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A current of at least 10 A, derived from a source with a no-load voltage not exceeding 12 V,$ l% _4 I: k8 q2 }
shall be passed between the earthing terminal or earthing contact and each of the accessible
: |* ?$ l& i& l8 M* O H+ V8 b" ~metal parts in turn.
) Z0 K/ f. R8 Q- `# Z) G' t5 o; @The voltage drop between the earthing terminal or earthing contact and the accessible metal
$ ?9 D% @9 p( O0 spart shall be measured and the resistance calculated from the current and the voltage drop. In
# h) W+ H% x& Y- e6 Ino case shall the resistance exceed 0,5 Ω. When type testing, the current shall be applied for a5 A8 N2 z; B+ W
period of at least 1 min.- u* S% c3 y) L* Q$ L
NOTE In the case of a luminaire with a non-detachable flexible cable for the supply connection, the earthing- Y# ^/ r7 m$ w
contact is at the plug or supply end of the flexible cable or cord. |
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