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GB/T 20888.2-2020: Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 2: Machines for use with back-pack power source
Status: Valid GB/T 20888.2: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20888.2-2020 | English | 184 |
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Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 2: Machines for use with back-pack power source
| Valid |
GB/T 20888.2-2020
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| GB 20888.2-2013 | English | 319 |
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Machinery for forestry -- Safety requirements and testing for pole-mounted powered pruners -- Part 2: Machines for use with back-pack power source
| Obsolete |
GB 20888.2-2013
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| GB 20888.2-2006 | English | 679 |
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Machinery for forestry Pole-mounted pruners with a back-pack power source Safety requirements and testing
| Obsolete |
GB 20888.2-2006
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PDF similar to GB/T 20888.2-2020
Basic data | Standard ID | GB/T 20888.2-2020 (GB/T20888.2-2020) | | Description (Translated English) | Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 2: Machines for use with back-pack power source | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B95 | | Classification of International Standard | 65.060.80 | | Word Count Estimation | 10,189 | | Date of Issue | 2020-04-28 | | Date of Implementation | 2020-04-28 | | Older Standard (superseded by this standard) | GB 20888.2-2013 | | Quoted Standard | GB/T 20888.1-2020; GB/T 23821-2009; ISO 4413; ISO 4414; ISO 12100-2010 | | Adopted Standard | ISO 11680-2-2011, IDT | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the safety requirements for the design and structure of a rod-type knapsack-type power pruning saw (hereinafter referred to as "knapsack-type pruning saw") with a knapsack power device and the power source transmits power to the cutting part through a drive shaft. experiment method. Cutting parts in this standard refer to saw chains and saw blades that perform reciprocating or rotating motions. This standard specifies methods for eliminating or reducing various hazards arising from the use of knapsack pruning saws, and specifies the information requirements provided by the manufacturer regarding safe operation. This standard and the relevant chapters of Part 1 of GB/T 20888 deal with all serious hazards associated with knapsack pruning saws during normal use and reasonable and foreseeable misuse, but do not involve contact with overhead cables. Electric shock hazard (makes | GB/T 20888.2-2020: Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 2: Machines for use with back-pack power source
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Machinery for forestry--Safety requirements and testing for pole-mounted powered pruners--Part 2. Machines for use with back-pack power source
ICS 65.060.80
B95
National Standards of People's Republic of China
Replace GB 20888.2-2013
Safety requirements and tests of forestry machinery rod power pruning saw
Part 2. Piggyback power pruning saw
(ISO 11680-2..2011, IDT)
2020-04-28 release
2020-04-28 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Contents
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Safety requirements and/or protective measures 2
4.1 General 2
4.2 Handle 3
4.3 Strap 3
4.4 Hydraulic and pneumatic pipes and hoses 3
5 Usage Information 3
Appendix A (Informative Appendix) List of Serious Hazards 5
Foreword
GB/T 20888 "Safety Requirements and Tests of Forestry Machinery Pole Power Pruning Saws" is divided into two parts.
--- Part 1. Side-mounted power pruning saw;
--- Part 2. Piggyback power pruning saw.
This part is part 2 of GB/T 20888.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part replaces GB 20888.2-2013 "Safety Requirements and Tests for Forestry Machinery Pole Power Pruning Saws Part 2. Piggyback
"Power pruning saw", compared with GB 20888.2-2013, the main technical content has not changed.
The translation method used in this section is equivalent to the use of ISO 11680-2..2011 "Safety Requirements and Tests for Forestry Machinery Pole Power Pruning Saws, Part 2"
Part. Piggyback Power Pruning Saw. "
The documents in China that have a consistent correspondence with the normatively cited international documents in this section are as follows.
--- GB/T 3766-2015 General rules and safety requirements for hydraulic transmission systems and their components (ISO 4413..2010,
MOD)
--- GB/T 7932-2017 General rules and safety requirements for pneumatic systems and components (ISO 4414..2010, IDT)
--- GB/T 15706-2012 General principles of machinery safety design risk assessment and risk reduction (ISO 12100..2010, IDT)
Please note that some content of this document may involve patents. The issuer of this document does not assume responsibility for identifying these patents.
This part is proposed by the State Forestry and Grassland Bureau.
This part is under the jurisdiction of the National Forestry Machinery Standardization Technical Committee (SAC/TC61).
This section was drafted. Zhejiang Sapas Tool Manufacturing Co., Ltd., Jiangsu Linhai Power Machinery Group Co., Ltd., Ningbo Daye Garden
Equipment Co., Ltd., Zhejiang Yate Electric Co., Ltd., Zhejiang Pineier Technology Co., Ltd., Zhejiang Sanfeng Industrial Co., Ltd.
Division, Shandong Yongjia Power Co., Ltd.
The main drafters of this section. Lv Jiangfeng, Zhang Rongshan, Lan Yanglin, Ding Junfeng, Zhu Daoqing, Yang Feng, Liu Guiyang.
The previous versions of the standard replaced by this part are as follows.
--- GB 20888.2-2006, GB 20888.2-2013.
Safety requirements and tests of forestry machinery rod power pruning saw
Part 2. Piggyback power pruning saw
1 Scope
This part of GB/T 20888 specifies the rod type with a piggyback power device and the power source transmits power to the cutting component via the transmission shaft
The safety requirements and test methods of the design and structure of the knapsack power pruning saw (hereinafter referred to as "knapsack pruning saw"). In this section
The cutting part refers to the saw chain and the saw blade doing reciprocating motion or rotating motion. This section proposes to eliminate or reduce the use of piggyback saws
The methods of various hazards stipulated by the manufacturer stipulate the information requirements on safe operation provided by the manufacturer.
This section and the relevant chapters of Part 1 of GB/T 20888 refer to the relevant
Reasonable and predictable all serious hazards when misused, but does not involve electric shock hazards caused by contact with overhead cables (contains in the instruction manual
Except for warnings and recommendations) and the whole-body vibration hazard caused by the backpack-type power unit.
Note 1. At present, there is no standard test procedure for measuring the whole body vibration caused by the piggyback power plant.
Note 2. See Appendix A for a list of serious hazards.
This section applies to products produced after its implementation.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 20888.1-2020 Safety requirements and tests for forestry machinery rod-type power pruning saws Part 1. Side-mounted power pruning
Saw (ISO 11680-1..2011, IDT)
GB/T 23821-2009 Safety of machinery to prevent the upper and lower limbs from reaching the safe distance of the hazardous area (ISO 13857..2008, IDT)
ISO 4413 General rules and safety requirements for hydraulic drive systems and their components (Hydraulicfluidpower-General
rulesandsafetyrequirementsforsystemsandtheircomponents)
ISO 4414 General rules and safety requirements for pneumatic drive systems and their components (Pneumaticfluidpower-General
rulesandsafetyrequirementsforsystemsandtheircomponents)
ISO 12100..2010 General principles of machinery safety design risk assessment and risk reduction (Safetyofmachinery-General
principlesfordesign-Riskassessmentandriskreduction)
3 Terms and definitions
The terms and definitions defined in GB/T 20888.1-2020 and ISO 12100 and the following apply to this document.
3.1
Appliance
Installed with drive shaft sleeve, cutting accessories, sprocket guard and handle device.
3.2
Machine
A pole-type power pruning saw including a power source and appliances, a machine for cutting branches on tree trunks.
Note. An example is shown in Figure 1.
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