GB14249-2026

Safety requirements for electronic weighing instrument

电子衡器安全要求

GB 14249-2026 é uma norma nacional chinesa obrigatória que entrará em vigor: Safety requirements for electronic weighing instrument. Setor: Eletrônicos. Foco: Segurança de produtos. Entrada em vigor: 1 de ago. de 2027.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard specifies the safety requirements for electronic weighing instruments, including both non-automatic and automatic types. It applies to instruments using load cells and electronic indicators with electrical control boxes, utilizing Class I and Class II safety modes. This standard is mandatory for manufacturers of electronic scales entering the Chinese market. It does not apply to instruments used in explosive environments or high-temperature environments (≥70 ℃).

Requisitos técnicos

The standard outlines comprehensive safety protocols, focusing on protection against electric shock under normal and single fault conditions. It details requirements for basic insulation, protective bonding, and clearance/creepage distances, referencing GB 4793.1-2007 for general electrical safety. Manufacturers must ensure accessible parts do not become hazardously live. It also addresses mechanical hazards, requiring smooth edges and stability to prevent operator injury. The standard mandates flame propagation prevention by limiting ignition sources and controlling energy circuits. Additionally, it sets temperature limits to prevent burns and specifies material requirements for heat resistance. Furthermore, the standard includes requirements for electromagnetic compatibility (EMC), ensuring instruments do not produce significant errors when subjected to interference. It covers component safety, interlock protection devices, and comprehensive marking and documentation requirements. Proper labeling and user manuals are essential for compliance.

Métodos de ensaio

The standard details various testing methods, including dielectric strength tests, mechanical impact and drop tests, and single fault condition evaluations. It also references EMC performance tests as specified in corresponding product standards like GB/T 17626.2 and GB/T 17626.3.

Perguntas frequentes

What products are regulated under GB 14249-2026?

It regulates electronic weighing instruments, including non-automatic scales, automatic rail weighers, and belt scales, utilizing Class I or II electrical safety modes.

Are there any updates from the previous version of GB 14249?

Yes, this version replaces GB 14249.1-1993, adding requirements for flame propagation, EMC, and interlock protection, while removing explosive environment applications.

How does GB 14249-2026 handle electromagnetic interference?

It requires that instruments either do not show significant faults when subjected to EMI or detect and alarm such faults, referencing specific test methods from the GB/T 17626 series.

The summary above provides a high-level overview of GB 14249-2026. 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 14249-2026 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Segurança
CCS: N13
ICS: 17.100
Órgão competente: Ministry of Industry and Information Technology
Comitê técnico: National Technical Committee on Weighing Instruments of Standardization Administration of China

Relações

Substitui:GB 14249.1-1993 (Vigente)