547.10 Equipotential Planes and Bonding of Equipotential
Planes. The installation and bonding of equipotential
planes shall comply with 547.10(A) and (B). For the purposes
of this section, the term livestock shall not include
poultry.
(A) Where Required. Equipotential planes shall be installed
where required in (A)(1) and (A)(2).
(1) Indoors. Equipotential planes shall be installed in confinement
areas with concrete floors where metallic equipment
is located that may become energized and is accessible
to livestock.
(2) Outdoors. Equipotential planes shall be installed in
concrete slabs where metallic equipment is located that
may become energized and is accessible to livestock.
The equipotential plane shall encompass the area where
the livestock stands while accessing metallic equipment
that may become energized.
(B) Bonding. Equipotential planes shall be connected to
the electrical grounding system. The bonding conductor
shall be solid copper, insulated, covered or bare, and not
smaller than 8 AWG. The means of bonding to wire mesh
or conductive elements shall be by pressure connectors or
clamps of brass, copper, copper alloy, or an equally substantial
approved means. Slatted floors that are supported
by structures that are a part of an equipotential plane shall
not require bonding.