GB11341-2008

Safety rules for overhead chain conveyers

悬挂输送机安全规程

GB 11341-2008 は現行の中国強制国家規格です：Safety rules for overhead chain conveyers。業界：機械。テーマ：製品安全。施行日：2009年10月1日。

適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。

コンプライアンス概要

この概要は現在英語のみで提供しています。

適用範囲

This standard applies to the design, manufacturing, installation, operation, and maintenance of overhead chain conveyors. It specifically covers general overhead chain conveyors, power and free overhead conveyors, and ground chain conveyors. Engineers working with monorail overhead trolley conveyors may also refer to this standard for safety guidance. It is essential for industrial material handling systems.

技術要求

This standard specifies comprehensive safety and technical requirements for conveyor systems. It mandates that components and structural supports must meet strict criteria for strength, stiffness, and stability. The standard outlines specific safety factors for critical components; for instance, traction chains and load-bearing trolleys must adhere to defined minimum safety factors based on their application. Designers must ensure that all mechanical and structural elements prevent any hazard to personnel, equipment, or the environment during operation. The standard details critical safety device requirements. Overload protection must be installed on drive units to cut off motor power when tension exceeds permissible limits. Additionally, safety catchers must be installed on inclines to prevent chain rollback in the event of a breakage, automatically disconnecting the power supply. Emergency stop switches must be strategically placed along the conveyor line and at all operating positions to allow for rapid, safe shutdowns. Operational safety requirements include strict guidelines for pedestrian and operator areas. Clearance heights for walkways under equipment must be maintained, and protective nets or guards are required where conveyors pass over workstations. The standard also sets specific noise limits, requiring that noise levels at a distance of 1 meter from the equipment do not exceed 80dB(A) under rated load and speed. Electrical installations must comply with referenced standards such as GB 50256 to ensure comprehensive safety.

試験方法

Compliance verification involves visual inspections and functional testing of safety devices, including emergency stop switches and overload protection mechanisms. Structural integrity is evaluated through load testing to verify safety factors for tracks, chains, and lifting mechanisms. Acoustic measurements are conducted at a 1-meter distance from the equipment to ensure noise levels remain within the 80dB(A) limit. Furthermore, the standard includes a normative appendix detailing specific inspection contents and maintenance cycles for components like reduction gears, drive units, and tensioning devices.

よくある質問

What products are regulated under GB 11341-2008?

The standard applies to general overhead chain conveyors, power and free overhead conveyors, and ground chain conveyors. Monorail overhead trolley conveyors may refer to this standard for guidance.

Are there any updates from the previous version of GB 11341?

The 2008 version added a foreword, reorganized the chapter sequence, introduced a new "Terms and Definitions" section, and included a normative appendix detailing the inspection contents and maintenance cycles for various conveyor components.

Is compliance with GB 11341-2008 mandatory for foreign manufacturers?

Yes, the entire content of GB 11341-2008 is mandatory. It serves as a critical safety protocol rather than a voluntary guideline, and strict adherence is legally required for relevant manufacturing and operational facilities in China.

The summary above provides a high-level overview of GB 11341-2008. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 11341-2008 today to access all detailed parameters, tables, and testing procedures.

適用のヒント

種別: 安全
CCS: C68
所管部門: Ministry of Emergency Management
技術委員会: National Technical Committee on Work Safety of Standardization Administration of China