Browse Standards

数字通信用对绞或星绞多芯对称电缆 第31部分：工作区布线电缆 空白详细规范

Multicore and symmetrical pair/quad cables for digital communications - Part 31: Work area wiring - Blank detail specification

数字通信用对绞或星绞多芯对称电缆 第22部分：水平层布线电缆 能力认可 分规范

Multicore and symmetrical pair/quad cables for digital communications - Part 22: Horizontal floor wiring - Capability Approval - Sectional specification

数字通信用对绞或星绞多芯对称电缆 第2部分：水平层布线电缆 分规范

Multicore and symmetrical pair/quad cables for digital communications - Part 2：Horizontal floor wiring - Section specification

数字通信用对绞或星绞多芯对称电缆 第21部分：水平层布线电缆 空白详细规范

Multicore and symmetrical pair/quad cables for digital communications - Part 21: Horizontal floor wiring - Blank detail specification

数字通信用对绞或星绞多芯对称电缆 第1部分：总规范

Multicore and symmetrical pair/quad cables for digital communications Part 1: Generic specification

数字通信用对绞或星绞多芯对称电缆 第11部分：能力认可 总规范

Multicore and symmetrical pair/quad cables for digital communications - Part 11: Capability Approval - Generic specification

电气绝缘材料水解稳定性的试验方法 第1部分：塑料薄膜

Method of test the hydrolytic stability of electrical insulating materials - Part 1: Plastic films

电气继电器 第22-7部分：量度继电器和保护装置的电气骚扰试验-工频抗扰度试验

Electrical relays - Part 22-7: Electrical disturbance tests for measuring relays and protection equipment - Power frequency immunity tests

铁氧体磁心表面缺陷极限导则 第4部分：环形磁心

Ferrite cores-Guide on the limits of surface irregularities - Part 4: Ring-cores

磁性零件有效参数的计算

Calculation of the effective parameters of magnetic piece parts

磁性氧化物制成的PM磁心及其附件的尺寸

PM-cores made of magnetic oxides and associated parts-dimensions

磁性氧化物制成的低矮形磁芯的尺寸

Dimensions of low-profile cores made of magnetic oxides

城市轨道交通接触网检测车通用技术条件

General specification for the contact line measuring car of urban rail transit

电力变压器 第11部分：干式变压器

Power transforments - Part 11: Dry-type transformers

技术产品及技术产品文件结构原则 字母代码 按项目用途和任务划分的主类和子类

Structuring principles for technical products and technical product documentation - Letter codes - Main classes and subclasses of objects according to their purpose and task

标准电压

Standard voltages

中频设备额定电压

Rated voltages for medium frequency equipment

低压电涌保护器元件 第341部分：电涌抑制晶闸管（TSS）规范

Components for low-voltage surge protective devices - Part 341: Secification for thyristor surge suppressors(TSS)

低压电涌保护器元件 第331部分：金属氧化物压敏电阻（MOV）规范

Components for low-voltage surge protective devices - Part 331: Secification for metal oxide varistors(MOV)

低压电涌保护器元件 第321部分：雪崩击穿二极管（ABD）规范

Components for low-voltage surge protective devices - Part 321: Specifications for avalanche breakdown diode(ABD)