• A system ground must be provided for earth detection and lightning protection devices. This connection must comply with approved earth
detection per NFPA780.
• Only system wiring can be run together in the same conduit.
• Any wiring leaving the building requires overload protectors (2081-9044). Use one overvoltage protector where wiring leaves the building and
another where the wiring enters the other building.
• Circuits must not leave the building unless the following conditions are met:
- For underground wiring: Circuits must run in a separate parallel wiring trough from any commercial power distribution wiring.
- For overhead wiring: Circuits must be protected from lightning by the 2081-2097/ 2081-2098 Isolated Loop Circuit Protectors. The
outside plant wiring must be limited to one contiguous property, and the total wire length must not exceed 1 km (3.270 ft). Circuit wiring
must be run on separate poles from those supporting any commercial power distribution wiring. Circuit wiring must be run in parallel with
the relation to the commercial power distribution wiring, and must be separated by a minimum of 100 ft or the maximum span between
any two adjacent poles of either the system's circuit or the power distribution circuit.
page 16 579-205 Rev. H
4010ES and 4100 4120-Series Class A/Class B Zone Modules Installation Instructions
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