Condensation Heaters
Condensation Heaters
(OP)
I've installed a prefabricated switchroo. It comes on a module onLegs.
The temperature in the module is kept at 20degC
However as the MV cables wnter the switchgear through a gland plate in the floor. A questin has been raised regarding the posibility of condensation in the switchgear.
There is a steel plate gland on the bottom of the switchgear and approximately 200mm below that there is an aluminium plate. The question is is the radiant heat fro the side walls of the MV switchgear enough to over come the cooling effect from the possibly colder plate on the bottom of the switchgear.
I'm not really sure where to start, I've passed the query on to the switchgear manufacturer but would like to try to figure it out on my own in the background.
Is the danger from when warm air would would fill a Cold MV compartment, rathern thatn a danger from Cold Air Getting into the MV Compartment.
The Switchgear will be installed in the middle of the Uk so the Air temperature will be -5Deg to 30 Deg.
The temperature in the module is kept at 20degC
However as the MV cables wnter the switchgear through a gland plate in the floor. A questin has been raised regarding the posibility of condensation in the switchgear.
There is a steel plate gland on the bottom of the switchgear and approximately 200mm below that there is an aluminium plate. The question is is the radiant heat fro the side walls of the MV switchgear enough to over come the cooling effect from the possibly colder plate on the bottom of the switchgear.
I'm not really sure where to start, I've passed the query on to the switchgear manufacturer but would like to try to figure it out on my own in the background.
Is the danger from when warm air would would fill a Cold MV compartment, rathern thatn a danger from Cold Air Getting into the MV Compartment.
The Switchgear will be installed in the middle of the Uk so the Air temperature will be -5Deg to 30 Deg.






RE: Condensation Heaters
Your installation sounds fairly typical other than the above - you might want anti-condensation heaters if the board could be de-energised for any prolonged period.
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If we learn from our mistakes I'm getting a great education!
RE: Condensation Heaters
You say " you might want anti-condensation heaters if the board could be de-energised for any prolonged period."
My question is how do I determine that
1) What a prolonged period is, is it days , weeks?
2) Given 1 how do I determin if I need it. I can just put them in to be safe but I prefer to have some sort of quantative back-up.
RE: Condensation Heaters
Bill
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