mark or stamp with the identification as directed. Two-color laminated
plastic is acceptable. Provide dark colored plastic tags with markings of
light color to provide contrast so that identification can be easily read.
Provide fastening material of a type that will not deteriorate when exposed
to water with a high saline content and petroleum products.
2.4.6
Concrete Markers for Direct Buried Cable Systems
Provide as specified in Section 16302N UNDERGROUND TRANSMISSION AND
DISTRIBUTION.
2.5
GROUND RODS
UL 467. Copper-clad steel with diameter adequate to permit driving to full
length of the rod, but not less than 19 mm 3/4 inch in diameter and 3050 mm
10 feet long, unless indicated otherwise.
2.6
ROTATING LIGHT BEACON
[MIL-L-7158 with double peak white beam][ or ][Type L-802 [A] [S] of FAA AC
150/5345-12]. Provide duplex type beacon with alternating green and white
beams. White beam shall have a double peak required by MIL-L-7158.
[Beacon shall have a low temperature heater package for use in temperatures
below minus 30 degrees C.]
2.6.1
Provide weatherproof circuit-breaker panelboard having four single-pole
120-volt circuits, a ground bus and a solid neutral bus to provide
separately protected circuits for the beacon lamps, motor, [heater circuit]
and obstruction lights. Provide cabinet with a NEMA Type [3R][_____]
enclosure of zinc-coated steel.
2.7
HELIPORT LIGHT BEACON
FAA AC 150/5345-12, Type L-801H, with flashing lights coded
white-green-yellow.
2.8
OBSTRUCTION MARKER LIGHTS
FAA AC 150/5345-43, Type L-810, or MIL-L-7830. Obstruction marker lights
shall emit a steady burning aviation red light. [Provide light assembly
supplied by [120][240]-volt multiple circuit.][Provide light assembly
supplied by a series circuit power adapter as recommended by the
obstruction light manufacturer.] Provide [single-][ or ][double-] unit
type obstruction marker lights [as indicated]. Provide control for
obstruction marker lights as indicated.
2.9
HIGH/MEDIUM INTENSITY OBSTRUCTION LIGHTS
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NOTE: Use high intensity or medium intensity
obstruction lighting as authorized.
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FAA AC 150/5345-43.
SECTION 16522N
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