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A current of at least 10 A, derived from a source with a no-load voltage not exceeding 12 V,/ N5 O' L( }9 h3 V3 l
shall be passed between the earthing terminal or earthing contact and each of the accessible
& ]. R1 k5 z& [* z! ]- t8 Jmetal parts in turn.$ B: _+ k- g! a9 M- d
The voltage drop between the earthing terminal or earthing contact and the accessible metal
4 P# t* \) [) c! ]% Upart shall be measured and the resistance calculated from the current and the voltage drop. In3 R I- B9 q5 u% T! W. m3 y# V
no case shall the resistance exceed 0,5 Ω. When type testing, the current shall be applied for a: M0 @% t# W& }
period of at least 1 min.
: D5 }+ J4 ]: B5 f* ` YNOTE In the case of a luminaire with a non-detachable flexible cable for the supply connection, the earthing' k$ y# v4 \: h( v2 x4 c1 I
contact is at the plug or supply end of the flexible cable or cord. |
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