Home |
Search |
Today's Posts |
|
UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to uk.d-i-y
|
|||
|
|||
Resistance heating cable problem ?
I have a length of resistance heating cable that is just a fine sprial
of resistance wire. It is double insulated and is rated at 240v ac and 60 watts / 12 ft length. I am oing use it as bottom heat in a propagating unit. Having never used this stuff before, how do I terminated it. Just straight into plug ?? and then via RCD. What about the heating effect on the plug. Or is there a proper way ?? |
#2
Posted to uk.d-i-y
|
|||
|
|||
Resistance heating cable problem ?
gray wrote:
Having never used this stuff before, how do I terminated it. Just straight into plug ?? and then via RCD. What about the heating effect on the plug. Or is there a proper way ?? You don't need or want the heating operation between the propogating unit and the wall, so you'll want to either solder/crimp it to a length of flex or connect it via a lump of connector block or similar. -- Scott Where are we going and why am I in this handbasket? |
#3
Posted to uk.d-i-y
|
|||
|
|||
Resistance heating cable problem ?
I have a temp controller on the side of the unit, that I will cable it
too. Bit I think I will terminate cable else where, then run a normal TWE to the contoller. But I am not sure what it is I have got. All of the the underfloor heating cable are 2 core. This is only single core. Any ideas |
#4
Posted to uk.d-i-y
|
|||
|
|||
Resistance heating cable problem ?
gray wrote:
I have a temp controller on the side of the unit, that I will cable it too. Bit I think I will terminate cable else where, then run a normal TWE to the contoller. But I am not sure what it is I have got. All of the the underfloor heating cable are 2 core. This is only single core. Any ideas If it is single core, then you will have to run it in a loop. It is possibly designed to be embedded in thermally conductive medium such as soil or a floor and so you should not have any more than necessary in air. So terminate in a water proof box to connect via copper cable into the controller. I would certainly use an rcd for safety in the greenhouse. In fact I would not use mains in the green house at all and stick to low voltage but that is my/your choice. 12 foot @ 240v = 60 watts means the cable is about 48 ohms per foot. 12 one foot lengths in parallel gives 4 ohms. Run that on 15 volts - say a battery charger safely in the house or high up on a shelf will give you the same 60 watts but a lot safer. Bob |
#5
Posted to uk.d-i-y
|
|||
|
|||
Resistance heating cable problem ?
Scott M wrote:
gray wrote: Having never used this stuff before, how do I terminated it. Just straight into plug ?? and then via RCD. What about the heating effect on the plug. Or is there a proper way ?? You don't need or want the heating operation between the propogating unit and the wall, so you'll want to either solder/crimp it to a length of flex or connect it via a lump of connector block or similar. If its nichrome, which it probably is, forget solder. It simply wont touch it. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Converting low resistance pot to high resistance ? | Electronics Repair | |||
Resistance per Meter for copper cable (R1+R2) | UK diy | |||
Intermittent static when viewing cable, cable ready problem? | Electronics Repair | |||
Intermittent static when viewing cable, cable ready problem? | Home Repair |