2026年5月，中国工程建设标准化协会正式发布 T/CECS 31—2026《钢制电缆桥架工程技术规程》 ，并将于2026年11月1日起实施。这是继2017版之后该规程的又一次重要修订，标志着钢制电缆桥架工程在设计、施工和验收环节将迎来新的技术规范。对于从事建筑电气设计、施工和验收的工程人员而言，理解新规的核心变化至关重要。

In May 2026, the China Engineering Construction Standardization Association officially released T/CECS 31-2026 "Technical Regulations for Steel Cable Tray Engineering", which will be implemented from November 1, 2026. This is another important revision of the regulation after the 2017 version, marking a new technical specification for the design, construction, and acceptance of steel cable tray engineering. For engineering personnel engaged in building electrical design, construction, and acceptance, understanding the core changes of the new regulations is crucial.

从规程的适用范围来看，新版明确适用于工业与民用建筑中钢制电缆桥架的制作、工程设计、安装及验收，但非常注明“不适用于钢制耐火电缆桥架工程”。这一界定厘清了规程的边界，避免与耐火桥架的专项标准产生交叉。在技术内容方面，新规程涵盖总则、术语、电缆桥架、工程设计、安装及验收等主要章节，形成了从产品到工程落地的完整技术链条。

From the scope of application of the regulations, the new version clearly applies to the production, engineering design, installation, and acceptance of steel cable trays in industrial and civil buildings, but specifically states that it is not applicable to steel fire-resistant cable tray projects. This definition clarifies the boundaries of the regulations and avoids crossing with the specialized standards for fire-resistant bridge structures. In terms of technical content, the new regulations cover major chapters such as general principles, terminology, cable trays, engineering design, installation, and acceptance, forming a complete technical chain from product to project implementation.

值得关注的是，新规程的起草单位阵容强大，包括中船第九设计研究院工程有限公司、中国电力科学研究院有限公司等权威机构。这意味着规程在技术指标的设定上充分结合了设计院、研究院和制造企业的多方经验，具有较强的工程实践指导价值。对于施工单位而言，新规实施后需要对照更新施工方案和验收标准，确保桥架安装质量符合非常新要求。

It is worth noting that the drafting units of the new regulations have a strong lineup, including authoritative institutions such as China Shipbuilding Ninth Design and Research Institute Engineering Co., Ltd. and China Electric Power Research Institute Co., Ltd. This means that the regulations fully integrate the experience of design institutes, research institutes, and manufacturing enterprises in setting technical indicators, and have strong engineering practice guidance value. For construction units, after the implementation of the new regulations, it is necessary to compare and update the construction plan and acceptance standards to ensure that the quality of bridge installation meets the latest requirements.

在配套标准方面，国标图集 22D701-3《电缆桥架安装》 为施工人员提供了详尽的安装参考。该图集涵盖电缆桥架沿墙、柱、梁等位置的水平安装，桥架在楼板下的水平吊装，以及沿墙、楼板垂直安装等多种方式，并新增了网格式电缆桥架安装、电缆槽盒过伸缩缝安装等内容。施工人员可结合新规程和图集，规范现场作业流程。

In terms of supporting standards, the national standard atlas 22D701-3 "Cable Tray Installation" provides detailed installation references for construction personnel. This atlas covers various methods such as horizontal installation of cable trays along walls, columns, beams, etc., horizontal lifting of trays under floor slabs, and vertical installation along walls and floors. It also adds content such as installation of grid format cable trays and installation of cable tray boxes through expansion joints. Construction personnel can standardize the on-site operation process by combining new regulations and drawings.

从行业发展趋势来看，电缆桥架市场正保持稳健增长。据研究机构预测，2026年全球电缆桥架系统市场销售额预计达到51亿美元，2026至2032年复合增长率约6.3%。在技术层面，向无工具拼接架构的迁移和玻璃纤维增强聚合物的应用成为两大趋势。新规的实施将为这些新技术、新材料的工程应用提供规范支撑，推动行业向更出色、更耐用的方向发展。

From the perspective of industry development trends, the cable tray market is maintaining steady growth. According to research institutions' predictions, the global cable tray system market sales are expected to reach $5.1 billion by 2026, with a compound annual growth rate of approximately 6.3% from 2026 to 2032. At the technical level, the migration to toolless splicing architectures and the application of glass fiber reinforced polymers have become two major trends. The implementation of the new regulations will provide normative support for the engineering application of these new technologies and materials, and promote the development of the industry towards greater efficiency and durability.

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