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ETL 1110-9-10(FR)
5 Jan 91
Where:
RN =
Resistance-to-electrolyte of "N" number
of anodes
RA
=
Resistance-to-electrolyte of a single
horizontal anode
N
=
Number of anodes
p
=
Electrolyte resistivity in ohm-cm
PF
=
Paralleling factor (table 3-5)
CC
=
Spacing between anodes in ft. (The
spacing between anodes is taken as the
center-to-center
distance
between
horizontal anode.)
As before, when equation 1-11 is applied to horizontal anodes,
it yields approximate results. This is because the equation is
based on vertical anodes.
However, the results are
sufficiently accurate for cathodic protection design.
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