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Wrong polarity on kitchen edison batten holders:Coding.

hertzal123
Doing a condition report where the diy tenant has gone mad with surface plastic conduit downstairs to

add extra light points to varius rooms.In the kitchen are 6 edison holders on ceiling besa boxes.Noticed polarity

was wrong on the 1st one checked.My 1st thought for a coding was C2,but the lamp would need removing to

expose the live terminals,the same as a bc lampholder,which has the same danger of touching live parts .So would C3 be more appropriate?The live terminal

contacts when the lamp is fully inserted.

                                                    Regards,

                                                           Hz
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  • 0
    That's an interesting one. We have just been discussing lamp-holders.


    I suggest C1 or C3.


    The idea with ES is that the line is the central pin so that a finger, for example, comes into contact with N before L and any shock is just across the finger tip.


    Quite right that in normal use, no conductor is exposed. But consider a broken lamp. When you reach up with a pair of pliers, you grasp L instead of N.


    In practical terms, with the lamp-holders mounted on BESA boxes, it should be easy enough to fix - just charge an extra tenner or two.
Reply
  • 0
    That's an interesting one. We have just been discussing lamp-holders.


    I suggest C1 or C3.


    The idea with ES is that the line is the central pin so that a finger, for example, comes into contact with N before L and any shock is just across the finger tip.


    Quite right that in normal use, no conductor is exposed. But consider a broken lamp. When you reach up with a pair of pliers, you grasp L instead of N.


    In practical terms, with the lamp-holders mounted on BESA boxes, it should be easy enough to fix - just charge an extra tenner or two.
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