Low-Intensity Neon Lights BA20 and BA30

Family : Obstacle warning lights
Category : Low intensity beacons

Application

The International Civil Aviation Organization (ICAO) has defined the specification for installation of
Obstacle Warning Lights in the Annex 14 to the convention on international civil aviation, Volume 1
«Aerodrome design and operations» (July 1999).
The following structures are considered as obstacles to civil aviation:

• Factory chimneys

• Towers (Telecom, TV, …)

• High Voltage overhead cables

• Bridges

• High rise buildings

• Electrical power generation stations

• Cranes

The BA20 and BA30 Neon obstacle warning lights are conforming the ICAO requirement thanks
to their luminous intensity of more than 20 cd for the BA20 model (Type A low-intensity
obstacle warning light) and more than 35 cd for the BA30 model (Type B low-intensity obstacle
warning light). The use of neon tube offers benefits in terms of life time (25 000 h) and lower
electrical consumption (15-25W) compared to incandescent bulbs lights.

Installation

The low-intensity lights are installed on structures not exceeding 150 m high. Above 45 m, several levels
of beaconing are required. The interval between two beacon levels must not exceed 45 m as well.
For factory chimneys, the obstacle warning lights must be installed from 1.5 m to 3 m maximum from
the top of the structure. Three lights should be fixed regularly at 120° along the chimney circumference.
The BA20 and BA30 Neon obstacle warning lights are available either as a single unit or complete
with a stainless steel mounting brackets as well as a connection box for power supply.
A photocell is also available upon request (option).
Depending on the obstacle location (above a take off climb surface for example), the ICAO
requires uninterruptible beaconing in every circumstances ie. BBS system (master and slave) operating system.

Power supply and service continuity
The BA20 and BA30 obstacle warning lights are delivered with 3 m cable for power supply. The input voltage
could be 24V, 48V, 110V, or 230V-50Hz upon requirement of the customers.
The BA20 and BA30 lights are also available with a beacon failure alarm driving box (option).
A UPS cabinet with 12 h autonomy (0/ 20%) is available as well according to ICAO requirement for
uninterruptible beaconing in every circumstances.

 

Description	Ref.	Dimensions (m)	Weight (kg)
BA30 220V	P89790		2
BA20 48V	P89737		2
BA20 230V	P89714		2
BA20 24V	P89736		2