This standard specifies the terms and definitions, operating conditions, and basic requirements for design, manufacture, and testing of electrical control equipment. This standard applies to electrical control equipment with a rated voltage of no more than 1 000 (1 140) V AC, a frequency of no more than 1 000 Hz, and a rated voltage of no more than 1 500 V DC. GB/T 3797-2005 Electrical Control Equipment GB/T3797-2005 Standard Download Decompression Password: www.bzxz.net

ICS 29.240.30
National Standard of the People's Republic of China
GB/T3797—2005
Replaces GB/T3797—1989
Electrical control equipment
Electrical control assemblies2005-02-06Promulgated
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaStandardization Administration of the People's Republic of China
Implementation on August 1, 2005
GB/T 3797—2005
2Normative references
3Terms and definitions
4Technical requirements….
Nameplate and marking, packaging and transportation
Appendix A (Normative Appendix)
Appendix B (Informative Appendix)
Control unit test
Measurement of temperature rise by resistance method
GB/T 3797—2005
This standard is a revision of B/T3797—1989≤Electronic control equipment Part 2:Electronic control equipment equipped with electronic devices". Compared with GB/T3797-1989, the main changes of this standard are as follows: Due to the difference between GB4720-1984 "Electrical Control Equipment Part 1: Low Voltage Electrical Appliances and Electronic Control Equipment", the words "Electrical Control Equipment Part 2\" are cancelled and the name of the standard is modified. The items and contents of the environmental test are modified, the damp heat test is added, and the transportation test is cancelled. The no-load test, low-voltage current test and load test in the type test items are included in the power-on operation test. The content of the anti-interference test is modified. For specific requirements, refer to GB7251.1-2005 "Low Voltage Complete Switchgear and Control Equipment Part 1: Type Test and Partial Type Test Equipment" and IEC61800-3 "Speed ​​Regulating Electrical Drive System Part 3: Electromagnetic Compatibility Standards for Products and Their Specific Test Methods". Due to the different product characteristics, the electrical performance test is modified to a recommended item, and its specific requirements are given by the product technical documents.
Appendix A of this standard is a normative appendix. This standard Appendix B of this standard is an informative appendix.
From the date of implementation of this standard, GB/T3797-1989 Electric Control Equipment Part 2, Electric Control Equipment with Electronic Devices\ shall be abolished. This standard is proposed by the China Electrical Equipment Industry Association. This standard is under the jurisdiction of the National Technical Committee for Standardization of Complete Switchgear and Control Equipment. The main drafting units of this standard are: Tianjin Electric Drive Design and Research Institute, National Electric Control and Distribution Equipment Quality Supervision and Inspection Center, Tianshui Electric Drive Research Institute, Chengdu Zuoling Electric Gas Manufacturing Co., Ltd., Suzhou Intelligent Power Distribution Automation Co., Ltd. Jianjiang Jianhuan Electrical Machinery Co., Ltd. The main drafters of this standard are Yu Xiuwen, Ou Huian, Zou Yi, Liu Shumin, Ma Jiquan, Yu Zhibin, Qian Jialin, Fu Hangning, Li Tingting, and Niu Yong.
The previous versions of the standards replaced by this standard are: GB3797-1983.GB/T3797-1989. 1
1Scope
Electrical control equipment
GB/T 3797—2005
This standard specifies the terms and definitions, conditions of use, and basic requirements for design, manufacture and testing of electrical control equipment. This standard is applicable to electrical control equipment (hereinafter referred to as electrical control equipment or equipment) with a rated voltage of not more than 1000 (1140) V for AC, a frequency of not more than 1000 Hz, and a rated voltage of not more than 1500 V for DC. 2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard. GR756 Standard Voltage (negIEC60038) CB/T762 Standard current (eqvIEC60059) GB/T2681 Wire colors in electrical complete sets GB/T2682 Colors of indicator lights and buttons in electrical complete sets GB/T3047.1 Basic dimension series of panels, racks and cabinets with a height of 20 mm GR/T3859.1 Provisions for basic requirements of semiconductor converters (egvIEC60146) GB/T4205 Standard movement direction of operating parts for controlling electrical equipment (eqvIEC60447) GR4208 Enclosure protection degree (IP code) (eqvJFC:60529) GB/T4588.1 Sectional specification for single-sided and double-sided printed boards without metallized holes G13/T4588.2 Sectional specification for single-sided and double-sided printed boards with metallized holes GB7251.1-2005 Low-length complete sets of switchgear and control equipment Part 1: Type test and partial type test complete sets (idt IEC 60439-1:1999)
G3/T10233 Basic test methods for electric drive control equipment JB/T3085 Product packaging and transportation regulations for electric drive control devices IFC618003:1996 Speed-adjustable electric drive systems Part 3: Electromagnetic compatibility standards for products and their specific test methods 3 Terms and definitions
The following terms and definitions established in GB7251.1-2005 and the following terms and definitions apply to this standard. 3.1
Electrical control equipmentelectricaiconfrolassemblies refers to control equipment equipped with electronic devices and (or) non-electronic devices that may contain information technology. 3.2
Control unitcontrol nnit
General assembly of electric control equipment. It is mainly composed of a printed circuit board equipped with electronic components, with a panel and a plug socket (or a housing and terminals), with a unified signal level and specified electrical functions. 3.3
Electromagnetic compatibility (EMC) The ability of a device or system to work normally in its electromagnetic environment and not cause unacceptable electromagnetic interference to anything in the environment.
GB/T 3797—2005wwW.bzxz.Net
Low frequency interference Low frequency interference Disturbance related to low frequency disturbances conducted in low voltage power supply networks (from DC to 20kHz). 3.5
High frequency interference High frequency interference reaches hundreds of MHz, and radiated disturbance reaches 1000MHz. 4 Technical requirements
4. 1 Basic parameters
The rated voltage of the equipment shall be in accordance with the provisions of GB156. The rated current of the equipment shall be in accordance with the provisions of GI3/T762. When selecting specifically, the product technical documents shall be clearly specified. 4.2 Normal use cases
The electronic control equipment that meets this standard is installed indoors and can work normally under the following conditions. 4.2.1 Ambient temperature and relative humidity
The ambient temperature shall not exceed +40℃, and its average temperature shall not exceed +35℃ within 24h. The minimum ambient temperature shall not be lower than -5℃ (or +5℃).
When the maximum temperature is +40℃, the relative humidity shall not exceed 50%. At lower temperatures, a higher relative humidity is allowed. For example: the relative humidity is 90% at +20℃. It should be noted that due to temperature changes, moderate condensation may occur occasionally. 4.2.2 Pollution level
There shall be no excessive dust, acid, salt, corrosive and explosive gases in the air. If there are no other regulations, the equipment is generally used in a pollution level 2 environment (see 6.1.2.3 of GB7251.1-2005 for the pollution level). If a higher design value is used, it should be stated in the data.
4.2.3 Altitude
The altitude of the installation site shall not exceed 1000m. Note: For equipment used at altitudes above 1000m, it is necessary to consider the reduction in dielectric strength and the reduction in the air cooling effect. Control equipment intended for use under these conditions is recommended to be designed and used in accordance with the agreement between the manufacturer and the user. 4.2.4 Installation conditions
The equipment should be installed in accordance with the instructions for use provided by the manufacturer. For vertically installed equipment, the installation inclination shall not exceed 5° 4.2.5 Power supply
If there are no other provisions, the following requirements apply: The AC voltage variation range is equal to ±10% of the input rated voltage, short-term (not exceeding 0.55) The AC voltage fluctuation range is -15% to -10% of the input rated voltage. The relative harmonic component should not exceed 10%.
c) The commutation notch depth t of the AC voltage shown in Figure 1 should not exceed 40% of the working voltage peak ULm, and the commutation notch area should not exceed 250 (% × degrees).
d) The ratio of non-repetitive and repetitive transient voltage to the working voltage peak should meet the following requirements: non-repetitive transient voltage peak ULsM/working voltage peak ULw≤2.5; repetitive transient voltage peak ULRM/working voltage peak Ur.M≤1.5. The power frequency deviation shall not exceed 2% of the rated frequency. f) The voltage variation range of the battery power supply is equal to ±15% of the rated power supply voltage. Note: This range does not include the additional voltage variation range required for battery charging. g) The maximum allowable power-off time of the equipment power supply voltage is given by the manufacturer. 2
Electromagnetic core
If a wider range of variation is required, it shall be subject to the agreement between the manufacturer and the user. h
4.3 Special conditions of use
Special conditions of use are as follows:
Ambient temperature, relative humidity, altitude are different from those specified in 4.2. a)
Rapid changes in temperature or atmosphere may produce abnormal condensation inside the equipment, and the atmosphere is seriously polluted by dust, smoke, corrosive or radioactive particles, steam or salt mist. Exposure to strong electric fields or strong magnetic fields.
Exposure to high temperatures, such as radiation from the sun or furnace. e)
Aggression by fungi or microorganisms.
Installation in places where there is a risk of fire or explosion. Severe vibration or shock.
CB/T 37972005
Installation in places where the current-carrying capacity and breaking capacity are affected, such as installing the equipment in a machine or in a wall. Take appropriate measures to resist interference other than that in 4.13. Other special conditions of use.
If any of the above special conditions of use exist, the applicable special requirements or the special agreement reached between the manufacturer and the user shall be followed. If such special conditions of use exist, the user shall inform the manufacturer. 4.4 General requirements
4.4.1 Components and devices
The components and devices installed in the equipment shall comply with the corresponding standards of the components and devices themselves. The manufacturer shall be responsible for using standard components and devices as much as possible. The selection of all components and devices shall meet the design requirements. 4.4.2 Printed boards
The printed boards used in the equipment shall comply with the provisions of GB/T4588.1 and (B/T4588.2. 4.4.3 Wire colors
The colors of the wires used in the equipment shall comply with the provisions of GB/T2581. 4.4.4 Colors of indicator lights and buttons
The colors of the indicator lights and buttons used in the equipment shall comply with the provisions of GB/I2682. 4.4.5 Control unit
The control unit used in the equipment shall comply with the requirements of the control unit test specified in this standard (see Appendix A). For various types of electronic control equipment 3
GB/T 3797—2005
The control unit used in the equipment shall be specified in the product technical documents of the equipment or the product technical documents of the control unit. 4.4.6 Operating mechanism
The equipment shall have a normal operating mechanism. If necessary, the equipment shall be equipped with an "emergency stop" switch or button. The switch or button shall be located in a position that is easy for the operator to find and operate. The operating handle or button of the switch must be red. The button is emergency type. The movement direction of the operating mechanism in the equipment shall comply with the provisions of GB/T4205. 4.5 Performance indicators
4.5.1 Electrical performance indicators
The relevant indicators used to characterize the working performance of the equipment shall be It shall be clearly specified in the relevant product technical documents. 4.5.2 Load level
The load level of the equipment shall be selected in accordance with GB/T3859.1, and may also be specified separately in the product technical documents. 4.5.3 Noise
The noise generated by the equipment during normal operation shall not be greater than 70dB (A sound level) when measured by a sound level meter. Note: For equipment that does not require frequent operation and monitoring, the noise value may be higher than the above value after agreement between the manufacturer and the user. 4.6 Cooling
The equipment may adopt natural cooling or forced cooling (wind cooling or water cooling). To ensure normal cooling, the manufacturer shall provide the necessary Data. 4.6.1 Natural cooling
When natural air cooling is used, sufficient space should be left around the heater to ensure the cooling conditions required by the components. 4.6.2 Forced air cooling
For equipment using forced air cooling, if necessary, a filter device should be installed at the air inlet to filter out dust in the air, or filtered air should be used as the air inlet. The inlet air temperature should be specified in the product technical documents. 4.6.3 Water cooling
When water cooling is used for equipment, a filter device should be installed in the cooling water circulation system. The cooling water circulation system (pipes, valves, etc.) cannot be made of iron products (except stainless steel), and plastic and nylon products are recommended. The heat exchanger is allowed to Copper tubes are allowed. 4.7 Electrical clearance and creepage distance
For equipment with rated impulse withstand voltage value, the minimum electrical clearance and creepage distance of the equipment shall be determined according to Table 14 and Table 16 in GB7251.1-2005.
If the rated impulse withstand voltage value of the equipment is not indicated, the inspection results shall comply with the provisions of Table 1. Table 1
Rated insulation voltage U:/V
,≤60
60U≤250
250,s380
380,≤500
500U660
660~U,≤750AC
6601 Electrical performance indicators
Related indicators used to characterize the working performance of the equipment shall be clearly specified in the relevant product technical documents. 4.5.2 Load level
The load level of the equipment shall be selected in accordance with GB/T3859.1, and may also be specified separately in the product technical documents. 4.5.3 Noise
The noise generated by the equipment during normal operation shall not be greater than 70dB (A sound level) when measured by a sound level meter. Note: For equipment that does not require frequent operation and monitoring, the noise value may be higher than the above value after agreement between the manufacturer and the user. 4.6 Cooling
The equipment can adopt natural cooling or forced cooling (wind cooling or water cooling). In order to ensure normal cooling, the manufacturer shall provide necessary information when special precautions are taken at the installation site. 4.6.1 Natural cooling
When natural air cooling is adopted, sufficient space shall be left around the heater to ensure the cooling conditions required by the components. 4.6.2 Forced air cooling
For equipment using forced air cooling, when necessary, a filter device should be installed at the air inlet to filter out dust in the air, or filtered air should be used as the air inlet. The inlet air temperature should be specified in the product technical documents. 4.6.3 Water cooling
When the equipment uses water cooling, the cooling water circulation system should be equipped with a filter device. The cooling water circulation system (pipes, valves, etc.) cannot use iron products (except stainless steel), and plastic and nylon products are recommended. Red copper tubes are allowed for heat exchangers. 4.7 Electrical clearance and creepage distance
For equipment with rated impulse withstand voltage values, the minimum electrical clearance and creepage distance of the equipment shall be determined in accordance with Table 14 and Table 16 of GB7251.1-2005.
If the rated impulse withstand voltage value of the equipment is not indicated, the inspection results shall comply with the provisions of Table 1. Table 1
Rated insulation voltage U:/V
,≤60
60U≤250
250,s380
380,≤500
500U660
660~U,≤750AC
6601 Electrical performance indicators
Related indicators used to characterize the working performance of the equipment shall be clearly specified in the relevant product technical documents. 4.5.2 Load level
The load level of the equipment shall be selected in accordance with GB/T3859.1, and may also be specified separately in the product technical documents. 4.5.3 Noise
The noise generated by the equipment during normal operation shall not be greater than 70dB (A sound level) when measured by a sound level meter. Note: For equipment that does not require frequent operation and monitoring, the noise value may be higher than the above value after agreement between the manufacturer and the user. 4.6 Cooling
The equipment can adopt natural cooling or forced cooling (wind cooling or water cooling). In order to ensure normal cooling, the manufacturer shall provide necessary information when special precautions are taken at the installation site. 4.6.1 Natural cooling
When natural air cooling is adopted, sufficient space shall be left around the heater to ensure the cooling conditions required by the components. 4.6.2 Forced air cooling
For equipment using forced air cooling, when necessary, a filter device should be installed at the air inlet to filter out dust in the air, or filtered air should be used as the air inlet. The inlet air temperature should be specified in the product technical documents. 4.6.3 Water cooling
When the equipment uses water cooling, the cooling water circulation system should be equipped with a filter device. The cooling water circulation system (pipes, valves, etc.) cannot use iron products (except stainless steel), and plastic and nylon products are recommended. Red copper tubes are allowed for heat exchangers. 4.7 Electrical clearance and creepage distance
For equipment with rated impulse withstand voltage values, the minimum electrical clearance and creepage distance of the equipment shall be determined in accordance with Table 14 and Table 16 of GB7251.1-2005.
If the rated impulse withstand voltage value of the equipment is not indicated, the inspection results shall comply with the provisions of Table 1. Table 1
Rated insulation voltage U:/V
,≤60
60U≤250
250,s380
380,≤500
500U660
660~U,≤750AC
660
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