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GB/T 4706.127-2025: Safety of household and similar electrical appliances - Part 127: Particular requirements for water circulation heating blankets, mattresses and similar appliances
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Safety of household and similar electrical appliances - Part 127: Particular requirements for water circulation heating blankets, mattresses and similar appliances
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Basic data
Standard ID: GB/T 4706.127-2025 (GB/T4706.127-2025)
Description (Translated English): Safety of household and similar electrical appliances - Part 127: Particular requirements for water circulation heating blankets, mattresses and similar appliances
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y63
Classification of International Standard: 13.120
Word Count Estimation: 18,136
Date of Issue: 2025-08-29
Date of Implementation: 2026-08-01
Issuing agency(ies): State Administration for Market Regulation, National Standardization Administration
GB/T 4706.127-2025: Safety of household and similar electrical appliances - Part 127: Particular requirements for water circulation heating blankets, mattresses and similar appliances
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT4706.127-2025
ICS 13.120
CCSY63
National Standard of the People's Republic of China
Safety of household and similar electrical appliances
Part 127.Water-heated blankets, water-heated mattresses and similar
Special requirements for appliances
Released on August 29, 2025
Implementation on August 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General Requirements 2
5 General conditions for testing 2
6 Categories 2
7 Markings and instructions 2
8 Protection against contact with live parts 4
9 Starting of electric appliances 4
10 Input power and current 5
11 Fever 5
12 empty chapter 5
13 Leakage current and electrical strength at operating temperature 5
14 Transient overvoltage 5
15 Moisture resistance 5
16 Leakage current and electrical strength 5
17 Overload protection of transformers and related circuits 6
18 Durability 6
19 Abnormal work 6
20 Stability and mechanical hazards 6
21 Mechanical strength 6
22 Structure 7
23 Internal Wiring 7
24 Components 7
25 Power connection and external cord 7
26 Terminals for external conductors 7
27 Grounding measures 7
28 Screws and connections 8
29 Clearances, creepage distances and solid insulation 8
30 Heat and flame resistant 8
31 Rust Prevention 8
32 Radiation, toxicity and similar hazards 8
Appendix 9
Appendix AA (normative) Specific instructions for thermal insulation materials 9
Appendix BB (Normative) Water Heating Blanket Mechanical Strength Test Device 10
Reference 13
Preface
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 127 of GB/T 4706 "Safety of Household and Similar Electrical Appliances". GB/T 4706 has been published as follows
part.
--- Part 1.General requirements;
--- Part 2.Particular requirements for electric irons;
--- Part 121.Particular requirements for professional ice cream machines;
--- Part 127.Particular requirements for water-heating blankets, water-heating mattresses and similar appliances.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Light Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Household Electrical Appliances (SAC/TC46).
This document was drafted by. Qingdao Qindao Electric Co., Ltd., Chengdu Rainbow Electric (Group) Co., Ltd., China Electrical Science Research Institute
Research Institute Co., Ltd., Weikai Testing Technology Co., Ltd., Renqiu Dingsheng Heating Equipment Co., Ltd., Hebei Xiangfang Electric Co., Ltd.,
Xiaomi Communication Technology Co., Ltd., Qingdao Huimeng Intelligent Technology Co., Ltd., Haier Jingling Technology (Zhejiang) Co., Ltd., Jiaxing Weikai Testing Technology Co., Ltd.
Technology Co., Ltd., China Home Furnishing Institute (Beijing) Testing and Certification Co., Ltd., Renqiu Guohao Electrical Equipment Co., Ltd., Yuyue Home Textile Co., Ltd., Wenzhou
Tiangang Trading Co., Ltd. and Qingdao Product Quality Inspection Institute.
The main drafters of this document are. Yu Mengmeng, Cheng Liang, Chen Cankun, Jian Pengfei, Lü Haiyang, Zhou Bailong, Gao Yuan, Chen Pingan, Chen Lingdong, Wu Min,
Zhang Limin, Li Guoqing, Liu Kebao, Lin Yong, Li Li, and Dong Huabao.
introduction
In the GB/T 4706 "Safety of Household and Similar Electrical Appliances" series of standards, the vast majority adopt the IEC 60335 series of international standards.
On this basis, the structure of this series of standards refers to the structure of the IEC 60335 series of standards and is divided into several parts, consisting of general requirements and specific requirements.
For products covered by special requirements, their safety requirements are the general requirements combined with the special requirements.
The requirements include supplements and modifications to the corresponding clauses in the general requirements to provide complete requirements for each product.
In the case of the general requirements, they can be applied to various appliances not covered by the special requirements of the GB/T 4706 series of standards, as well as those according to the new principles.
In this case, consideration should be given to the classification of the appliance according to clause 6 and whether the appliance is attended or unattended.
Consideration should also be given to the specific categories of possible users and the associated specific risks, such as contact with live parts, heat
surfaces or hazardous moving parts.
It has been assumed in the preparation of this document that the provisions of the standard will be implemented by suitably qualified and experienced persons.
This document recognizes the electrical, mechanical, thermal, fire and other hazards of the appliance when used normally, taking into account the manufacturer's instructions.
It also includes the abnormal conditions that may occur during use and takes into account electromagnetic interference.
How the interference affects the safe operation of the equipment.
In developing this document, the requirements specified in GB/T 16895 have been taken into account as much as possible so that the appliance can be connected to the electrical supply.
The requirements of wiring regulations are coordinated and consistent.
If several functions of an appliance involve different special requirements in other parts, each of the functions of the appliance shall be subject to the following requirements, as far as is reasonable.
The functions shall comply with the relevant requirements in other parts respectively. If applicable, the impact of one function on other functions should be considered.
Note. In this document, when "other parts" are mentioned, they refer to the relevant special requirements in the GB/T 4706 series of standards.
When the "other parts" standards do not give additional requirements for hazards already included in this document, GB/T 4706.1 applies.
GB/T 4706 is a product series standard covering the safety of appliances and takes precedence over horizontal standards and general standards covering the same subject.
The part marked "applicable" in this document indicates that the corresponding clauses in GB/T 4706.1-2024 are applicable to this document;
For the part marked as "replacement", the provisions in this document shall prevail; for the part marked as "addition", it means that in addition to complying with GB/T 4706.1-
2024, the provisions added to the terms of this document must also be complied with; the part of this document marked "modified" means that
The corresponding clauses of GB/T 4706.1-2024 are modified.
Safety of household and similar electrical appliances
Part 127.Water-heated blankets, water-heated mattresses and similar
Special requirements for appliances
1 Scope
This chapter of GB/T 4706.1-2024 is replaced by the following content.
This document specifies the safety requirements for water-heating blankets, water-heating mattresses and similar appliances for household and similar purposes.
This document applies to water-heating blankets, water-heating mattresses and similar appliances for household and similar purposes, with a rated voltage not exceeding 250V.
This also applies to the main unit supplied with the appliance.
This document deals with common hazards arising from appliances which are encountered by all persons in and around the home. However, this document does not generally consider
The following situations.
---The following groups (including children).
● due to a physical, sensory or mental impairment; or
● Due to lack of experience and knowledge,
Conditions that render them unable to use the appliance safely without supervision or instruction.
--- The situation of children's play equipment.
Note 101.Pay attention to the following.
--- For appliances intended for use on mobile vehicles, ships or aircraft, additional requirements may be necessary;
--- National management departments may impose additional requirements on equipment;
---Relevant national departments have regulations on the installation of equipment connected to water sources.
Note 102.This document does not apply to.
---Electric blankets (GB/T 4706.8);
--- Waterbed heaters (GB/T 4706.58).
2 Normative references
This chapter of GB/T 4706.1-2024 applies.
3 Terms and Definitions
Except for the following, this chapter of GB/T 4706.1-2024 applies.
3.1.9
Normal operation
The appliance operates under the following conditions.
---Water heating blankets are placed between layers of insulation material;
---Water-heated mattresses are covered with a layer of thermal insulation material.
Specific instructions for thermal insulation materials are given in Appendix AA.
The blanket and mattress are supported by a 20mm thick plywood table and placed at least 300mm above the floor.
The size should be sufficient to fully support all parts of the insulation material, and the size of the insulation material layer should exceed the perimeter of the heating area by at least 100mm.
......
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