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10nov2013

Which cable cross section is recommended to the detection loops?

  • By ivo
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You should always use shielded cable of the type appropriate for fire detection installations. Please note that cable types are also regulated by local authorities/ standards.
As a rule of thumb you should use:

a) 0,8 mm2 for loop lengths up to 500 m
b) 1.0 mm2 for loop lengths up to 800 m
c) 1.5 mm2 for loop lengths up to 1200m
d) 2.5 mm2 for loop lengths up to 1500 m

The lengths specified include return to the main panel.

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