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GB/T 3797-2005 PDF in English

GB/T 3797-2005 (GB/T3797-2005, GBT 3797-2005, GBT3797-2005)
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GB/T 3797-2005: PDF in English (GBT 3797-2005)

GB/T 3797-2005
ICS 29.240.30
K 62
Replacing GB/T 3797-1989
Electrical Control Assemblies
Jointly Issued by. General Administration of Quality Supervision, Inspection
and Quarantine (AQSIQ);
Standardization Administration (SAC) of the People's
Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Technical Requirements ... 6
5 Test ... 17
6 Nameplate, Marking, Packing and Transport ... 29
Appendix A (Normative) Control Unit Test ... 30
Appendix B (Informative) Temperature Rise Measurement by Resistance Method ... 32
This standard is a revision to GB/T 3797-1989 "Electric-driving Controlgear - Part 2.
Electric-driving Controlgear Incorporating Electronic Devices".
Compared with GB/T 3797-1989, the main changes in this standard are as follows.
- due to the abolishment of GB 4720-1984 "Electric-driving Controlgear - Part 1.
Electric-driving Controlgear Composed of Low-voltage Apparatus", the standard name
was change by deleting "Electric-driving Controlgear - Part 2" in the name.
- the items and details of environment test were modified, with humid heat test added and
transport test deleted.
- the no-load test, low-voltage current test and load test in the type test were incorporated
into energized operation test.
- the interference resistance test was modified. Refer to GB 7251.1-2005 "Low-voltage
Switchgear and Controlgear Assemblies - Part 1. Type-tested and Partially Type-tested
Assemblies" and IEC 61800-3 "Adjustable Speed Electrical Power Drive Systems - Part
3 EMC Requirements and Specific Test Methods" for details.
- due to different product features, electrical performance test was changed into an
optional item of which the specific requirements are provided in product technical
Appendix A in this standard is normative.
Appendix B in this standard is informative.
From the implementation date, this standard replaces GB/T 3797-1989 "Electric-driving
Controlgear - Part 2. Electric-driving Controlgear Incorporating Electronic Devices".
This standard was proposed by China Electrical Equipment Industrial Association.
This standard is under the jurisdiction of the National Technical Committee on Low-voltage
Switchgear and Controlgear Assemblies of Standardization Administration of China.
Chief drafting organizations of this standard. Tianjin Design and Research Institute of Electric
Drive, China National Center for Quality Supervision and Test of Electrical Control and
Distribution Equipment, Tianshui Electric Drive Research Institute, Chengdu Jialing Electric
Manufacture Co., Ltd., Suzhou Intelligent Power Distribution Automation Co., Ltd., and
Zhejiang Jianhuan Electric Machine Co., Ltd.
Chief drafting staffs of this standard. Yu Xiuwen, Ou Huian, Zou Yi, Liu Shumin, Ma Jiquan,
Yu Zhibin, Wu Jialin, Fu Hangning, Li Tingting, and Niu Yongzhe.
The previous editions replaced by this standard are as follows.
GB 3797-1983 and GB/T 3797-1989.
Electrical Control Assemblies
1 Scope
This standard specifies the terms and definitions, usage conditions of electrical control
assemblies, and the basic requirements of their design, manufacture and test.
This standard is applicable to electrical control assemblies with frequency less than or equal
to 1000Hz and rated voltage less than or equal to 1000(1140)V (AC) and 1500V (DC)
(hereinafter referred to as control assemblies or assemblies).
2 Normative References
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this standard. For dated references, subsequent amendments
(excluding corrigendum) or revisions of these publications do not apply. However, all parties
who reach an agreement according to this standard are encouraged to study whether the latest
editions of these documents are applicable. For undated references, the latest edition of the
normative documents referred to applies.
GB 156 Standard Voltage (neq IEC 60038)
GB/T 762 Standard Current (eqv IEC 60059)
GB/T 2681 Colours of Insulated Conductors Used in Electrical Assembly Devices
GB/T 2682 Colours of Indicator Lights and Push-buttons Used in Electrical Assembly
GB/T 3047.1 Series of Basic Dimensions of Panels, Rack and Cabinets for Vertical
Increment of 20mm
GB/T 3859.1 Semiconductor Convertors - Specification of Basic Requirements (eqv IEC
601 46)
GB/T 4205 Standard Directions of Movement for Actuators Which Control the
Operation of Electrical Apparatus (eqv IEC. 60447)
GB 4208 Degrees of Protection Provided by Enclosure (IP Code) (eqv IEC 60529)
GB/T 4588.1 Sectional Specification. Single and Double Sided Printed circuit boards
with Plain Holes
GB/T 4588.2 Sectional Specification. Single and Double Sided Printed circuit boards
With Plated-through Holes
GB 7251.1-2005 Low-voltage Switchgear and Controlgear Assemblies - Part 1.
Type-tested and Partially Type-tested Assemblies (idt IEC 60439-1. 1999)
GB/T 10233 Basic Test Method for Electric-drive Controlgear Assemblies
JB/T 3085 Code for Package and Transport of Electric-drive Controlgear
IEC 61800-3.1996 Adjustable Speed Electrical Power Dive Systems - Part 3. EMC
Product Standard including Specific Test Methods
3 Terms and Definitions
For the purpose of this standard, the following terms and definitions as well as those defined
in GB 7251.1-2005 apply.
Electrical control assemblies
The control assemblies equipped with information technology electronic devices and (or)
non-electronic devices.
Control unit
Universal assembling unit of electrical control assemblies, which mainly consists of
printed-circuit board with electronic devices, with panel and connector assembly (or
enclosure and terminal), capable of unifying signal level and with the specified power
Electromagnetic compatibility (EMC)
Capability of guaranteeing that the assemblies or systems operate normally in electromagnetic
environment and that the electromagnetic disturbance is acceptable for everything in such
Low frequency interference
Disturbance related to the conduction of low-frequency disturbance in the same low-voltage
supply network (from DC to 20kHz).
High frequency interference
Disturbance over hundreds of MHz, with the radiation disturbance up to 1000MHz.
4 Technical Requirements
4.1 Basic parameters
The rated voltage of assemblies shall be in accordance with the requirements of GB 156.
The rated current of assemblies shall be in accordance with the requirements of GB/T 762.
In practice, the above parameters shall be subject to those specified in product technical
4.2 Normal usage conditions
The control assemblies in compliance with this standard shall be installed indoor and shall be
able to operate normally under the following conditions.
5.2.1 General inspection
The following inspection items shall be carried out for assemblies.
a) Whether the assemblies comply with the manufacturing drawings and appropriate
standards and whether the components and devices are firmly and correctly
b) Whether the dimension, appearance and welding of assemblies meet relevant
c) Whether the surface of cabinet (console) body and panel are flat and smooth with
uniform paint layer;
d) Whether the door opening angle of assemblies is greater than or equal to 90° and can
open and close flexibly;
e) Whether all moving components as mechanical operating components, interlock and
lock catch operate flexibly and correctly;
f) Whether the specification, dimension, color mark, phase sequence and arrangement
of busbar and wire meet relevant requirements;
g) Whether the inserters and drawers are well installed;
h) Whether the protective functions of assemblies meet relevant requirements;
i) Whether the markings and accompanied technical documents and information of
assemblies are complete.
5.2.2 Electric clearance and creepage distance inspection
The minimum electric clearance and creepage distance between non-equipotential bare
conductors of assemblies as well as between their energized bare conductors and exposed
conductive components shall meet the requirements of Section 4.7 in this standard.
Visual inspection can be carried out during ex-factory test to guarantee the specified electric
clearance and creepage distance.
5.2.3 Enclosure protection grade test
According to GB 4208, the enclosure protection grade of assemblies shall meet the
requirements of Article in this standard.
Visual inspection can be carried out during ex-factory test to guarantee the specified
protection grade.
5.2.4 Insulation resistance test
During measurement, the voltage grade of tramegger in use shall be determined according to
the rated operating voltage of assemblies. At least 50...
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.