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Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
                        Xi'an Xu&Hui Elektromekanik Teknoloji Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. Çin'in Xi'an şehrinde bulunan ve elektrik ölçüm cihazı geliştirmeye adanmış çok deneyimli bir ekip,Ürün hattı, çeşitli elektrik alanını test etmek için çok çeşitli cihazları kapsar., yeraltı kablo hatası belirleme sistemi, güç transformatörü testi, AC/DC Hipot testi, yalıtım direnci testi ve benzeri.En güvenilir elektrik ölçümü sağlamak için inovasyon ve gelişmiş teknolojiyi birleştiren zengin ölçüm deneyimleri ile. Tasarım geliştirme, üretim ve denetim, yüksek kaliteli ürünlerin tutarlılığını garanti eden ISO 9001 ve CE'de gerçekleştirilir.XZH TEST, müşterilerimize en yüksek değeri sunmak için çeşitli teknolojileri ve genişletilmiş hizmeti ve desteği yönetir. Biz samimiyetle "kalitesini ilk, müşterileri yüce, onur taahhüt güven değer" ilkesini tutmak.Kurulduğundan beriŞirket, "Üst düzeyde marka oluşturmak, birinci sınıf bir şirket imgesi oluşturmak" inancına uygun yaşamaya devam ediyor."En iyi kalite" kuruluşun temel kavramıdır.. Amacımız müşterilerimize güvenilir test ve ölçüm ekipmanları sağlamaktır. Daha güvenli ve kullanımı kolay, ölçümü kolaylaştırırız! Xi'an Xu & Hui Elektromekanik Teknoloji Şirketi, dünya çapındaki işbirlikçilerle ilişkileri güçlendirmeyi umuyor.OEM ve ODM kazan-kazan işbirliğini geliştirmek için fabrikamızı ziyaret etmek için iş ortaklarını sıcak bir şekilde karşılıyoruz.. Takımımız Fabrika sahnesi Eğitim, tüm üyeler için temel bir kurs ve yeteneklerimizi geliştirmemize ve hayatın güzelliğini bulmamıza yardımcı olmak için çeşitli eğitimler düzenleyeceğiz.Birlikte inceleme yaptığımız zamanı çok takdir ediyoruz. Hizmetler Yeni ürünler ve teknolojiler geliştirme yeteneğimiz var. Projenize tam sistem çözümleri sağlayabiliriz. Çevrimiçi ve çevrimdışı pratik ve teorik eğitim sunuyoruz. Enstrüman onarımını ve kalibrasyonunu sağlıyoruz. Sertifikasyon
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Popular Science Lesson: Classification of Power Cable Joints by Application 2025-11-24 In power transmission and distribution lines, a complete power cable line consists of two main parts: the cable body and the cable joints. Cable joints are a crucial component of power cable lines. During cable installation, laying, and operation, the failure rate of cable joints is often much higher than that of the cable body. Therefore, analyzing and understanding the condition of cable joints is essential. According to their purpose, cable joints are generally classified into two types: terminal joints and intermediate joints. Terminal joints can be further divided into the following three types: (1) Indoor terminal joints. Used indoors to connect the cable to the power supply equipment. Their appearance is shown in Figure (a). (2) Outdoor terminal joints. Used outdoors to connect the cable to the power supply equipment. Their appearance is shown in Figure (b). (3) Equipment terminal joints. Used when connecting the cable to electrical equipment, with the high-voltage conductive metal in a fully insulated and enclosed state. There are three main types of intermediate joints: (1) Butt Joint: Two identical or different cables are directly butted together, as shown in Figure (a). Schematic diagram of cable intermediate joints: (a) Butt Joint; (b) T-Joint; (c) X-Joint (2) Branch Joint: Connecting a branch cable at a point on the main cable is called a T-Joint. When two branch cables simultaneously branch off at a point on the main cable, it is called an X-Joint. T-Joints and X-Joints are shown in Figures (b) and (c). (3) Transition Joint: The connection between two cables with different insulation types (such as cross-linked polyethylene cable and oil-impregnated paper-insulated cable).
Popular Science Lesson: Cross-linked Polyethylene Insulated Cables (XLPE Insulated Cables) 2025-11-24 Cross-linked polyethylene insulated cables (XLPE cables) are widely used not only in low-voltage power supply systems below 6kV, but also in transmission and distribution line systems with voltage levels from 6kV to 500kV. The structure of XLPE cables below 6kV is basically the same as that of PVC low-voltage cables. (See diagram) Single-core cross-linked polyethylene cable structure diagram (a) Single-core cross-linked polyethylene insulated cable; (b) Single-core cross-linked polyethylene insulated steel tape armored cable; (c) Single-core cross-linked polyethylene insulated steel wire armored cable; (d) Outline diagram: 1, 8, 17 - Conductor; 2, 9, 18 - Conductor shield; 3, 10, 19 - Insulation; 4, 11, 20 - Insulation shield; 5, 12, 21 - Copper tape shield; 6, 13, 22 - Wrapping tape; 7, 16, 26 - Outer sheath; 14, 23 - Inner sheath; 15, 24 - Steel tape armor; 25 - Copper wire Three-core cross-linked polyethylene cable structure diagram: (a) Unarmored cable;(b) Steel tape armored cable;(c) Steel wire armored cable;(d) Outline diagram:1, 9, 19 - Conductor;2, 10, 20 - Conductor shield;3, 11, 21 - Insulation;4, 12, 22 - Insulation shield;5, 13, 23 - Copper tape shield;6, 14, 24 - Filler;7, 15, 25 - Wrapping tape;8, 18, 28 - Outer sheath;16, 26 - Inner sheath;17, 27 - Steel tape/steel wire armor Compared to other low-voltage plastic cables, the most significant difference in structure between 6~35kV cross-linked polyethylene (XLPE) cables is the addition of inner and outer semi-conductive shielding layers and a copper tape (wire) metal shielding layer. Both inner and outer semi-conductive shielding layers use carbon black-added XLPE material, typically 1~2mm thick, with a volume resistivity of approximately 10⁴ Ω·cm. The copper tape (wire) forms a circuit for the cable's ground fault current and provides a stable ground potential. Therefore, the ground wire of XLPE cables is led out via copper tape (wire) rather than armored steel tape, which is crucial. Cables with a conductor cross-sectional area of ​​240m² or less generally use a copper tape shielding structure; while cables with a conductor cross-sectional area greater than 240m² use a copper wire shielding structure. Representative models of 6~35kV XLPE cables include aluminum core YJLV or YJLY types, and copper core YJV or YJY types. The figure shows two typical structures of cross-linked polyethylene cables with voltage levels of 66kV and above. In addition to YJLY/V type and YJV/Y type, the representative models also include YJQ, YJLQ type, YJLW, and YJLLW type. Schematic diagram of 66~220kV cross-linked polyethylene cable structure (I) (a) Cross-sectional view; (b) Outer view 1- Conductor; 2- Inner shield; 3- Insulation; 4- Outer shield; 5- Copper wire shield; 6- Longitudinal water-blocking layer; 7- Comprehensive waterproof layer; 8- Outer sheath Schematic diagram of 66~220kV cross-linked polyethylene cable structure (II) (a) Cross-sectional view; (b) Outer shape view 1- Conductor; 2- Inner shield; 3- Insulation; 4- Outer shield; 5- Longitudinal water-blocking layer; 6- Non-magnetic metal sheath; 7- Outer sheath Compared to cables of 35kV and below, cables of 66kV and above do not use steel tape for their armor layer. Instead, they employ non-magnetic metals such as corrugated aluminum (copper, aluminum alloy, stainless steel) sheaths, which also provide excellent waterproofing. The outer sheath of the cable is generally made of PVC material, with a layer of conductive graphite coated on top. This graphite layer serves as the ground terminal, facilitating withstand voltage tests on the outer sheath.
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B8-01 Binası, 1. Aşama, Ronghao Sanayi Şehri, 2098 No. Weiyang 9. Yol, Gaoling Bölgesi, Xi'an, Çin
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