Continued...
Similarly exhaust sleeves and sensors
are fitted at the ends of the cables to allow the air to leave the system.
The dehumidified air is supplied to the cables from one of the
three Dehumidification Plant Rooms. The plant rooms are mounted on the steelwork
structure of the bridge on steelwork supports designed by Bennett Associates.The
plant rooms contain specialist equipment to take moist air from the atmosphere
and dry it out before pumping it through a system of pipework spanning
throughout the bridge. Bennett Associates designed the extensive pipe and
electric cable support system throughout the bridge.
The condition of the air is continually monitored as it enters
the plantroom, then again as it leaves the plantroom. In addition, it is
monitored at the cable injection points, at intermediate locations along the
cable, and as it leaves the cable at the exhaust points. All the data is fed
back to the plantrooms and then fed back by fibre optic link to a PC in the
bridge control building.
Customised SCADA software has been produced by Bennett Associates
to monitor and log the data collected throughout the dehumidification system.
The system allows for an authorised person to access, monitor and control all of
the system parameters from any internet connection worldwide.
For more information, contact us on
01709-373782
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