GB 14048.1-2012 English PDF (GB14048.1-2012)

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GB 14048.1-2012: [GB/T 14048.1-2012] Low-voltage switchgear and controlgear -- Part 1: General rules
GB 14048.1–2012
ICS 29.130.01
K 30
NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC
OF CHINA
Replace GB 14048.1–2006
Low-voltage switchgear and
controlgear - Part 1. General rules
(IEC 60947-1. 2011, MOD)
ISSUED ON. DECEMBER 31, 2012
IMPLEMENTED ON. DECEMBER 01, 2013
Issued by.
General Administration of Quality Supervision, Inspection
and Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China
Table of Contents
Foreword ... 5
1 Basic requirements ... 10
1.1 Scope and objective ... 12
1.2 Normative references ... 13
2 Terms and definitions ... 18
3 Classification ... 61
4 Characteristics ... 61
4.1 Briefing of characteristics ... 62
4.2 Type of equipment ... 62
4.3 Rated value and limiting value of the main circuit ... 62
4.4 Utilization category ... 72
4.5 Control circuits ... 72
4.6 Auxiliary circuits ... 74
4.7 Relays and releases ... 74
4.8 Co-ordination with short-circuit protective devices (SCPD) ... 74
4.9 Switching over-voltages ... 75
5 Product information ... 75
5.1 Nature of information ... 75
5.2 Marking ... 77
5.3 Instructions for installation, operation and maintenance ... 78
6 Normal service, mounting and transport conditions ... 79
6.1 Normal service conditions ... 79
6.2 Conditions during transport and storage ... 82
6.3 Mounting ... 82
7 Structural and performance requirements ... 83
7.1 Structural requirements ... 83
7.2 Performance requirements ... 95
7.3 Electromagnetic compatibility (EMC) ... 107
8 Test ... 110
8.1 Classification of test ... 110
8.2 Verification of structural requirements ... 112
8.3 Verification of performance requirements ... 122
8.4 EMC test ... 157
Annex A (Informative) Examples of utilization categories for low-voltage
switchgear and controlgear ... 196
Annex B (Informative) Suitability of the equipment when conditions for
operation in service differ from the normal conditions ... 199
Annex C (Normative) Grades of protection of enclosed equipment ... 201
Annex D (Informative) Examples of clamping units and relationship
between clamping unit and connecting device ... 209
Annex E (Informative) Description of a method for adjusting the load
circuit ... 216
Annex F (Informative) Determination of short-circuit power-factor or
time-constant ... 219
Annex G (Informative) Measurement of creepage distances and
clearances ... 221
Annex H (Informative) Correlation between the nominal voltage of the
supply system and the rated impulse withstand voltage of equipment 227
Annex I Vacant ... 229
Annex J (Informative) Items subject to agreement between manufacturer
and user ... 230
Annex K (Normative) Humidity resistance performance and its
requirements ... 231
Annex L (Normative) Terminal marking and distinctive number ... 233
Annex M (Normative) Flammability test ... 246
Annex N (Normative) Requirements and test for equipment with
protective separation ... 253
Annex O (Informative) Environmental aspects ... 260
Annex P (Informative) Terminal lugs for low voltage switchgear and
controlgear connected to copper wire ... 272
Annex Q (Normative) Special test - Damp heat, salt mist, vibration and
shock ... 273
Annex R (Informative) Application of the metal foil for dielectric testing
on accessible parts during operation or adjustment ... 280
Annex S (Normative) Digital inputs and outputs ... 286
Annex T (Normative) Extended functions within electronic overload
relays ... 302
Annex U (Informative) Examples of control circuit configurations ... 310
Reference Documents ... 313
References and Original Chinese Documents ... 315
Foreword
Sub-clauses 7.1.2, 7.1.4, 7.1.7, 7.1.10, 7.2.3, 7.2.4 (excluding 7.2.4.3), 7.2.5, 7.2.7, 7.3,
8.2.1.1, 8.2.5, 8.3.3.4, 8.3.3.5, 8.3.3.6, 8.3.4, 8.4 and Annex K of this Part are mandatory.
The rest sub-clauses are recommendatory.
GB 14048 Low-voltage switchgear and controlgear series standards are divided into 18
parts.
— GB 14048.1 Low-voltage switchgear and controlgear—Part 1. General rules
— GB 14048.2 Low-voltage switchgear and controlgear - Part 2. Circuit-breakers
— GB 14048.3 Low-voltage switchgear and controlgear - Part 3.Switches disconnectors
switch-disconnectors and fuse-combination units
— GB 14048.4 Low-voltage switchgear and controlgear—Part 4-1.Contactors and
motor-starters—Electromechanical contactors and motor-starters(Including motor
protector)
— GB 14048.5 Low-voltage switchgear and controlgear - Part 5-1.Control circuit devices
and switching element - Electromechanical control circuit devices
— GB 14048.6 Low-voltage switchgear and controlgear - Part 4-2. Contactors and
motor-starters AC semiconductor motor controllers and starters(including soft-starter)
— GB 14048.7 Low-voltage switchgear and controlgear - Part 7-1. Ancillary equipment -
Terminal blocks for copper conductors
— GB 14048.8 Low-voltage switchgear and controlgear - Part 7-2. Ancillary equipment -
Protective conductor terminal blocks for copper conductors
— GB 14048.9 Low-voltage switchgear and controlgear - Section 6-2. Multiple function
equipment control and protective switching devices (or equipment) (CPS)
— GB 14048.10 Low-voltage switchgear and controlgear - Part 5-2. Control circuit
devices and switching element - Proximity switches
— GB 14048.11 Low-voltage switchgear and controlgear - Part 6-1. Multiple function
equipment - Transfer switching equipment
— GB 14048.12 Low-voltage switchgear and controlgear - Part 4-3. Contactors and
motor-starters-AC semiconductor controllers and contactors for non-motor loads
— GB 14048.13 Low-voltage switchgear and controlgear - Part 5-3. Control circuit
devices and switching elements - Requirements for proximity devices with defined
behavior under fault conditions(PDF)
— GB 14048.14 Low-voltage switchgear and controlgear - Part 5-5. Control circuit
devices and switching elements - Electrical emergency stop device with mechanical
latching function
— GB 14048.15 Low-voltage switchgear and controlgear - Part 5-6. Control circuit
devices and switching elements - DC interface for proximity sensors and switching
amplifiers(NAMUR)
— GB 14048.16 Low-voltage switchgear and controlgear - Part 8. Control units for
built-in thermal protection(PTC) for rotating electrical machines
— GB 14048.17 Low-voltage switchgear and controlgear - Part 5-4. Control circuit
devices and switching elements - Method of assessing the performance of
low-energy contacts - Special test
— GB/T 14048.18 Low-voltage switchgear and controlgear - Part 7-3. Ancillary
eq...