(1) - Devices and safety equipment, namely air demoisturizers and dehydrating breathers for oil insulated transformers, chokes and tap changers for control, adjustment, monitoring and checking the functional status and the functional capability of transformers, switching devices and tap changers in transformers.
(2) - Assembly, startup, maintenance and repair of the aforementioned devices and safety equipment.
(3) - Devices and safety equipment, namely air demoisturizers and dehydrating breathers for oil insulated transformers, chokes and tap changers for control, adjustment, monitoring and checking the functional status and the functional capability of transformers, switching devices and tap changers in transformers.
(4) - Assembly, startup, maintenance and repair of the aforementioned devices and safety equipment.
(5) - Devices and safety equipment, namely air demoisturizers and dehydrating breathers for oil insulated transformers, chokes and tap changers for control, adjustment, monitoring and checking the functional status and the functional capability of transformers, switching devices and tap changers in transformers.
(6) - Startup, maintenance and repair of the aforementioned devices and safety equipment.
(7) - Assembly of the aforementioned devices and safety equipment.
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