GB/T 4706.31-2024Safety of household and similar electrical appliances - Part 31: Particular requirements for sauna heating appliances and infrared cabins (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 31 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.

This document replaces GB 4706.31-2008 "Particular requirements for safety of household and similar electrical appliances - sauna and heating appliances" and Compared with GB 4706.31-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) The scope of application of the document has been changed to cover infrared rooms (see Chapter 1, see Chapter 1 of the 2008 edition);

b) Added "infrared transmitter", "infrared transmitter unit", "prefabricated infrared room", "protective cover", "time preselection", and "control panel" Terms and definitions for "programmable timer" and "supervisory operation" (see 3.104 to 3.111);

c) Added tests for controllers and control panels (see 5.9); added tests for combined appliances of sauna heaters and infrared emitting units Test conditions (see 5.102);

d) Added the "Do Not Cover" mark in the instructions for use (7.6) and the description of the supervision operation (see 7.12), and added work instructions Installation requirements for the device, and give the model or reference type of controller and control panel (see 7.12.1);

e) Added installation and limit requirements for some appliances in heating test (see 11.2, 11.3, 11.8);

f) Added some requirements for sauna rooms (see 19.1), added abnormal tests for sauna heaters and infrared emitters (see 19.102, 19.103);

g) Increased mechanical strength requirements (see 21.1, 21.101, 21.102);

h) Added structural requirements (see 22.39, 22.51, 22.103, 22.108, 22.109, 22.110);

i) Added radiation requirements for infrared emitters in prefabricated infrared rooms (see 32.101);

j) Added examples of different types of sauna heating appliances (see Figure 103);

k) Added software evaluation (see Appendix R);

l) Added the assessment of infrared radiation (see Appendix BB).

This document is equivalent to IEC 60335-2-53:2021 "Safety of Household and Similar Electrical Appliances Part 2-53.Sauna Heating Appliances" and Special Requirements for Infrared Rooms.

The following minimal editorial changes were made to this document.

--- The name of the standard is changed to "Safety of Household and Similar Electrical Appliances Part 31: Special Requirements for Sauna Heating Appliances and Infrared Cabins Requirements" to enhance the coordination of the standard system.

Introduction

GB/T 4706 "Safety of Household and Similar Electrical Appliances" adopts most of IEC 60335.On this basis, GB/T 4706 refers to the structure of IEC 60335 is divided into several parts, consisting of general requirements and special requirements. Part 1 is general requirements, and the other parts are for products covered by special requirements, their safety requirements are general requirements used in combination 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.

This document is the protection requirements for electrical, mechanical, thermal, fire and radiation risks when the appliance is used normally in accordance with the instructions.

This document also covers abnormal conditions that may occur during use and considers how electromagnetic interference may affect the safe operation of the equipment.

This document has taken into account the requirements specified in GB/T 16895 "Low Voltage Electrical Installations". The appliance is connected to the power supply in accordance with the electrical wiring rules.

requirements are coordinated.

If multiple functions of an appliance involve other parts of GB/T 4706, the other parts shall apply to the appliance separately as long as it is reasonable.

Each function. If applicable, consider the impact of one function on other functions.

When no additional requirements are given in other parts for hazards already included in this document, GB/T 4706.1 applies.

GB/T 4706 is a standard covering appliance safety and takes precedence over general standards/horizontal standards covering the same subject.

This document is used in conjunction with GB/T 4706.1-2024 "Safety of Household and Similar Electrical Appliances Part 1: General Requirements".

The part marked "applicable" in the document indicates that GB/T 4706.1-2024 "Safety of Household and Similar Electrical Appliances - Part 1: General Requirements" the corresponding clauses in the "Requirements" shall apply to this document; for the parts marked "replace" in this document, the clauses in this document shall prevail;

The "Add" part indicates that in addition to complying with the corresponding clauses in GB/T 4706.1-2024, the additional clauses in this document must also be complied with.

Clause; The part marked "modified" in this document indicates that the corresponding clauses of GB/T 4706.1-2024 are modified.

Safety of household and similar electrical appliances Part 31.

Special requirements for sauna heating appliances and infrared cabins

1 Scope

This chapter in GB/T 4706.1-2024 is replaced by the following.

This document specifies the safety requirements for sauna heating appliances and infrared emitting units for household and similar purposes.

This document applies to single-phase appliances with rated input power not exceeding 20kW and rated voltage not exceeding 250V, and other appliances with rated voltage not exceeding Sauna appliances exceeding 480 V intended for home use or public sauna appliances used in apartments, hotels and similar places.

NOTE 101.Sauna heating appliances may be of the heat storage type.

This document also applies to sauna heating appliances with a humidifying unit, which humidifies the indoor air by evaporating or atomizing water.

NOTE 102.A humidifier may be part of a sauna heating appliance or installed in a sauna heater. A sauna heating appliance or sauna heater may or may not have a humidifier.

Operate with humidifier.

As far as is practical, the common hazards presented by the various appliances covered by this document are those that are present in the home and its surroundings.

In general, this document does not 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, Inability to use the equipment safely without supervision or instruction;

--- Condition of children's play equipment.

Note 103.Pay attention to the following.

--- For equipment intended for use in vehicles, ships or aircraft, additional requirements may be required;

--- National authorities may impose additional requirements on equipment.

Note 104.This document does not apply to.

--- Appliances intended for use in special environments where corrosive or explosive gases (such as dust, steam or methane) are often produced;

--- Appliances intended to induce sweating only in one part of the body;

--- A diaphoretic device in which the user's head is kept outside the heating zone;

---Tents and other foldable saunas;

---Room heaters (GB/T 4706.23);

--- Humidifiers intended for use in heating, ventilation or air conditioning systems (GB/T 4706.105);

---Humidifier (GB/T 4706.48);

--- Medical electrical equipment (GB 9706.1).

2 Normative references

Except for the following contents, this chapter of GB/T 4706.1-2024 applies.

ISO 3864-1 Graphical symbols, safety colours and safety signs Part 1: Safety signs in workplaces and public areas (Graphicalsymbols-Safetycoloursandsafetysigns-Part 1: Designprinciplesforsafetysignsand safety markings Note. GB/T 2893.1-2013 Graphical symbols, safety colors and safety signs Part 1: Design principles for safety signs and safety markings (ISO 3864-1:2011,MOD).