Metal shielded control cables are an important measure to attenuate and prevent electrical interference. Including the total shielding of the core, sub-shield, and double-layer type total shielding. The choice of metal shielding type of control cable should be based on the strength of the possible impact of electrical interference, taking into account the comprehensive measures to suppress interference to meet the requirements of reducing interference and overvoltage. The higher the requirements for the anti-interference effect, the greater the corresponding investment. Should be used steel belt armor, steel wire braid total shielding, the price of the cable increased by about 10% ~ 20%.
INFORMATION
Welcome to the ZMS CABLE information blog, here is the cable industry knowledge sharing and technology popularization of the professional world. In this section, we focus on cable technology, product applications, and industry knowledge, carefully crafting a series of easy-to-understand and practical content, to provide readers with authoritative technical support and comprehensive industry interpretation.
Selection Of Cable Lines And Cable Cross-Section
Ⅰ. Cable lines in the mine underground due to space constraints and safety needs, in addition to the rack line motor car, are used cable lines
Power cables can be divided into rubber-insulated cables, plastic-insulated cables, and oil-impregnated paper-insulated cables according to the insulation material. At present, oil-impregnated paper-insulated cables are rarely used, so do not speak.
The Droplet Movement And Ice-Covering Characteristics Of The Compound Insulator DC Electric Field
Compound insulator icing has always been a severe problem in the safe operation of my country’s power grid transmission line. It can not only cause the mechanical overload and collapse of the transmission lines and the tower but also cause the ice and flashing collar of the insulator string of the transmission line. In response to the impact of covering the power of power grid transmission lines, domestic and foreign scholars have done a lot of research.
What are The Considerations of Wire and Cable Storage and Transportation?
Storage and transportation of wire and cable products are two very important aspects. If the storage and transportation methods are not appropriate, the quality of wire and cable products can cause damage and affect the safety of use. So, in the storage and transportation of cable products, what matters need our attention?
Carbon Fiber Cable Construction Typical Defects And Operational Considerations
The full name of the carbon fiber wire is carbon fiber composite core aluminum stranded wire (ACCC), the wire from the beginning of this century has only been used for a relatively short period of more than ten years, there is a certain amount of experience in the application. Carbon fiber wire has high strength, lightweight, high modulus of elasticity, small coefficient of linear expansion, small arc sag, small line loss, large capacity (allowing high temperature), corrosion resistance, long service life, and other characteristics. Especially suitable for coastal, mining areas corrosion intensity, high fouling strength, the wire is easy to dance the use of the environment.
7 Common Faults In 10KV Overhead Cable Transmission Lines, As Well As The Causes Of Faults And Preventive Measures
10KV overhead cable transmission line common faults are 7 kinds
1 Single-phase grounding fault
Single-phase grounding is the most common fault in the power distribution system, mostly occurring in wet and rainy weather. Single-phase grounding not only affects the normal power supply of users, but also Hunan Sunshine Electronics School maintenance experts believe that: it may produce overvoltage, burn equipment, and even cause an inter-phase short circuit and expand the accident.
Design, Production, and Installation of Cable Termination and Joints for 10kv Cable Projects
1 Scope of application
It is suitable for the installation of 10kV XLPE cable cold shrink termination and joints in distribution network projects.
A Brief Summary Of “Three Spans” Of Transmission And Distribution Lines
With the continuous upgrading and construction of power grids and transportation infrastructure, transmission lines “three across” related issues are becoming more frequent. Such as improper handling, which will likely lead to significant public safety and grid security incidents. So for the transmission lines “three across” section, construction standards and other aspects must be strictly controlled. This paper provides a summary of this issue.
The Production Process and Selection of Cross-Linked Insulated Cables
Although there are many varieties of cross-linked insulation, they are mainly divided into two categories: physical and chemical cross-linking. The quality of the insulation is identical, so in the national standard GBl2706-91, there is no distinction between the cross-linking methods used.
Cross-linked insulation has been dominant in power cables, replacing oil-paper insulation, and gradually replacing PVC plastic insulation. Although there are many varieties of cross-linked insulation, it is mainly divided into two categories: physical and chemical cross-linking, and its insulation quality is completely consistent. Therefore, in the national standard GBl2706-91, no distinction is made as to which cross-linking method is used.
Is It Necessary To Use An Aluminum Alloy Cable With Special Cable Terminal Blocks For An Aluminum Alloy?
With the development of the cable industry, the advantages of copper-core cable are more. Copper-core cables occupy an absolute advantage over aluminum-core cables in the cable market. However, the high price of copper-core cable also caused an increase in production costs, and also bad construction. The aluminum-core cable as a cable industry “foreign army” emerged, in the market’s favor.