I. Core Information of the Product Itself
(I) Detailed Specification Parameters
Basic Parameters of High-Voltage Detector
This high-voltage detector features an integrated sealed design, with a body size of 380mm × 160mm × 120mm and an overall weight controlled within 2.8kg, making it easy for operators to carry and use in field operations. Its detection frequency range covers 50Hz - 200Hz, enabling it to accurately identify cable signals with voltage levels ranging from 10kV to 220kV, with a maximum detection distance of up to 50 meters. The device is equipped with a 3.5-inch high-definition display with a resolution of 800 × 480, which supports real-time data display and waveform analysis. It has a built-in 2000mAh rechargeable lithium battery that allows for a continuous working time of no less than 8 hours and a standby time of up to 72 hours. In addition, the detector is equipped with multiple protection functions, with an IP65 protection rating. It can operate stably in an ambient temperature range of -20℃ to 60℃ and can still work normally under a relative humidity of 95% (without condensation).
The core specifications of the cable include three mainstream models: 3 × 240mm², 3 × 120mm², and 3 × 150mm², all adopting a multi-strand stranded Aluminum Conductor structure. Among them, the single-strand aluminum conductor diameter of the 3 × 240mm² model is 0.5mm, and the outer diameter after stranding is 18.2mm; the single-strand aluminum conductor diameter of the 3 × 120mm² model is 0.4mm, and the outer diameter after stranding is 12.5mm; the single-strand aluminum conductor diameter of the 3 × 150mm² model is 0.45mm, and the outer diameter after stranding is 14.3mm. The thickness of the insulation layer varies depending on the model. The insulation layer thickness of the 3 × 240mm² cable is 4.5mm, that of the 3 × 120mm² is 3.4mm, and that of the 3 × 150mm² is 3.8mm. In terms of overall outer diameter, the 3 × 240mm² cable is 32.6mm, the 3 × 120mm² is 25.8mm, and the 3 × 150mm² is 28.4mm. The weight per kilometer is 380kg, 220kg, and 280kg respectively. The rated operating temperature is 90℃, and the temperature during a short circuit (with a maximum duration of 5 seconds) does not exceed 250℃. The ambient temperature during laying should not be lower than 0℃, and the bending radius is 12 times the outer diameter of the cable.
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(II) Characteristic Uses
Characteristic Uses of High-Voltage Detector
This high-voltage detector is specially designed for Underground Cable detection and has three core functions: cable path detection, buried depth measurement, and fault location. In terms of cable path detection, it can accurately track the direction of Underground Cables through two modes: the induction method and the direct connection method. Even in complex geological environments such as stony soil and concrete-covered areas, it can maintain high detection accuracy. The buried depth measurement function supports non-excavation measurement within the range of 0.5 meters to 3 meters, with an error of no more than ±5%. The fault location function can quickly identify fault points such as short circuits, open circuits, and insulation aging of cables, with a positioning error controlled within 0.5 meters, which greatly shortens the time for fault troubleshooting. In addition, the device supports data storage and export functions, which can store 1000 sets of detection data and export them to a computer through a USB interface for further analysis. It is widely used in scenarios such as power inspection, cable maintenance, and cable detection before engineering construction. This series of cables is suitable for underground power transmission systems with a rated voltage of 0.6/1kV and below. Due to the use of Aluminum Conductors, they have good electrical conductivity and economy, making them particularly suitable for use as main lines or branch lines in medium and low-voltage distribution networks. In urban power grid transformation, they can be used to replace traditional copper-Core Cables to reduce project costs. In power transmission in industrial parks, they can meet the power supply needs of various industrial equipment. In rural power grid construction, they can adapt to complex field environments and ensure stable power transmission. In addition, due to the excellent performance of their insulation layers and sheaths, they can also be used in harsh environments such as humid and dusty places, such as underground garages and mine auxiliary power supply systems. At the same time, these cables support various laying methods such as direct burial and pipe laying, with strong Flexibility, which can meet the needs of different engineering scenarios. (III) Materials and Styles
Materials and Styles of High-Voltage Detector
The detector shell is made of high-strength ABS engineering plastic, which has good impact resistance and corrosion resistance. The surface is treated with anti-slip processing, providing a comfortable grip. The display screen is made of tempered glass, which has strong scratch resistance and can effectively protect the screen from external damage. The internal core components use high-precision sensors and imported chips to ensure the accuracy and stability of detection data. The overall design of the device is simple and elegant, with a reasonable layout of the operation panel. The buttons are made of silica gel, which has a soft touch and a long service life. In terms of style, it adopts a handheld design and is equipped with an adjustable wristband, which is convenient for operators to carry during work and avoids accidental dropping.
The conductor is made of high-purity aluminum material with a purity of more than 99.5%. It is annealed to improve the flexibility and electrical conductivity of the conductor. The insulation layer is made of cross-linked polyethylene (XLPE), which has excellent electrical insulation performance, heat resistance, and mechanical strength. It is not easy to age after long-term use and can effectively prevent current leakage. The outer sheath is made of polyvinyl chloride (PVC), which has good corrosion resistance, wear resistance, and weather resistance. It can protect the internal structure of the cable from damage by the external environment, such as chemical substances in the soil and mechanical collisions. The cable has a circular structure, is made by Multi-Core stranding, has a black appearance, and a smooth surface, which is convenient for laying and installation. (IV) Production Process
Production Process of High-Voltage Detector
The production of the detector adopts an automated assembly line operation, covering multiple links such as component procurement, assembly, debugging, and testing. Component procurement strictly follows quality standards, and all core components undergo strict screening and testing to ensure they meet the equipment performance requirements. The assembly process uses precision tooling fixtures for positioning to ensure the accuracy of component installation. Key parts use automated welding technology to improve connection strength and stability. In the debugging stage, professional testing equipment is used to calibrate various functions of the detector one by one, such as detection frequency, detection distance, and data display, to ensure that the equipment performance meets the standards. The testing link includes environmental tests such as high and low-temperature tests, vibration tests, and drop tests, as well as performance tests. Only products that pass all tests can leave the factory.
The cable production goes through processes such as aluminum rod smelting, wire drawing, stranding, insulation extrusion, sheath extrusion, armoring (if needed), and inspection. Aluminum rod smelting adopts a continuous casting process, with strict control of smelting temperature and impurity content to ensure the quality of aluminum rods. In the wire drawing process, aluminum rods are drawn into Aluminum Wires of the required diameter through multiple wire drawing dies, and annealing treatment is carried out at the same time to improve the mechanical properties of the Aluminum Wires. The stranding adopts a regular stranding process, and the stranding pitch is determined according to the cable specifications to ensure the roundness and structural stability of the conductor. The insulation extrusion uses a three-layer co-extrusion process to uniformly extrude XLPE material on the surface of the conductor, ensuring that the insulation layer has a uniform thickness and no defects such as bubbles and impurities. The sheath extrusion also uses an extrusion process to extrude PVC material outside the insulation layer to form a tight sheath layer. During the production process, each process is equipped with online detection equipment to monitor the diameter, thickness, and appearance of the cable in real-time to ensure stable product quality. II. General Product Information
(I) Packaging
Packaging of High-Voltage Detector
The detector uses double-layer packaging. The inner layer is an anti-static bag, which can effectively prevent static electricity from damaging the internal components of the equipment. The middle layer is a foam buffer pad, which is customized according to the shape of the detector. It can tightly wrap the detector to reduce vibration and collision during transportation. The outer layer is a corrugated carton with a thickness of 5 layers, which has high compressive strength. The surface is printed with product name, model, specification, weight, manufacturer, and other information. Each carton can hold 1 detector, and is also equipped with accessories such as product instructions, certificates of conformity, warranty cards, and charging cables. The accessories are independently packaged and placed in special grooves in the carton. For bulk orders, pallet packaging can be used. Multiple cartons are neatly stacked on the pallet and fixed with stretch film to prevent the cartons from tipping over during transportation.
Packaging of YJLV Underground Power Cables
The cables are packaged with wooden reels. The wooden reels are made of high-quality pine wood, which has high strength and is not easy to deform. The cables are neatly wound on the wooden reels, and appropriate tension is maintained during the winding process to avoid loose or excessive stretching of the cables. Both sides of the wooden reel are equipped with iron flanges, which are convenient for hoisting and transportation. The length of the cable that can be wound on each wooden reel varies according to the cable specifications. The 3 × 240mm² cable can be wound 500 meters per reel, and the 3 × 120mm² and 3 × 150mm² cables can be wound 800 meters per reel. The surface of the wooden reel is printed with cable model, specification, length, weight, manufacturer, and other information, and a product certificate is affixed. For export orders, the packaging will comply with international transportation standards. The wooden reels are fumigated and a fumigation certificate is provided to avoid affecting transportation due to wood quarantine issues.
(II) Transportation
Appropriate transportation methods are selected according to the order quantity and the customer's location. For a small number of samples or small batch orders, express transportation such as SF Express and Debon is used, which can provide door-to-door service with short transportation time and guaranteed service quality. For large batch orders, road transportation or railway transportation is adopted. Road transportation uses professional freight vehicles equipped with rainproof and sunproof facilities to ensure that cables and detectors are not affected by bad weather during transportation. Railway transportation uses container transportation, which has high safety and is suitable for long-distance transportation. For export orders, sea freight or air freight is selected according to the destination. Sea freight is suitable for large quantities of goods with low cost, while air freight is suitable for urgent orders with fast transportation speed.
Transportation Precautions
During transportation, it is strictly forbidden to invert, squeeze, or violently collide with the detectors and cables. For detectors, the transport vehicle should drive smoothly to avoid sudden braking and sharp turns. For cables, special lifting tools should be used during hoisting, and the lifting points should be located at the flanges of the wooden reels to avoid damaging the cables. During transportation, rainproof, moisture-proof, and sunproof measures should be taken, and the detector cartons and cable wooden reels must be covered with rainproof cloth. If encountering special weather such as heavy rain and high temperature during transportation, corresponding protective measures should be taken to ensure that the products are not affected. At the same time, the transport driver should be familiar with the transportation requirements of the products and regularly check the condition of the goods to ensure that the products are delivered to the destination safely.
(III) Delivery
For products in stock, delivery will be arranged within 24 hours after the order is confirmed and the payment is received. For orders that need to be produced, the delivery time will be determined according to the order quantity and production progress. Generally, the production cycle for small batch orders (cable length within 1000 meters and detector quantity within 10 units) is 7-10 days, and the production cycle for large batch orders is 15-30 days. The specific delivery time will be negotiated with the customer when the order is confirmed. Before delivery, the staff will re-inspect the products to ensure that the product quality is qualified and will promptly inform the customer of the delivery information such as the logistics tracking number and estimated arrival time.
After the customer places an order, the customer service staff will review the order information, including product model, specification, quantity, and delivery address. After passing the review, the order information is transmitted to the warehouse. Warehouse staff prepare goods according to the order information, and after preparation, product inspection and packaging are carried out. After packaging is completed, contact the logistics company to pick up the goods and go through the consignment procedures. After the logistics company picks up the goods, it will feed back the logistics information to the company, and the company will then inform the customer of the logistics information. If the customer has any objections to the goods after receiving them, they can contact the company in time.
(IV) Samples
The company can provide samples for customers, and the sample specifications are consistent with the formal products. If a customer needs samples, they need to apply to the company and pay the sample fee and freight. The sample fee can be refunded when the customer places a formal order later and the order amount reaches a certain quantity. The sample production cycle is generally 3-5 days, and the samples will be shipped to the customer in time after production.
Samples are only used for customers to inspect and evaluate the quality, performance, and appearance of the products and shall not be used for commercial purposes. After receiving the samples, the customer should feedback the sample evaluation results to the company within the specified time. If the customer has modification opinions on the samples, the company will make adjustments according to the opinions and provide new samples again if necessary.
(V) After-Sales Service
After-Sales Service Content
The company provides perfect after-sales services for the products, including product installation guidance, use training, maintenance, and troubleshooting. For high-voltage detectors, the warranty period is 1 year. During the warranty period, if the product has faults caused by non-human damage, the company will provide free repair or replacement services. After the warranty period, reasonable repair fees and component costs will be charged. For YJLV underground power cables, the warranty period is 5 years. During the warranty period, if the cable fails due to quality problems, the company will provide free replacement services.
After-Sales Service Process
If customers encounter problems during the use of the products, they can contact the company's after-sales service department by phone, email, online customer service, etc. After receiving customer feedback, after-sales service personnel will respond within 2 hours to understand the problem situation. For simple problems, they will help customers solve them through phone or online guidance. For complex problems, technical personnel will be arranged for on-site service, and on-site service will generally arrive at the scene within 24-48 hours (except for remote areas). After the problem is solved, after-sales service personnel will conduct a return visit to the customer to understand customer satisfaction and ensure that the problem is completely solved. At the same time, the company has established a perfect customer file to record and manage customer after-sales information to provide customers with better follow-up services.
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