In recent years, the installation of Visual Alarm Devices (VADs) has experienced considerable growth. This is also due to the proven effectiveness and reliability of VADs in the event of fire, both as a standalone unit and when integrated with an acoustic alarm. The European Committee CEN has released a new standard, EN54-23, which directly concerns the use of visual alarm devices in fire detection systems in non-residential environments.
The purpose of the EN54-23 standard is to standardize the requirements, test methods and performance criteria of VADs:
– Required illumination of 0.4 lux on a surface perpendicular to the direction of the light emitted by the VAD
– The coverage volume must be indicated on the product or in the supporting documentation
– The flash frequency must be between 0.5 Hz and 2 Hz
In all products compliant with the new EN54-23 Visual Alarm Devices standard, you will find a coverage volume code that identifies three of the fundamental requirements. If the product does not specify this code, it is probably not compliant with EN54-23.
VADs are now classified into three categories according to their installation type:
– Ceiling (type C Ceiling)
– Wall (type W Wall)
– Open Class
For Wall (W) and Ceiling (C) devices, the manufacturer defines a maximum installation height and a coverage volume, rectangular in shape for wall devices and cylindrical for ceiling devices. Open-class devices, instead, allow the manufacturer to specify the coverage area with a desired shape. In any case, the minimum required illumination of 0.4 lux on all surfaces must be guaranteed. The standard applies to all visual alarm signaling devices (VAD). In practice, the products involved will be: flashers, optical signs (signaling panels), indoor and outdoor sirens with flasher. The directive applies only to products intended to signal a fire alarm.
Visual Alarm Devices EN54-23
In recent years, the installation of Visual Alarm Devices (VADs) has experienced considerable growth. This is also due to the proven effectiveness and reliability of VADs in the event of fire, both as a standalone unit and when integrated with an acoustic alarm. The European Committee CEN has released a new standard, EN54-23, which directly concerns the use of visual alarm devices in fire detection systems in non-residential environments. The purpose of the EN54-23 standard is to standardize the requirements, test methods and performance criteria of VADs:
– Required illumination of 0.4 lux on a surface perpendicular to the direction of the light emitted by the VAD
– The coverage volume must be indicated on the product or in the supporting documentation
– The flash frequency must be between 0.5 Hz and 2 Hz
In all products compliant with the new EN54-23 Visual Alarm Devices standard, you will find a coverage volume code that identifies three of the fundamental requirements. If the product does not specify this code, it is probably not compliant with EN54-23.
VADs are now classified into three categories according to their installation type:
– Ceiling (type C Ceiling)
– Wall (type W Wall)
– Open Class
For Wall (W) and Ceiling (C) devices, the manufacturer defines a maximum installation height and a coverage volume, rectangular in shape for wall devices and cylindrical for ceiling devices. Open-class devices, instead, allow the manufacturer to specify the coverage area with a desired shape. In any case, the minimum required illumination of 0.4 lux on all surfaces must be guaranteed. The standard applies to all visual alarm signaling devices (VAD). In practice, the products involved will be: flashers, optical signs (signaling panels), indoor and outdoor sirens with flasher. The directive applies only to products intended to signal a fire alarm.
Visual Alarm Devices EN54-23
In recent years, the installation of Visual Alarm Devices (VADs) has experienced considerable growth. This is also due to the proven effectiveness and reliability of VADs in the event of fire, both as a standalone unit and when integrated with an acoustic alarm. The European Committee CEN has released a new standard, EN54-23, which directly concerns the use of visual alarm devices in fire detection systems in non-residential environments. The purpose of the EN54-23 standard is to standardize the requirements, test methods and performance criteria of VADs:
– Required illumination of 0.4 lux on a surface perpendicular to the direction of the light emitted by the VAD
– The coverage volume must be indicated on the product or in the supporting documentation
– The flash frequency must be between 0.5 Hz and 2 Hz
In all products compliant with the new EN54-23 Visual Alarm Devices standard, you will find a coverage volume code that identifies three of the fundamental requirements. If the product does not specify this code, it is probably not compliant with EN54-23.
VADs are now classified into three categories according to their installation type:
– Ceiling (type C Ceiling)
– Wall (type W Wall)
– Open Class
For Wall (W) and Ceiling (C) devices, the manufacturer defines a maximum installation height and a coverage volume, rectangular in shape for wall devices and cylindrical for ceiling devices. Open-class devices, instead, allow the manufacturer to specify the coverage area with a desired shape. In any case, the minimum required illumination of 0.4 lux on all surfaces must be guaranteed. The standard applies to all visual alarm signaling devices (VAD). In practice, the products involved will be: flashers, optical signs (signaling panels), indoor and outdoor sirens with flasher. The directive applies only to products intended to signal a fire alarm.
Visual Alarm Devices EN54-23
In recent years, the installation of Visual Alarm Devices (VADs) has experienced considerable growth. This is also due to the proven effectiveness and reliability of VADs in the event of fire, both as a standalone unit and when integrated with an acoustic alarm. The European Committee CEN has released a new standard, EN54-23, which directly concerns the use of visual alarm devices in fire detection systems in non-residential environments. The purpose of the EN54-23 standard is to standardize the requirements, test methods and performance criteria of VADs:
– Required illumination of 0.4 lux on a surface perpendicular to the direction of the light emitted by the VAD
– The coverage volume must be indicated on the product or in the supporting documentation
– The flash frequency must be between 0.5 Hz and 2 Hz
In all products compliant with the new EN54-23 Visual Alarm Devices standard, you will find a coverage volume code that identifies three of the fundamental requirements. If the product does not specify this code, it is probably not compliant with EN54-23.
VADs are now classified into three categories according to their installation type:
– Ceiling (type C Ceiling)
– Wall (type W Wall)
– Open Class
For Wall (W) and Ceiling (C) devices, the manufacturer defines a maximum installation height and a coverage volume, rectangular in shape for wall devices and cylindrical for ceiling devices. Open-class devices, instead, allow the manufacturer to specify the coverage area with a desired shape. In any case, the minimum required illumination of 0.4 lux on all surfaces must be guaranteed. The standard applies to all visual alarm signaling devices (VAD). In practice, the products involved will be: flashers, optical signs (signaling panels), indoor and outdoor sirens with flasher. The directive applies only to products intended to signal a fire alarm.