Delete existing text and replace with the following:
Output circuits of SELV controlgear with accessible outputs shall not exceed 25 V r.m.s. or 60 V d.c. ripple-free d.c. under load except as indicated below.
If the voltage exceeds 25 V r.m.s. or 60 V ripple-free d.c., the output shall comply with the following:
a) the touch current shall not exceed:
– for a.c.: 0,7 mA (peak);
– for d.c.: 2,0 mA;
b) the no-load output shall not exceed 33 2 V peak or 60 V ripple free d.c.
NOTE The limits given are based on IEC 60364-4-41.
For controlgears with more than one supply voltage, the requirements are applicable for each of the rated supply voltages.
Controlgear with an output greater than the limits above shall have insulated terminals.
Compliance is checked by measuring the output voltage when steady conditions are established, the controlgear being connected to rated supply voltage and rated frequency. For the test under load, controlgear is loaded with a resistance which would give rated output (current or wattage respectively) at rated output voltage.
The touch current is checked by measurement in accordance with Annex G of IEC 60598-1.
Accessible conductive parts separated by double or reinforced insulation, e.g. live parts and the body or primary and secondary circuits, may be bridged (conductive bridged) by resistors or Y2 capacitors provided they consist of at least two separate components of the same rated value (resistance or capacitance) and are rated for the total working voltage and whose impedance is unlikely to change significantly during the individual lifetime of the controlgear.
In addition, accessible conductive parts separated by double or reinforced insulation from live parts, as above, may be bridged by a single Y1capacitor.
Y1 or Y2 capacitors shall comply with relevant requirements of IEC 60384-14 and if resistors are used they shall comply with the requirements of test a) in 14.1 of IEC 60065:2001.
NOTE "Ripple-free" is conventionally an r.m.s. ripple voltage not more than 10 % of the d.c. component.