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The resistor value to be used shall be derived from the value of the nominal running current of- f. V9 ?1 f: J" I* K9 ^+ M5 P
the lamp prescribed in the relevant lamp data sheet of IEC 60081 and IEC 60901 and
1 v& `" ?( u, p9 S/ {substituted in the following equation:8 `2 C4 r0 ^9 o- b0 v
- ^5 z9 |( J: w. F. H9 M8 `
( |% k4 A u2 i4 j0 V5 GR=11,0/(2,1× In)Ω, M- h W" q. C* V( P
+ U& t# t. l6 Z3 ]( C' gwhere "ln" is the nominal running current of the lamp.
. L7 F3 s9 ]' N
4 h$ E: |/ z2 M% b& K6 [ {0 qFor lamps not covered by IEC 60081 and IEC 60901, the values declared by the lamp4 N( w) o' l! b$ s; Z% x6 o9 h m
manufacturer shall be used. |
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