29.120.70 继电器 标准查询与下载

21/30445983 DC BS EN IEC 61810-7-49 全有或全无继电器 测试和测量 第7-49部分 密封的长期稳定性

BS EN IEC 61810-7-49. All-or-nothing electrical relays. Tests and Measurements - Part 7-49. Long term stability of sealing

21/30445987 DC BS EN IEC 61810-7-48 全有或全无继电器 测试和测量 第 7-48 部分 接触可靠性测试

BS EN IEC 61810-7-48. All-or-nothing electrical relays. Tests and Measurements - Part 7-48. Contact reliability test

21/30445979 DC BS EN IEC 61810-7-50 全有或全无继电器 测试和测量 第 7-50 部分 电源电压瞬时下降

BS EN IEC 61810-7-50. All-or-nothing electrical relays. Tests and Measurements - Part 7-50. Momentary drop in supply voltage

21/30445975 DC BS EN IEC 61810-7-52 全有或全无继电器 测试和测量 第 7-52 部分 线圈过电压

BS EN IEC 61810-7-52. All-or-nothing electrical relays. Tests and Measurements - Part 7-52. Coil overvoltage

21/30445611 DC BS EN 61810-7-39 全有或全无继电器 测试和测量 第 7-39 部分 插拔力（配合继电器和插座）

BS EN 61810-7-39. All-or-nothing electrical relays. Tests and Measurements - Part 7-39. Insertion and withdrawal force (mating relay and socket)

21/30445615 DC BS EN 61810-7-35 全有或全无继电器 测试和测量 第7-35部分 耐清洁溶剂

BS EN 61810-7-35. All-or-nothing electrical relays. Tests and Measurements - Part 7-35. Resistance to cleaning solvents

21/30445619 DC BS EN 61810-7-5 全有或全无继电器 测试和测量 第7-5部分 绝缘电阻

BS EN 61810-7-5. All-or-nothing electrical relays. Tests and Measurements - Part 7-5. Insulation resistance

21/30445169 DC BS EN IEC 61810-7-8 全有或全无继电器 测试和测量 第7-8部分 定时

BS EN IEC 61810-7-8. All-or-nothing electrical relays. Tests and Measurements - Part 7-8. Timing

21/30444917 DC BS EN IEC 61810-7-44 全有或全无继电器 测试和测量 第 7-44 部分 盐雾

BS EN IEC 61810-7-44. All-or-nothing electrical relays. Tests and Measurements - Part 7-44. Salt mist

21/30444905 DC BS EN IEC 61810-7-47 全有或全无继电器 测试和测量 第 7-47 部分 接通和分断能力

BS EN IEC 61810-7-47. All-or-nothing electrical relays. Tests and Measurements - Part 7-47. Making and breaking capacities

21/30444913 DC BS EN IEC 61810-7-45 全有或全无继电器 测试和测量 第 7-45 部分 最大循环频率

BS EN IEC 61810-7-45. All-or-nothing electrical relays. Tests and measurements - Part 7-45. Maximum cycling frequency

21/30444901 DC BS EN IEC 61810-7-51 全有或全无继电器 测试和测量 第7-51部分 线圈电压下降时的复位行为

BS EN IEC 61810-7-51. All-or-nothing electrical relays. Tests and Measurements - Part 7-51. Reset behavior at coil voltage drop

21/30444897 DC BS EN IEC 61810-7-53 全有或全无继电器 测试和测量 第7-53部分 电源电压缓慢下降和上升

BS EN IEC 61810-7-53. All-or-nothing electrical relays. Tests and Measurements - Part 7-53. Slow decrease and increase of supply voltage

21/30444893 DC BS EN IEC 61810-7-54 全有或全无继电器 测试和测量 第7-54部分 临界直流负载电流测试

BS EN IEC 61810-7-54. All-or-nothing electrical relays. Tests and Measurements - Part 7-54. Critical DC load current test

21/30444909 DC BS EN IEC 61810-7-46 全有或全无继电器 测试和测量 第 7-46 部分 浪涌耐受测试

BS EN IEC 61810-7-46. All-or-nothing electrical relays. Tests and Measurements - Part 7-46. Surge withstand test

BS EN IEC 60255-187-1:2021 测量继电器和保护设备 差动保护的功能要求 电机、发电机和变压器的约束和非约束差动保护

Measuring relays and protection equipment. Functional requirements for differential protection. Restrained and unrestrained differential protection of motors, generators and transformers

DS/EN IEC 60255-187-1:2021 测量继电器和保护设备《第 187-1 部分：差动保护的功能要求》《电动机、发电机和变压器的有限制和无限制差动保护》

Measuring relays and protection equipment – Part 187-1: Functional requirements for differential protection – Restrained and unrestrained differential protection of motors, generators and transformers

EN IEC 60255-187-1:2021 测量继电器和保护设备 第 187-1 部分：差动保护的功能要求 电动机、发电机和变压器的限制和非限制差动保护

IEC 60255-187-1:2021 specifies the minimum requirements for functional and performance evaluation of (longitudinal) differential protection designed for the detection of faults in ac motors, generators and transformers. This document also defines how to document and publish performance test results. This document defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions. The test methodologies for verifying performance characteristics and accuracy are also included in this document. This document, together with IEC 60255-187-2 and IEC 60255-187-3, cancels and replaces IEC 60255-13. This document includes the following significant technical changes with respect to IEC 60255-13: a) IEC 60255-13 has been significantly revised to follow the common structure of the functional standards for protection relays (IEC 60255-1xx series). IEC 60255-187-1 has been developed to address the restrained and unrestrained differential protection of motors, generators and transformers. The revisions include detailed description of the functions including the performance specification, testing and documentation requirements.

Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers

NF C45-205-187-1:2021 测量继电器和保护设备 第 187-1 部分：差动保护的功能要求 电动机、发电机和变压器的限制和非限制差动保护

Measuring relays and protection equipment - Part 187-1 : functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers

T/ZZB 2504-2021 家用和类似用途电器用防爆继电器

本文件规定了家用和类似用途电器用防爆继电器的术语与定义、影响量及工作条件、额定值、基本要求、技术要求、试验方法、检验规则、标志、包装、运输和贮存及质量承诺。 本文件适用于安装在家用和类似用途电器中，由电磁力产生预定响应的单稳态由n型保护的继电器（以下简称继电器）。

Explosion-proof relays for household and similar electrical appliances