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FPSL A for HID |
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System design |
The stadium is fed by a primary source. Ideally, a fully independent secondary source should be available, e.g. in a ‘open half-ring’ grid design. In addition to the primary source for the floodlights in the ‘normal’ operation mode, a backup system must be available to power 100% of the floodlights, e.g. by a UPS battery or a rotating-wheel system. |
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System functionality |
In the normal operation mode, the primary source must be able to provide power for the full illuminance level required. If the primary source fails, a backup system must be able to take over the full floodlights without interruption; no disruption to the match illuminance conditions is permitted. Switching back from the backup mode to the ‘normal’ operation must be manually controlled from the moment the primary power supply is recovered. |