Roland chung
Trusted Information Resource
Hello all,
I am drawing an insulation diagram for class II equipment with BF type applied part which employs a 60950 power supply. Barrier A between Mains (240 V) and secondary circuit (48 V) meets 2 MOOP/ 1 MOPP (288 V). There is a barrier B between secondary (48 V) and applied part (12 V). Since the barrier A is 2 MOOP/ 1 MOPP @ 288 V, the barrier B shall be:
2 MOPP (60 V)
1 MOPP (XX V)
XX = either 240V or 288V.
My question is which working voltage shall be chosen and why.
Thanks,
Roland
I am drawing an insulation diagram for class II equipment with BF type applied part which employs a 60950 power supply. Barrier A between Mains (240 V) and secondary circuit (48 V) meets 2 MOOP/ 1 MOPP (288 V). There is a barrier B between secondary (48 V) and applied part (12 V). Since the barrier A is 2 MOOP/ 1 MOPP @ 288 V, the barrier B shall be:
2 MOPP (60 V)
1 MOPP (XX V)
XX = either 240V or 288V.
My question is which working voltage shall be chosen and why.
Thanks,
Roland
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