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If the result of the TOUCH CURRENT measurement on any of the above equipments exceeds
/ a" u1 z; M ?+ |* q9 o, [3,5 mA r.m.s., the following requirements a) and b) apply, and also, if relevant, those in
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a) The r.m.s. PROTECTIVE CONDUCTOR CURRENT shall not exceed 5 % of the input current per
9 f1 S0 c# S& T" ~; ~# _line under normal operating conditions. If the load is unbalanced, the largest of the three5 P1 q8 u& e% w0 i; ?. }
line currents shall be used for this calculation.To measure the PROTECTIVE CONDUCTOR CURRENT, the procedure for measuring TOUCH CURRENT is used but the measuring instrument is replaced by an ammeter of negligible
* z, `) E( ^6 _- C" B5 a3 P' _) c( dimpedance; and % T; N- G+ i Y
b) one of the following labels, or a label with similar wording, shall be affixed adjacent to the+ f" Y/ \4 [6 R4 U. P8 ?# V) C# C
equipment AC MAINS SUPPLY connection:
1 A# X+ Z, T1 W3 [/ NWARNING HIGH LEAKAGE CURRENT EARTH CONNECTION ESSENTIAL BEFORE CONNECTING SUPPLY WARNING
7 T* m2 \/ o/ {; B' f( H. FHIGH TOUCH CURRENT EARTH CONNECTION ESSENTIAL BEFORE CONNECTING SUPPLY5 Q; I) P8 Y3 B8 ?
Compliance is checked by inspection and measurement. |
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