IEC 61558-12017 Safety of transformers, reactors, power supply units and combinations thereof – Part 1:General requirements and tests

IEC 61558-1:2017 is a safety standard developed by the International Electrotechnical Commission (IEC) for transformers, reactors, power supply units, and their combinations. It applies to various types of dry – type transformers, power supplies (including switching – mode power supplies), and reactors, whether they are stationary or mobile, single – phase or multi – phase, air – cooled, and used independently or in combination. The rated supply voltage of the relevant equipment shall not exceed 1000V AC, and the rated supply frequency shall not exceed 500Hz.

This standard covers a wide range of aspects, including markings and other information, protection against electric shock, load output voltage and current, no – load output voltage, short – circuit voltage, heating, short – circuit and overload protection, mechanical strength, protection against the harmful ingress of dust, solid foreign objects, and moisture, insulation resistance, dielectric strength and leakage current, structure, power supply connection and other external flexible cables or cords, heat resistance, fire resistance, and tracking resistance. It aims to ensure the safety and reliability of transformers, reactors, power supply units, and their combinations during use, safeguarding the personal safety of users and the normal operation of equipment.

LISUN supplies the fully test solutions for the following IEC 61558-1：2017, please see the below excel table:

IEC 61558-1：2017 Clause and Subject	LISUN MODEL
3.7 Insulation	WB2681A
18.2 Insulation resistance	WB2681A
3.7.9 creepage distance	CK-1
9.2.1 Determination of hazardous-live-parts	MNTC-G1
18.5.2 Touch current	MNTC-G1
9.2.2 IEC 61032, test probe 13	SMT-1312
9.2.2 IEC 61032, test probe B	SMT-PBC
14.3.2 Heat run	GDJS-015B
17.2 Humidity treatment
19.10 a)Ageing test
28 Resistance to rusting
14.3.3 Vibration	LVD-100KG
16.4 a) tumbling barrel Test&Distortion of pins and damage	LS-DDT1-B
16.4 a) tumbling barrel Test&Distortion of pins and damage	LS-B10
17.1 Degrees of protection provided by enclosures (IP code)	JL-X
17.1.2 test probe C and D of IEC 61032	SMT-1203C
17.1.2 test probe C and D of IEC 61032	SMT-1204C
19.1.4 Isolating transformers and safety isolating transformers	ITEU-SP4K
19.2 Flammability of materials	ZRS-3H
27.4 Resistance to fire
Annex E) Glow-wire test
19.10 b）Impact test	IK01-07
22.9.4 Flexing Test	SW-6
27.2 Resistance to heat	ZBP-T
27.5 Resistance to tracking	TTC-1
Annex G Tracking test	TTC-1
Annex R.1 Impulse dielectric test	SUG255