FAA Lightning Protection Study: Lightning Protection Requirements for AN/GRN-27(V) Instrument Landing System.

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Abstract:

The withstand capabilities and protection requirements for solid state circuits of the ANGRN-27 V Instrument Landing System susceptible to lightning-induced transients on buried control cables are presented. Susceptible circuits and components were identified from the wiring diagrams as transistors, diodes, relay contacts, and electrolytic capacitors. Withstand capabilities of each circuit were determined analytically using manufacturers data and a 1000-volt, 10 x 1000 microsec test waveform. Avalanche diode surge protectors and series resistance are recommended to protect susceptible circuits from lightning-induced transients on buried control cable conductors connected to the circuits.

Author(s):
Huddleston, Gene K. ; Nordgard, John D. ; Larson, Ronald W.
Author Organization(s):
ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY
Descriptive Note:
Final rept. Nov 72-31 Jan 74,
Supplementary Note:
See also AD-781 319.
Pagination:
0120

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FAA-RD-74-131, GIDEP-E086-2219
Contract/Grant Number(s):
DOT-FA72WAI-356
Task Number(s):
956700
Project Number(s):
AF-9567
Monitor Series:
74-131, E086-2219
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*INSTRUMENT LANDINGS, *LIGHTNING ARRESTERS, TRANSIENTS, SURGES, PROTECTIVE EQUIPMENT, RADIO EQUIPMENT, SEMICONDUCTOR DEVICES
Field(s)/Group(s):
Air Navigation and Guidance
Keyword(s):
Instrument landing systems, AN GRN 27(V)
Report Date:
1974 Apr 01