1 Scope
EN 50216‑4 specifies basic accessories of transformers / reactors, such as
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— Thermometer pockets, to be used for liquid immersed transformers,
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— Earth terminals; to be used for liquid immersed and dry-type transformers,
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— Draining plugs, to be used for liquid immersed distribution transformers,
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— Filling openings, to be used for liquid immersed distribution transformers,
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— Rollers, choice and distance to be used for liquid immersed and dry-type transformers.
After agreement between purchaser and manufacturer, this part of EN 50216 Series may still be applicable either as a whole or in part to large power transformers or special transformers.