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A.1 In order to determine whether a conductive part is a live part which may cause an electric) Q3 ~7 X7 x! ]6 W5 y+ h7 L/ i$ U
shock, the lamp controlgear is operated at rated voltage and nominal supply frequency, and3 W6 {2 p. E2 P8 s" {( n% M) A
the following tests are conducted.5 X$ k/ @4 \( {+ Q- g& H
A.2 The part concerned is a live part if a current of more than 0,7 mA (peak) or 2 mA d.c. is
$ h3 e+ Z, [5 B- tmeasured.: T) _: S2 p6 @% U: k* \, E, O% p
For frequencies above 1 kHz, the limit of 0,7 mA (peak) is multiplied by the value of the
/ X0 |8 u/ q! \4 w, {* y+ efrequency in kilohertz, but the result shall not exceed 70 mA (peak).
" R$ t6 k% i' e7 I' q) Z: yThe current flowing between the part concerned and earth is measured.1 Y0 c: `, c! H) J% H, t' t; h
Compliance is checked by measurement in accordance with Figure 4 and 7.1 of IEC 60990.
5 F' W- ^& H# } ~/ z. ]1 LA.3 The voltage between the part concerned and any accessible part is measured, the
1 w9 g, P; z' D2 G+ omeasuring circuit having a non-inductive resistance of 50 kΩ. The part concerned is a live3 ]; x& U& Z$ l$ Y8 L5 c+ X8 W
part if a voltage of more than 34 V (peak) is measured.
- ^9 A$ r; O. `" }5 I. pFor the above test, one pole of the test supply shall be at earth potential. |
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