Ralph, et al,
IEC 62368-1, the Hazard Based Standard, is developed in a way that it
is intended to provide more complete coverage of the hazards encountered from
electrical equipment in its scope and provide more options for manufacturers in
meeting those requirements (albeit this will
IEC 63386-1 seems to introduce a lot of new terms I have not seen used in other
IEC standards. ( but I haven't read everything out there)
I would add that a "skilled person" perhaps is a "qualified person" , but
qualification is often associated with formal training by an accredited
institute,
The definition of "reliable earthing" appears in clause 5.6.7 of 62368-1, and
it seems reasonable. Equipment that has a permanent earth connection, or
equipment with an industrial "Type B" plug, is considered to have a reliable
earth connection. However, for the ordinary "Type A" plugs used on
'Reliable' earthing would be per construction and test requirements of the
scoped standard. Note the term "Reliable Earthing" is not defined in the IEV,
but the various earthing and bonding terms are covered. As we all know, the
earthing bond itself is supposed to be the current path for a singl
The term Reliable Earthing is an interesting one. Does it mean that the
earthing bond is not expected to fail (single fault) and so provides two levels
of protection, as in ‘reinforced” ? I remember arguing this point many years
ago in a product safety review at another company and meeting so
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