immersion heater

[the chippie]

can sombody tell me why the blue wire on the immersion heater keeps getting hot and melting its casing

 

[SMB]

Scary.

Is it heat resistant cable?

If so, what is the csa of the heat resistant cable?

 

[nickblake]

There is a couple of reasons this could happen : 1 : the cable isnt heat resistance .2 , there is a loose connection of the terminal at the heater,another posabilty is old cable. always ensure the heaters are using heat resistant cable and the connections are tight and not corroded

 

[the chippie]

this setup has two heaters in it one at the top one at the bottom same sort of cable top ones ok bottom one keeps getting hot

 

[SMB]

you didnt answer my questions ?

Like Nick said....check your terminations.

Loose terminations = heat

 

[nickblake]

That doesnt suprise me as there is more heat at the bottom , the bottom heater is the ECo 7 element and the top is the normal / boost element , very often these heaters are wired in 1.5mm i always wire in 2.5mm as SMB has said check the csa of the cable , and ensure its heat resistant , if this continues get the element replaced and use a new piece of heat resistant cable and sleeve this with some extra heat resistant sleeving

 

[SMB]

is 'buytle' a thing of the past?

can't spell it, but some of you might get my drift I reckon.












feeling hot hot hot....

 

[IQ Electrical]

is 'buytle' a thing of the past?

can't spell it, but some of you might get my drift I reckon.

Ask for 2.5mm 3183 TQ

Is the bottom heater on an 'off peak' supply?

If so then it will probably be 'on' far more than the top element which only heats a much smaller portion of the tank.












feeling hot hot hot....

Ask for 2.5mm 3183 TQ

Is the bottom heater on an 'off peak' supply?

If so then it will probably be 'on' far more than the top element which only heats a much smaller portion of the tank.

 

[the chippie]

thanks i ve taken all that on board i ll seeif i can sort it

 

[J.C.E]

use 2.5 butyl flex, is intended for emersion heater wiring

 

[J.C.E]

is 'buytle' a thing of the past?

can't spell it, but some of you might get my drift I reckon.












feeling hot hot hot....

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

 

[IQ Electrical]

use 2.5 butyl flex, is intended for emersion heater wiring

3183 TQ is 'Butyl' flex

 

[SMB]

IQ and Joe, cheers for the correct spelling.......

BUTYL....it just flows off the tongue........B U T Y L

 

[IQ Electrical]

Beautiful Butyl

 

[SMB]

Beautiful heat resistant buytl.

 

[SMB]

its all rubbery and feels nice......buytl.

 

[Knobhead]

I'm geting woried by this thread