GB 9816.1-2013Thermal-links - Part 1: Requirements and application guide (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting:

This document is Part 1 of GB/T 9816 "Thermal Links": GB/T 9816 has issued the following parts:

--- Part 1: Requirements and application guidelines;

--- Part 2: Special requirements for organic temperature-sensitive thermal fuses;

--- Part 3: Special requirements for fusible metal temperature-sensitive thermal-links:

This document replaces GB/T 9816.1-2013 "Thermal links Part 1: Requirements and application guidelines", and GB/T 9816.1-2013 in comparison, except for structural adjustments and editorial changes, the main technical changes are as follows:

a) The expression about Appendix H has been added in the scope (see Chapter 1);

b) Changed the definition of "holding temperature" (see 3.3, 3:3 of the:2013 edition);

c) Added the requirements for thermal link packaging components (see 4.4);

d) Change the number of samples required for the type test, change the test sequence and sample groups in Table 1, and divide the suspension section;

Added the applicability description of each appendix (see Chapter 5, Chapter 5 of the:2013 edition);

e) Added the terms of electrical conditions (see 6.1);

f) The requirements for the tracking resistance index of materials have been changed (see 6.3, 6:3 of the:2013 edition);

g) Added the position of the metal screen in the document, and some special thermal fuse installation application instructions (see Chapter 8);

h) Changed the chapter title to "Structure Requirements" (see Chapter 9, Chapter 9 of the:2013 edition), and changed the structure of Chapters 9 and 10 and the sequence of test items (see Chapter 9 and Chapter 10, Chapter 9 and Chapter 10 of the:2013 edition);

i) Added requirements for contacts used in current paths (see 9.3);

j) Increased accessible mounting brackets or metal parts (see 9.4);

k) Added requirements for insulating materials (see 9.5);

l) Added minimum requirements for tracking resistance index (PTI) (see 9.6, 10:5 of the:2013 edition);

m) Changed the title of the article as "Temperature and Humidity Cycle Treatment" and changed the test requirements (see 9.8, 10:2 of the:2013 edition);

n) Added requirements for terminals and ends (see 9.9);

o) Added the requirements for test parts of electric strength and insulation resistance (see 10.1:1 and 10:2:1, 10:3 and 10:4 of the:2013 edition);

p) Increase the applied voltage part (see Table 4);

q) Changed the grounding requirements for breaking current test [see 10.3:2:1 and 10:3:2:2, 10:6:2a), b) of the:2013 edition];

r) Changed the open circuit voltage requirements of the breaking current test circuit [see 10.3:2:4, 10:6:2c) of the:2013 edition];

s) Added tolerance requirements (see 10.3:2:5);

t) Changed the requirements for the breaking current test and added the requirements for the thermal link after the test [see 10.3:2:9 and 10:3:2:12,:2013 version 10:6:2g)];

u) Added the load type of the test current for the breaking current test (see Table 5);

v) Added compliance requirements for limited short-circuit test (see 10.5:4);

w) The requirements for the maximum operating temperature of thermal link packaging components have been added (see 11.1:9);

x) Added the sample specifications for breaking current test (see 13.3, 13:2 of the:2013 edition);

y) Changed the temperature coefficient requirements in the seal aging test (see Appendix E:2, Appendix E of the:2013 edition);

z) Changed the attribute of Appendix G from informative to normative (see Appendix G, Appendix G of the:2013 edition);

aa) The requirements for thermal link packaging components have been added (see Appendix H):

This document is modified to adopt IEC 60691:2023 "Guidelines for Requirements and Application of Thermal Links":

The technical differences between this document and IEC 60691:2023 and the reasons are as follows:

a) Added "This document specifies the terms and definitions, classification, structural requirements, electrical requirements, temperature test, anti-rust technology of thermal links "Technical Requirements" to meet the requirements of GB/T 1.1 (see Chapter 1);

b) Replaced IEC 61210:2010 with the normatively quoted GB/T 17196-2017 to adapt to my country's technical conditions and increase operability workability (see 9.1:2);

c) Replaced IEC 60112:2020 with the normatively quoted GB/T 4207 to adapt to my country's technical conditions and increase operability (see 9.6:2);

d) Replaced IEC 60127-2:2014 with the normatively quoted GB/T 9364.2-2018 to adapt to my country's technical conditions, increase Operability (see 10.3:2)

e) Replaced IEC 60695-2-12:2021 with the normatively quoted GB/T 5169.12-2013 to adapt to my country's technical conditions, increase Add operability (see Appendix H);

f) Replaced IEC 60695-2-13:2021 with the normatively quoted GB/T 5169.13-2013 to adapt to my country's technical conditions, increase Add operability (see Appendix H):

The following editorial changes have been made to this document:

a) Replace IEC 60664-1:2007 with the informative referenced GB/T 16935.1-2008 (see Table 3);

b) Replace IEC 60065:2014 (see Appendix A) with the informative reference of GB 8898:

Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:

Introduction

As a non-resettable one-time action thermal protection device, the thermal fuse is an irreplaceable and important over-temperature protection component:

Widely used in household appliances and industrial equipment; when the electrical equipment fails or is abnormal, the heat exceeds the set allowable temperature , rely on thermal fuses to actively cut off the circuit for protection, so as to avoid the danger of damaging the safety of electrical equipment: Therefore, the production of thermal fuses Product quality and performance are directly related to the safety of the whole machine and even the safety of people and the environment:

GB/T 9816 aims to standardize the technical requirements for thermal links, and is intended to be composed of three parts:

--- Part 1: Requirements and application guidelines: The purpose is to specify the general requirements, structural requirements, electrical requirements and other technical requirements of thermal fuses Require:

--- Part 2: Special requirements for organic temperature-sensitive thermal links: The purpose is to specify the common use of organic temperature-sensitive thermal fuses Requirements, mechanical requirements, electrical requirements, temperature requirements and other technical requirements:

--- Part 3: Special requirements for fusible metal temperature-sensitive thermal-links: The purpose is to specify the temperature-sensitive thermal fuse of easy fusion General requirements, mechanical requirements, electrical requirements, temperature requirements and other technical requirements:

This document provides guidance for the production of thermal link products, improves the technical performance, safety and reliability of products, and ensures the safety of the whole machine:

thermal link

Part 1: Requirements and application guidelines

1 Scope

This document specifies the classification, structural requirements, electrical requirements, temperature test, and technical requirements for rust prevention of thermal links:

This document applies to electrical appliances, electronic equipment and similar components installed in general indoor environments to prevent them from malfunctioning in case of overheating of the thermal link:

Note 1: The equipment is not necessarily designed to generate heat:

Note 2: The effectiveness of over-temperature protection is related to the installation position and installation method of the thermal fuse and the magnitude of the current it carries:

This document may also be used in non-indoor conditions if the climatic and other conditions in which the thermal-link is located are similar to those specified in this document:

The thermal link used under the condition:

This document also applies to thermal-links of simple shape (such as fusible links or fuses), as long as the molten material discharged during operation does not affect the safe use of equipment, especially for hand-held or portable devices, regardless of their location, will not affect their safe use:

Appendix H of this document applies to thermal-link bodies that have been approved by this document, but are encapsulated in a metal or non-metal shell and equipped with

Thermal link package assembly with terminals/leads:

This document applies to thermal links with a rated voltage not exceeding 690V AC and DC and a rated current not exceeding 63A:

The purpose of this document is to:

a) Formulate requirements for thermal links;

b) define the method of testing;

c) Provide useful information for the application of thermal links in equipment:

This document does not apply to:

---Thermal links used in extreme conditions such as corrosive or explosive atmospheres;

--- Thermal fuses on AC circuits with frequencies below 45Hz or above 62Hz:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references for documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document:

GB/T 4207 Method for determination of tracking resistance index and relative tracking index of solid insulating materials (GB/T 4207-2022, IEC 60112:2020, IDT) GB/T 5169.12-2013 Fire hazard tests for electrical and electronic products - Part 12: Basic test methods for glow wire/hot wire materials Glow-wire flammability index (GWFI) test method for materials (IEC 60695-2-12:2010, IDT) GB/T 5169.13-2013 Fire hazard tests for electrical and electronic products - Part 13: Basic test methods for glow wire/hot wire materials Glow-wire ignition temperature (GWIT) test method for materials (IEC 60695-2-13:2010, IDT) GB/T 5169.16-2017 Fire Hazard Tests for Electrical and Electronic Products Part 16: Test Flame 50W Horizontal and Vertical Fire Flame test method (IEC 60695-11-10:2013, IDT) GB/T 5169.21-2017 Fire Hazard Tests for Electrical and Electronic Products Part 21: Abnormal Hot Ball Pressure Test Method (IEC 60695-10-2:2014, IDT)