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A current of at least 10 A, derived from a source with a no-load voltage not exceeding 12 V,) z# ^% G4 w4 k' _6 i) A7 z
shall be passed between the earthing terminal or earthing contact and each of the accessible
5 z0 z- s B' [metal parts in turn.
! r: G6 F1 F: k! pThe voltage drop between the earthing terminal or earthing contact and the accessible metal- d& C$ v! i$ G4 w: D
part shall be measured and the resistance calculated from the current and the voltage drop. In$ u" a k; z& u2 r
no case shall the resistance exceed 0,5 Ω. When type testing, the current shall be applied for a
" G: ?# c! J, q q7 l' Tperiod of at least 1 min." s" C- h. v6 i+ Z2 ?4 b0 L
NOTE In the case of a luminaire with a non-detachable flexible cable for the supply connection, the earthing
, x5 d( J6 I2 z: ?contact is at the plug or supply end of the flexible cable or cord. |
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