What is BS EN 61823 – AGL series transformer specifications about?  
Suitable ground lighting transformers at aerodromes aid in efficient distribution of power. BS EN 61823 specifies the characteristics of aeronautical ground lighting series transformers (AGLST) used in aeronautical ground lighting for 6,6 A series circuits, at a service voltage of up to 5 kV, supplied by constant current regulators up to 30 kVA in rating.
Note: Specifications for similar series transformers intended for any primary or secondary currents other than 6,6 A, or to supply alternative voltages, constant power, reactive loads, etc., are not included in BS EN 61823.
Who is BS EN 61823 - AGL series transformer specifications for? 
BS EN 61823 on ‘AGL series transformer specifications’ is useful for: 
- Aerodrome management and owners
- Power supply entities
- Manufacturers and suppliers of transformers
- Electrical engineers
- Project managers
- Builders / architects / contractors
- Quality control personnel
- Compliance / audit teams
- Safety bodies
Why should you use BS EN 61823 – AGL series transformer specifications?  
AGL series transformers provide power to airport lighting luminaires or other loads (resistive) from their secondary circuits. The AGL series transformers provide continuity of the series circuit in the event of a loss of the load on the transformer, and electrical isolation between the primary circuit supplied by a constant current regulator, and the secondary circuit connected to the load under conditions defined in BS EN 61823.
An AGL series transformer is able to withstand a permanent short or open-circuit secondary series circuit.
General requirements provided in BS EN 61823 include details about encapsulation, earthing, service conditions, and electrical characteristics. Type tests and routine tests have been provided in BS EN 61823 along with details about test requirements such as leakage current tests and shock tests. Illustrations provided in BS EN 61823 help you with details on leakage current tests, and parts such as plugs and receptacles.
BS EN 61823 helps you to follow best practices when setting up electrical facilities and transformers for ground lighting at your aerodrome facilities.
