Original Version
Rule 20.1
20.1 Backbone means an auxiliary span support for pull-offs and cross-spans
to trolley contact conductors to which it is approximately parallel.
Strikeout and Underline Version
Rule 20.1
20.1 Bond means an electrical connection from one metallic conductive
element to another for the purpose of maintaining a common electric potential.
Backbone means an auxiliary span support
for pull-offs and cross- spans to trolley contact conductors to which it
is approximately parallel.
Final Version
Rule 20.1
20.1 Bond means an electrical connection from one conductive element to
another for the purpose of maintaining a common eclectic potential.