LY/T 2080-2025 in English

Standard Revision Background and Technological Evolution

LY/T 2080-2025, "Lawn Edge Trimmers," a key standard for the forestry industry, integrates and unifies the three standards: LY/T 2080-2012, LY/T 2401-2014, and LY/T 3168-2019. This revision fully considers the current state of garden machinery technology and systematically integrates the technical requirements for gasoline edge trimmers, lithium-ion battery edge trimmers, and AC edge trimmers, demonstrating the forward-looking and practical nature of the standard's development.

Scope of application and product classification

This standard applies to hand-push/handheld trimmers with rigid blades as cutting parts, which are divided into three categories according to the power type:

Analysis of Key Technical Requirements

Performance Requirements System

The standard establishes a complete performance requirement system, including general performance, special performance, and reliability requirements:

Idle Running Performance

Gasoline Trimmers are required to operate at the maximum no-load speed for 1 minute, then idle for 30 seconds, alternating between three cycles. Electric Trimmers are required to operate at no-load for 3 minutes, then stop for 30 seconds, and operate three cycles continuously. During the test, no abnormal noise should be heard from any component, and no fasteners should loosen.

Cutting Performance

When cutting into the lawn soil layer at the specified maximum cutting depth, the width of the cut must not exceed three times the blade thickness. For gasoline trimmers, the gasoline engine should not be shut down. For electric trimmers, if a stall occurs, the protection program should be activated without affecting subsequent normal operation.

Reliability requirements

In-depth analysis of safety technical requirements

General safety requirements

The standard sets clear requirements for hazardous area protection, transmission device strength, and protective device connection:

Noise control

Gasoline trimmers The noise level at the operator's ear must not exceed 105dB. Electric trimmers The measured noise level must be indicated in the instruction manual.

Handle vibration

Controlled by grade based on gasoline engine displacement: ≤15m/s² for displacement ≤35mL, ≤7.5m/s² for displacement >35mL.

Special Safety Requirements

Safety Features of Electric Trimmers

Power-on control must be performed by two separate, independent operating actions to prevent accidental activation. Protection Level Requirements: AC trimmers and lithium-ion trimmers operating at hazardous voltages must meet IPX4, while lithium-ion trimmers operating below hazardous voltages must meet IPX1.

Safety Features of Gasoline Trimmers

Exhaust emissions must comply with GB 26133, and the muffler should not exhaust toward the operator. High-temperature component protection must meet the requirements of GB 10395.15-2006.

Technical Requirements for Major Components

Blade Life Requirements

The blade life of a trimmer blade under normal operating conditions must be no less than 20 hours, and the blade must not break or fall off during its lifespan.

Handle Design Specifications

Handheld trimmers should have two handles. The shortest distance between the centers of the two handles should be no less than 250mm, and the grip length of all handles should be no less than 100mm. Safety distance requirement: The horizontal distance between the front end of the front handle and the rear end of the blade tip rotation circle must be at least 450mm.

Power System Requirements

Test Methods and Inspection Requirements

Measurement Accuracy Requirements

The standard sets strict requirements for the measurement accuracy of the test instruments, including dimensional accuracy of ±1mm, time accuracy of ±0.1s, and speed accuracy of ±0.5%, to ensure the accuracy and comparability of the test results.

Environmental Adaptability Test

Li-ion Battery Trimmer must be left at rest for 6 hours in both -5℃±2℃ and 40℃±2℃ environments, then restarted 10 times continuously to verify its environmental adaptability. AC trimmers must undergo a no-load start test at 0.85 times the rated voltage. AC trimmers must undergo a no-load start test at 0.85 times the rated voltage.

Standard Implementation Recommendations

Key Points for Manufacturers

Manufacturers should focus on requirements such as model compilation specifications, the completeness of basic parameter labeling, and the installation of safety signs. In particular, they should have a clear understanding of the differentiated requirements for the three power types of trimmers.

Precautions for Testing Agencies

Testing agencies should establish a comprehensive testing system, paying particular attention to the specific testing requirements for different power types of trimmers, such as emissions testing for gasoline trimmers and electromagnetic compatibility testing for electric trimmers.

User Instructions

Users should operate according to the instructions in the instruction manual, paying particular attention to the meaning of safety warning signs, regularly checking blade wear, and ensuring that the equipment is used in an environment that meets the standard requirements.