3.4 Sign Mounting and Installation
WARNING
Signs must be grounded to a true earth ground. Failure to observe this warning may result in personal injury, death, or
equipment damage.
3.4.1 General Guidelines
When installing signs, follow the guidelines below
•
See FAA AC 150/5340-30, Fig 126 for mounting pad design. Also see the following subsections for detailed
information on sign pad and leveling of the sign.
FAILURE TO INSTALL AND LEVEL THE SIGN AS DESCRIBED IN THE VARIOUS SUBSECTIONS BELOW WILL VOID THE
WARRANTY
•
Mount the signs on a concrete slab or concrete pedestals
•
Do not allow concrete edges to protrude above grade.
•
Provide power to the signs through breakaway cable connectors installed within the frangible coupling portion of the
sign’s mounting legs.
•
Install auxiliary equipment, such as isolation transformers, in a light base embedded in the ground.
3.4.2 Overall Mounting Height
Install signs so that the overall height above the surrounding ground of the sign assembly, including mounting supports, does
not exceed heights given in
and the clearances of aircraft wings as specified in AC 150/5340-18. The sign must
provide 12 inches (304.8 mm) of clearance between the top of the sign and any part of the most critical aircraft using, or
expected to use, the airport when the aircraft’s wheels are at the pavement edge. For overall mounting height, refer to AC
150/5345-44.
3.4.3 Sign Orientation
When orienting signs follow the guidelines below
•
Orient the sign so that the face is perpendicular to the centerline of the taxiway or runway.
L-858 AGSF
Installation
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ADB Safegate, All Rights Reserved
Содержание L-858 AGSF Series
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