{"id":5049,"date":"2026-03-29T13:14:09","date_gmt":"2026-03-29T05:14:09","guid":{"rendered":"https:\/\/www.clelek.com\/?post_type=blog&#038;p=5049"},"modified":"2026-03-24T13:25:23","modified_gmt":"2026-03-24T05:25:23","slug":"quality-control-standards-for-assembled-switchgear-cabinet-manufacturing","status":"publish","type":"blog","link":"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing","title":{"rendered":"Quality Control Standards for Assembled Switchgear Cabinet Manufacturing"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Introduction\" >Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Fundamental_Quality_Control_Principles_for_Switchgear_Cabinet_Manufacturing\" >Fundamental Quality Control Principles for Switchgear Cabinet Manufacturing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Incoming_Raw_Material_and_Component_Quality_Control\" >Incoming Raw Material and Component Quality Control<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Quality_Control_in_the_Fabrication_and_Assembly_Phase\" >Quality Control in the Fabrication and Assembly Phase<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Structural_fabrication_QC\" >Structural fabrication QC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Component_assembly_QC\" >Component assembly QC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Insulation_performance_control\" >Insulation performance control<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Sealing_and_protection_QC\" >Sealing and protection QC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Assembly_process_documentation\" >Assembly process documentation<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Pre-Testing_and_Performance_Quality_Control_Standards\" >Pre-Testing and Performance Quality Control Standards<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Quality_Control_in_Finishing_Packaging_and_Delivery\" >Quality Control in Finishing, Packaging, and Delivery<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Quality_Control_Management_and_Process_Optimization\" >Quality Control Management and Process Optimization<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Compliance_and_Certification_Quality_Control_Requirements\" >Compliance and Certification Quality Control Requirements<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.clelek.com\/fr\/blog\/quality-control-standards-for-assembled-switchgear-cabinet-manufacturing\/#FAQs\" >FAQ<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span><b>Introduction<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The electrical switch cabinet is the core infrastructure of the power distribution system, which undertakes the key tasks of power control, protection, and distribution of industrial, commercial, and municipal power grids. As a highly integrated and modular category of switchgear equipment, the <\/span><a title=\"assembled switchgear cabinet\" href=\"https:\/\/www.clelek.com\/fr\/product-category\/assembled-switchgear-cabinet\/\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>assembled switchgear cabinet<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\">, with its flexible configuration and stable performance, is widely used in 10kV- 40.5kV medium and high voltage power systems. As a professional electrical switchgear manufacturer with advanced production and testing capabilities, <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> is engaged in the manufacture of <\/span><a title=\"assembled switchgear cabinet\" href=\"https:\/\/www.clelek.com\/fr\/product-category\/assembled-switchgear-cabinet\/\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>assembled switchgear cabinets<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\">. A strict and perfect quality control system has been established in the whole process of switchgear cabinet manufacturing.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This article takes the quality control practice of <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> as the core, and systematically expounds the quality control standards and implementation details of the complete set of switchgear manufacturing from the inspection of raw materials to the delivery of finished products. Combining the general principles of the industry and the specific technical requirements of enterprises, it provides a reference for the high-quality production of switchgear and electrical switchgear. The content covers key links such as raw material inspection, structural processing, component assembly, performance testing, and packaging delivery, fully reflecting the quality control concept of &#8220;precision, standardization, and traceability&#8221; in the manufacture of switch cabinets.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Fundamental_Quality_Control_Principles_for_Switchgear_Cabinet_Manufacturing\"><\/span><b>Fundamental Quality Control Principles for Switchgear Cabinet Manufacturing<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The quality control of complete set switchgear manufacturing and switchgear manufacturing should adhere to four core basic principles, which permeate the entire production process and are the basis for ensuring the reliability, safety, and durability of switchgear equipment.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Core Principles<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Core Content<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Implementation Requirements of <\/span><b>Chuanli<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Standardization Principle<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Adhere to international and national industry standards, unify production and testing processes. All products comply with IEC 62271 and GB\/T standards<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Standardized operation manuals are developed for each production stage.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Traceability Principle<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Achieve full-process traceability of raw materials, components, and production processes.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Establish a full-process data recording system; each cabinet is equipped with a unique production and testing code.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Precision Principle<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Precision Principle: Ensure dimensional and assembly accuracy of the switchgear to meet functional requirements.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Laser cutting and CNC machining are employed, achieving millimeter-level precision; all assembly connections undergo torque calibration.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Safety Principle<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Prioritize electrical and structural safety, eliminating potential safety hazards during production.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Strictly control the insulation performance, short-circuit withstand capability, and arc protection performance of the switchgear equipment.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Incoming_Raw_Material_and_Component_Quality_Control\"><\/span><b>Incoming Raw Material and Component Quality Control<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Raw materials and core components are the foundation of the quality of the complete set of switch cabinets, and <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> has formulated strict in-plant inspection standards for switch cabinet manufacturing. Key raw materials and core components are subject to 100% inspection, and only materials from globally certified suppliers (in the EU and Asia) are selected.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Material\/Component Type<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Core Testing Items<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Acceptance Standards<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Testing Methods<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cabinet Steel Plate<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Dimensional accuracy, tensile strength, surface flatness<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Cutting accuracy to the millimeter level; conforms to national industrial steel standards<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Laser dimensional measurement, X-ray tensile testing<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Conductive Copper Busbar<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Conductivity, dimensional tolerance, surface quality<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Purity \u226599.9%\u00a0 High-purity copper; surface free of scratches and oxidation<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Conductivity testing, precision caliper measurement<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Vacuum Circuit Breaker (Core Component)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Breaking capacity, breaking time, and insulation performance<\/span><\/td>\n<td><span style=\"font-weight: 400;\">25kA short-circuit current rating; &lt;50ms fast breaking; conforms to IEC 62271 standard<\/span><\/td>\n<td><span style=\"font-weight: 400;\">professional performance testing platform testing.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Insulating bushings<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Impulse voltage resistance and insulation performance<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Silicone rubber-coated bushings can withstand 70kV impulse voltage<\/span><\/td>\n<td><span style=\"font-weight: 400;\">75kV\/1min power frequency withstand voltage test<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Sensors (Intelligent Monitoring Components)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Measurement Accuracy, Response Speed, Temperature Accuracy<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u00b10.5\u2103; Real-time Current Acquisition<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High-Precision Instrument Calibration<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\"> <a href=\"https:\/\/www.clelek.com\/fr\/product-category\/assembled-switchgear-cabinet\/\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-5051 size-medium\" src=\"https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2026\/03\/72-300x169.jpg?quality=85&strip=all\" alt=\"Quality Control Standards for Assembled Switchgear Cabinet Manufacturing\" width=\"300\" height=\"169\" srcset=\"https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2026\/03\/72-300x169.jpg?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2026\/03\/72-1024x575.jpg?quality=85&strip=all 1024w, https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2026\/03\/72-768x432.jpg?quality=85&strip=all 768w, https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2026\/03\/72-1536x863.jpg?quality=85&strip=all 1536w, https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2026\/03\/72-18x10.jpg?quality=85&strip=all 18w, https:\/\/i1.wp.com\/www.clelek.com\/wp-content\/uploads\/2026\/03\/72.jpg?quality=85&strip=all 1920w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Quality_Control_in_the_Fabrication_and_Assembly_Phase\"><\/span><span style=\"font-weight: 400;\"><b>Quality Control in the Fabrication and Assembly Phase<\/b><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The processing and assembly stage is the core link of the manufacturing of complete switchgear, and the quality control of this stage directly determines the structural stability and functional reliability of the switchgear equipment. <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\"><em><b>Chuanli<\/b><\/em><\/span><\/a><span style=\"font-weight: 400;\"> divides this stage into five major quality control modules and implements graded, fine-grained quality control.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Structural_fabrication_QC\"><\/span><span style=\"font-size: 20px;\"><b>Structural fabrication QC<\/b><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Structural processing is the foundation of the switchgear cabinet body, mainly including steel cutting, welding, and forming. <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> uses laser cutting technology to ensure millimeter-level precision in steel cutting, maximize material utilization, and provide high-standard raw materials for subsequent processing. The welding work is completed by three Panasonic welding robots operated by certified welders, and all welds are tested for gas tightness to ensure that the weld strength and gas tightness meet the industrial-grade durability requirements. After molding, the cabinet body is measured and tested for structural stability to eliminate deformation and size deviation problems.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Component_assembly_QC\"><\/span><span style=\"font-size: 20px;\"><b>Component assembly QC<\/b><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The assembly of components is the key to realizing the function integration of the complete set of switch cabinets. <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> strictly follows the standardized assembly process and integrates core components such as vacuum circuit breakers, current transformers, and microcomputer protection devices. All assembly connection parts are calibrated and tested for torque and alignment, ensuring precise connection and flexible operation of components. Conduct a contact resistance test on the key conductive parts to avoid energy loss and heat caused by poor contact. The assembled switchgear must ensure seamless interchangeability of modular components in accordance with the IEC 62 271 standard.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Insulation_performance_control\"><\/span><span style=\"font-size: 20px;\"><b>Insulation performance control<\/b><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The insulation performance is the core index to ensure the electrical safety of electrical switch cabinets. <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> adopts a multi-level insulation performance control scheme for switch cabinet manufacturing: First, select high-quality insulating materials such as silicone rubber-coated tubing and insulating plates; Second, during the assembly process, the insulation performance of each insulating component is tested one by one, and the nonconforming products are eliminated; The third is to carry out the overall insulation resistance test and the test of the withstand voltage at the frequency of 50 Hz on the switchgear that has been assembled, to ensure that it can withstand the rated working voltage and the impact voltage without breaking down.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sealing_and_protection_QC\"><\/span><span style=\"font-size: 20px;\"><b>Sealing and protection QC<\/b><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The sealing and protection performance of the set switch cabinet determines its adaptability to different working environments, <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> strictly controls the cabinet sealing performance, adopts multi-layer sealing structure for cabinet door, cable inlet and other parts, finished switch cabinet meets IP protection level requirements, outdoor type can be adapted to -40 \u2103 to + 70 \u2103 harsh environment; The arc-proof design conforms to the IEC 61 439-2 standard, has a fault tolerance of 50kA, effectively prevents the leakage of arcs, and ensures the safety of equipment and operators.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Assembly_process_documentation\"><\/span><span style=\"font-size: 20px;\"><b>Assembly process documentation<\/b><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">According to the traceability principle of quality control, <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> has established a perfect assembly process documentation system for the manufacture of complete switch cabinets. Each operation link is recorded in detail, including component model and batch number, assembly operator, assembly time, torque calibration data, test results, and other information. All documents are electronically archived and can be quickly queried and traced, providing a reliable basis for subsequent quality tracing and equipment maintenance.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Pre-Testing_and_Performance_Quality_Control_Standards\"><\/span><b>Pre-Testing and Performance Quality Control Standards<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Comprehensive pre-test and performance testing must be carried out on the complete set of switch cabinets before they are put on the market, which is the last key barrier to ensuring the quality of switch cabinet equipment. <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> has built a professional automation testing laboratory. According to the ISO 90001 quality system standard, each switch cabinet is subjected to a full project performance test. The core test items and qualified standards are as follows:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Short-circuit current test: Verify the short-circuit resistance of the switch cabinet. The vacuum circuit breaker needs to withstand 25kA short-circuit current rated value; the cabinet body should not be deformed or damaged.<\/span><\/p>\n<p><b>Disconnection performance test:<\/b><span style=\"font-weight: 400;\"> Test the disconnection time of the vacuum circuit breaker, which needs to achieve rapid disconnection within &lt; 50ms to ensure that the fault current is cut off in time.<\/span><\/p>\n<p><b>Local discharge test:<\/b><span style=\"font-weight: 400;\"> Local discharge value &lt;5pC, avoid local discharge caused by insulation damage;<\/span><\/p>\n<p><b>Intelligent monitoring function test:<\/b><span style=\"font-weight: 400;\"> Test the data acquisition accuracy of integrated sensors (temperature, current) and the response speed of the monitoring system to ensure the normal operation of the predictive maintenance function.<\/span><\/p>\n<p><b>Mechanical operation test:<\/b><span style=\"font-weight: 400;\"> Repeated mechanical operation test on the closing, opening, isolation, and grounding functions of the switch cabinet to ensure that the operation is flexible and there is no jamming, with more than 10,000 operations.<\/span><\/p>\n<p><b>Insulation and voltage test:<\/b><span style=\"font-weight: 400;\"> 75kV\/ 1min AC voltage withstand test on the whole cabinet, no breakdown or flashover, insulation resistance meets the standard.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Only switch cabinets that pass all the above tests can be marked as qualified products and enter the subsequent fine processing, packaging, and delivery cycle.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Quality_Control_in_Finishing_Packaging_and_Delivery\"><\/span><b>Quality Control in Finishing, Packaging, and Delivery<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Finishing, packaging, and delivery are the final stages of switchgear manufacturing. The quality control of this stage ensures that qualified switchgear sets can be safely and intact transported to the construction site. <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> has formulated targeted quality control standards for this stage:<\/span><\/p>\n<p><b>Fine processing quality control:<\/b><span style=\"font-weight: 400;\"> The surface of the switch cabinet is treated with anti-corrosion, anti-rust, and painting, ensuring that the paint surface is uniform, without peeling, and without scratches, thereby enhancing the environmental adaptability of the cabinet.<\/span><\/p>\n<p><b>Packaging quality control:<\/b><span style=\"font-weight: 400;\"> Packaging with customized wooden boxes and shock-absorbing packaging materials, standardized labeling on the packaging, such as hanging points, anti-moisture marks, product model, production code, etc., the packaging should have sufficient shock-absorbing and anti-pressure ability to prevent damage during transportation.<\/span><\/p>\n<p><b>Delivery quality control:<\/b><span style=\"font-weight: 400;\"> Conduct the final appearance inspection and functional sampling inspection of the switchgear before shipment, and sort out the supporting materials such as product certification, test report, and installation manual. Both sea and air transportation have full logistics tracking, ensuring the safe arrival of goods to the construction site or warehouse.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Quality_Control_Management_and_Process_Optimization\"><\/span><b>Quality Control Management and Process Optimization<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Scientific quality control management and continuous process optimization are indispensable to the manufacture of high-quality switchgear sets. As a professional manufacturer of electrical switch cabinets, <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> has established a perfect quality control management system and set up a special quality control team to be responsible for the whole process of quality supervision, inspection, and problem-solving.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In terms of process optimization, <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> takes customer feedback and on-site operation data as the starting point to continuously optimize the production and quality control process of switchgear equipment. For example, by introducing automated welding robots and laser cutting equipment, production accuracy and efficiency can be improved; By optimizing the assembly process, the maintenance downtime of modular components was reduced by 50%; By upgrading the detection system, we can improve the test coverage and accuracy. At the same time, the company regularly carries out quality control training for employees, enhances the quality awareness and professional skills of all employees, and builds a quality control system for all employees.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Compliance_and_Certification_Quality_Control_Requirements\"><\/span><b>Compliance and Certification Quality Control Requirements<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The production of complete switch cabinets and electrical switch cabinets must follow international and national industry standards and obtain relevant product certification, which is the basic requirement for quality control and the guarantee of product market access. In the manufacture of switch cabinets, <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> strictly adheres to the following compliance and certification requirements:<\/span><\/p>\n<p><b>International standard compliance:<\/b><span style=\"font-weight: 400;\"> All products comply with international electrical standards such as IEC 62071 (switchgear standard) and IEC 61438-2 (anti-arc design standard), ensuring international compatibility of products.<\/span><\/p>\n<p><b>National standard compliance:<\/b><span style=\"font-weight: 400;\"> Meets the requirements of the GB\/T series national standards for electrical switch cabinets, and adapts to the technical specifications for domestic power grid construction.<\/span><\/p>\n<p><b>Quality system certification:<\/b><span style=\"font-weight: 400;\"> The whole production process conforms to the ISO 90001 quality management system standard, realizing the standardization and institutionalization of quality control.<\/span><\/p>\n<p><b>Product certification: <\/b><span style=\"font-weight: 400;\">The product has passed the relevant electrical product certification of the country and has the qualification to supply national major projects such as the National Grid, Three Gorges Dam, and West-to-East Power Transmission.<\/span><\/p>\n<p><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> takes compliance and certification as the bottom line of quality control, regularly conducting internal and external audits to ensure that production processes and product quality always meet the latest standard requirements.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><b>Conclusion<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The quality control of a set of switchgear manufacturing is a systematic and full-process work, involving many key links such as raw material inspection, structure processing, component assembly, performance testing, and packaging delivery. As a leading manufacturer of electrical switch cabinets in the industry, based on the core principles of standardization, traceability, precision, and safety, combined with advanced production equipment, professional testing technology, and scientific management methods, a strict and perfect quality control system has been established to ensure that every switch cabinet and switch cabinet equipment meets high-quality standards.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Strict quality control is not only the guarantee of the reliability and safety of electrical switch cabinets, but also the core competitiveness of enterprises in the market. <\/span><a title=\"Chuanll Power Transformer Manufacturer\" href=\"https:\/\/www.clelek.com\/fr\" target=\"_blank\" rel=\"noopener\"><em><span style=\"text-decoration: underline;\"><b>Chuanli<\/b><\/span><\/em><\/a><span style=\"font-weight: 400;\"> will continue to adhere to the concept of quality first. We will continuously optimize the quality control process and detection technology, keep pace with the development of international industry standards, provide more reliable, safer, and higher-performance switchgear products for the global power distribution industry, and contribute to the construction of more stable and efficient power grid infrastructure.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><b>FAQ<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>Q1: What international standards does Chuanli follow for its switch cabinets?<\/b><\/p>\n<p><b>A1 :<\/b><span style=\"font-weight: 400;\"> It complies with IEC 6231, IEC 61438-2, and also meets the GB\/T national standard.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><b>Q2: What is the core inspection method of raw materials entering the switch cabinet?<\/b><\/p>\n<p><b>A2 :<\/b><span style=\"font-weight: 400;\"> Implement 100% inspection, including X-ray, tensile strength, pressure resistance, and precise dimension measurement.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><b>Q3: How does Chuanli ensure the assembly accuracy of switch cabinets?<\/b><\/p>\n<p><b>A3 :<\/b><span style=\"font-weight: 400;\"> Laser cutting and CNC machining, millimeter-level precision, full process torque calibration.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><b>Q4: What is the short-circuit capability of the complete set of switch cabinets from Chuanli?<\/b><\/p>\n<p><b>A4 :<\/b><span style=\"font-weight: 400;\"> Vacuum circuit breaker 25kA short-circuit rating, arc-proof design 50kA fault tolerance.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><b>Q5: Does Chuanli provide a full process traceability service for switch cabinets?<\/b><\/p>\n<p><b>A5 :<\/b><span style=\"font-weight: 400;\"> Yes, each cabinet is equipped with a unique code, which enables the traceability of data throughout the production and inspection process.<\/span><\/p>","protected":false},"featured_media":5050,"parent":0,"menu_order":10,"template":"","meta":[],"blog_category":[9],"class_list":["post-5049","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-industry-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.clelek.com\/fr\/wp-json\/wp\/v2\/blog\/5049","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.clelek.com\/fr\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.clelek.com\/fr\/wp-json\/wp\/v2\/types\/blog"}],"version-history":[{"count":3,"href":"https:\/\/www.clelek.com\/fr\/wp-json\/wp\/v2\/blog\/5049\/revisions"}],"predecessor-version":[{"id":5063,"href":"https:\/\/www.clelek.com\/fr\/wp-json\/wp\/v2\/blog\/5049\/revisions\/5063"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.clelek.com\/fr\/wp-json\/wp\/v2\/media\/5050"}],"wp:attachment":[{"href":"https:\/\/www.clelek.com\/fr\/wp-json\/wp\/v2\/media?parent=5049"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.clelek.com\/fr\/wp-json\/wp\/v2\/blog_category?post=5049"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}