Hi Chris:
> What is supplemental insulation? Is it the same as supplementary
insulation
> and if so, how can a winding wire be rated as providing supplementary
> insulation?
supplemental = supplementary
Merriam Webster's Collegiate Dictionary, 10th:
supplemental (adjective): serving to supplement.
supplementary (adjective): added or serving as
a supplement.
For thin insulations such as coatings...
Basic insulation requirements are simply that
of electric strength. This can be accomplished
with one "layer" of insulation on the wire.
Supplemental (supplementary) insulation
requirements are electric strength plus some
degree of mechanical robustness. This is
accomplished with two "layers" of insulation
on the wire. This probably derives from the
0.4 mm minimum thickness for supplemental
insulation; instead of 0.4 mm thickness, two
"layers" are deemed equivalent.
Reinforced insulation is a combination of
basic and supplementary insulations. This is
accomplished with three "layers" of insulation
on the wire.
Read "layers" as independent coatings or very thin
sheet wrapped about the wire, or equivalent
construction.
Best regards,
Rich
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