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Periphery components for ESSER FACP
11
Maximum cable length and load factor
To assist with planning and project planning – appropriate to the removal of the FACP – the max. number of
loop participants must be determined depending on the load factor and the line length and cross-section. The
individual load factor (LF) of each device should also be included (see Specifications).
The max. permissible total load factor of a loop is 96 and must be calculated before installation / commissioning
of the loop as the devices are supplied with power (including in the event of an alarm or when activated) via the
loop.
There are various planning and project planning tools such as compatibility lists, load factor and
emergency power calculations, order forms etc. available in the protected download area at
www.esser-systems.com.
Take note of max. possible loop length.
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Check bus device compatibility.
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max. permissible total load factor per loop = 96.
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Take note of max. permissible quantity of every device type.
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Max. 127 bus devices per loop.
Determine and add on the individual load factors of the devices. The max. permitted loop
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lengths may differ considerably from the values in the table.
The required emergency power bridging time and the corresponding battery capacity of the
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FACP must also be determined. Additional energy supply modules incl. emergency power
supply may be required!
Note the max. ambient temperature of the FACP!
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76
TI 798960.GB0 / 04.20
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