IEC 60947-1:2020 Low-voltage switchgear and controlgear-Part 1:General rules

The purpose of this document IEC 60947-1:2020 is to harmonize as far as practicable all rules and requirements of a general nature applicable to low-voltage switchgear and controlgear in order to obtain uniformity of requirements and tests throughout the corresponding range of equipment and to avoid the need for testing to different standards.

All those parts of the various equipment standards which can be considered as general have therefore been gathered in this document together with specific subjects of wide interest and application, e.g. temperature-rise, dielectric properties, etc.

For each type of low-voltage switchgear and controlgear, only two main documents are necessary to determine all requirements and tests:
1) this document, referred to as “Part 1” or “IEC 60947-1” in the specific standards covering the various types of low-voltage switchgear and controlgear;
2) the relevant equipment standard hereinafter referred to as the “relevant product standard” or “product standard of this series”.

For a general rule to apply to a specific product standard, it will be explicitly referred to by the latter, “by quoting the relevant clause or subclause number of this document followed by “IEC 60947-1” e.g. “7.2.3 of IEC 60947-1:20xx”.

A specific product standard will only deviate from the general rules when there is substantial technical justification.

NOTE All references to “product standards” in this document means “product standards of IEC 60947 series”

LISUN supplies the fully test solutions for the following IEC 60947-1:2020 , please see the below excel table:

IEC 60947-1:2020 Clause and Subject	LISUN Model
Clause 8.1.2.2 and 9.2.2.1 Glow Wire Testing	ZRS-3H
Clause 8.1.2.3 and 9.2.2.2 Hot Wire Ignition	RSY-LT
Clause 8.1.5.1 Insulation	LS9923
Clause 8.2.3.2 and Clause 9.3.3.4.1 Impulse withstand voltage	SUG255
Clause 8.2.3.3 Power-frequency or DC withstand voltage	HIPOT10-100KV
Clause 8.2.7 Leakage currents of equipment suitable for isolation	WB2675D
Clause 8.3.2-8.3.3 Electromagnetic compatibility (EMC)	EMI-9KB
Clause 9.1.5.3 Environmental Tests	GDJS-015B
	YWX/Q-010
	LVD-100KG
Clause 9.2.2.2 Flammability, hot wire ignition and arc ignition tests	ZY-3
Clause 9.2.5.3 Testing for damage to and accidental loosening of conductors (flexion test)	JCY-2
Clause 9.2.8.3 Bending Test	SW-6
Clause 9.2.8.4 Bending Test	CH338
Clause 9.3.3.3 Temperature-Rise	WS-1
Clause 9.3.3.5.3 Characteristics of transient recovery voltage	SUG335
Clause 9.4.2.2 Electrostatic Discharges	ESD61000-2
Clause 9.4.2.3 Radiated radio-frequency electromagnetic fields	GTEM-2
Clause 9.4.2.4 Electrostatic Discharges	RFCI61000-6
Clause 9.4.2.5 Electrical fast transients/bursts	EFT61000-4
Clause 9.4.2.6 Surges	SG61000-5
Clause 9.4.2.7 Power frequency magnetic fields	PFM61000-8A
Clause 9.4.2.8 Voltage dips and interruptions	CSS61000-11
Annex C.13.4 Dust test for first characteristic numerals 5 and 6	SC-015
Annex C.14 Tests for protection against water	JL-X