General Order 95
 
Section II
 
Definitions of Terms as Used in The Rules of This Order
 
23.3     Sag includes either Normal or Apparent, as defined
in the following:
A.     Normal Sag means the difference in elevation
between the highest point of support of a span and the lowest point of the
conductor in the span at 60° F. and no wind loading (see
App. G, Figure 4
).
B.     Apparent Sag means the maximum departure,
measured vertically, of a wire in a given span from a straight line between
the two points of support of the span at 60° F. and no wind loading. Where
the two supports are at same level, this will be the normal sag (see
Appendix G, Figure 5
).