DIN EN 50085-2-2 VDE 0604-2-2:2009-07

Cable trunking systems and cable ducting systems for electrical installations

Part 2-2: Particular requirements for cable trunking systems and cable ducting systems intended for mounting underfloor, flushfloor or onfloor;

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DIN VDE 0634-2 VDE 0634-2:1987-12

Underfloor electrical installation

Ducting and trunking and their accessories for underfloor electrical installations

DIN VDE 0634-1 VDE 0634-1:1987-09

Underfloor electrical installation

Service units