The TPSK-ZV system provides complete electrical disconnection from the power supply upon impact of a column, post or sign, even if the supply cable is tethered. Electrical disconnection is achieved in the underground chamber within the time constraints as specified in BS EN 12767.
Upon a vehicular collision the ZV circuit will activate the Cut-out system housed within the enclosure and disconnect all power to the affected column, post or sign within the 0.4s time constraints as specified within BS EN 12767.
|Feature: Zero Voltage Switch||Benefit: Activated by collisions but not vibration.|
|Feature: Compact detector - Pre-fitted in Tofco DPI Isolator enclosure.||Benefit: Reduced on-site installation time.|
|Feature: Epoxy encapsulated tilt switch.||Benefit: Robust, not affected by moisture.|
|Feature: Non-mercury based detection technology.||Benefit: Environmentally "friendly". RoHS Compliant.|
|Feature: Disconnects power to the Lamp Column on vehicular collision.||Benefit: Column is electrically safe after impact. No risk to emergency services. Disconnects within the 0.4s time scale as stated within BS EN 12767.|
|Feature: Disconnects power to the column when cable to column breaks.||Benefit: No risk to emergency services from live end of connector. Disconnects Live and Neutral if live cable accidentally severed by Groundworks contractors. Disconnects Live and Neutral to column even if detector is destroyed in impact.|
|Feature: No low voltage detection lines required.||Benefit: Simple to install. No low voltage power supply required.|
|Feature: Uses only 4 wires to column – supplied as part of kit.||Benefit: Lower cost. Easy to install in pre-wired kit format.|
|Feature: Automatic restart after power interruption.||Benefit: No need for Manual Reset.|
|Feature: Can be Manually Disarmed and Armed Locally without interrupting entire circuit.||Benefit: Can be maintained independently.|
|Feature: LED indication.||Benefit: Installation and fault detecting easy. Warns installer/resetter that system is live.|
|Feature: Filter circuit.||Benefit: Removes risk of spurious triggering from electronic ballasts, traffic vibration or vandal attack (e.g. kicking the lamp column).|
Please ensure minimum cable bend radius is achieved when selecting size of chamber.