Hello everybody,
I don't open a new thread and have another question about the insulation diagram in Annex J of IEC 60601-2-18:2009. About example 1 of insulation example 101 in figure 201.J.101, why the insulation path 11 is unnecessary? If insulation path 11 is missing, means internal circuit is directly contacted with the outsurface of endocope, and there will be current leakaged between different parts of outsurface of endocope. Even in the 1997 version of IEC 60601-2-18 requires a b-a insulation between the outer surface of endoscope and any live circuit in the endocope.
I don't open a new thread and have another question about the insulation diagram in Annex J of IEC 60601-2-18:2009. About example 1 of insulation example 101 in figure 201.J.101, why the insulation path 11 is unnecessary? If insulation path 11 is missing, means internal circuit is directly contacted with the outsurface of endocope, and there will be current leakaged between different parts of outsurface of endocope. Even in the 1997 version of IEC 60601-2-18 requires a b-a insulation between the outer surface of endoscope and any live circuit in the endocope.