GB29741-2025

Safety specification for aluminum electrolysis

铝电解安全生产规范

GB 29741-2025 est une norme nationale chinoise obligatoire en vigueur : Safety specification for aluminum electrolysis. Secteur : Alimentation. Thème principal : Sécurité des produits. Entrée en vigueur : 1 févr. 2026.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

This standard applies to the safety management of aluminum electrolysis enterprises, covering plant design, electrolytic cell relining, anode assembly, ingot casting, flue gas purification, and transportation. It is mandatory for facilities involved in the primary aluminum production process using the cryolite-alumina molten salt electrolysis method. It does not apply to standalone environmental hygiene or risk assessment methodologies, which were removed from the previous version.

Exigences techniques

The standard outlines comprehensive safety requirements for aluminum electrolysis production, starting with general provisions for the "three simultaneities" of safety facilities and the establishment of a dual prevention mechanism for risk management. It specifies criteria for site selection and plant layout, including flood prevention, fire separation distances, and structural design compliance with relevant building codes such as GB 50016. Core production safety requirements are detailed for various processes, including material handling, aluminum electrolysis operations (such as anode changing, busbar transfer, and tapping), and electrolytic cell relining. It mandates specific safety measures for anode assembly and ingot casting, emphasizing the prevention of molten metal leaks and explosions. Manufacturers must ensure all operations strictly adhere to these mandatory safety protocols to prevent catastrophic failures. The standard also covers safety protocols for auxiliary systems such as flue gas purification, desulfurization, and internal transportation. It sets strict requirements for power systems, including compressed air, natural gas supply, water supply, and rectification units, ensuring continuous and safe energy delivery. Special attention is given to the safe handling of high-temperature molten metal during transport and lifting operations.

Méthodes d’essai

Compliance is verified through a combination of document review and on-site inspection. The standard requires the archiving of project construction documents, technical files, and completion drawings. Verification methods include reviewing safety management records, equipment maintenance logs, and hazard operation approvals. On-site inspections are conducted to verify plant layout, safety signage, and the operational status of equipment, ensuring that all safety protection devices and operational procedures meet the specified criteria.

Questions fréquentes

What products or facilities are regulated under GB 29741-2025?

It regulates aluminum electrolysis enterprises, specifically targeting the primary aluminum production process, including cell relining, anode assembly, and ingot casting.

Are there significant updates from the previous GB 29741-2013 version?

Yes, the 2025 version adds safety requirements for electrolytic cell relining, anode assembly, and flue gas desulfurization. It also removes sections on environmental hygiene and risk assessment.

Does GB 29741-2025 reference international standards?

The standard primarily references Chinese national standards (GB) for structural loads, fire protection, and electrical safety, rather than directly adopting ISO standards.

The summary above provides a high-level overview of GB 29741-2025. 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 29741-2025 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Sécurité
CCS: H09
ICS: 13.100
Autorité compétente: Ministry of Emergency Management
Comité technique: National Technical Committee on Work Safety of Standardization Administration of China

Relations

Remplace:GB 29741-2013