VS_2017

Technical Details – Emergency Lighting Modules for TC and T Lamps
Additional information for optimising EMC
Information on the installation of electronic ballasts for optimising EMC
To ensure good radio interference suppression and the greatest possible operating
safety, the following points should be observed when installing electronic ballasts:
• Conductors between the EB and the lamp (HF conductors) must be kept short
(reduction of electromagnetic interference). High-potential lamp conductors must
be kept as short as possible, in particular with tubular lamps.
Lamp conductors of this kind are labelled with an * in the wiring diagram on
the type plate.
• Mains and lamp conductors must be kept separate and if possible should not
be laid in parallel to one another. The distance between HF and mains
conductors should be as large as possible, ideally > 5 cm.
(This prevents the induction of interference between the mains and lamp conductors.)
• The mains conductor within the luminaire must be kept short (to reduce the
induction of interference).
• Devices must be properly earthed. EBs require secure contacts to the luminaire
casing or must be earthed using a PE connection. This PE connection should be
effected using an independent conductor to achieve better dissipation of the
leak current. EMC improves at frequencies greater than 30 MHz.
• The mains conductor must not be laid too close to the EB or the lamp (this is
especially important in the event of through-wiring).
• Mains and lamp conductors must not be crossed. Should this be impossible to avoid,
conductors should be crossed at right angles to one another to avoid inducing
interference between mains and HF conductors.
• Should conductors be wired through metal parts, such conductors must always
be additionally shielded (e.g. with an insulating sleeve or grommet).
Maintenance With regard to system maintenance and control, care must be taken to ensure
compliance with any ordinances and standards governing emergency lighting at the
place of installation. Prior to opening lamp covers, the following procedure must be
observed:
1. Disconnect luminaires from the mains voltage.
2. Remove cover.
3. Disconnect battery from the emergency lighting module (disconnect the plug).
VS recommends connecting control LEDs to be visible on the outside of emergency
luminaires to enable simple and regular control of emergency luminaires and
emergency lighting modules.
Changing batteries
Batteries need to be replaced if the operating period of luminaires falls short of 60 minutes
in the case of 1-hour operation and 180 minutes for 3-hour operation, respectively.
Emergency lighting modules have a status display for this purpose.
Spent batteries must be replaced with the manufacturer's original batteries only. Furthermore,
the polarity of the batteries must be strictly observed. The battery supply lines of
the emergency lighting module are marked as follows:
red = +; black = –
334