GB/T 3883.309-2021Safety of motor-operated hand-held, transportable and garden tools - Part 309: Particular requirements for transportable mitre saws (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 of Standardization Documents"

Drafting.

This document is part 309 of GB/T 3883 "Safety of Handheld and Portable Electric Tools and Garden Tools". "Handheld, removable

Movable power tools are currently composed of the following 5 parts in Part 3 of "Safety of Portable Power Tools and Garden Tools".

---GB/T 3883.306-2017 The safety of hand-held and portable electric tools and garden tools-Part 3.Removable liquid

Special requirements for source diamond drills;

---GB/T 3883.311-2019 Hand-held, portable electric tools and garden tools safety part 311.portable type

Special requirements for wood cutting machines;

---GB/T 3883.302-2021 Hand-held, portable electric tools and garden tools safety part 302.portable table

Special requirements for saws;

---GB/T 3883.305-2021 Hand-held, portable electric tools and garden tools safety part 305.portable table

Special requirements for type grinders;

Special requirements for cutting saws.

This document replaces GB/T 13960.9-1997 "Safety Part II of Portable Electric Tools. Particular Requirements for Miter Cutting Machines", and

Compared with GB/T 13960.9-1997, the main technical changes are.

1) Scope. Added and clarified the requirements of various accessories and their parameters of the portable miter saw (see Chapter 1, Chapter 1 of the.1997 edition);

2) Terms and definitions. increase inclination angle, compound angle, sawing edge area, D, grid, center workpiece support, fully depressed position, horizontal

Sawing capacity, saw gap, sawing board, miter angle, (saw blade) quadrant, rest position, sawing device, table top, rotary table, vertical sawing energy

The definition of force, modify the definition of miter saw, delete the definition of normal load (see Chapter 3, Chapter 2 of the.1997 edition);

3) General requirements. Add descriptions about saw blades and D (see Chapter 4);

4) Test general conditions. increase the quality of the tool, including the description of the scope, the program of the horizontal sawing ability (see Chapter 5,.1997 edition

Chapter 4);

5) Marks and instructions. increase the requirements for the marking range of the saw blade diameter and the marking requirements on the table on both sides of the saw blade; modify the instructions

Safety warnings, putting into use, operating instructions, maintenance and after-sales service instructions (see Chapter 8, Chapter 7 of the.1997 edition);

6) Abnormal operation. Modify Table 4 of Part 1 (see Chapter 18, Chapter 17 of the.1997 edition);

7) Mechanical hazard. add 19.3, 19.7.101, and 19.7.102 tests; modify the requirements of the saw blade guard; increase the rebound device, running and stopping time

Requirements; other requirements such as saw table, saw table baffle, flange, dust collection port structure, etc. are moved to Chapter 20 and revised (see Chapter 19,.1997

Chapter 18 of the Annual Edition);

8) Mechanical strength. increase the requirements of shield material/thickness, handling device, workbench, etc. (see Chapter 20, Chapter 19 of the.1997 edition);

9) Structure. Increase the requirements for the switch, the structure is convenient for the installation of the sawing tool, the workbench is against the grid, the clamping device, etc. (see section

Chapter 21, Chapter 20 of the.1997 edition);

10) Add Appendix I (informative) noise and vibration measurement;

11) Add appendix K (normative) battery-type tools and battery packs, appendix L (normative) to provide power connection or non-isolated source battery

Tools and battery packs.

The translation method used in this document is equivalent to the IEC 62841-3-9.2014 "Electric Motor Driven Handheld and Portable Electric Tools and Garden Machines"

Safety Part 3-9.Particular Requirements for Portable Miter Saws".

This document has made the following editorial changes.

---The name of the standard was revised to "Safety of hand-held, portable power tools and garden tools. Part 309.Portable miter saws

Specific requirements";

---Included IEC 62841-3-9.2014/COR1.2015 and IEC 62841-3-9.2014/COR2.2016 technical errata content,

Respectively, delete the "prevention of self-reset required by 23.3" and the corresponding level in the original table 4, and modify the 8.3 Zhongyuan 0.975D to

0.96D. The position of the outer margin of the terms involved is marked with a vertical double line (||).

This document shall be in accordance with GB/T 3883.1-2014 "Safety of Handheld and Portable Electric Tools and Garden Tools Part 1.General Requirements"

Seek to be used together.

The "applicable" part of this document indicates that the corresponding provisions in GB/T 3883.1-2014 are applicable; this document specifies the "replacement" part,

The provisions in this document shall prevail; the part in this document that states "modification" indicates the relevant provisions of GB/T 3883.1-2014

The content should be based on the revised content of this document, and the other content in this clause still applies;

In addition to complying with the corresponding provisions of GB/T 3883.1-2014, it should also comply with the additional provisions of this document.

This document was proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Electric Tool Standardization Technical Committee (SAC/TC68).

Drafting organizations of this document. Jiangsu SUMEC Hardware Tools Co., Ltd., Shanghai Power Tools Research Institute (Group) Co., Ltd., Zhengyang Technology

Co., Ltd., Baoshide Technology (China) Co., Ltd., Nanjing Deshuo Industrial Co., Ltd., and Ruiqi Holding Co., Ltd.

Introduction

In.2014, my country issued the national standard GB/T 3883.1-2014 ``Safety No. of Handheld and Portable Power Tools and Garden Tools''

Part 1.General Requirements, the original GB/T 3883 (part of hand-held power tools), GB/T 13960 (part of portable power tools) and

The common technical requirements of the general safety standards for the three major series of electric tools in GB/T 4706 (only for garden power tools) have been integrated.

There are 3 parts in the special requirements for specific types of small products that are used in conjunction with GB/T 3883.1-2014.

Portable power tools part), part 3 (portable power tools part), and part 4 (garden power tools part), all transform the corresponding country

The specific requirements of the international standard IEC 62841 series.

The main element of the standard name is expanded to "safety of hand-held, portable power tools and garden tools", and the original hand-held power tools are used

Part of the standard number GB/T 3883.The standard sub-part number of each sub-category product consists of three digits, of which the first digit

Indicates the corresponding part, the 2nd and 3rd digits indicate different subcategories.

The new version of the GB/T 3883 series of standards will form a more scientific, complete, universal, and unified series of safety standards for electric tool products

The system makes the implementation of the standard more practical and convenient to use.

At present, the new version of GB/T 3883 series standard "portable electric tools part" has published standards as follows.

---GB/T 3883.302-2021 Hand-held, portable electric tools and garden tools safety part 302.portable table

Special requirements for saws;

---GB/T 3883.305-2021 Hand-held, portable electric tools and garden tools safety part 305.portable table

Special requirements for type grinders;

---GB/T 3883.306-2017 The safety of hand-held and portable electric tools and garden tools-Part 3.Removable liquid

Special requirements for source diamond drills;

Special requirements for cutting saws;

---GB/T 3883.311-2019 Hand-held, portable electric tools and garden tools safety part 311.portable type

Special requirements for wood cutting machines.

The following standards will be revised in the future.

---GB/T 13960.3-1996 Special requirements for safe rocker saws for portable power tools;

---GB/T 13960.4-2009 Safety of portable electric tools Part 2.Special requirements for planing and thickness planing;

---GB/T 13960.6-1996 Special requirements for safety band saws for portable power tools;

---GB/T 13960.8-1997 Safety of portable power tools Part 2.Special requirements for diamond saws with water source;

---GB/T 13960.10-2009 Safety of portable electric tools Part 2.Special requirements for single-axis vertical wood milling;

---GB/T 13960.13-2005 The second part of the safety of portable electric tools. the special requirements for the oblique cutting bench combination saw.

Safety of hand-held and portable electric tools and garden tools

Part 309.Particular requirements for portable miter saws

1 Scope

In addition to the following provisions, this chapter of GB/T 3883.1-2014 applies.

increase.

This document applies to the following portable miter saws.

A toothed saw blade is installed for sawing wood and similar materials, such as plastics, non-ferrous metals (except magnesium), and the diameter of the saw blade does not exceed

360mm. Hereinafter, it may be referred to simply as a saw or a tool.

This document does not apply to miter saws used to cut other metals, such as magnesium, steel or pig iron. This document also does not apply to

Installed miter saw.

Note 101.Movable saws for cutting ferrous metals are regulated by a future part of IEC 62841-3.

This document does not apply to saws using abrasive discs.

Note 102.The movable tool using the grinding wheel is specified by GB/T 3883.311.

This document does not apply to portable tools with a combination of table saw and bevel functions.

Note 103.A portable tool with a combination of table saw function and bevel function is specified by IEC 62841-3-11.

2 Normative references

In addition to the following provisions, this chapter of GB/T 3883.1-2014 applies.

increase.

ISO 180 Plastics-Determinationofizodimpactstrength (Plastics-Determinationofizodimpactstrength)

3 Terms and definitions

In addition to the following provisions, this chapter of GB/T 3883.1-2014 applies.

increase.

3.101

Bevelangle

The angle at which the plane of the saw blade is inclined to the table surface. The position of the saw blade plane perpendicular to the work surface is regarded as the 0° inclination angle position.

3.102

Compound angle

The angle when the saw blade plane is at a position where the inclination angle and the bevel angle are not 0°.

3.103

Cuttingedgezone

The radius of the saw blade is close to 20% of the outer edge.