I wonder if anyone here can shed some light on this matter ! -
According to BS7671 reg 701.414.3 SELV or PELV supplys in zones 0 / 1 / 2 as described in reg 414.3 (iv) shall not be used , therefore my question is this , we have previously used IP67 rated 12 / 24 v DC switching mode power supplies to feed colour changing LED downlights in pool areas etc - does the change to BS7671 now make this non compliant ?? and do i now require the extra expense of an isolation transformer ?? I recently asked this question during a seminar on the new AM2 regs , and nobody came up with an answer !?!
Thanks .