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DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN EN 50289-1-1 ; VDE 0819-289-1-1:2018-02 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| ITU-T O.9 | 1999-03 | Measuring arrangements to assess the degree of unbalance about earth More |
