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Choice of Appliance
Battery chargers are designed to provide the battery's charging and floating current
and, depending on requirements, the operating current. The ENAG models are filtered
and, in the event of battery cut-out or damage, allow direct current to be supplied to the
load centres.
The choice of appliance will depend on applicable standards, battery type (technology
used, number of cells, capacity), amount of current consumed by the load centres and
installation and environment constraints.
Appliances running on HF switch mode have the following advantages:
Less space required
Low weight
Very low noise level
Direct current for working power supply
Low residual ripple.
1.5 Reference standards applied
The standards applied are:
NF EN 60950 + A1 + A2 (October 93):
NF EN 50081-1 (June 92) EMC:
NF EN 50082-1 (June 92) EMC:
NF EN 55022 (December 1994):
Characteristics and operation
2.1 Technical characteristics
2.1.1 Mechanical characteristics
Presentation : metal wall-mounted unit.
IP 23 protection as standard.
Standard paint: salt spray-resistant polyester coating.
Dimensions: see space requirement and mounting plan in appendices.
CDTV DEA
Safety
equipment including electrical office
equipment.
Generic standard for emissions
Generic standard for immunity
Limits and methods for measuring the
characteristics of RF interference
produced by information processing
equipment.
of
information
processing
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