pk10赛车历史开奖走势图

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  • Cree's reference for the selection of various model identifications Cree's reference for the selection of various models' designation 1. The role of the identification plate The identification plate has the function of marking and warning. The identification plate mainly expresses its role through vision. For example: text communication, the mark is symbolic, directional, suggestive and so on. Text styles can express character, background, and meaning. Form and symbol show symbolic and constructive meaning together. The selection reference of various models of Cree models. Second, the nameplate is an information transmission medium, which has the functions of advertising and warning. Second, the material of electric signs: stainless steel signs, aluminum
    点击次数:10 次 Release time: 2019-12-27 09:27 Clicks: 10 times
  • Features of Insulating Ladder Features of Insulating Ladder (1) Non-conductive, novel appearance, elegant appearance (2) Corrosion resistance (with acid, alkali, organic solvent and salt and many other gas and liquid media corrosion. According to the requirements of actual use occasions , Economically choose to use o-benzene, m-benzene, vinyl resin as the matrix material), anti-aging, fade resistance. (3) The insulation ladder is light in weight and easy to handle. (4) Low water absorption and good flame retardancy (common flame retardant grille flame propagation rate (ASTM E-84) does not exceed 25; The flame propagation rate does not exceed 10. The oxygen index is not less than 2
    点击次数:13 次 Release time: 2019-12-26 09:53 Hits: 13 times
  • What should I pay attention to when using the climbing board? What should I pay attention to when using the climbing board? The climbing board, also known as a pedal, is used to climb a pole. The ascending board is composed of a foot board, a rope and an iron hook. 1. The conventional configuration board is 63cm in length, 8cm in width, 2.5mm in thickness, rope length: 1.9 meters, 2 meters, 2.3 meters, 2.5 meters Product carrying capacity: 150kg board has pineapple grid, which should be paid attention to when using the board ? 2. Precautions for climbing board: (1) Before using the pedal, check whether the pedal is cracked or decayed, and whether the rope is broken. (2) Pedal hook
    点击次数:24 次 Release time: 2019-12-20 14:43 Clicks: 24 times
  • Do you really use common electrical safety tools? Do you really use common electrical safety tools? Everyone in the power industry knows that the correct use of electrical safety tools is a safety line of defense to ensure personal safety. But do everyone really use safety tools? Do you really use common electrical safety tools? No.1 General rules for the use of safety equipment
    点击次数:27 次 Release time: 2019-12-20 14:38 Clicks: 27 times
  • Do you know the "identity" symbol behind the helmet color? Do you know the "identity" symbol behind the helmet color? Do you know the "identity" symbol behind the helmet color? At the power site, there are four colors of white, red, blue, and yellow helmets. Each color not only has a warning function, but also represents different meanings. Different colored hats are worn by designated personnel. See here for how to wear a helmet in four colors! Do you know the "identity" symbol behind the helmet color? Do you know the "identity" symbol behind the helmet color?
    点击次数:33 次 Release time: 2019-12-13 10:28 Clicks: 33 times
  • The inspection content of the insulation ladder ! The density of the insulation material of the insulation ladder is 1.95g / cm3; the water absorption of the insulation material is 0.40%; the tensile strength of the material is 350Mpa; ; The surface of the design load 1500N insulation parts should be smooth, free of bubbles, wrinkles or cracks, no obvious scratches and overheating marks, and the color is natural. Inspection contents of insulation ladder: Whether the function of the ladder is suitable for the job; the safety of the ladder, whether there is a lack of walking sticks or the ladder body is damaged, broken, corroded, deformed, cracked;
    点击次数:48 次 Release time: 2019-12-10 08:51 Clicks: 48 times
  • Common smart tool cabinets Common smart tool cabinets 1. Conventional smart tool cabinets, including dryer, condenser, digital display controller, temperature control upper limit 35 degrees, lower limit 25 degrees. 2. Contains compressor and digital display controller. (The function of the compressor is the same as that of the dryer + the condenser, and it is better than the combination of the two.) Several common smart tool cabinets 3. Ordinary small tables are old-style tool cabinets, and are generally in the brow position. 4. LED display (530 * 400mm), dryer + condenser (compressor), probe. Can display the temperature inside and outside the cabinet, product list and storage status inside
    点击次数:57 次 Release time: 2019-12-06 10:58 Clicks: 57 times
  • How to use electrical safety related signs correctly? What is the electrical safety logo? To prevent possible misoperations of personnel during production activities, as well as personal injury and equipment damage caused by external causes, set up safety signs. Safety signs include equipment signs, safety warning lines, etc. The color of the security logo is generally four colors: red, yellow, blue, and yellow. Generally, red indicates prohibition; blue indicates instructions, that is, regulations that people need to follow; yellow indicates warning; green indicates correct and safe information, such as emergency exits, entry from this, etc. Red prohibition sign yellow sign
    点击次数:51 次 Release time: 2019-12-06 10:37 Clicks: 51 times
  • Cree Insulated Stool Knowledge Explained Cree Insulated Stool Knowledge Explained I. Insulation stool material voltage level 1, material is FRP, there are two types of stool surface: one is a layer of insulating rubber pad on the surface of FRP stool, 3mm non-slip type, Red and green. Another 0.3 * 0.5 face, ABS injection molded. There are two types of handles: aluminum and stainless steel. 2. Withstand voltage level: Insulated stool products, the actual withstand voltage test is the same as that of the electroscope. The 0.4m test length power frequency withstand voltage can reach 100KV. More than 0.7 meters can use the voltage to 10KV,
    点击次数:69 次 Release time: 2019-11-29 11:42 Clicks: 69 times
  • Introduction to the structure of the insulating rubber sheet Introduction to the structure of the insulating rubber sheet 1. Insulating rubber pad components: The insulating rubber sheet is mainly made of rubber-type insulation materials and is made of non-polar rubber with excellent insulation properties such as NR, SBR and IIR. 2. Characteristics of insulating rubber pad: There should be no harmful irregularities on the upper and lower surfaces of the insulating pad. Harmful irregularities are one of the following characteristics: defects that damage uniformity and damage the smooth contour of the surface, such as pinholes, cracks, local bulges, cuts, inclusions of conductive foreign matter, creases, voids, bumps, corrugations, and casting marks . Harmless irregularities are surface irregularities formed during the production process. quality
    点击次数:52 次 Release time: 2019-11-28 11:31 Clicks: 52 times
  • Use range and storage method of insulation rubber pad in distribution room Use range and storage method of insulation rubber pad in distribution room Use range and storage method of insulation rubber pad in distribution room: Widely used in substations, power plants, distribution rooms, test roommates, and the field Use for live work. It should be stored in a dry and ventilated environment, away from heat sources, and more than 20cm away from the ground and walls. Avoid being contaminated by acids, alkalis and oils. Do not expose to direct sunlight. 3. 15KV Insulating Rubber Mat 1. 15KV Distribution Room Insulating Rubber Mat Overview: (1) Introduction: Strengthen the staff's insulation to the ground, a rubber mat made of special rubber. Insulating rubber mat, also known as insulating rubber mat, insulating rubber
    点击次数:67 次 Release time: 2019-11-22 17:14 Clicks: 67 times
  • How to test the high voltage electroscope? How to test the high voltage electroscope? 1. High-voltage electroscopes are generally tested every 6 months. Before the test, carefully check whether the insulation part and the glass cover of the neon lamp are intact. 2. During the power frequency AC withstand voltage test, a processing frequency of 25 kV is performed between the contact end of the electroscope and the capacitor for 1 minute. If there is no flashover discharge, the electroscope is qualified. 3. The supporting part of the electroscope, that is, the supporting device (including the insulating part, the grip part and the isolation ring between the two parts) should be tested separately, and a voltage is applied between the capacitor and the isolation ring during the test.
    点击次数:75 次 Release time: 2019-11-22 14:42 Clicks: 75 times
  • Power safety tool cabinet production, design features and precautions Power safety tool cabinet production, design features and precautions Speaking of power safety tool cabinets, we all know that power safety tool cabinets are moisture-proof, dehumidified, dust-proof, damage-proof, neat and beautiful In one. The shell of the power safety tool cabinet uses the best cold plate, adopts the art electrostatic spraying, and the cabinet door is made of high-strength tempered glass, which is elegant and beautiful in appearance. Safety tool cabinet The last time I introduced some related knowledge about tool cabinets, focusing on some performance introduction of smart tool cabinets, today I will popularize the details of safety tool cabinets: 1. Details of power safety tool cabinets
    点击次数:66 次 Release time: 2019-11-22 09:19 Hits: 66 times
  • How to buy de-icing tools De-icing tools purchase detailed introduction I. Composition of de-icing combination tools: 1 de-icing steering hook 2, de-icing hammer 3, de-icing shovel 4, de-icing axe 5, and crescent de-icing 锄 Second, the application of de-icing combination tools: 1. De-icing steering hook: can effectively remove the ice between insulators, not affected by the size of the umbrella group, can also break the insulator surface ice. 2. Deicing hammer: It can hit the surface of the insulator at a high level to cover the ice, and at the same time, it can remove the ice on the synthetic insulator. 3. Deicing shovel: It can remove ice and ice on the surface of insulators of electrical equipment at high altitudes. How to choose a de-icing tool
    点击次数:72 次 Release time: 2019-11-15 09:21 Clicks: 72 times
  • Classification of safety fences The classification of safety fences can be divided into soft fences and hard fences, and fences are divided into ordinary polypropylene high-strength wire mesh and polyester fences. Ordinary fences are calculated by meters. Generally, they are 1 meter high and the length is determined by the customer. Above one meter can also be customized. The safety fence can be divided into two categories: ordinary fence (net rope diameter 3.5mm) and polyester fence. The fence is usually equipped with a bracket. Generally a bracket is provided at about 2 meters, and it can be longer, but it is better not to exceed a distance of 5 meters. Classification 1. Barrel telescopic fence is divided into stainless steel cylinder telescopic fence and insulation cylinder.
    点击次数:59 次 Release time: 2019-11-15 08:59 Clicks: 59 times
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