered Users Posts: 707 ✭✭✭jeepers101


    Throw some lagging on the pipe. Win win.


  • #15
    Effects
    Registered Users Posts: 9,761 ✭✭✭Effects


    Looks like they just didn't want to bother drilling the joists to run the cable through.


  • #16
    Michelinextra.
    Closed Accounts Posts: 94 ✭✭Michelinextra.


    JL spark wrote: »
    Try and bend it , it will crack

    It won't

    Will from a higher temp like a flue pipe


  • #17
    punisher5112
    Registered Users Posts: 24,647 ✭✭✭✭punisher5112


    Pure laziness that is all as above they didn't have to bother cutting a new track or hole.

    Made the job a few minutes quicker.

    Some serious cowboys out there.


  • #18
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    punisher5112 wrote: »

    Some serious cowboys out there.
    No end of them. Astonishing how bad some are.


  • #19
    JL spark
    Registered Users Posts: 195 ✭✭JL spark


    Michelinextra. wrote: »
    It won't

    Will from a higher temp like a flue pipe

    It will , 1980s house we are rewiring has it , hot press and floor boards ,


  • #20
    Michelinextra.
    Closed Accounts Posts: 94 ✭✭Michelinextra.


    JL spark wrote: »
    It will , 1980s house we are rewiring has it , hot press and floor boards ,

    I'll take your word for it

    I'm a long time looking at cables never seen it


  • #21
    byte
    Moderators, Regional North West Moderators Posts: 19,095 Mod ✭✭✭✭byte
    byte


    jeepers101 wrote: »
    Throw some lagging on the pipe. Win win.
    Now that you mention lagging, if they're hot pipes, shouldn't there be lagging on them anyway? Plus could stop any potential friction wear (from expansion/contraction) between the pipes and/or the joists that could cause a leak

    Ronan|Raven: what's the other plastic pipe for? It's to the right and drilled through the joist. If it's a cold pipe, perhaps that would be a better path, as the holes seem big enough.


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  • #22
    adrian92
    Registered Users Posts: 563 ✭✭✭adrian92


    I take the point about lagging but from the op post seems very difficult to insert some form of insulation between the pipe and cable.

    If there was some way to achieve even a small separation??


  • #23
    Effects
    Registered Users Posts: 9,761 ✭✭✭Effects


    byte wrote: »
    Now that you mention lagging, if they're hot pipes, shouldn't there be lagging on them anyway?

    Depending on when the work was done, it probably wouldn't have been standard.


  • #24
    kramer1
    Closed Accounts Posts: 305 ✭✭kramer1


    Hard to tell from the photo, what type of cable is it?


  • #25
    Ronan|Raven
    Registered Users Posts: 8,140 ✭✭✭Ronan|Raven


    There is next to no space to pop insulation on the pipes and still have clearance for the floorboards and cabling.

    The two plastic pipes were ran extra to create a hot water and CH zone. The copper pipes are the original pipes from when the house was built which feed upstairs rads etc.

    The cable, I dont know, there is 0 markings on it. It is ran from boiler to hot water tank to motorised valves.


  • #26
    Ronan|Raven
    Registered Users Posts: 8,140 ✭✭✭Ronan|Raven


    punisher5112 wrote: »
    Pure laziness that is all as above they didn't have to bother cutting a new track or hole.

    Made the job a few minutes quicker.

    Some serious cowboys out there.


    They will be coming back to fix it, will go to regs if I need to.


  • #27
    kramer1
    Closed Accounts Posts: 305 ✭✭kramer1


    Is the cable grey and flat or round and white? Might be heat resistant flex


  • #28
    punisher5112
    Registered Users Posts: 24,647 ✭✭✭✭punisher5112


    kramer1 wrote: »
    Is the cable grey and flat or round and white? Might be heat resistant flex

    It's twin and earth.


  • #29
    kramer1
    Closed Accounts Posts: 305 ✭✭kramer1


    punisher5112 wrote: »
    It's twin and earth.

    Probably not great so


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