12 | nVent.com/ERICO
Authorization may be required by the
particular service providers before bonding
of these grounds takes place. The size of the
bonding cable depends on local standards,
but should be at least mm
(/ AWG)
or larger.
In some circumstances, it may be necessary
to use a Potential Equalization Clamp
(PEC) which effectively bonds all grounds
to the same potential under transient
conditions, to satisfy service providers.
Conductor to Grounding
System Connection
When determining the length of nVent
ERICO Ericore conductor required in a
particular situation it is prudent to make the
Figure : Various methods of isolating the ground system
connection to the grounding system at the
first available opportunity. The practice of
running nVent ERICO Ericore downconductor
for long horizontal lengths at the ground
level to reach a designated earth point is
discouraged. Instead, a lower termination
should be made to a ground rod upon
reaching the ground level. Then a separate
length of conventional grounding conductor
should be connected from the ground rod to
other earthing points as required.
Labelling
The labelling of Inspection Wells or grounding
systems to local requirements is the
responsibility of the customer / installer.
Surface Area of Isolation
Ericore Cable Downconductor
Lower Termination
Inspection Well
mm ( in.) or greater to ensure
it is below the frost line.
Insulated
Conduit
mm
/ (AWG)
Insulated Copper Cable
Start of
Grounding
System
Ground Rod
m ( in.)
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