GB/T 4706.91-2024Safety of household and similar electrical appliances - Part 91: Particular requirements for electric fence energizers (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 91 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 4706.91-2008 "Particular requirements for safety electric fence actuators for household and similar electrical appliances" and Compared with GB 4706.91-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

--- Added "Security Electric Fence Exciter", "Independent Timing Security Exciter", "Non-Independent Timing Security Exciter", and "Security Exciter Group" "R-type exciter", "R-type exciter group", "S-type exciter", "S-type exciter group", "security exciter pulse time signal", "pulse "Impulse timing signal source" "Security electric exciter system" terms and definitions (see 3.5.109, 3.5.110, 3.5.111, 3.5.112, 3.5.113, 3.5.114, 3.5.115, 3.5.116, 3.6.102, 3.6.103, 3.8.112);

--- Changed the definition of rated current (see 3.1.6, 3.1.6 of the 2008 edition);

--- Changed the description of the actuator marking symbols (see 7.1, 7.1 of the 2008 edition);

--- Changed the symbol of the actuator (see 7.6, 7.6 of the 2008 edition);

--- Added the instruction manual information of security actuator (see 7.104);

--- Changed the additional test method for transient overvoltage of Class D exciter (see 14.103, 14.103 of the 2008 edition);

--- Added technical requirements for power supply voltage setting and testing (see Table 102, Table 103 and Table 104);

--- Changed the limit of pulse repetition frequency (see 19.13, 19.13 of the 2008 edition);

--- Added the description of simulated failure modes and pulse time signal source failures for abnormal operation (see 19.106, 19.107);

--- Added R-type security exciter test group configuration (see Figure 104) and S-type security electric exciter test group configuration (see Figure 105);

--- Added requirements for actuator output components (see 22.12);

--- Changed the scope of the clause (see 22.31 and 22.32, 2008 edition of 22.31 and 22.32);

--- Added additional measures required when using programmable protection electronic circuits (see 22.46);

--- Added requirements for removable power supply devices for Class D exciters (see 22.56);

--- Added structural requirements for parts clearance, standard load pulse energy, output characteristics, etc. (see 22.112~22.115);

--- Deleted the requirements for the connection method of the battery-driven exciter cord (see 25.5 of the 2008 edition);

--- Changed the schematic diagram of the actuator (see Figures 101 and 102, Figure 101 of the 2008 edition);

--- Added R-type security exciter test group configuration (see Figure 104) and S-type security electric exciter test group configuration (see Figure 105);

--- Added appliances powered by non-rechargeable or rechargeable batteries not in the equipment (see Appendix S);

--- Changed the relevant terms for the security electric fence requirements in the non-security exciter group (see Appendix BB in BB.2, 2008 edition Appendix BB of BB.2);

--- Changed the requirements for security electric fences in security actuator groups (see BB.3, BB.2 of the 2008 edition).

This document is equivalent to IEC 60335-2-76:2018 "Safety of Household and Similar Electrical Appliances Part 2-76.Electric Fence Actuators" Special Requirements for 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 91: Particular Requirements for Electric Fence Exciters", and the standard was strengthened.

Coordination of the quasi-system.

Introduction

GB/T 4706 "Safety of Household and Similar Electrical Appliances" mostly adopts 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 for use.

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 the corresponding clauses in GB/T 4706.1-2024 are applicable to this document; the part marked "replaces" in this document indicates that the corresponding clauses in GB/T 4706.1-2024 are applicable to this document.

For the parts marked as "added" in this document, in addition to complying with the provisions in GB/T 4706.1-2024, in addition to the corresponding clauses, the clauses added in the clauses of this document must also be complied with; the part of this document marked "modified" means that in GB/T 4706.1-the relevant provisions of 2024 will be modified.

Safety of household and similar electrical appliances Part 91: Particular requirements for electric fence actuators

1 Scope

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

This document specifies the safety requirements for electric fence actuators.

This document is applicable to fences with a rated voltage not exceeding 250V, which are used for the protection of fences in agricultural, domestic or wildlife control fences and security fences.

An electric fence activator that energizes or monitors the wire.

NOTE 101 Examples of electric fence actuators within the scope of this document are.

---Grid drive exciter;

--- As shown in Figures 101 and 102, a battery-driven exciter that can be connected to a mains power supply;

---Electric fence actuator driven by internal or external non-rechargeable batteries.

This document does not generally consider the following.

--- Dangers when unattended children and disabled people use the appliance;

--- Condition of children's play equipment.

Note 102.Attention should be paid to the following situations.

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

--- National management departments may impose additional requirements on equipment.

Note 103.This document does not apply to.

--- Animal training collars using electromagnetic coupling;

--- Apparatus intended for use in special environments where there are often corrosive or explosive gases (e.g. dust, steam or methane);

--- Separate battery charger (GB/T 4706.18);

---Electric fishing device (GB/T 4706.103);

---Equipment for electric shock of animals (GB/T 4706.97);

--- Appliances for medical purposes [IEC 60601 (all parts)].

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) ISO 3864-1 Graphical symbols - Safety colours and safety signs - Part 1: Design principles for safety signs and safety markings 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) Note. GB/T 17465.6-2022 Appliance couplers for household and similar purposes Part 3: Standard loose-leaf and gauges (IEC 60320-3:2018, MOD)