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Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
                        Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. heeft in 2013 opgericht, gevestigd in Xi'an, China, dat een zeer ervaren team is dat zich toelegt op het ontwikkelen van elektrische meetinstrumenten,de productlijn omvat een breed scala aan apparaten voor het testen van verschillende elektrische gebieden, zoals ondergrondse kabelfoutlocatiesysteem, test van de transformator, AC/DC Hipot-test, isolatieweerstandstest enzovoort.Met rijke meetervaringen van innovatie combineren en geavanceerde technologie om de meest betrouwbare elektrische meting te bieden. De productie, de ontwikkeling van het ontwerp en de inspectie worden uitgevoerd volgens de ISO 9001 en CE-normen, die een consistente kwaliteit van de producten garanderen.XZH TEST beheert een verscheidenheid aan technologieën, evenals uitgebreide service en ondersteuning om de hoogste waarde te leveren aan onze klanten. We houden ons oprecht aan het principe van "kwaliteit eerst, klanten opperste, eer toezegging vertrouwen waardig".Blijft toezegging R & D over elektrische energie detectie apparatuur en elektrische energie automatisering,Sinds de oprichting, blijft het bedrijf leven tot de overtuiging van: "Creëren van een kwalitatief hoogwaardig merk, gieten van een eersteklas bedrijf imago". Ook maken we de "stabiele ontwikkeling,"de beste kwaliteit" als kernconcept van de onderneming. Ons doel is om onze klanten te voorzien van betrouwbare test- en meetapparatuur die veiliger en makkelijker te gebruiken is. Xi'an Xu & Hui Electromechanical Technology Co., Ltd verwacht de relatie met wereldwijde medewerkers te versterken,en hartelijk welkom zakelijke partners om onze fabriek te bezoeken voor het ontwikkelen van de OEM & ODM win-win samenwerking. Ons team Fabrieksscène Training is een kernopleiding voor alle leden en we zullen verschillende trainingen organiseren om ons te helpen onze vaardigheden te verbeteren en de schoonheid van het leven te ontdekken.We koesteren de tijd die we samen leren en bestuderen. Dienstverlening We hebben de mogelijkheid om nieuwe producten en technologieën te innoveren. Wij kunnen complete systeemoplossingen voor uw project leveren. We bieden online en offline praktische en theoretische training. We repareren en kalibreren instrumenten. Certificering
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Science Popularization Mini-Lesson: Electrical Performance Testing of Power Cables 2025-12-06 To ensure safe power supply, power cables undergo a series of electrical performance tests before leaving the factory, after installation, and during use. Based on the purpose of the test, cable tests can be divided into five categories: type tests, sample tests, routine tests, acceptance tests, and preventive tests. (1) Type Test: This is a test conducted by the manufacturer before mass production of a new type of cable. This test compares the performance and quality of the new product with existing products, or directly demonstrates that the new product meets the performance requirements for actual operation.  It is generally only performed once, unless there are changes in materials, structure, or manufacturing process. (2) Sample Test: This is a test conducted by the manufacturer on a certain proportion of cables sampled from a batch.(3) Routine Test: This is a test conducted by the manufacturer on all finished cables to check for problems in the mass production process and to ensure the quality stability of the product.(4) Acceptance Test: This refers to the test performed on cables after new installation and before commissioning, sometimes also including tests after major or minor repairs. (5) Preventive Test: This usually refers to periodic maintenance tests performed on cables during operation to promptly detect potential problems and changes in cable performance, preventing accidents or damage to the cables.
Popular Science Lesson: Thermal Shrinkable Cable Joints 2025-12-04 Heat-shrinkable cable joints are cable joints manufactured using a complete set of heat-shrinkable cable accessories. These accessories are made from rubber and plastic materials using special processes and include heat-shrinkable insulating tubes, heat-shrinkable semi-conductive tubes, heat-shrinkable oil-resistant tubes, heat-shrinkable sheathing tubes, heat-shrinkable branch tubes, and heat-shrinkable rain skirts. Due to their relatively simple manufacturing process, they are widely used for the termination and intermediate joints of various rubber and plastic cables with different voltage ratings. Their internal structure is similar to that of wrapped cable joints. Schematic diagram of 10kV XPEL cable heat-shrinkable single-phase intermediate joint and outdoor terminal structure (a) Single-phase intermediate joint structure diagram; (b) Outdoor terminal structure diagram1—Conductor; 2—Inner semiconductive layer; 3—XLPE insulation layer; 4—Outer semiconductive layer; 5—Copper shielding tape; 6—Connecting tube; 7—Stress control tube; 8—Inner insulation tube; 9—Outer insulation tube; 10—Shielding tube; 11—Semiconductive tape; 12—Filling adhesive; 13—Stress relief adhesive; 14—Sealant; 15—Copper shielding mesh; 16—Copper braided tape; 17—Binding wire; 18—Terminal; 19—Cable core wire; 20—Sealing tube; 21—Cable insulation layer; 22—Outdoor heat-shrinkable tubing; 23—Single-hole rain skirt; 24—Stress tube; 25—Cable semiconductive layer; 26—Cable copper shielding layer; 27—Three-hole rain skirt; 28—Three-way branch sleeve; 29—Grounding wire; 30—Cable clamp Schematic diagram of 35kV single-core extruded heat-shrinkable intermediate joint and terminal structure (a) 35kV single-core extruded heat-shrinkable intermediate joint structure(b) 35kV single-core extruded heat-shrinkable terminal structure 1, 20—Cable sheath; 2, 19—Copper shield; 3—Stress relief adhesive; 4—Semi-conductive layer; 5—Stress control tube; 6—Core insulation; 7—Semi-conductive tape; 8—Connecting tube; 9—J30 self-adhesive tape; 10—Inner insulation tube; 11—Outer insulation tube; 12—Semi-conductive tube; 13—Copper shielding mesh; 14—Sheath tube; 15—Terminal; 16—Sealant; 17—Sealing tube; 18—Insulation tube; 21—Ground wire Cold shrink cable joints are cable joints or terminations made with a set of cold shrink cable accessories. They are typically made of silicone rubber or ethylene/propylene rubber, allowing for natural shrinkage. Normally, a spiral plastic support strip is used to maintain the inner diameter and shape of the accessory before use. During field installation, simply slip the accessory onto the cable joint (terminal or intermediate point), pull out the plastic support strip, and the rubber accessory will tightly shrink onto the corresponding part of the cable. The entire process requires no heating, simplifying the installation process. Currently, cold shrink accessories are mainly used on cables with voltage levels of 35kV and below, as shown in the figure. Schematic diagram of cold-shrink cable joint structure (a) Material of cold-shrink cable joint; (b) Cross-sectional view of single-core joint; (c) Cross-sectional view of three-core joint;1—Cable; 2—Cable insulation layer; 3—Stress pile; 4—Shielding tube; 5—Copper connecting tube; 6—Supporting liner; 7—Steel armor; 8—Inner sheath of cable; 9—Constant force spring; 10, 11—Outer semiconductive layer; 12—Core insulation layer; 13—Inner semiconductive layer; 14—Conductor connecting hardware; 15—Copper shielding mesh; 16—Grounding wire; 17, 18—Special armored waterproof tape; 19—Armor tape Schematic diagram of cold shrink cable termination structure (a) Cold shrink termination material(b) Cross-sectional view of three-core termination 1—Cold shrink cable termination; 2—Cold shrink three-finger sleeve; 3—Cold shrink sheath; 4—Cold shrink sealing tube; 5—Conductor connection hardware; 6—Elastic sealing tape; 7—Insulation layer; 8—High dielectric constant electrical stress control stack; 9—Semiconductive layer; 10—Phase color band; 11, 12—Copper shielding layer; 13—Filling adhesive; 14, 15—Constant force spring; 16—Grounding wire
Popular Science Lesson: Wrapped Cable Joint 2025-12-02 The insulation and semi-conductive shielding layers of the wrapped cable joint are both made of self-adhesive tape with rubber as the base material. It is mainly suitable for the termination and intermediate joints of medium and low voltage extruded insulated cables of 35kV and below. Schematic diagram of the structure of a wrapped extruded cable joint (a) Single-core cable joint(b) Three-core cable joint 1, 15 – Cable outer sheath;2, 16 – Metal shielding layer;3, 27 – Crossover ground wire;4, 17 – Binding copper wire;5, 18 – Cable outer semiconductive layer;6, 20 – Self-adhesive rubber semiconductive tape;7, 21 – Copper shielding mesh;8, 22 – Heat shrink tubing;9, 19 – Cable insulation layer;10, 23 – Reactor;11, 24 – Cable inner lining layer;29 – Cable armor Schematic diagram of a wrapped cable terminal structure:1—Terminal;2—Cable core;3—Cable insulation and self-adhesive rubber insulation tape;4—Rain cover;5—Branch sleeve;6—Cable grounding wire;7—Cable outer sheath;8—Stress pile Prefabricated cable joints are cable joints made from prefabricated cable accessories. These accessories are made of silicone rubber or EPDM rubber and consist of a series of attachments that provide the necessary shape for the cable joint. During field installation, simply slip the accessories over the cable insulation, simplifying the installation process. Because prefabricated cable accessories must correspond one-to-one with the cable's outer diameter, there are many specifications and models available. Currently, prefabricated cable accessories are used on cables of various voltage levels. The internal structure of the cable joint is basically the same as that of a cold-shrink cable joint.
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Gebouw B8-01, Fase I, Ronghao Industrial City, 2098, Weiyang 9th Road, Gaoling District, Xi'an, China
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