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LV on panel door-mounted equipment

I am working on a legacy electrical design, where one of the actions from a recent design review queries the use of 3x 230v door mounted LED for indication of 3ph 400v to the panel's main incoming busbar.


My understanding is that this is not specifically prohibited in 60204-1 but is generally considered to be poor design practice and not as safe as practicable, where I would expect this to be flagged at a design review. Also there is no requirement for this in the end-users site specification. As far as I can see, 60204-1 has specific requirements for touch safety, bonding, wiring and uses of door mounted devices, but it does not specifically state that LV on panel door-mounted equipment is not permitted. Similar issues arise with the use of 230v vent fans on doors etc.


I am expecting that the design will be amended with an ELV alternative, however I wanted to query the regulations for the client.


Parents
  • Many years ago I used to build control panels and we used transformer lamps on panel doors to ensure that the 240 was contained within the cabinet and any bulbs were  only 24v to prevent the danger of live exposure if a lens / bulb was damaged.
Reply
  • Many years ago I used to build control panels and we used transformer lamps on panel doors to ensure that the 240 was contained within the cabinet and any bulbs were  only 24v to prevent the danger of live exposure if a lens / bulb was damaged.
Children
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