A cable tray is a structural support system used to carry cables and is commonly found in buildings and industrial facilities. In order to ensure that the quality of the cable tray is qualified, a series of inspection procedures need to be carried out. The following is a detailed description of the inspection procedures and requirements of the cable tray:
1.Specification and design document review: The first step is to review the specifications and design documents of the cable tray to ensure that it meets the requirements of the relevant standards and specifications, including dimensions, materials, load capacity, etc.
2.Material inspection: Inspect the materials used in the cable tray to ensure that they meet the design requirements and relevant standards. For example, the chemical composition, mechanical properties and surface treatment of the steel are checked.
3.Appearance inspection: Check the appearance of the cable tray, including welding quality, surface coating, corrosion degree, etc., to ensure that there are no defects and damage.
4.Dimensional and geometry inspection: Measure and inspect the dimensions and geometry of the cable tray to ensure that it meets the design requirements. This includes measuring the length, width, and thickness of individual parts, as well as the location and size of the connecting holes.
5.Load test: Load test is carried out on the cable tray to simulate the load under actual use conditions. A certain static or dynamic load is usually applied and the cable tray is observed to see if it can withstand the load without deformation or failure.
6.Anti-corrosion performance inspection: If the cable tray needs to have anti-corrosion properties, such as galvanizing or coating treatment, it is necessary to carry out corresponding anti-corrosion performance inspection to ensure that it meets the relevant standards and requirements.
7.Safety performance inspection: inspect the safety performance of the cable tray, including its seismic performance, fire performance, etc. This can be verified by simulating an accident situation in a real-world use environment to ensure that the cable tray can still provide stable support and protection in an emergency.
8.Accessories inspection: inspect the accessories used in the cable tray to ensure that their quality is qualified, such as bolts, nuts, gaskets, etc.
9.Identification and packaging inspection: Finally, the identification and packaging of the cable tray are inspected to ensure that the identification is clearly visible, the packaging is intact, and it is convenient for transportation and storage.
After the above inspection procedures are completed, the cable tray can only be shipped if it meets all the quality requirements and relevant standards. The purpose of these inspection procedures is to ensure that the cable tray is of reliable quality and meets the needs and safety requirements of the user.