ELECTRICAL EQUIPMENT FOR ADVERSE ENVIRONMENTAL CONDITIONS
All the electrics for the crane are installed in a ‘box’ for extremely adverse environmental conditionssuch as dust, radiation and ambient temperature, or all three together. The box is practically airtight from the environment, but of course can be accessed for maintenance.
Air-conditioning is also provided by a robust external air-conditioning unit made by Weisshaar or similar such as a split air-conditioning unit. The coolant is fed via two pipes into the box where the actual air-conditioning unit is. The compressor is outdoors. Of course, using positive pressure is possible and useful for making it difficult for dirt and dust to enter.