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60 Amp Junction Box.

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Mornin' All,

                      I came upon a burnt out terminal on a Crabtree ceiling 50 Amp. shower cord switch yesterday. The cables had become so hot after 3 years of use that the line P.V.C. had completely fallen off the conductor and had left a horrible black smelly sticky mess.


I had to replace the shower cord switch, but the damaged cable was then too short after removing the softened copper and damaged insulation.


So I had to make a trap in the room upstairs, which turned out to be wooden boards over other wooden boards to access the cable below with a view to lengthening one cable. I used a new 60 Amp junction box as it allows two large conductors to overlap and be secured by 4 screws. It is solid and of good quality.


It is this item.....

https://www.toolstation.com/60a-junction-box/p98775?store=N2&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&gclid=EAIaIQobChMIufLP1ZD25gIVybTtCh2YWAeiEAQYASABEgJZkvD_BwE


Z.
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    My current role involves a lot of domestic properties. We have, on average, one shower switch burnt out per week due to loose terminals. I have 2 other very experienced sparkies with me. We all make sure the terminals are as tight as we can get them, yet there are still failures from loose terminals that we know we have tightened properly when we installed them.



     




    So, do you think that the problem is due to the modern single screw shower switch terminals as opposed to twin screw terminals? Or poor manufacture? The vibration of the clunky switch mechanisms, Or another reason? 


    Z.

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  • 0




    My current role involves a lot of domestic properties. We have, on average, one shower switch burnt out per week due to loose terminals. I have 2 other very experienced sparkies with me. We all make sure the terminals are as tight as we can get them, yet there are still failures from loose terminals that we know we have tightened properly when we installed them.



     




    So, do you think that the problem is due to the modern single screw shower switch terminals as opposed to twin screw terminals? Or poor manufacture? The vibration of the clunky switch mechanisms, Or another reason? 


    Z.

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