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About high lamp ballast wind street light of life

High lamp ballasts in road lighting and indoor lighting engineering are used by big basin, : it is also one of the devices that consume energy. From mercury zhuang high lamp and ballast used in high pressure sodium light energy accounts for about 12% of the light source power with matching left and right sides, be town



high lamp' Light, generally refers to more than 15 meters steel conical light pole and high-power modular fixtures are composed of new type of lighting. 】

ballast in road lighting project' City and road lighting engineering contracting enterprise qualification is divided into primary, secondary and tertiary. 】 And are used by big basin, indoor lighting engineering: it is also one of the devices that consume energy. From mercury high lamp and high pressure sodium zhuang' Sodium is a kind of metal elements in the periodic table is located in the third period, the first IA in the family, is a representative of the alkali metal elements, texture soft, can react with water to generate sodium hydroxide, release hydrogen, chemical properties more lively. 】 High lamp with ballast energy accounts for about 12% of the light source power with matching left and right sides, be ballast soft clear consumption of electrical energy is converted to the form of heat from the surrounding air or padding out, such as medium. At the same time also make raise the temperature of ballast itself. The heat produced in the ballast in the running process, the part of the surroundings, via the medium of heating the ballast itself, when the heat generated by the unit time and per unit time equals the heat spread out, the ballast reach a state of thermal stability. Ballast to achieve thermal stability state, its ministries temperature has a prescribed limit. The temperature limit, generally represented by temperature rise. Ballast is coil temperature rise. The international electrotechnical commission ( The international electrotechnical commission ( IEC) Was founded in 1906, has a history of 111 years to 2017 years. 】 Recommendation 'high-pressure mercury vapor high lamp ballast' ( Publication no. 262, 1969, 2 JVT and one. In 74, revised in 1976) The third day! 2, table bang: the temperature tag in the ballast, the temperature rise under the rated voltage of 55 t & quot; , 'under the rated temperature ballast life

10 years '. China's national standard 'low voltage apparatus 【 Low-voltage electrical appliances is a kind of can according to the signal and the requirements of the outside world, either manually or automatically connect and disconnect the circuit, in order to realize the circuit or non-electric object switching, control, protection, detection, transformation and adjustment of components or equipment. 】 Basic standards) (

G81497- - 79). The performance requirements ( 2) Limit allowed temperature table 5, the limit of low voltage electrical components allow temperature 'to adopt A long-term work week insulation of wire coil temperature rise of the insulation level for' ℃, measured by the resistance method. Resistance method was used to measure the coil temperature rise, is essentially the average temperature rise of the coil. To head the vertical installation of the ballast, its temperature is high, is in the direction of the coil height 70% ^. 75%, while the former domestic ballasts are marked not allowed temperature rise and the status of the production technology of the ballast, silicon steel sheet The silicon steel sheet, English name is silicon lamination, it is a kind of low carbon ferrosilicon soft magnetic alloys, general silicon content is 0. Five to four. 5%. 】 Such as the selection of reality that domestically produced all kinds of insulation of wire coil allowed to limit temperature rise of the ballast USES the international standard of '℃ advisable, to ensure that the ballast has a certain life span. Some ballast factory of enterprise standard prescribed 'allow temperature 659 c & quot; 。 National standards GB1094 - - 71 in the insulation class of transformer coil temperature rise limit A 600 c, transformer load is determined by the user, and the load is variable, ballast load, as long as the voltage stability in 220 v, is at full capacity, and when the voltage is higher than 220 v, and when the working voltage of gas discharge light, low ( As the new growing light bulbs) Overload, ballast, so ballast application value of coil temperature rise

55 ℃ advisable.

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