GB/T 4706.68-2024Safety of household and similar electrical appliances - Part 68: Particular requirements for drives for vertically moving garage doors for residential use (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 68 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 4706.68-2008 "Safety of household and similar electrical appliances - Drives for vertically moving garage doors in residential buildings" Compared with GB 4706.68-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

--- Change some "notes" to the main text (see 11.7, 20.2, 20.101, 11.7, 20.2, 20.101 of the 2008 edition);

--- Increased the need for anti-pinch protection devices (see 22.109);

--- Changed the test compliance criteria of 19.11.2 and 19.11.3 (see 19.13, 19.13 of the 2008 edition);

--- Changed the tests for class III appliances and class III structural components (see 25.8, 25.15, 25.8, 25.15 of the 2008 edition).

This document is equivalent to IEC 60335-2-95:2019 "Safety of Household and Similar Electrical Appliances Part 2-95.Residential Vertical Transport Equipment" Special requirements for the drive devices of automatic garage doors.

The following minimal editorial changes were made to this document.

--- The name of the standard was changed to "Safety of Household and Similar Electrical Appliances Part 68: Drives for Vertical Motion Garage Doors for Residential Use" Special Requirements for Standardization" 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 68: Vertical movement garage doors for residential use Special requirements for drives

1 Scope

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

This document specifies the safety requirements for electric drives for vertically opening and closing garage doors for residential use.

This document applies to residential vertical opening and closing devices with a rated voltage not exceeding 250 V for single-phase appliances and not exceeding 480 V for other appliances.

The drive device for closing the garage door.

This document also contains information on the dangers associated with the movement of powered garage doors.

NOTE 101.An example of a garage door is shown in Figure 101.

NOTE 102.The drive unit may be supplied with the garage door.

NOTE 103 This document also applies to anti-pinch protection devices used in conjunction with drive devices. This document does not cover hazards associated with the mechanical structure of the door itself.

As far as practicable, this document deals with common hazards arising from appliances which are encountered by all persons in and around the home.

The situation where children play with utensils is not taken into account, but the situation where children may approach the garage door is taken into account.

NOTE 104.Note that in the following cases, the relevant national management authorities may impose additional requirements on the equipment.

Note 105.This document does not apply to.

--- Drives for blinds, awnings, curtains and similar equipment (GB/T 4706.101);

--- Drive devices for gates, doors and windows (GB/T 4706.98);

--- Drive devices for commercial and industrial use;

---Drives intended for use in special locations where corrosive or explosive gases (e.g. dust, steam or methane) are often present device.

2 Normative references

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

Increase.

GB/T 2423.18-2021 Environmental testing Part 2: Test methods Test Kb. Salt spray, alternating (sodium chloride solution) (IEC 60068-2-52:2017, IDT) IEC 60245 (all parts) Rubber insulated cables of rated voltage 450/750V and below Ratedvoltagesuptoandincluding450/750V) Note. GB/T 5013 (all parts) Rubber insulated cables with rated voltage of 450/750V and below [IEC 60245 (all parts)]

3 Terms and definitions

Except for the following contents, this chapter of GB/T 4607.1-2024 applies.