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  • 2016-09-29
    Technical Requirements for Assembly of Steel Pipe Components
    Technical Requirements for Assembly of Steel Pipe Components Steel tube assembly should be made of special molds, assembled parts as much as possible with the versatility and interchangeability. On the volume of small or complex structure does not have Interchange conditions of the components, the production of good marks left to record for transportation, installation and other damage to the process of re-processing used. The inclination of the flange facing the main axis, the allowable deviation of the displacement of the connecting plate and the allowable deviation of the displacement of the connecting plate shall meet the requirements. Technical requirements for welding of steel rods Steel pipe welding in addition to meet the design drawings and DL / T 646 transmission line steel pipe manufacturing technology requirements, should also meet the following requirements: A) Where automatic submerged arc welding, such as steel
  • 2016-09-26
    Traffic Signal Lighting Classification and Function
    Traffic Signal Lighting classification and function Traffic lights traffic signals an important part, is the basic language of road traffic. Traffic lights from red (to indicate that traffic), green (represented allows passage), yellow (TableShown warning) components. Divided into: motor vehicle lights, non-motor vehicle lights, crosswalk lights, lane lights, directional lights, flashing warning lights, road and railway level crossing lights. Traffic lights from red (to indicate that traffic), green (represented allows passage), yellow (warning indicates) components. Divided into: motor vehicle lights, non-motor vehicle lights, crosswalk lights, lane lights, directional lights, flashing warning lights, road and railway level crossing lights. Widely used in highway intersections, corners, bridges, there are security risks of dangerous sections, directing the driver or pedestrian traffic, and promote the smooth flow of traffic and avoid traffic accidents and accidents. Color lights The first time only the red and green colors, and later improved after the increase of a yellow light, red light means stop, yellow indicates ready, a green light indicates traffic. The reason why the use of these thre
  • 2016-09-18
    Lighting Pole Maintenance and Precautions
    Lighting Pole Maintenance and Precautions Next to the road which stud the figure is very common, it can be said for the charm of the city adding much luster. but Well-known street, probably because of some reasons not to serve the people, including damage to the lamp, poles broken, how can we ensure that it can be longer for our services? First lighting maintenance personnel have qualification certificates for posts, lampposts maintenance personnel to deal with lampposts lamps light electrical appliances, cables and other equipment to conduct a comprehensive inspection seriously, the use of temporary power line is energized when the power plug repair Medallions connection, for safety reasons, if necessary dissecting loaded shock protector to prevent electric shock. At the same time maintenance staff to deal with the following issues for regular maintenance:
  • 2016-09-14
    Substation Structures' Classification and overview
    Substation Structure is to contact the user of the intermediate links and transformation and Power plants distribution of electric energy plays a role. Classification of substation the following categories: 1. In accordance with the status and role of substations in the power system can be divided (1) the system hub substation. Hub substation is located in the hub points in the power system, its voltage is the system the highest transmission voltage, the current voltage level has 220kv, 330kV (Northwest power grid only) and 500kv, hub substation connected into the ring, after the station blackout, it will cause the system splitting and even paralysis of the entire system, so the hub substation high reliability requirements of. Hub substation main transformer capacity, wide supply range. (2) regional primary stations. Area substation is located in a hub point area network, is the main network and transmission areas receiving end substation connected, the task is directly affected by the power from the main grid, power supply to this area. Full stop after power failure, which can cause the collapse of the regional power grid, power supply affects the entire region. Voltage level commonly used 220kv or 330kv. A large area substation main transformer capacity, the number of outgoing circuit more, the reliability of the power supply requirements are relatively high. (3) regional secondary substation. Region by the regional primary substation secondary substation by power directly to the load power supply
  • 2016-09-12
    The production process of light pole
    The production process of light pole can be divided into the following steps: (1) cutting → (2) Bending → (3) welding → (4) repair grinding → (5) Plastic → (6) Qi head → (7) mounted floor → (8) welding floor → (9) to open the door → (10) Electric welding gate strip bar (bottom lock → (11) bent fork → (12) galvanized → (13) spray → (14) of the total seizure → (15) delivery Second, each step to French: 1. Cutting 1.1 First cut before cutting adjust the inclination of the machine with the required vertical scissors ruler wanted character.
  • 2016-09-09
    What is the Wind Power principle?
    New Energy Structure include Wind Power and Solar Power. Wind Power principle is converting wind energy into mechanical energy of power machinery, also known as the windmill. Broadly speaking,It is a sun as a heat source to heat the atmosphere by the engine working medium. Wind power is the use of natural energy. Relative to diesel power generation is much better. However, if the emergency to use it, or not as good as diesel generators. Wind power can not be considered as backup power, but long-term use. Wind power is the use of wind driven windmill blades rotate, then the rotational speed increase through the growth machine, prompting generators. According to the current versions of the windmill, which is about three meters per second wind speed (micro-The extent of the wind), it can generate electricity. Wind power is forming a boom in the world, because wind power is no fuel problem, it does not produce radiation or air pollution. Wind power is very popular in Finland, Denmark and other countries; China is also a strong proponent of the western region. High efficiency of small wind power systems, Wind Po
  • 2016-09-07
    Application of Transmission Line in urban Transmission Line
    In recent years, due to the rapid development of urban construction, the rapid increase in electricity load, power supply network can not meet the needs of the development of the electricity load, the city is bound to create a new high-voltage lines, the original city network lines for Rehabilitation. Traditional tower, large area, and the modern urban environment modeling and uncoordinated. Using expensive high-voltage cables, the use of reinforced concrete poles, its longitudinal, circumferential crack problem has been not well resolved. Using circular or polygonal cross-section tapering steel rod type, simple structure, the force is clear, easy manufacturing, construction convenient, safe and reliable operation, less maintenance. Cheng Jiang change - Rotary big to 110 kV Transmission Line in Guangdong Meixian new town planning and urban areas, a total length of 5.96 km, construction difficult, tight schedule requirements. Meizhou Power Supply Bureau in the construction design of the project in order to meet the urban planning, beautify the urban environment, according to the actual situation, this project uses vertically aligned single-loop steel pole, cross arm against the side of the driveway, along with urban planning to spend erection. 1 Transmission Line design ideas Tower design is overhead transmission line project an important part of the design, which directly affects the safe operation of power transmission lines and cost. According to statistics, 37% of the tower cost accounting Get Line Project Cost body. In Transmission Line Project, the share of the total number of straight tower towers generally share reached 80%, the cost of the main project has a great impact, and the longer the line, the effect is more obvious. Accordingly, under the "overhead transmission line steel pole design technology" provides, in
  • 2015-10-21
    Power protection against rust steel rod do
    Power steel rod rust methods are there? Many power rust steel bar method, briefly as follows: where is the power with anti-rust paint steel bar most popular and most commonly used solutions. 1. If the power to change the composition of steel rod metal, increasing copper, chromium or nickel and other alloying elements; 2. The use of metal plating protection, such as electroplating or hot-dip galvanizing and other methods; 3. treatment with chemical oxidation power steel rod protection, such as phosphate treatment, the upcoming steel immersion solution containing hydrogen phosphate, iron phosphate and manganese hydrogen phosphate, the resulting iron phosphate and manganese phosphate insoluble protective film; 4. Non-metallic corrosion protection layer, such as coatings, plastics and other metal surface will power steel rod protected, so that from the media
  • 2022-01-24
    East and West, light up China
    How far is the distance between the mountain and the sea? It took more than 30 years to build it The longest span energy transfer project in human history; It took more than 30 years to build it The largest transmission network in the world. West to East power transmission East and West Light up China Mountains and seas are far and wide, and there are stars and rivers on earth. Someone will come across the mountain and across the sea for you.
  • 2022-01-24
    East and West, light up China
    How far is the distance between the mountain and the sea? It took more than 30 years to build it The longest span energy transfer project in human history; It took more than 30 years to build it The largest transmission network in the world. West to East power transmission East and West Light up China Mountains and seas are far and wide, and there are stars and rivers on earth. Someone will come across the mountain and across the sea for you.
  • 2022-01-05
    "Wanjiadenghuo south net love" New Year's debut! Show the new atmosphere with a new image
    "I saw your 'Wanjiadenghuo Nanwang deep love' on TV!" "Your film is great. Everyone is so moved!" "Have you read today's newspaper? There's your company." -- During the new year's day in 2022, our friends have received surprise calls. From January 1, we can see the affectionate advertisement of "Wanjiadenghuo south network love" in the important time of mainstream TV stations in the five provinces and regions in the South and the main pages of the party newspaper: from the energy flow of Colorful Yunnan to the call story of Shenzhen first line demonstration area; From the bright lights in the Great Bay area of Guangdong, Hong Kong and Macao to the vitality of Hainan free trade port; From the warm lights of Bagui to the vitality of colorful Guizhou; "West to East power transmission" brings "east to West... Different wonderful stories and the same" deep love of the South Network ". This is a "composition on the same topic" about "thousands of lights". According to the strategy of "unified planning, respective creation, South Grid height and local narration", China Southern Power Grid Corporation has established an internal and external expert team to plan as a whole, adhere to high-standard unified strategy, unified standard version and unified quality control, and guide creation; All units give full play to their creativity and tell in locally recognized contents and ways. This communication mainly shows the story of the company implementing the major decisions and arrangements of the Party Central Committee and serving the high-quality economic and social development of the five provinces and regions in the south. It vividly combines the scenes of integrating into and serving the local, highlights the characteristics of the south network, audience resonance and local recognition, and shows the same deep feelings of the South Network with different highlights.
  • 2021-11-29
    The company steelpole five quality "protectors" for steel rod manufacturing.
    "Person" : in every production link set up full-time quality management and quality inspection personnel, for management personnel at all levels, engineer, measurers through conducting regular education and training, and operators in production line, professional and technical personnel at all levels shall practise a system of prize and heavy penalties at the same time, to ensure the quality of products meet the national standards and design requirements. "Machine" : all selected international and domestic advanced machinery and equipment, the establishment of advanced pipe tower components processing production line, and equipped with a full set of quality testing equipment. "Material" : all raw materials are selected from the designated enterprises as procurement suppliers, and according to the requirements of ISO9000 system to establish their own material supply network. "Law" : The enterprise management and the methods of production, testing, every step strictly according to the technological requirements, earnestly implement the quality control procedures, rewards and punishment is established strict quality target management responsibility system and project manager responsibility system, formed a strict quality constraint mechanism and reliable quality assurance system, make the product items are qualified rate of 99% or more, The combination concentric hole rate reaches 100%, and the product quality is among the best in the same industry in China. "Field" : refers to the production environment and work site, the implementation of "clean, neat, orderly, maintain" system of operation procedures, to ensure that the production environment and work site clearly marked, neat, safe operation, strengthen labor protection, to ensure smooth production.
  • 2015-10-21
    The basic form of the deformed steel bar
    The basic form of electricity deformed steel bar have? Power steel bar suffered a variety of external forces, thus deformed steel bar member general will have a more complex form. But to sum up, deformed steel bar can be divided into the following four basic forms. First, when the power axial tension or axial compression steel rod when straight steel rod by a pair of equal and opposite directions, external force action line and heavy steel pole member axis table, the main deformation is elongated or shortened lengths. The former is called axial tension, the latter known as axial compression. Such as a simple truss steel rod member, their deformation, deformation belong to this basic form. Second, the power cut when the straight steel rod steel bar by a pair of equal and opposite directions, vertical and in close proximity when the external force, which is adjacent to the main line of action of the deformation axis of inertia with steel rod cross-section along the direction of the external force relative error occurred This form is called dynamic shear deformation. Third, the power to reverse when the straight steel rod steel bar by a pair of equal and opposite, both with the couple when acting surface perpendicular to the axis of the steering role of steel bar. Straight impeach any two of the cross section relative rotation about an axis, said such deformation form To reverse. Fourth, the electricity when bent steel rod straight steel rod by a pair of equal size, steering the contrary, the role of the role when the couple faces the longitudinal plane of symmetry coincides steel bar, any two straight steel rod cross-section will be about perpendicular to the longitudinal plane of symmetry pumping relative rotation, the axis of the straight steel rod into a curve. This form is called bending deformation overcast
  • 2015-10-21
    WB36 steel pipe processing performance
    WB36 steel pipe processing performance 1: WB36 casting of steel pipe (castability): refers to a method of casting metal material can be used to obtain performance qualified castings. Casting mainly including liquidity, shrinkage and segregation. Liquidity refers to the ability of the liquid metal filled with mold, shrinkage refers to the solidification degree of volume shrinkage, segregation refers to the metal cooling and solidification process, due to differences in crystallization has caused metal chemical composition and internal organization of inhomogeneity . 2: WB36 steel pipe malleable: refers to the metal when the pressure processing, can change shape without causing performance crack. It is included in the hot or cold state can be forging, rolling, drawing, extrusion and other processing. Good or bad malleable metal and chemical composition of the material. 3: WB36 steel pipe machinability (machinability, machinability): refers to a metal cutting tool material is qualified to become a workpiece ease. After the cutting of the common good or bad machining the workpiece surface roughness, cutting speed and the degree of wear of the tool allows to measure. It is the chemical composition, mechanical properties, thermal properties and the extent of work hardening and other metal materials and many other factors. Hardness and toughness is usually used for good or bad machinability approximately judgment. Generally speaking, the higher the hardness of the metal material more difficult to cut, the hardness is not high, but the toughness, cutting is also more difficult. 4: welding (weldability): refers to the metal material of the welding process to adapt performance. Mainly refers to the welding process under certain conditions, the degree of difficulty to obtain high-quality welded joints. It includes two aspects: First, the sensitivity of binding properties, that is, under certain welding conditions, some of the metal to form a weld def
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