Project Description

Safety Isolation System, A1

ETDE installed 362 lighting columns along the A1 between the Black Cat roundabout and Sandy, a total of 8km.

Within the scheme, there were 313 passive lighting columns, 13 new feeder pillars and approximately 80,000 meters of cable.

There is a high water table within the area, so ETDE proposed the NAL SIS Pillar above ground passively safe disconnection system in lieu of the originally designed and more traditional underground disconnection system.

The system works with each passive column having an impact sensor. Upon impact, the sensor provides an open circuit to a monitor board within the feeder pillar and the circuit disconnects thus isolating power to the damaged column making it electrically safe.

Project: A1 Blackcat to Sandy Lighting Columns

Client: ETDE