nVent.com/ERICO | 33
system can be considered only if it is
designed by nVent ERICO Application
Engineers and all components are
manufactured and supplied by nVent
ERICO. The system must comply to
the latest revision of the nVent ERICO
System Installation, Operation and
Maintenance Manual.
2. Combination of nVent ERICO Ericore
Cable with conventional conductor or
structural steel as a downconductor.
nVent ERICO recommends using Ericore
cable in majority of the installations, but
there are exceptions. nVent ERICO has
designed hybrid systems in instances
where concealed downconductor is
already installed. For example, a pool
area on top of a roof that has to be
bypassed using nVent Ericore cable to
minimize possibility of cross flashes.
The complete System would be
installed up to the existing grounding
point. At the grounding point there should
be a nonconductive junction box (rated
for outdoor applications), with a ground
bar where the lower termination of the
nVent ERICO ERICORE Cable will be
connected with the grounding point. The
existing grounding system consisting of
conventional conductor, structural steel or
rebar must comply to the latest revisions
of Standards IEC indicating that
the resistance of the existing grounding
system does not exceed .
nVent ERICO does not assume any
responsibility for the grounding system
and attachment of the nVent ERICO
System to the structure. nVent
ERICO manufactures components to
assemble this type of system.
with utility poles and other shorter free
standing masts. For these applications,
single conductor may be used
• nVent ERICO offers a custom design of
heavy steel, freestanding masts made to
order, namely standard duty and heavy
duty. There are two different heights
available. Each mast has a distinctly
different base.
• Both masts are designed from the
steel drawn over mandrel (DOM) tube,
using low yield stress of material at
ksi. This meets ASTM A type
specification.
• The standard duty mast was designed
for km/hour ( miles/hour) wind.
The seismic design is for % gravity.
This design should satisfy wind condition
in most global locations.
• The heavy duty mast is designed for
km/hour ( miles/hour) wind. The
seismic design is for % gravity.
• Refer to standard installation sheets for
exact mast configurations and installation
details available on www.erico.com. Wind
loading information is available upon
request for only mast configurations
described in the standard installation
sheets. Contact your nVent ERICO
representative for mast availability in
your region.
Hybrid System Applications
There are two types of hybrid systems:
1. Combination of conventional and System
. For applications that require both a
common design method and a collection
volume method (CVM) for the placement
of air terminals. These hybrid systems
are typically not recommended by nVent
ERICO, but they can be used in special
cases, for example, in substations. This
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