IEC 61386-21:2021 Clause 10.4.102 and Figure 103 Bending Test Apparatus for Non-Metallic and Composite Conduits
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The hard casing bending test apparatus, designed in accordance with IEC 61386-21:2021 Clause 10.4.102 and Figure 103, is engineered to evaluate the bending performance of non-metallic and composite conduits, including insulating electrical conduits. The test procedure involves inserting a specified bending mandrel into the conduit specimen. The specimen is securely fixed using a forming mold and clamping mechanism. The apparatus then applies controlled bending force to achieve a predetermined angle. Post-test evaluation includes visual inspection for cracks and verification of gauge passage through the conduit under its own weight, thereby assessing structural integrity and bending resistance. The equipment ensures stable, repeatable operation in compliance with international standards, providing objective data for quality assurance of conduit systems.
Standards:
| Standards | Standards Names |
| IEC 61386-1:2017 | Rigid conduit systems for electrical installation – Part 1: General requirements |
| GB/T 20041.1-2015 | 电气安装用导管系统 第 1 部分：通用要求 |
| GB/T 14823.2-2017 | 电气安装用导管 第 2 部分：刚性绝缘材料平壁导管 |
| JG 3050-1998 | 建筑用绝缘电工套管及配件 |
| ZBG 33008-1990 | 聚氯乙烯塑料波纹电线管 |
Specification:
• Nominal diameter of specimen sleeve: 16, 20, 25 mm
• Transverse radius of profile wheel: 48, 60, 75 mm
• Bending wheel track radius: 84, 105, 131.25 mm
• Profile wheel and bending wheel groove radius: 8.1, 10.1, 12.6 mm
• Bending wheel groove diameter: 24, 30, 37.5 mm
• Specimen bending angle: 180 degrees
• Overall dimensions: 300*300*600 mm
• Weight: approximately 25 kg
Standard:
IEC 61386-21:2021 (GB/T 20041.21) “Conduit systems for cable management – Part 21: Particular requirements – Rigid conduit systems” Clause 10.4.102 and Figure 103
IEC 61386-21:2021 Clause 10.4.102
IEC 61386-21:2021 Figure 103
Tags：LS-B52