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Site Selection and Preparation
Mounting
Fixed Foundation
Use mounting holes in the base frame to fasten the unit
to the foundation. Always use hardware of a suitable
grade, size and style.
Connections
All electrical connections must have flexible sections to
isolate vibration if they connect to the unit base rails.
Properly support and secure all piping before installing
the flexible connection.
Combustible Floor and Roof Protection
Engines, and their weatherproof housings, if provided,
that are installed on roofs of structures shall be located at
least 5 feet (1.5 m) from openings in walls and at least 5
feet (1.5 m) from structures having combustible walls.
Per NEC 110.26(E)(2), a minimum separation of 3 ft (0.91
m) is permitted if the adjacent wall of the structure has a
fire resistance rating of at least 1 hour.
An oil containment system consisting of a curb or dike
having a capacity at least equal to the total capacity of
the lubricating oil system or the liquid fuel system,
whichever is greater, shall be provided. This system shall
also comply with applicable requirements of NFPA 37,
Chapter 6.
The surface beneath the engine and beyond the engine
and the oil containment dike shall be noncombustible to a
minimum distance of 12 in. (300 mm).
NOTE: Local building codes may have additional
requirements for the placement of fuel storage tanks on
top of a roof or structure. Consult the local building code
department or fire marshal for code compliance before
placing the generator on top of the roof or structure.
Installation Guidelines for Protector Diesel Generators
15
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