• Using multi core cable instead of single core

    From leenowell@21:1/5 to All on Sat Apr 13 15:54:28 2024
    Hi all,

    I am doing some wiring outside to put some sockets for my outdoor kitchen. The cable will be channeled into a wall and rendered over and then there will be a short exposed section (behind a wall) and then into a cupboard. I have some multi strand rubber
    cable (HO7RN-F) which I believe is suitable for use outside so was wondering if using this would be ok - ideally within regs. I didn't see why being multi strand Vs single core really matters?

    Many thanks in advance

    Lee.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Andy Burns@21:1/5 to All on Sat Apr 13 17:57:17 2024
    bGVlbm93ZWxsIHdyb3RlOg0KDQo+IEkgYW0gZG9pbmcgc29tZSB3aXJpbmcgb3V0c2lkZSB0 byBwdXQgc29tZSBzb2NrZXRzIGZvciBteSBvdXRkb29yIA0KPiBraXRjaGVuLiBUaGUgY2Fi bGUgd2lsbCBiZSBjaGFubmVsZWQgaW50byBhIHdhbGwgYW5kIHJlbmRlcmVkIG92ZXIgYW5k IA0KPiB0aGVuIHRoZXJlIHdpbGwgYmUgYSBzaG9ydCBleHBvc2VkIHNlY3Rpb24gKGJlaGlu ZCBhIHdhbGwpIGFuZCB0aGVuIGludG8gDQo+IGEgY3VwYm9hcmQuwqAgSSBoYXZlIHNvbWUg bXVsdGkgc3RyYW5kIHJ1YmJlciBjYWJsZSAoSE83Uk4tRikgd2hpY2ggSSANCj4gYmVsaWV2 ZSBpcyBzdWl0YWJsZSBmb3IgdXNlIG91dHNpZGUgc28gd2FzIHdvbmRlcmluZyBpZiB1c2lu ZyB0aGlzIHdvdWxkIA0KPiBiZSBvayAtIGlkZWFsbHkgd2l0aGluIHJlZ3MuIEkgZGlkbid0 IHNlZSB3aHkgYmVpbmcgbXVsdGkgc3RyYW5kIFZzIA0KPiBzaW5nbGUgY29yZSByZWFsbHkg bWF0dGVycz8NCg0KTm8gcHJvYmxlbSB3aXRoIHVzaW5nIHN1aXRhYmxlIHN0cmFuZGVkIGZs ZXguICBOb3QgYSByZXF1aXJlbWVudCBidXQgaXQgDQptYXkgaGVscCB0byB1c2UgZmVycnVs ZXMuDQoNCg==

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Rumm@21:1/5 to leenowell on Sun Apr 14 01:18:24 2024
    On 13/04/2024 16:54, leenowell wrote:
    Hi all,

    I am doing some wiring outside to put some sockets for my outdoor
    kitchen. The cable will be channeled into a wall and rendered over and
    then there will be a short exposed section (behind a wall) and then into
    a cupboard.  I have some multi strand rubber cable (HO7RN-F) which I
    believe is suitable for use outside so was wondering if using this would
    be ok - ideally within regs. I didn't see why being multi strand Vs
    single core really matters?

    Many thanks in advance

    Nothing stopping you using it if it is of adequate conductor CSA for the application in question.

    --
    Cheers,

    John.

    /=================================================================\
    | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------|
    | John Rumm - john(at)internode(dot)co(dot)uk | \=================================================================/

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From leenowell@21:1/5 to All on Sun Apr 14 11:34:03 2024
    Thanks very much both

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cursitor Doom@21:1/5 to see.my.signature@nowhere.null on Sun Apr 14 18:07:40 2024
    On Sun, 14 Apr 2024 01:18:24 +0100, John Rumm
    <see.my.signature@nowhere.null> wrote:

    On 13/04/2024 16:54, leenowell wrote:
    Hi all,

    I am doing some wiring outside to put some sockets for my outdoor
    kitchen. The cable will be channeled into a wall and rendered over and
    then there will be a short exposed section (behind a wall) and then into
    a cupboard.  I have some multi strand rubber cable (HO7RN-F) which I
    believe is suitable for use outside so was wondering if using this would
    be ok - ideally within regs. I didn't see why being multi strand Vs
    single core really matters?

    Many thanks in advance

    Nothing stopping you using it if it is of adequate conductor CSA for the >application in question.

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis? That would seem to make
    sense to me. Flex tends to cost more than single core but the current
    handling of both (if sized correctly) is the same as will be the
    insulation if it's specified for mains voltages. So if the OP's got
    his flexible stuff for free, he's good to go I guess.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Joe@21:1/5 to Cursitor Doom on Sun Apr 14 20:23:41 2024
    On Sun, 14 Apr 2024 18:07:40 +0100
    Cursitor Doom <cd@notformail.com> wrote:

    On Sun, 14 Apr 2024 01:18:24 +0100, John Rumm
    <see.my.signature@nowhere.null> wrote:

    On 13/04/2024 16:54, leenowell wrote:
    Hi all,

    I am doing some wiring outside to put some sockets for my outdoor
    kitchen. The cable will be channeled into a wall and rendered over
    and then there will be a short exposed section (behind a wall) and
    then into a cupboard.  I have some multi strand rubber cable
    (HO7RN-F) which I believe is suitable for use outside so was
    wondering if using this would be ok - ideally within regs. I
    didn't see why being multi strand Vs single core really matters?

    Many thanks in advance

    Nothing stopping you using it if it is of adequate conductor CSA for
    the application in question.

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis? That would seem to make
    sense to me. Flex tends to cost more than single core but the current handling of both (if sized correctly) is the same as will be the
    insulation if it's specified for mains voltages. So if the OP's got
    his flexible stuff for free, he's good to go I guess.

    Power wiring used to be stranded, though not many strands. Ring mains
    used 7/.029, which is roughly equivalent to 2.5mm^2, with lighting
    normally 3/.029.

    --
    Joe

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From The Natural Philosopher@21:1/5 to Joe on Mon Apr 15 05:25:11 2024
    On 14/04/2024 20:23, Joe wrote:
    On Sun, 14 Apr 2024 18:07:40 +0100
    Cursitor Doom <cd@notformail.com> wrote:

    On Sun, 14 Apr 2024 01:18:24 +0100, John Rumm
    <see.my.signature@nowhere.null> wrote:

    On 13/04/2024 16:54, leenowell wrote:
    Hi all,

    I am doing some wiring outside to put some sockets for my outdoor
    kitchen. The cable will be channeled into a wall and rendered over
    and then there will be a short exposed section (behind a wall) and
    then into a cupboard.  I have some multi strand rubber cable
    (HO7RN-F) which I believe is suitable for use outside so was
    wondering if using this would be ok - ideally within regs. I
    didn't see why being multi strand Vs single core really matters?

    Many thanks in advance

    Nothing stopping you using it if it is of adequate conductor CSA for
    the application in question.

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis? That would seem to make
    sense to me. Flex tends to cost more than single core but the current
    handling of both (if sized correctly) is the same as will be the
    insulation if it's specified for mains voltages. So if the OP's got
    his flexible stuff for free, he's good to go I guess.

    Power wiring used to be stranded, though not many strands. Ring mains
    used 7/.029, which is roughly equivalent to 2.5mm^2, with lighting
    normally 3/.029.

    The general rule used to be if the cable doesn't move, use the cheaper
    solid core.

    IIRC armoured cables are stranded...
    --
    New Socialism consists essentially in being seen to have your heart in
    the right place whilst your head is in the clouds and your hand is in
    someone else's pocket.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Rumm@21:1/5 to Cursitor Doom on Mon Apr 15 17:16:14 2024
    On 14/04/2024 18:07, Cursitor Doom wrote:
    On Sun, 14 Apr 2024 01:18:24 +0100, John Rumm
    <see.my.signature@nowhere.null> wrote:

    On 13/04/2024 16:54, leenowell wrote:
    Hi all,

    I am doing some wiring outside to put some sockets for my outdoor
    kitchen. The cable will be channeled into a wall and rendered over and
    then there will be a short exposed section (behind a wall) and then into >>> a cupboard.  I have some multi strand rubber cable (HO7RN-F) which I
    believe is suitable for use outside so was wondering if using this would >>> be ok - ideally within regs. I didn't see why being multi strand Vs
    single core really matters?

    Many thanks in advance

    Nothing stopping you using it if it is of adequate conductor CSA for the
    application in question.

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis?

    In general, yes. For larger CSA cables even the fixed wiring cable is
    stranded (although fewer heavier strands) to keep it workable.

    That would seem to make
    sense to me. Flex tends to cost more than single core but the current handling of both (if sized correctly) is the same as will be the
    insulation if it's specified for mains voltages. So if the OP's got
    his flexible stuff for free, he's good to go I guess.




    --
    Cheers,

    John.

    /=================================================================\
    | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------|
    | John Rumm - john(at)internode(dot)co(dot)uk | \=================================================================/

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From RJH@21:1/5 to John Rumm on Tue Apr 16 11:05:26 2024
    On 15 Apr 2024 at 17:16:14 BST, John Rumm wrote:

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis?

    In general, yes. For larger CSA cables even the fixed wiring cable is stranded (although fewer heavier strands) to keep it workable.

    Is there a big difference for, say 10mm2 T&E?

    I'm about to put in place the wiring for a shower and it's quite a tortuous route. I'd bought single strand as it's fixed, but could easily swap it over for stranded if it's going to be significantly easier to thread.

    --
    Cheers, Rob, Sheffield UK

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Fredxx@21:1/5 to RJH on Tue Apr 16 20:17:42 2024
    On 16/04/2024 12:05, RJH wrote:
    On 15 Apr 2024 at 17:16:14 BST, John Rumm wrote:

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis?

    In general, yes. For larger CSA cables even the fixed wiring cable is
    stranded (although fewer heavier strands) to keep it workable.

    Is there a big difference for, say 10mm2 T&E?

    I'm about to put in place the wiring for a shower and it's quite a tortuous route. I'd bought single strand as it's fixed, but could easily swap it over for stranded if it's going to be significantly easier to thread.

    I confess to not seeing single strand 10mm2 cable, I've only seen cable
    of that size with what must be 7 strands!

    Having to pull the cable through voids and spaces might become a little difficult!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From RJH@21:1/5 to Fredxx on Wed Apr 17 08:22:11 2024
    On 16 Apr 2024 at 20:17:42 BST, Fredxx wrote:

    On 16/04/2024 12:05, RJH wrote:
    On 15 Apr 2024 at 17:16:14 BST, John Rumm wrote:

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis?

    In general, yes. For larger CSA cables even the fixed wiring cable is
    stranded (although fewer heavier strands) to keep it workable.

    Is there a big difference for, say 10mm2 T&E?

    I'm about to put in place the wiring for a shower and it's quite a tortuous >> route. I'd bought single strand as it's fixed, but could easily swap it over >> for stranded if it's going to be significantly easier to thread.

    I confess to not seeing single strand 10mm2 cable, I've only seen cable
    of that size with what must be 7 strands!

    Having to pull the cable through voids and spaces might become a little difficult!

    Indeed! The electrician bent my arm a bit - strongly advised 10mm for future proofing. He didn't mention strands though - I thought one strand for fixed
    was the general rule.

    it was a bit of a double take lifting the 25m reel - heavy! This is what I've got:

    https://www.toolstation.com/pitacs-twin-earth-cable-6242y-grey/p25574
    --
    Cheers, Rob, Sheffield UK

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Rumm@21:1/5 to RJH on Wed Apr 17 11:05:05 2024
    On 16/04/2024 12:05, RJH wrote:
    On 15 Apr 2024 at 17:16:14 BST, John Rumm wrote:

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis?

    In general, yes. For larger CSA cables even the fixed wiring cable is
    stranded (although fewer heavier strands) to keep it workable.

    Is there a big difference for, say 10mm2 T&E?

    Much depends on what you are doing with it - the main difference is
    getting it into and out of enclosures and switches.

    For a shower, the shower end and the CU end are usually not too bad, the ceiling switch can be a pig though :-)

    (and the electrician was right - makes sense to use the larger cable -
    the cost difference is not that much and both will be a pain to wire. So
    you may as well endure it the once and have the option of pretty much
    any shower in the future.

    I'm about to put in place the wiring for a shower and it's quite a tortuous route. I'd bought single strand as it's fixed, but could easily swap it over for stranded if it's going to be significantly easier to thread.


    --
    Cheers,

    John.

    /=================================================================\
    | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------|
    | John Rumm - john(at)internode(dot)co(dot)uk | \=================================================================/

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Sam Plusnet@21:1/5 to John Rumm on Wed Apr 17 21:07:01 2024
    On 17-Apr-24 11:05, John Rumm wrote:
    On 16/04/2024 12:05, RJH wrote:
    On 15 Apr 2024 at 17:16:14 BST, John Rumm wrote:

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed,
    if ever, whereas the multi-strand (flex) is more for appliances which
    need to be moved around on a regular basis?

    In general, yes. For larger CSA cables even the fixed wiring cable is
    stranded (although fewer heavier strands) to keep it workable.

    Is there a big difference for, say 10mm2 T&E?

    Much depends on what you are doing with it - the main difference is
    getting it into and out of enclosures and switches.

    For a shower, the shower end and the CU end are usually not too bad, the ceiling switch can be a pig though :-)

    Not kidding. I've replaced both the ceiling switch, and the shower in
    this house three times over the years.
    Wiring for the showers wasn't a problem. Those ceiling switches were a different matter altogether.

    --
    Sam Plusnet

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From RJH@21:1/5 to Sam Plusnet on Thu Apr 18 04:46:27 2024
    On 17 Apr 2024 at 21:07:01 BST, Sam Plusnet wrote:

    On 17-Apr-24 11:05, John Rumm wrote:
    On 16/04/2024 12:05, RJH wrote:
    On 15 Apr 2024 at 17:16:14 BST, John Rumm wrote:

    Would I be right in assuming that the single core stuff is intended
    for fixed instalations where the routing will not often be distrubed, >>>>> if ever, whereas the multi-strand (flex) is more for appliances which >>>>> need to be moved around on a regular basis?

    In general, yes. For larger CSA cables even the fixed wiring cable is
    stranded (although fewer heavier strands) to keep it workable.

    Is there a big difference for, say 10mm2 T&E?

    Much depends on what you are doing with it - the main difference is
    getting it into and out of enclosures and switches.

    For a shower, the shower end and the CU end are usually not too bad, the
    ceiling switch can be a pig though :-)

    Not kidding. I've replaced both the ceiling switch, and the shower in
    this house three times over the years.
    Wiring for the showers wasn't a problem. Those ceiling switches were a different matter altogether.

    I did wonder why the electrician specified a wall mounted isolation switch . . .

    --
    Cheers, Rob, Sheffield UK

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)