Sudan, barak hydropower station on lighting system design

【 Abstract 】 Paper according to the chengdu pu ears lighting electric appliance co. , LTD provides the lamps and lanterns of product parameters, using traditional illuminance calculation method for Sudan, barak hydropower station on the each room and outdoor area intensity of illumination computation, combining with the functional requirements of each room and outdoor area and German supervision opinions of factory lighting design is improved, in order to achieve the lighting design from a single function of lighting to comfort, for the development of fine, high efficiency and energy saving. 【 Keywords 】 Lamps and lanterns product parameters; Intensity of illumination computation; Comfortable; Refinement; High efficiency and energy saving 1 introduction, barak hydropower station on a place at the crossroads of Gadaref and Kassala state in Sudan, Showak around town. About 460 kilometers from the capital Khartoum. The Gadaref Kassala, then go about 70 kilometers. Total installed capacity of 4 * 80 mw, in 220 kv voltage class. The power station construction including the main factory building, the GIS building, central control building, auxiliary buildings, DAMS, Including dam corridor and room, etc. ) 。 For power plant building room lighting indoor lighting, outdoor lighting factory platform, parking lot, crest highway and road lighting. Lighting system preliminary design 2. 1 illumination requirements ( The owner the tender documents) Roads and parking lot 15 lx cable floor corridor, shaft, tunnel, 50 lx outdoor building corridor, staircase, lounge, warehouse 100 lx rooms and fitting rooms, turbine and generator floor, device, battery room, machine workshop, transformer rooms 250 lx control room, electronic equipment room, office, 500 lx2 electrical/electronics workshop. 2 lighting distribution box box structure and connection design for enclosed structure, indoor enclosure 1. 5 mm thick quality electrolytic plate, the box surface using electrostatic spraying epoxy resin; A full set of stainless steel ( And distribution box is equipped with anti-theft device) 。 Every mark loop back to qualify names, outdoor lighting box shell protection grade reaches IP65, indoor lighting box enclosure protection class is IP54. Box is equipped with a neutral grounding bus terminal, bus terminal and electrical installation orbit, orbit can lift adjustment. Are wiring box body up and down and around to knock down hole. Box body is equipped with cable glen, neutral busbar and grounding bus terminal maximum of 35 mm * 2 wires. Lighting distribution box circuit breaker interchangeable parts. 2. Three important regional selection and arrangement of lamps and lanterns installation according to the structure and function of the drainage gallery and machine shop within the choose single or double pipe tube dust waterproof fluorescent lamp, suction roof installation; Generator layer choose factory lamp ( Metal halide lamp) With 1 rice mill derrick, base through specialized fixture is fixed by bolts on the ceiling of the steel beam; With round corridor absorb dome light, Energy-saving lamps) , suction installation; Prayer rooms, meeting rooms and other rooms are set square condole top, choose three pipe embedded fluorescent lamp, embedded into the ceiling installation. 3 3 illumination calculation. 1 illumination method to calculate the intensity of illumination computation USES 'utilization coefficient method', calculation formula is: E = FNukSZ, E for the average illuminance ( lx) And for the single lamp luminous flux (F lm) , N is number of lamps and lanterns, u for utilization coefficient, K for maintenance coefficient, S room area, Z for minimum illumination coefficient value. Single lamp luminous flux coefficient F, u provided by the manufacturer, the number in the N according to the preliminary layout arrangement, S, according to preliminary arrangement on measurement, maintenance coefficient K according to 'DL/T5140 - power plant lighting design specification 2501 'table 1 choice, according to minimum illumination coefficient value Z' DL/T5140 - power plant lighting design specification 2501 'where the two choices. 4 conclusion according to the calculation results show that the drainage gallery, machine shop, generators, corridor, hall, prayer room, conference room, bathroom illumination calculation value is meet the requirements, the preliminary arrangement of illuminator is meet the requirements of illumination. If the calculated intensity of illumination calculation results did not meet the requirements of specification and the owner, but by increasing the number of lamps and lanterns, reduce or replace high-power lamps and lanterns of lamps and lanterns decorate spacing to improve the entire lighting system design, make the whole lighting system to achieve the optimal. 【 Reference 】 【 1 】 Hydropower station, mechanical and electrical design manual drawing board. Hydropower station, mechanical and electrical design manual [ M] 。 Beijing: water conservancy electric power press, 1989. 【 2 】 DL / T5140 - 2001 power plant lighting design specification [ S] 。 Author: Zheng Lan units: guizhou university for nationalities