UFC 3-535-01
17 November 2005
installation in wet locations and meeting REA Bulletin 345-14 or 345-67. Color code all
conductors.
13-8.5
Current Regulators
Use regulators meeting FAA AC 150/5345-10, Specification for Constant Current
Regulators and Monitors, of a suitable type and style. The size selected should normally
provide for approximately 20 percent expansion of the load.
13-8.6
Engine/Generators
Use engine/generators meeting Specification FAA-E-2204 with Type I automatic power
transfer. Also see AFI 32-1063, Electric Power Systems, and AFMAN 32-1184,
Operation, Maintenance, and Repair of Electric Power Generating Plants and Systems.
13-8.7
Series Cable Selection
Cables must be unshielded, 5000 volt FAA AC 150/5345-7 (Latest Issue) L-824 cable.
Series cables (medium voltage, 5000 volt) must not be installed in cable trays unless
they are rated type C (TC).
13-8.8
Connectors
Use connectors meeting FAA AC 150/5345-26, Specification for L-823 Plug and
Receptacle, Cable Connectors, for L-823 plug and receptacle cable connectors to
interconnect fixtures, isolation transformers, and distribution cables.
13-8.9
Isolation Transformers
Use isolation transformers meeting FAA AC 150/5345-47, Isolation Transformers for
compatible with the regulator and current rating of the lamp.
13-8.10
Mounting Bases and Transformer Housings
Use bases meeting FAA AC 150/5345-42, Specification for Airport Light Bases,
bases, use Type L-867 for non-traffic areas (such as elevated light systems located on
the edges of runways and taxiways) and Type L-868 for load bearing applications
(subject to loading by aircraft, including overruns) containing lights that are embedded in
the pavement. Unless otherwise specified non-metallic bases may be used in non-load
bearing applications. Ensure the base and fixture are compatible.
13-8.11
Frangible Supports
If frangible mounting is required and the device is not provided with an integral fracture
mechanism, mount the device on electric metallic tubing (EMT) or intermediate metallic
conduit attached to the mounting base by a frangible coupling meeting FAA Drawing C-
6046A, Frangible Coupling Type I and Type IA, Details.
13-8.12
Fixtures, Filters, and Lamps
Use fixtures and lamps as specified for each system. If more than one fixture is
connected to an isolation transformer, the fixture must have a shorting device or bypass
relay to avoid multiple light outage if a lamp fails. Filter colors must meet the latest FAA
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