IEC SYSTEM FOR CONFIRMITY TESTING AND COMMITTEE OF TESTING LABORATORIES
CERTIFICATION OF ELECTRICAL EQUIPMENT
IEC 61558-1, ED. (1.1) (1998)
TESTING AND MEASURING EQUIPMENT/ALLOWED SUBCONTRACTING
Safety of power transformers, power supply units and similar devices
Part 1: General requirements and tests
R=Required by Lab
S=May be subcontracted
Clause Measurement/testing Testing / measuring equipment / material needed Subcontracting
8.15 Marking Piece of cloth, water, hexane R
9.1 Protection against accessibility to hazardous Standard test finger (IEC 60529), test probe (2,5mm), multimeter, oscilloscope
live parts / Measuring network (Annex J) R
11.1 / 12 / 13 Output voltage and output current under load
measures / No-load output voltage measures / Power supply, multimeter, amperometer, wattmeter R
Short-circuit voltage test
14.2 / 15.2 / 15.3 Heating test / Short circuit and overload Power supply, impedances, ohmmeter, thermocouples, thermometer,
15.4 / 15.5 protection test / Short circuit and overload amperometer, oven if ta > 25°C R
protection test for fail safe transformers
16.2 / 16.3 / 16.4 Mechanical strength tests Spring hammer, steel plate, tumbling barrel, dynamometer and torquemeter R
- Protection against ingress of solid objects - IP3X (2,5mm probe), IP4X (1mm probe) R
17.1 - Protection against ingress of dust and water - Dust chamber (IP 5X and IP 6X) - Apparatus for protection against water
tests S
17.2 Humidity test Humidity cabinet R
18.2 Insulation resistance tests Megaohmmeter R
18.3 Dielectric strength tests High voltage transformer / Dummy lamp R
18.4 Higher frequency test Frequency converter R
19.10 Ageing test / Impact test / Scratch test Heating cabinet / Spring hammer / Hardened steel pin R
2002-10-14 1/2 SAFE/INF/01/2002
IEC SYSTEM FOR CONFIRMITY TESTING AND COMMITTEE OF TESTING LABORATORIES
CERTIFICATION OF ELECTRICAL EQUIPMENT
Clause Measurement/testing Testing / measuring equipment / material needed Subcontracting
19.12.3 Insulated winding wires construction (according
to IEC 60851-3/5/6) Heating cabinet, high voltage transformer, mandrels R
19.15 Strain test on socket-outlets Apparatus for torque measuring on socket R
20.5 / 20.5.3 Thermal cut-out tests (based on IEC 60730-1) /
Tests on PTC resistor Power supply (cycled) R
22.9.4 Protection against excessive flexing of cords Flexing test apparatus R
22.9.5 / 23.2 / Cord anchorage test / Pull test for terminals /
23.4 Terminals contact pressure Torque meter / Dynamometer R
24.4 Protective earthing test Earthing test equipment R
25 Screws and connections (mechanical) and
glands testing Screwdriver or spanner, test rod R
26.2 Creepage and clearance distances Sliding caliper / Thickness caliper / Climatic chamber R
26.3 Distances through insulation Mandrel apparatus R
27.1 / 27.2 / 27.4 Resistance to heat / fire tests Heating cabinet / Glow wire test apparatus / Ball pressure test apparatus R
27.3 Resistance to ignition testing Power supply, fuses, impedances R
27.5 Resistance to tracking test Proof tracking test device R
28 Resistance to rusting Humidity cabinet / Heating cabinet R
Note: The presence of equipment alone does not indicate a satisfactory situation. Assessors must evaluate the equipment design, calibration, uncertainty and
documentation to ensure compliance with the directions of the standard. The requirements of ISO Guide 25 regarding validation are applicable, as the tests of this standard
are not standardised tests.
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