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A current of at least 10 A, derived from a source with a no-load voltage not exceeding 12 V,4 h7 O2 b' r0 b4 K# F! |4 \8 C
shall be passed between the earthing terminal or earthing contact and each of the accessible9 J* L5 Q: v& n$ g! Z$ m
metal parts in turn.! n. X1 g+ w& Q2 g- u
The voltage drop between the earthing terminal or earthing contact and the accessible metal! G- t9 \' }* c3 v, k: [( j! Z
part shall be measured and the resistance calculated from the current and the voltage drop. In# ~2 r3 _, f p9 m& O
no case shall the resistance exceed 0,5 Ω. When type testing, the current shall be applied for a& x `/ P" A3 ~: w% f- J
period of at least 1 min.
- I8 d" v% J* ~1 O* G! ~% B$ N5 `4 W9 XNOTE In the case of a luminaire with a non-detachable flexible cable for the supply connection, the earthing
k7 R5 \6 l9 S% Kcontact is at the plug or supply end of the flexible cable or cord. |
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