GB/T 4706.33-2024Safety of household and similar electrical appliances - Part 33: Particular requirements for commercial electric deep fat fryers (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 33 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 4706.33-2008 "Safety of household and similar electrical appliances - Particular requirements for commercial electric deep fat fryers" and Compared with GB 4706.33-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

--- Added the terms and definitions of "doughnut fryer", "functional surface" and "adjacent surface" (see 3.105 to 3.107);

--- Changed appliances with external accessible surfaces or covers should be marked with symbol 5041 as specified in IEC 60417, or with a high temperature warning Report content (see 7.1, 7.1 of the 2008 edition);

--- Added high temperature identification content (see 7.6);

--- Changed the instructions for the reduced scope of use of the appliance and the relevant warning requirements and the instructions for the movement of stationary appliances for cleaning (See 7.12, 7.12.1, 7.12, 7.12.1 of the 2008 edition);

--- Added the height requirements for the triangle used in symbol 5041 (2002-10) specified in IEC 60417 (see 7.14);

--- Changed the requirements for marking information on fixed appliances (see 7.15, 7.15 of the 2008 edition);

--- Changed the requirements for motor starting (see 9.101, 9.101 of the 2008 edition);

--- Added the requirements for thermocouple electromotive force specifications and tolerances (see 11.3);

--- Added the conditions for reaching a stable state and the content of the interaction between the appliance and other appliances (see 11.7);

--- Added the location for testing oil or grease temperature and the maximum temperature rise limit of the external accessible surface under normal working conditions (see 11.8, Table 101);

--- Increased the allowable value of leakage current for class I portable appliances (see 13.2, 16.2);

--- Added requirements for mechanical properties of carbon steel and alloy steel fasteners and corrosion-resistant stainless steel fasteners (see 28.1, 28.4);

--- Added the temperature limit of grease or oil measured according to method 11.3 during the test of 19.4 (see 19.13);

--- Changed the test that the inclination angle is increased to 15° for removable parts and non-fixed parts (see 20.1, 2008 edition) 20.1);

--- Added requirements for moving parts of appliances that do not apply to parts required to perform tilting operations (see 20.2);

---Changed the thermostat when the capillary tube of the thermostat is assembled as a part of the internal wiring and is bent under normal use Other capillary test methods (see 23.3, 23.3 of the 2008 edition);

--- Deleted the connection requirements for the wiring terminals used for permanent connection of cables and fixed wiring and a group of wiring terminals equipped with connectable flexible wires Requirements, and the contents that the instructions should provide (see 25.3 of the 2008 edition);

--- Deleted 15.2 The structure of the appliance ensures that the electrical insulation is not affected when the liquid overflows (see 15.2 of the 2008 edition);

--- Added the compliance requirements for screws made of carbon steel, alloy steel and stainless steel (see 28.1, 28.4);

--- Added Figure 101 "Identification of temperature measurement surface" and Figure 102 "Probe for measuring surface temperature" (see Figures 101 and 102).

This document is equivalent to IEC 60335-2-37:2017 "Safety of Household and Similar Electrical Appliances Part 2-37.Commercial Electric Donuts Particular requirements for deep fryers and fryers.

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 33: Particular Requirements for Commercial Electric Fryers", and the standard was strengthened.

Bare system coordination;

--- Figure 101 is changed to Figure 103;

---Correct "IEC 60584-1" in the reference number description B of Figure 102 of IEC 60335-2-37:2017 to "IEC 60584-1.

2013";

---Correct "6.3" in Appendix N of IEC 60335-2-37:2017 to "10.1".

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 33: Particular requirements for commercial electric deep fryers

1 Scope

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

This document covers commercial electric fryers and deep fryers not intended for household use with a pressure not exceeding 50 kPa and a pressure vessel volume not exceeding.200 L.

For single-phase appliances connected to a phase and neutral line, the rated voltage shall not exceed 250V, and other appliances shall not exceed Over 480V.

NOTE 101 Such appliances are suitable for use in commercial food processing, for example in restaurants, canteens, hospital kitchens and commercial enterprises such as bakeries and butchers.

The electrical parts of appliances using other forms of energy are also within the scope of this document.

As far as is practical, this document deals with the common hazards arising from this type of apparatus.

Note 102.Pay attention to the following.

--- For equipment intended for use on vehicles, ships or aircraft, necessary additional requirements are permitted;

--- The relevant national management departments may impose additional requirements on the equipment;

--- The relevant national management departments have stipulated additional requirements for pressure equipment.

Note 103.This document does not apply to.

---Appliances designed for industrial use;

--- Apparatus used in places with special conditions such as corrosive or explosive atmosphere (dust, steam or combustible gas);

---Apparatus for continuous mass production of food.

2 Normative references

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

Increase.

IEC 60584-1:2013 Thermocouples-Part 1: EMFspecifi-cationsandtolerances) Note. GB/T 16839.1-2018 Thermocouples Part 1: Electromotive force specifications and tolerances (IEC 60584-1:2013, IDT) ISO 898-1 Mechanical properties of carbon steel and alloy steel fasteners Part 1: Bolts, screws and studs with specified property classes Coarse and fine pitch threads (Mechanical properties of fasteners made of carbon steel and loy steel - Part 1: Bolts,screwsandstudswithspecifiedpropertyclasses-Coarsethreadandfinepitchthread) Note. GB/T 3098.1-2010 Mechanical properties of fasteners - Bolts, screws and studs (ISO 898-1:2009, MOD) ISO 3506-1 Mechanical properties of corrosion resistant stainless steel fasteners Part 1: Bolts, screws and studs propertiesofcorrosion-resistantstainlesssteelfasteners-Part 1: Bolts,screwsandstuds) Note. GB/T 3098.6-2014 Mechanical properties of fasteners Stainless steel bolts, screws and studs (ISO 3506-1:2009, MOD) ISO 3506-2 Mechanical properties of corrosion resistant stainless steel fasteners Part 2: Nuts (Mechanical properties of corro-sion-resistantstainlesssteelfasteners-Part 2: Nuts) Note. GB/T 3098.15-2014 Mechanical properties of fasteners Stainless steel nuts (ISO 3506-2:2009, MOD) ISO 3506-3 Mechanical properties of corrosion-resistant stainless steel fasteners Part 3: Set screws and similar fasteners not subjected to tensile stress Mechanicalpropertiesofcorrosion-resistantstainlesssteelfasteners-Part 3: Setscrewsand similarfastenersnotundertensilestress)