The A-0 (FAA) and I-1 (ICAO) obstruction designation apply to obstacles between 0 and 150 feet (46 meters) above ground level (AGL) which are also appropriately painted in accordance with regulations. The compliant painting scheme provides daytime obstacle marking with night time marking provided by a single (1) dual low intensity obstruction light at the top of the obstacle.
In order to comply with regulation, A-0 and I-1 obstructions are required to be inspected every 36-hour period to ensure functionality. This regulatory requirement can be fulfilled via an appropriate control and monitoring system providing notification of critical system fault or light fixture outage.
The A-1 (FAA) and I-2 (ICAO) obstruction designation apply to obstacles between 150 and 350 feet (46 and 107 meters) above ground level (AGL) which are appropriately painted in accordance with regulations. The compliant painting scheme provides daytime obstacle marking and night time marking is provided by dispersed light fixtures in accordance with the specific tower configuration.
For A-1 (FAA) structures, night time marking is provided by two or more L-810 (F) single fixture, low intensity obstruction lights at intermediate level and one L-864, medium intensity obstruction light at the top of the obstruction. All fixtures on the obstruction are required to be flash synchronised with a common flash rate.
For I-2 (ICAO) structures, two or more low intensity type A or B single fixture obstruction lights are used to provide steady-burning lighting at the intermediate level, with a medium intensity type B or C obstruction light at the top level.
In order to comply with regulation, A-1 and I-1 obstruction lighting systems are required to be inspected every 36-hour period to ensure functionality. This regulatory requirement can be fulfilled via an appropriate control and monitoring system which provides notification of critical system fault or light fixture outage.
The E-1 (FAA) and I-3 (ICAO) obstruction designation apply to unpainted obstacles between 200 and 350 feet (61 and 107 meters) above ground level (AGL). Both day and night obstacle marking are provided by dispersed light fixtures consisting of a combined (white and red) medium intensity obstruction light at the top level and low intensity obstruction lights at the intermediate level.
For E-1 (FAA) defined structures, daytime marking is provided by a L-864/865 combined medium intensity light fixture at the top of the obstacle operating in L-865 (white) mode. At night, the L-864/865 combined medium intensity light fixture operates in L-864 (red) mode with lighting at the intermediate level being provided by two or more synchronised L-810 (F) single fixture, low intensity obstruction lights.
For I-3 defined structures, daytime marking is provided by a type A and B or type A and C combined medium intensity light fixture at the top of the obstacle operating in type A (white) mode. At night, the combined medium intensity light fixture operates in type B or C (red) mode with intermediate level lighting being provided by two or low intensity type A or B single fixture, low intensity obstruction lights.
In order to comply with regulation, E-1 and I-3 obstruction lighting systems are required to be inspected every 36-hour period to ensure functionality. This regulatory requirement can be fulfilled via an appropriate control and monitoring system which provides notification of critical system fault or light fixture outage.
The Catenary obstruction designation applies to obstacles consisting of catenary wires and catenary support structures (i.e. towers). Catenary is defined as suspended wires (or lines) that are kept at a defined mechanical tension by supporting structures. Day time obstacle marking can be provided via either a compliant painting scheme or dispersed light fixtures. Night time obstacle marking is provided by dispersed light fixtures. A catenary obstacle has three light positions namely top, middle and bottom of the structure with all middle lights in alignment.
When day time lighting is used it is provided by L-866/885 combined medium intensity light fixtures at each position of the obstacle operating in L-866 (white) mode. At night, the L-866/885 combined medium intensity fixtures operate in L-885 (red) mode. A catenary lighting system is required to generate a prescriptive flash sequence of middle light, top light then bottom light.
In order to comply with regulations, catenary obstruction lighting systems are required to be inspected every 36-hour period to ensure functionality. This regulatory requirement can be fulfilled via an appropriate control and monitoring system which provides notification of critical system fault or light fixture outage.
Modular solutions apply to FAA and ICAO designated obstructions that do not conform to any of the predefined structure types but still require night and/or day marking. This type of obstruction requires the use of standardised controllers and light fixtures to provide a flexible and scalable solution that is catered to the specific configuration and physical profile of the obstruction. This approach results in reduced costs, design time and manufacture time for the obstruction solution.
Solar self-contained obstruction lights apply obstructions where a low intensity light is applicable, but the application is temporary and/or no suitable power source is practically available. Each self-contained solar powered light fixture comes with an integrated solar-battery system, where the solar module provides autonomous operation and also charges the internal batteries during daylight hours. In turn, the batteries allow operation in poor solar environments without the need for costly cabling or generators. Solar obstruction lights are FAA and ICAO compliant.