Quality Control

Quality Control

At China Loong Power Cable Co., Ltd., quality control is integrated into every stage of our cable and wiring accessory manufacturing process. We serve international customers with products including power cables, building wires, armored cables, control cables, communication and data cables, coaxial cables, solar cables, high and medium voltage cables, flexible and rubber cables, fire resistant cables, specialty cables, and cable ties. Our quality approach is designed to support stable performance, product consistency, and compliance with agreed specifications.

Incoming Material Inspection

Materials and components are reviewed before they enter production. Our inspection activities are applied according to product requirements and internal inspection standards, with attention to the properties that influence cable safety, durability, conductivity, insulation, and mechanical performance.

• Verification of material type, grade, dimensions, and identification details.
• Inspection of conductors, insulation materials, sheathing compounds, shielding materials, armor components, and other cable structures.
• Review of relevant supplier documents and material information where required.
• Inspection of metal parts, fastening components, and materials used for nylon or stainless steel cable ties.
• Segregation and review of materials that do not meet specified requirements.

In-Process Quality Control

Production controls are applied throughout drawing, stranding, insulation, cabling, shielding, armoring, sheathing, marking, and finishing operations. Process conditions are monitored to help maintain consistent conductor dimensions, insulation thickness, cable construction, flexibility, mechanical strength, and overall appearance.

• Control of conductor size, concentricity, stranding, and cable construction.
• Monitoring of insulation and sheath application, including thickness, surface condition, and material compatibility.
• Checks on shielding, armor, grounding, and protective layers where applicable.
• Verification of product markings, identification, color, and dimensional requirements.
• Process inspections and sampling based on product specifications and production requirements.

Finished Product Inspection

Before release, finished cables and wiring accessories are inspected against the applicable product specifications. The inspection scope may include visual, dimensional, electrical, mechanical, and functional checks, depending on the cable type and the requirements of the order.

• Appearance, workmanship, construction, and surface quality.
• Conductor continuity, resistance, insulation condition, and other applicable electrical characteristics.
• Dimensions, length, weight, marking, and construction details.
• Mechanical properties and flexibility for products such as flexible, rubber, welding, and automotive cables.
• Performance-related checks for communication, data, coaxial, control, instrumentation, solar, fire resistant, and power cable applications.
• Verification of cable ties and wiring accessories for dimensions, finish, fastening performance, and material requirements.

Packaging and Pre-Shipment Check

Packaging and dispatch inspections help protect products during storage, handling, and transportation. Before shipment, our team reviews the finished goods and shipping documents to ensure that the order is prepared according to the agreed requirements.

• Confirmation of product type, specification, quantity, and required length.
• Inspection of reels, coils, cartons, pallets, protective materials, and other packaging components.
• Review of labels, cable markings, batch information, and handling instructions.
• Checking packaging integrity and protection against moisture, impact, contamination, and deformation.
• Final review of packing lists, shipping marks, and customer-specific instructions where applicable.

Feedback and Continuous Improvement

Quality information from inspections, production records, customer feedback, and shipment reviews is used to identify potential issues and improvement opportunities. When a nonconformity is found, the responsible teams evaluate the cause, define corrective actions, and verify the effectiveness of the response according to the nature of the issue.

China Loong Power Cable Co., Ltd. continues to refine its inspection methods, process controls, documentation, and communication with customers. Our goal is to provide dependable cable and wiring solutions that are clearly specified, carefully produced, and consistently reviewed throughout the order process.