I have a problem with lighting on the ground floor of a retail premesis.
The lighting which is a mixture of 240V recessed flourescent down lights and low voltage 12V 50 Watt Down lights.
The lights, especially the flourescent, seem to dim for no reason, some days they are fine others they are not. One possible suggestion by manufacturers is that there is an air flow over the flourescents which cools the tubes and affects performance, however the problem still occurs on sunny calm days. It also seems to affect other 240V 150 Watt pendant type lights also on the ground floor.
All circuits are fed through a consumer unit fitted with MCB’s via light switches. The maximum cable length is 20M of 1mm/2 drawing 3 Amps across separate circuits. Lighting on the first floor of the premesis with the same mixture of lights remains unnaffected.
Anybody have any ideas as to what could be causing this?
Thanks in advance for your help.
The lighting which is a mixture of 240V recessed flourescent down lights and low voltage 12V 50 Watt Down lights.
The lights, especially the flourescent, seem to dim for no reason, some days they are fine others they are not. One possible suggestion by manufacturers is that there is an air flow over the flourescents which cools the tubes and affects performance, however the problem still occurs on sunny calm days. It also seems to affect other 240V 150 Watt pendant type lights also on the ground floor.
All circuits are fed through a consumer unit fitted with MCB’s via light switches. The maximum cable length is 20M of 1mm/2 drawing 3 Amps across separate circuits. Lighting on the first floor of the premesis with the same mixture of lights remains unnaffected.
Anybody have any ideas as to what could be causing this?
Thanks in advance for your help.