The High-mast Lamp is generally refers to the new lighting device which is composed of the steel taper light pole and the high power combination lamp frame of 15 meters or above.It consists of lamp holder, internal lamp, electric rod body and basic part.Lamp head modelling can according to user requirement, surroundings, lighting need specific and definite;The interior lamps are mainly composed of floodlights and projection lamps. The light source adopts NG400 high pressure sodium lamp, and the lighting radius is 60 meters.The bar body is usually a pyramid structure, which is made of steel plate, with a height of 15 to 40 meters, which consists of two to three sections.
Material characteristics
1. Beautiful appearance, large lighting area, good lighting effect, concentrated light, uniform illumination, small glare and easy to control and repair.
2. Applicable places: city square, station, wharf, highway, stadium, overpass, etc.
3. The lamp pole is a high quality steel plate by moulding into a multi - pyramid splicing steel rod, through hot galvanizing anti-corrosion treatment.
4. The lamp frame is made of high quality stainless steel.
5. Fasteners bolts and nuts are stainless steel.
6. Light source:400W-1000W sodium lamp.
Specifications:
Height: from 18m to 50 m
High-Mast Lamps Series,High Mast Lamps,High Mast Light,High Mast Light Pole Jiangsu chengxu Electric Group Co., Ltd , https://www.chengxulighting.com
2. Choose a compound fertilizer suitable for crop growth. Potassium has a special effect on improving the quality of crops. In the case of using less potassium fertilizer, the potassium-containing compound fertilizer should be preferentially placed on cash crops.
3. Select suitable compound fertilizer for different crops of different soils. Nitric acid and phosphorus fertilizers should be used for acid soils and dry soils. Chlorophosphorus systems can be used for neutral and calcareous soils. Urea phosphorus hinges are suitable for various soils and various crops. For crops that are not suitable for chlorine, a compound fertilizer containing potassium sulfate should be used. For food crops, a compound fertilizer containing potassium chloride can be used.
4. Apply in combination with unit fertilizer. Because the compound fertilizer is relatively fixed, and the unit fertilizer is properly matched, the ratio of nitrogen, phosphorus and potassium can be adjusted to suit the requirements of different soils and different crops. 
Suit for: highway, expressway, parkway, freeway, central motorway junction, truck and bus terminals, railyards, ship docks, airports, ferry terminals, prisons, industrial and commercial sites, international borders.
Shape: round, multi-pyramidal, column form, polygonal or conical
Material:
Q345B/A572,minimum yield strength>=345n/mm2
Q235B/A36,minimum yield strength>=235n/mm2
Tolerance of Dimension: ±2%
Lighting Source: 400 W- 5000 W high pressure sodium flood light, light extension :up to 30 000 m²
Light plate: Various figure of selection ,material with hot dip galvanization steel frame
Lifting System: Lifter fixed in the inner of the pole with lifting speed of 3~5 meter per minute
Equipped e; ant ferromagnetism brake and break -proof device, manual operation applied under power cut
Electric Appliance Control Device: Electric appliance box to be the hold of the pole ,lifting operation could be 5 meter away from the pole through wire .Time control and light control could be equipped to realize full-load lighting mode and part lighting mode
Surface treatment: Hot dip galvanized Following ASTM A 123, color polyester power or any other standard by client required.
Joint of Poles: Insert mode, inner flange mode, face to face joint mode .
Design of pole: Against earthquake of 8 grade
Wind Speed: 80 Km/Hour
Welding: We has past flaw testing. Internal and external double welding makes the welding in shape
Thickness: 6 mm to 20 mm
Production Process:
Raw material test→Cutting→Molding or bending →Welding (longitudinal ) →Dimension verify→Flangewelding→Hole drilling →Calibration →Deburr →Galvanization or powder coating, Painting→Recalibration→Thread→Packaging
Packages: Our poles as normal cover by Mat or straw bale at the top and bottom ,anyway also can following by client required
How to choose the right compound fertilizer
1. Choose a compound fertilizer suitable for the soil. When using compound fertilizer, it is necessary to understand the soil conditions. According to the soil fertility status, choose the fertilizer with the appropriate nutrient content and nutrient distribution ratio.
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