Following is posted for Mel.

The rational for limiting the maximum wrap over the many years was to allow the wire
to be removed (if necessary) after initial soldering.  It was concluded that often we
attach wires to terminals as a design consideration to allow subsequent replacement
of component/elements and there was less chance for damage if the wire did not
overlap itself or contain several wraps making the removal more difficult.  Often we
require these additional design attachments at subsequent assembly build or in
fielded hardware that may not be readily apparent at each phase but would prevent or
complicate the subsequent operation. This is especially true for class three where
these specifications were applied.
There should be adequate strength in the solder connection with a nominal wrap as
prescribed, and these standards allowed disposition which did not necessarily require
rework.
Mel Parrish
ACI/EMPF
One International Plaza, Suite 600
Philadelphia, PA 19113
[log in to unmask]
www.empf.org
610 362 1200 x238
610 362 1290 Fax

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