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Standard Code | Standard Title | Standard Class | Order |
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GB/T 43628-2023 |
MeTagenomic sequencing and identification method of airborne pathogenic microorganisms 空气中病原微生物宏基因组测序鉴定方法 |
China National Standards Tag |
English PDF |
GB/T 43626-2023 |
Safety regulations for semi-integrated LED lamps with power supply volTage not greater than AC rms 50V or ripple-free DC 120V for general lighting 普通照明用电源电压不大于交流有效值50V或无纹波直流120V的半集成式LED灯 安全规范 |
China National Standards Tag |
English PDF |
GB/T 43534-2023 |
Design and test method of AC side impedance of volTage source converter for high voltage direct current transmission 高压直流输电用电压源换流器交流侧阻抗设计及测试方法 |
China National Standards Tag |
English PDF |
GB/T 43524.1-2023 |
Subsea equipment Part 1: Power connectors, penetrations and jumper assemblies for rated volTages 3 kV (Umax=3.6 kV) to 30 kV (Umax=36 kV) 水下设备 第1部分:额定电压3 kV(Umax=3.6 kV)至30 kV(Umax=36 kV)电源连接器、贯穿装置和跨接线组件 |
China National Standards Tag |
English PDF |
GB/T 43495-2023 |
Application classification of radio frequency identification (RFID) electronic Tags for tires 轮胎用射频识别(RFID)电子标签应用分类 |
China National Standards Tag |
English PDF |
GB/T 43494-2023 |
Radio frequency identification (RFID) electronic Tag encoding for tires 轮胎用射频识别(RFID)电子标签编码 |
China National Standards Tag |
English PDF |
GB/T 43490-2023 |
Radio frequency identification (RFID) electronic Tags for tires 轮胎用射频识别(RFID)电子标签 |
China National Standards Tag |
English PDF |
GB/T 28819-2023 |
Aluminum alloy housing for inflatable high-volTage switchgear 充气高压开关设备用铝合金外壳 |
China National Standards Tag |
English PDF |
GB/T 22389-2023 |
Gapless metal oxide arrester for high volTage DC converter station 高压直流换流站无间隙金属氧化物避雷器 |
China National Standards Tag |
English PDF |
GB/T 7000.223-2023 |
Luminaires Part 2-23: Special requirements Extra-low volTage (ELV) lighting systems for use with extra-low voltage (ELV) light sources 灯具 第2-23部分:特殊要求 特低电压(ELV)光源用特低电压照明系统 |
China National Standards Tag |
English PDF |
GB/T 7000.217-2023 |
Luminaires Part 2-17: Special requirements Luminaires for sTage lighting, television, film and photography venues (indoor and outdoor) 灯具 第2-17部分:特殊要求 舞台灯光、电视、电影及摄影场所(室内外)用灯具 |
China National Standards Tag |
English PDF |
GB/T 30547-2023 |
Resistors for high volTage direct current transmission system filters 高压直流输电系统滤波器用电阻器 |
China National Standards Tag |
English PDF |
GB/T 43022.2-2023 |
Rail transit - DC surge arresters and volTage limiting devices - Part 2: Voltage limiting devices 轨道交通 直流避雷器和电压限制装置 第2部分:电压限制装置 |
China National Standards Tag |
English PDF |
GB/T 43022.1-2023 |
Rail transit - DC surge arresters and volTage limiting devices - Part 1: Gapless metal oxide surge arresters 轨道交通 直流避雷器和电压限制装置 第1部分:无间隙金属氧化物避雷器 |
China National Standards Tag |
English PDF |
GB/T 21413.5-2023 |
Rail transit - Electrical equipment for rolling stock - Part 5: Electrical devices - High volTage fuse rules 轨道交通 机车车辆电气设备 第5部分:电工器件 高压熔断器规则 |
China National Standards Tag |
English PDF |
GB/T 14048.1-2023 |
Low-volTage switchgear and controlgear Part 1: General 低压开关设备和控制设备 第1部分:总则 |
China National Standards Tag |
English PDF |
GB/T 43343-2023 |
High volTage insulation resistance meter 高压绝缘电阻表 |
China National Standards Tag |
English PDF |
GB/T 30553-2023 |
High volTage direct current transmission based on voltage source converter 基于电压源换流器的高压直流输电 |
China National Standards Tag |
English PDF |
GB/T 26215-2023 |
Capacitors for converter valve damping and absorption circuits in high-volTage direct current transmission systems 高压直流输电系统换流阀阻尼吸收回路用电容器 |
China National Standards Tag |
English PDF |
GB 25287-2023 |
Perimeter protection high-volTage power grid device 周界防范高压电网装置 |
China National Standards Tag |
English PDF |
GB/Z 43030-2023 |
Low volTage switchgear and control equipment Cybersecurity 低压开关设备和控制设备 网络安全 |
China National Standards Tag |
English PDF |
GB/Z 43029-2023 |
Low-volTage switchgear and control equipment and their complete sets Energy efficiency 低压开关设备和控制设备及其成套设备 能效 |
China National Standards Tag |
English PDF |
GB/Z 20833.5-2023 |
Rotating electrical machines - Winding insulation - Part 5: Offline measurement of partial discharge onset volTage under repeated impulse voltages 旋转电机 绕组绝缘 第5部分:重复冲击电压下局部放电起始电压的离线测量 |
China National Standards Tag |
English PDF |
GB/T 43224-2023 |
Detailed requirements for launch vehicle orbital sTage disposal 运载火箭轨道级处置详细要求 |
China National Standards Tag |
English PDF |
GB/T 43055-2023 |
General requirements for safe low-volTage electricity use in rural areas 农村低压安全用电通用要求 |
China National Standards Tag |
English PDF |
GB/T 43027-2023 |
High volTage power converter module testing method 高压电源变换器模块测试方法 |
China National Standards Tag |
English PDF |
GB/T 30845.1-2023 |
Plugs, socket-outlets and marine couplers for high-volTage shore power connection systems (HVSC systems) Part 1: General requirements 高压岸电连接系统(HVSC系统)用插头、插座和船用耦合器 第1部分:通用要求 |
China National Standards Tag |
English PDF |
GB/T 24975-2023 |
Environmentally Aware Design Guidelines for Low VolTage Electrical Appliances 低压电器环境意识设计导则 |
China National Standards Tag |
English PDF |
GB/T 1985-2023 |
High volTage AC isolating switch and earthing switch 高压交流隔离开关和接地开关 |
China National Standards Tag |
English PDF |
GB/T 16935.1-2023 |
Insulation coordination of equipment in low-volTage power supply systems Part 1: Principles, requirements and tests 低压供电系统内设备的绝缘配合 第1部分:原理、要求和试验 |
China National Standards Tag |
English PDF |
GB/T 16895.35-2023 |
Low-volTage electrical installations Part 8-1: Functional aspects Energy efficiency 低压电气装置 第 8-1 部分:功能方面 能源效率 |
China National Standards Tag |
English PDF |
GB/T 15166.2-2023 |
High volTage AC fuses Part 2: Current limiting fuses 高压交流熔断器 第2部分:限流熔断器 |
China National Standards Tag |
English PDF |
GB/T 42934-2023 |
Guidelines for evaluating the value of water cultural heriTage 水文化遗产价值评价指南 |
China National Standards Tag |
English PDF |
GB/T 38329.3-2023 |
Port ship-to-shore connection Part 3: Low-volTage shore connection (LVSC) systems General requirements 港口船岸连接 第3部分:低压岸电连接(LVSC)系统 一般要求 |
China National Standards Tag |
English PDF |
GB/T 7251.2-2023 |
Low volTage switchgear and control equipment complete sets Part 2: Power switchgear and control equipment complete sets 低压成套开关设备和控制设备 第2部分:成套电力开关和控制设备 |
China National Standards Tag |
English PDF |
GB/T 7251.1-2023 |
Low-volTage switchgear and controlgear complete sets Part 1: General provisions 低压成套开关设备和控制设备 第1部分:总则 |
China National Standards Tag |
English PDF |
GB/T 17626.11-2023 |
Electromagnetic compatibility - Testing and measurement techniques - Part 11: Immunity tests for volTage dips, short interruptions and voltage changes for equipment with input current less than or equal to 16 A per phase 电磁兼容 试验和测量技术 第11部分:对每相输入电流小于或等于16 A设备的电压暂降、短时中断和电压变化抗扰度试验 |
China National Standards Tag |
English PDF |
GB/T 22582-2023 |
Power Capacitor Low VolTage Power Factor Correction Device 电力电容器 低压功率因数校正装置 |
China National Standards Tag |
English PDF |
GB/T 19749.4-2023 |
Coupling capacitors and capacitive volTage dividers - Part 4: DC or AC single-phase capacitive voltage dividers 耦合电容器及电容分压器 第4部分:直流或交流单相电容分压器 |
China National Standards Tag |
English PDF |
GB/T 42719-2023 |
Triboelectric volTage detection method for planar materials 平面材料摩擦带电电压检测方法 |
China National Standards Tag |
English PDF |
GB/T 42364-2023 |
Diagnosis of conTagious agalactia 传染性无乳症诊断技术 |
China National Standards Tag |
English PDF |
GB/T 15166.6-2023 |
High-volTage AC fuses-Part 6: Guidelines for the selection of fuses for high-voltage fuses for transformer circuits 高压交流熔断器 第6部分:用于变压器回路的高压熔断器的熔断件选用导则 |
China National Standards Tag |
English PDF |
GB/T 15166.3-2023 |
High volTage AC fuses - Part 3: Jet fuses 高压交流熔断器 第3部分:喷射熔断器 |
China National Standards Tag |
English PDF |
GB/T 41732.2-2023 |
Radio frequency identification of animals - Enhanced radio frequency identification Tags - Part 2: Code and command structure 动物射频识别 增强型射频识别标签 第2部分:代码和指令结构 |
China National Standards Tag |
English PDF |
GB/T 16895.25-2022 |
Low-VolTage Electrical Installations Part 7-711: Requirements for Special Installations or Locations Exhibitions, Displays and Exhibition Areas 低压电气装置 第7-711部分:特殊装置或场所的要求 展览、展示及展区 |
China National Standards Tag |
English PDF |
GB/T 21697-2022 |
Insulation coordination of lightning overvolTage in low-voltage distribution lines and electronic systems 低压配电线路和电子系统中雷电过电压的绝缘配合 |
China National Standards Tag |
English PDF |
GB/T 41629.3-2022 |
Rated volTage 500 kV (Um=550 kV) XLPE insulated long-length AC submarine cables and accessories - Part 3: Submarine cable accessories 额定电压500 kV(Um=550 kV)交联聚乙烯绝缘大长度交流海底电缆及附件 第3部分:海底电缆附件 |
China National Standards Tag |
English PDF |
GB/T 41629.2-2022 |
Rated volTage 500 kV (Um=550 kV) XLPE insulated long-length AC submarine cables and accessories Part 2: Long-length AC submarine cables 额定电压500 kV(Um=550 kV)交联聚乙烯绝缘大长度交流海底电缆及附件 第2部分:大长度交流海底电缆 |
China National Standards Tag |
English PDF |
GB/T 41629.1-2022 |
Rated volTage 500 kV (Um=550 kV) XLPE insulated long-length AC submarine cables and accessories Part 1: Test methods and requirements 额定电压500 kV(Um=550 kV)交联聚乙烯绝缘大长度交流海底电缆及附件 第1部分:试验方法和要求 |
China National Standards Tag |
English PDF |
GB/Z 41390-2022 |
Power supply volTage for industrial automation instruments 工业自动化仪表用电源电压 |
China National Standards Tag |
English PDF |
GB/T 4109-2022 |
Insulated bushings for alternating volTages above 1 000 V 交流电压高于1000V的绝缘套管 |
China National Standards Tag |
English PDF |
GB/T 16895.22-2022 |
Low-volTage electrical installations - Part 5-53: Selection and installation of electrical equipment. Electrical appliances for safety protection, isolation, switching, control and monitoring 低压电气装置 第5-53部分:电气设备的选择和安装 用于安全防护、隔离、通断、控制和监测的电器 |
China National Standards Tag |
English PDF |
GB/T 16895.13-2022 |
Low-VolTage Electrical Installations Part 7-701: Requirements for Special Installations or Locations Locations with Tubs or Showers 低压电气装置 第7-701部分:特殊装置或场所的要求 装有浴盆或淋浴的场所 |
China National Standards Tag |
English PDF |
GB/T 18802.352-2022 |
Low-volTage surge arrester components - Part 352: Guidelines for the selection and use of surge isolating transformers (SIT) for telecommunication and signaling networks 低压电涌保护器元件 第352部分:电信和信号网络的电涌隔离变压器(SIT)的选择和使用导则 |
China National Standards Tag |
English PDF |
GB/T 42287-2022 |
High VolTage Test Techniques Electromagnetic and Acoustic Methods for Partial Discharge Measurements 高电压试验技术 电磁和声学法测量局部放电 |
China National Standards Tag |
English PDF |
GB/T 15166.5-2022 |
High-volTage AC fuses-Part 5: Guidelines for the selection of fuses for high-voltage fuses for motor circuits 高压交流熔断器 第5部分:用于电动机回路的高压熔断器的熔断件选用导则 |
China National Standards Tag |
English PDF |
GB/T 42149-2022 |
Rail transit Ground installations Technical specifications for current protection of medium-volTage power supply systems based on digital communication 轨道交通 地面装置 基于数字通信的中压供电系统电流保护技术规范 |
China National Standards Tag |
English PDF |
GB/T 42207.5-2022 |
Connectors for electronic equipment - Product requirements - Rectangular connectors - Part 5: Detail specification for snap lock rewirable power connectors with rated volTage DC 250 V and rated current 30 A 电子设备用连接器 产品要求 矩形连接器 第5部分:额定电压直流250 V额定电流30 A卡扣锁紧可重复接线电源连接器详细规范 |
China National Standards Tag |
English PDF |
GB/T 18216.10-2022 |
Equipment for testing, measuring or monitoring electrical safety protection measures for low-volTage power distribution systems up to and including 1000 V AC and 1500 V DC Part 10: Combined measuring equipment for testing, measuring or monitoring protecti 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第10部分:用于防护措施的试验、测量或监控的组合测量设备 |
China National Standards Tag |
English PDF |
GB/T 18216.6-2022 |
Equipment for testing, measuring or monitoring electrical safety protection measures for low-volTage power distribution systems up to and including 1000 V AC and 1500 V DC Part 6: Effectiveness of residual current devices (RCDs) in TT, TN and IT systems 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第6部分:TT、TN和IT系统中剩余电流装置(RCD)的有效性 |
China National Standards Tag |
English PDF |
GB/Z 41909-2022 |
Low-volTage switchgear and controlgear EMC assessment of switchgear and controlgear and their assemblies 低压开关设备和控制设备 开关设备和控制设备及其成套设备的EMC评估 |
China National Standards Tag |
English PDF |
GB/Z 41912-2022 |
Low-VolTage Switchgear and Controlgear Embedded Software Development Guide 低压开关设备和控制设备 嵌入式软件开发指南 |
China National Standards Tag |
English PDF |
GB/T 41911-2022 |
Power frequency overvolTage protective devices (POP) for household and similar purposes 家用和类似用途的工频过电压保护电器(POP) |
China National Standards Tag |
English PDF |
GB/T 14048.22-2022 |
Low-volTage switchgear and controlgear - Part 7-4: Auxiliary devices - PCB terminal blocks for copper conductors 低压开关设备和控制设备 第7-4部分:辅助器件 铜导体的PCB接线端子排 |
China National Standards Tag |
English PDF |
GB/T 14048.23-2022 |
Low-volTage switchgear and controlgear - Part 9-1: Arc fault active suppression systems - Arc extinguishing devices 低压开关设备和控制设备 第9-1部分:电弧故障主动抑制系统 灭弧电器 |
China National Standards Tag |
English PDF |
GB/T 2900.19-2022 |
Electrotechnical terms High volTage test techniques and insulation coordination 电工术语 高电压试验技术和绝缘配合 |
China National Standards Tag |
English PDF |
GB/T 20840.15-2022 |
Transformers - Part 15: Supplementary technical requirements for DC volTage transformers 互感器 第15部分:直流电压互感器的补充技术要求 |
China National Standards Tag |
English PDF |
GB/T 5169.47-2022 |
Fire Hazard Tests for Electric and Electronic Products - Part 47: Guidelines for Classification of Electric Power and Energy in Relation to the Probability of Ignition and Fire for Low-VolTage Electrical Products 电工电子产品着火危险试验 第47部分:与低压电工产品起燃和着火概率相关的电功率和能量分级导则 |
China National Standards Tag |
English PDF |
GB/T 29312-2022 |
Low-volTage reactive power compensation switching device 低压无功功率补偿投切器 |
China National Standards Tag |
English PDF |
GB/T 42009-2022 |
High volTage AC circuit breaker for filter 滤波器用高压交流断路器 |
China National Standards Tag |
English PDF |
GB/T 42001-2022 |
Altitude correction method for external insulation discharge volTage in high-voltage power transmission and transformation projects 高压输变电工程外绝缘放电电压海拔校正方法 |
China National Standards Tag |
English PDF |
GB/T 41922-2022 |
STage equipment fault data transmission interface and communication protocol specification 舞台装备故障数据传输接口和通讯协议规范 |
China National Standards Tag |
English PDF |
GB/T 36731-2018 |
Temporary construction of the sTage and stands of the performance venue safety "No. 1 Amendment" 临时搭建演出场所舞台、看台安全《第1号修改单》 |
China National Standards Tag |
English PDF |
GB/T 41732.1-2022 |
Radio frequency identification of animals - Enhanced radio frequency identification Tags - Part 1: Air interface 动物射频识别 增强型射频识别标签 第1部分:空中接口 |
China National Standards Tag |
English PDF |
GB/T 41734.3-2022 |
Radio Frequency Identification of Animals Part 3: Performance Evaluation of Radio Frequency Identification Tags Conforming to GB/T 20563 and GB/T 22334 动物射频识别 第3部分:符合GB/T 20563和GB/T 22334的射频识别标签性能评估 |
China National Standards Tag |
English PDF |
GB/T 41678.1-2022 |
Agricultural machinery and tractors Safety of high-volTage electrical and electronic components and systems Part 1: General requirements 农业机械和拖拉机 高压电气电子元件和系统的安全性 第1部分:通用要求 |
China National Standards Tag |
English PDF |
GB/T 42036-2022 |
Specification for inspection of single-phase grounding capacitor current in mine high-volTage power grid 矿井高压电网单相接地电容电流检验规范 |
China National Standards Tag |
English PDF |
GB/T 40226-2021 |
Detection of environmental microbial meTagenome—High throughput sequencing 环境微生物宏基因组检测 高通量测序法 |
China National Standards Tag |
English PDF |
GB/T 40119-2021 |
General technical specifications for RF Tag irrigation intelligent control system 射频卡灌溉智能控制系统通用技术条件 |
China National Standards Tag |
English PDF |
GB/T 38329.2-2021 |
Utility connections in port - Part 2: High and low volTage shore connection systems - Data communication for monitoring and control 港口船岸连接 第2部分:高压和低压岸电连接系统 监测和控制的数据传输 |
China National Standards Tag |
English PDF |
GB/T 14146-2021 |
Test method for carrier concentration of silicon epitaxial layers - Capacitance-volTage method 硅外延层载流子浓度的测试 电容-电压法 |
China National Standards Tag |
English PDF |
GB/T 4787.1-2021 |
Grading capacitors for high-volTage alternating current circuit-breakers—Part 1:General 高压交流断路器用均压电容器 第1部分:总则 |
China National Standards Tag |
English PDF |
GB/T 19216.3-2021 |
Circuit integrity test for electric cables or optical fiber cables under fire conditions—Part 3:Test method for fire with shock at a temperature of at least 830℃ for cables of rated volTage up to and including 0.6/1 kV tested in a metal enclosure 在火焰条件下电缆或光缆的线路完整性试验 第3部分:火焰温度不低于830 ℃的供火并施加冲击振动,额定电压0.6/1 kV及以下电缆穿在金属管中进行的试验方法 |
China National Standards Tag |
English PDF |
GB/T 19216.2-2021 |
Circuit integrity test for electric cables or optical fiber cables under fire conditions - Part 2: Test method for fire with shock at a temperature of at least 830 ℃ for cables of rated volTage up to and including 0.6/1 kV and with an overall diameter not 在火焰条件下电缆或光缆的线路完整性试验 第2部分:火焰温度不低于830 ℃的供火并施加冲击振动,额定电压0.6/1 kV及以下外径不超过20 mm电缆的试验方法 |
China National Standards Tag |
English PDF |
GB/T 19216.1-2021 |
Circuit integrity test for electric cables or optical fiber cables under fire conditions-Part 1:Test method for fire with shock at atemperature of at least 830 ℃ for cables of rated volTage up to and including 0.6/ 1 kV and with an overall diameter exceed 在火焰条件下电缆或光缆的线路完整性试验 第1部分:火焰温度不低于830 ℃的供火并施加冲击振动,额定电压0.6/1 kV及以下外径超过20 mm电缆的试验方法 |
China National Standards Tag |
English PDF |
GB/T 18216.5-2021 |
Electrical safety in low volTage distribution systems up to 1 000 V a.c, and 1500 V d.c.-Equipment for testing,measuring or monitoring of protective measures-Part 5:Resistance to earth 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第5部分:对地电阻 |
China National Standards Tag |
English PDF |
GB/T 18216.4-2021 |
Electrical safety in low volTage distribution systems up to 1 000 V a. c and 1 500 V d. c - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bonding 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第4部分:接地电阻和等电位接地电阻 |
China National Standards Tag |
English PDF |
GB/T 18216.3-2021 |
Electrical safety in low volTage distribution systems up to 1 000 V a. c. and 1 500 V d. c. - Equipment for testing, measuring or monitoring of protective measures - Part 3: Loop impedance 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第3部分:环路阻抗 |
China National Standards Tag |
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GB/T 18216.2-2021 |
Electrical safety in low volTage distribution systems up to 1 000 V a. c. and 1 500 V d. c. - Equipment for testing, measuring or monitoring of protective measures - Part 2: Insulation resistance 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第2部分:绝缘电阻 |
China National Standards Tag |
English PDF |
GB/T 18216.1-2021 |
Electrical safety in low volTage distribution systems up to 1 000 V a.c. and 1 500 V d.c.—Equipment for testing,measuring or monitoring of protective measures—Part 1:General requirements 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第1部分:通用要求 |
China National Standards Tag |
English PDF |
GB/T 16895.32-2021 |
Low volTage electrical installations - Part 7-712: Requirements for special installations or locations - Solar photovoltaic (PV) power supply systems 低压电气装置 第7-712部分:特殊装置或场所的要求 太阳能光伏(PV)电源系统 |
China National Standards Tag |
English PDF |
GB/T 39891-2021 |
Electrical endurance testing for circuit-breakers above a rated volTage of 52 kV 52kV及以上断路器电气耐久性试验方法 |
China National Standards Tag |
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GB/T 39852-2021 |
Electronic product code—Tag data translation 物品电子编码 标签数据转换 |
China National Standards Tag |
English PDF |
GB/T 24847-2021 |
Technical guide on 1000kV AC system volTage and reactive power 1000kV交流系统电压和无功电力技术导则 |
China National Standards Tag |
English PDF |
GB/T 20645-2021 |
Specific environmental condition—Technical requirements of low-volTage apparatuses for plateau 特殊环境条件 高原用低压电器技术要求 |
China National Standards Tag |
English PDF |
GB/T 18802.32-2021 |
Low-volTage surge protective devices—Part 32: Surge protective devices connected to photovoltaic installations—Selection and application principles 低压电涌保护器 第32部分:用于光伏系统的电涌保护器 选择和使用导则 |
China National Standards Tag |
English PDF |
GB/T 18802.31-2021 |
Low-volTage surge protective devices -- Part 31: Surge protective devices connected to photovoltaic installations -- Requirements and test methods 低压电涌保护器 第31部分:用于光伏系统的电涌保护器 性能要求和试验方法 |
China National Standards Tag |
English PDF |
GB/T 5095.2507-2021 |
Electromechanical components for electronic equipment—Basic testing procedures and measuring methods—Part 25-7: Test 25g: Impedance, reflection coefficient, and volTage standing wave ratio (VSWR) 电子设备用机电元件 基本试验规程及测量方法 第25-7部分:试验25g:阻抗、反射系数和电压驻波比(VSWR) |
China National Standards Tag |
English PDF |
GB/T 15166.4-2021 |
High-volTage alternating-current fuses -- Part 4:Fuse for exteanal protection of shunt capacitors 高压交流熔断器 第4部分:并联电容器外保护用熔断器 |
China National Standards Tag |
English PDF |
GB/T 41164-2021 |
Specifications technology for multisTage fracturing in horizontal well within roof of broken-soft and low permeability coal seam 碎软低渗煤层顶板水平井分段压裂技术规范 |
China National Standards Tag |
English PDF |
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