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GB/T 19214.1-2023Electrical accessories - Residual current monitors (RCMs) - Part 1: RCMs for household and similar uses (English PDF)

电器附件剩余电流监视器（RCM）第1部分：家用和类似用途剩余电流监视器

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

September 7, 2023

Implementation date

April 1, 2024

Scope

GB/T 19214.1-2023 is the English-translated version of 电器附件剩余电流监视器（RCM）第1部分：家用和类似用途剩余电流监视器.

GB/T 19214.1-2023 — This document applies to residual current for household and similar purposes with a rated voltage not exceeding AC 440V and a rated current not exceeding 125A. monitor.

This document specifies the classification, characteristics, technical requirements and testing of RCM. Note 1.A standard (IEC 62020-2) for residual current monitors whose rated operating voltage and rated voltage of the circuit being monitored exceeds 440V AC is under consideration.

RCM is used to monitor the residual current in the installation and the residual current generated between live parts and exposed conductive parts or ground. An alarm signal is issued when the predetermined value is exceeded.

RCM detects suddenly applied or slowly rising residual current in AC circuits (such as AC residual current, pulsating DC residual current, smooth DC residual current).

Note 2.RCM for DC systems is under consideration.

This document is applicable to functions that can simultaneously detect residual current, compare the residual current value with the residual operating current value, and the current A monitor that provides a specified alarm signal when the residual current exceeds the residual operating current value.

The technical requirements of this document apply to normal environmental conditions (see 7.1). For RCMs used in locations with harsh environmental conditions, it may be necessary to Additional technical requirements are required.

RCM is suitable for environments with pollution level 2 and overvoltage category III. For environments with higher pollution levels, it is advisable to use Protection grade casing.

RCM conforming to this document applies to TN, TT and IT systems. The RCM involved in this document cannot be used to protect electrical appliances. This document does not cover internal battery powered RCMs.

This document does not cover insulation monitors (IMD), which fall within the scope of IEC 61557-8. Note 3.The difference between RCM and IMD is that the monitoring function of RCM is passive and can only respond to the unbalanced fault current of the monitored device.

IMD monitoring and the measurement function is active, it can measure the balanced and unbalanced insulation resistance or impedance in the device (see IEC 61557-8).

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Document preview — GB/T 19214.1-2023

National Standard of the People's Republic of China

ICS: 29.120.50
Classification: K 31
Replacing: GB/T 19214-2008

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative reference documents
3 Terms and Definitions
4 Category
4.1 Divide into 5 points according to the action method
4.2 Divide into 5 according to device type
4.3 Score 5 points based on current loop number
4.4 Divide into 5 points based on the ability to adjust the residual operating current
4.5 Score 5 points based on the possibility of adjusting the delay
4.6 Points 5 based on protection against external influences
4.7 Divided into 5 according to installation method
4.8 Divided into 5 according to wiring method
4.9 Divided into 6 according to load wire connection type
4.10 Divide into 6 according to fault indicating device
4.11 According to the ability to distinguish the direction of residual current on the power side and load side, it is divided into 6 points
4.12 Divided into 6 according to power supply system
4.13 Divide 6 according to the monitored residual current type
4.14 Divided into 6 according to the residual current detection method
5 Characteristics of RCM
5.1 Feature Summary
5.2 Ratings and other characteristics 7
5.3 Standard and preferred values
5.4 Cooperation with short circuit protective device (SCPD) (only applicable to RCM classified according to 4.9.2)
6 Logo and other product data 10
7 Standard operating conditions for use and installation 12
7.1 Standard conditions
7.2 Installation conditions
8 Structural and operational requirements
8.1 Mechanical design
8.2 Protection against electric shock 16
8.3 Dielectric properties
8.4 Temperature rise
8.5 Action characteristics
8.6 Direction judgment
8.7 Operating life
8.8 Performance under short-circuit current 18
8.9 Mechanical impact resistance 18
8.10 Heat resistance 18
8.11 Resistance to abnormal heat generation and flame resistance 18
8.12 Test device
8.13 RCM operates correctly within the power supply voltage range
8.14 When the main circuit is over-current, the working status of RCM19
8.15 RCM's performance in preventing malfunction under the action of surge current generated by impulse voltage 19
8.16 When the ground fault current contains a DC component, the working condition of the RCM19
8.17 Reliability 19
8.18 Electromagnetic compatibility (EMC)
8.19 Connection of external current transformer (CT)
8.20 RCM response to temporary overvoltage on the low-voltage side caused by high-voltage side fault 19
9 Trial
9.1 General requirements
9.2 Test conditions
9.3 Marking durability test
9.4 Reliability testing of screws, current-carrying parts and connections 21
9.5 Reliability test of terminal blocks connected to external conductors
9.6 Verification of electric shock protection
9.7 Dielectric property test
9.8 Temperature rise test
9.9 Verify action characteristics
9.10 Verification of operating life
9.11 Verification of short-circuit withstand capability 31
9.12 Verification of mechanical impact resistance 35
9.13 Heat resistance test
9.14 Abnormal heating resistance and flame resistance test
9.15 Verification of operation of the test device at rated voltage limits 38
9.16 Verify the non-operating current limit value in case of overcurrent 38
9.17 Verify the performance against malfunction under the action of surge current caused by impulse voltage
9.18 Empty
9.19 Verify the correct operation when the residual current contains a DC component 39
9.20 Verify Reliability
9.21 Verify the anti-aging performance of electronic components
9.22 Verification of electromagnetic compatibility (EMC) requirements
9.23 RCM response to temporary overvoltage on the low-voltage side caused by high-voltage side fault
9.24 Anti-rust test
Appendix A (Normative) Test procedures and number of test specimens to verify compliance with this document
A.1 Summary
A.2 Test procedure
A.3 Number of test samples submitted for all test procedures
A.4 When a series of RCMs with the same basic design and structure are submitted for testing at the same time, the number of specimens for the simplified test procedure is
Appendix B (Normative) Determination of electrical clearances and creepage distances
Reference

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document is Part 1 of GB/T 19214 "Residual Current Monitor (RCM) for Electrical Accessories". GB/T 19214 has been released the following sections are included.

---Part 1: Residual current monitors for household and similar purposes.

This document replaces GB/T 19214-2008 "Residual current monitors for electrical accessories for household and similar purposes". This document is related to Compared with GB/T 19214-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

---Added the classification, action characteristics and verification requirements of Type F and Type B RCM (see 4.13, 5.2.6.3, 5.2.6.4 and 9.19.3);

---In the action characteristics test, the requirement to conduct separate tests at the TN and TT positions is deleted (see 9.9.2, 9.9.4 and Figure 3).

This document is equivalent to IEC 62020-1:2020 "Residual current monitor (RCM) for electrical accessories - Part 1: Household and similar Purpose Residual Current Monitor".

This document has made the following minimal editorial changes.

---In the action characteristic test and in Figure 3, the TN and TT position descriptions missing from the original text have been deleted.

--- Add a note in 9.11.2.1 to give reference information for the silver wire diameter, tau't and taup values at 10000A.

Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.

Introduction

Residual current monitors are used to monitor residual current in installations and are generated between live parts and exposed conductive parts or ground.

An electrical appliance that sends an alarm signal when the residual current exceeds a predetermined value. GB/T 19214 "Residual Current Monitor (RCM) for Electrical Accessories" refers to A series of standards for residual current monitor products is planned to consist of 2 parts.

---Part 1: Residual current monitors for household and similar purposes. The purpose is to specify the performance of RCM for household and similar purposes requirements and test methods and other product-related requirements.

---Part 2: Residual current monitors for industrial use up to 1000VAC. The purpose is to provide for industrial use of RCM Product-related requirements such as performance requirements and test methods.

Electrical accessories residual current monitor (RCM) Part 1: Household and similar use surplus Current monitor

1 Scope

This document applies to residual current for household and similar purposes with a rated voltage not exceeding AC 440V and a rated current not exceeding 125A.

monitor.

This document specifies the classification, characteristics, technical requirements and testing of RCM.

Note 1.A standard (IEC 62020-2) for residual current monitors whose rated operating voltage and rated voltage of the circuit being monitored exceeds 440V AC is under consideration.

RCM is used to monitor the residual current in the installation and the residual current generated between live parts and exposed conductive parts or ground.

An alarm signal is issued when the predetermined value is exceeded.

RCM detects suddenly applied or slowly rising residual current in AC circuits (such as AC residual current, pulsating DC residual current, smooth DC residual current).

Note 2.RCM for DC systems is under consideration.

RCM is suitable for environments with pollution level 2 and overvoltage category III. For environments with higher pollution levels, it is advisable to use Protection grade casing.

RCM conforming to this document applies to TN, TT and IT systems.

The RCM involved in this document cannot be used to protect electrical appliances.

This document does not cover internal battery powered RCMs.

This document does not cover insulation monitors (IMD), which fall within the scope of IEC 61557-8.

Note 3.The difference between RCM and IMD is that the monitoring function of RCM is passive and can only respond to the unbalanced fault current of the monitored device. IMD monitoring and the measurement function is active, it can measure the balanced and unbalanced insulation resistance or impedance in the device (see IEC 61557-8).

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations for undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 2423.4-2008 Environmental testing of electrical and electronic products Part 2: Test method test Db alternating damp heat (12h 12h cycle)(IEC 60068-2-30:2005,IDT) GB/T 5169.11-2017 Fire hazard test for electrical and electronic products Part 11: Glow wire/hot wire basic test method Glow wire flammability test method (GWEPT) for products (IEC 60695-2-11:2014, IDT) GB/T 16935.1-2023 Insulation coordination of equipment in low-voltage power supply systems Part 1: Principles, requirements and tests (IEC 60664-1:2020,IDT) Note. There is no technical difference between the quoted content of GB/T 16935.1-2023 and the quoted content of IEC 60664-1:2007.

IEC 60038 standard voltages Note. GB/T 156-2017 standard voltage (IEC 60038:2009, MOD)

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 82 pages — is available in the English PDF.

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