The project: C1 package of the UK High Speed 2 line (HS2). C1 consists of 21.6km of high speed rail infrastructure in a rural environment. This will include a 3.37km viaduct, 16.04km twin-bored tunnel and five vent shafts handling both intervention and tunnel ventilation facilities.
Scope of Supply: Zitrón’s scope of works for the project comprises the design, delivery, installation, and commissioning of the Temporary ventilation fans and the electrical power and control cabinets.
Several newness compared to traditional Temporary ventilation are as follow:
- The fans include several control measures in terms of motor temperature sensors and vibration sensors for the control of the performance and wellness of the equipment.
- The fans include measurement of flow and pressure installed in the fan itself.
- The newest accessory is the Ventilation on Demand system. A system specifically designed for measuring the airflow delivered at the tunnel front of work (TBM located) and implementing in the Control cabinet the desired minimum speed, the fan station auto regulates to provide always the required airflow
The installation and commissioning of the entire ventilation system to reduce as much as possible the Construction operation was one of the project keys to complete it successfully.
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