SIS Quad is an electrical isolation system specifically for traffic signal installations. It provides four channels of monitoring allowing isolation to four separate structures. Each signal pole is fitted with a small sensor that, in the event of impact, communicates with the monitor board triggering complete LV and ELV isolation within 0.2 seconds. Mounted on a standard 3U rack within a traffic signal control cabinet, the monitor board is fully compliant with EN12767:2007 (Electrical Isolation of Passively Safe Structures) and can be used with any type of passively safe column.
Fully compliant with EN12767:2007
Suitable for use with NE, LE and HE Passively safe columns
Guaranteed electrical isolation of all volts within 0.2 seconds of impact
Guaranteed isolation even if the structure has not detached from its base
Provides isolation of individual traffic signal columns
Simple to test at commissioning stage
Enables safe isolation of individual columns for maintenance works
Provides fault outputs for impact, voltage drop and maintenance issues
Provides fault outputs to RMS systems
Successfully tested at MIRA
SIS Quad
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