Tag Archive for: solar street light pole

Solar Street Light Pole Design Guidelines & Details – City and County

The Solar street light pole is usually made of steel, which is characterized by beautiful, durable, solid, easy to make various shapes, simple processing technology, and high mechanical strength.

At present, more and more farms, courtyards, rural roads, and urban communities have been installed with solar street lights. Because the solar street lamps are exposed outdoors for a long time, the performance of the lamp pole itself must pass the customs, otherwise, it is likely to be rusted in the sun and rain, which will not only affect the aesthetics but also increase its risk. Below are some basic requirements for supporting the poles commonly used to support solar street lamps?

The cross-sectional shapes of commonly used tapered light poles are round and hexagonal, and some also use octagonal shapes. The taper is mostly 1:90 and 1: 100. and the wall thickness is generally 3-5mm according to the stress of the lamp pole.

The working environment of the solar street lamp is outdoor, so the requirements for supporting the lamp post are better. To prevent the lamp post from rusting and corroding and reducing the structural strength, the lamp post must be anti-corrosive.

solar light project

The anti-corrosion method is mainly to take some preventive measures against the cause of rust. The anti-corrosion method should avoid or slow down the effects of humidity, oxidation, high temperature, chloride, and other factors. The common methods are as follows:

  1. Plastic spraying treatment: spray plastic treatment after hot-dip galvanizing.  The plastic spraying powder should be selected for outdoor use, and the coating should not be peeled or cracked. Spray plastic treatment can improve the corrosion resistance of the steel pole, and greatly improve the beauty and decoration of the lamp pole. The color can also be a variety of choices.
  2. Hot-dip galvanizing: The process and method of immersing the pre-processed parts in the molten zinc solution to form a zinc and zinc-iron alloy coating on the surface. The thickness of the zinc layer is 65-90um. The zinc layer of the galvanized parts should be uniform, smooth, free of burrs, drippings, and excess agglomeration. The zinc layer should be firmly combined with the steel rod, and the zinc layer should not peel off or bulge.

Due to the solar street light controller and other electrical parts are installed in the lamp pole (some battery is installed inside a light pole), so you also must pay attention to a waterproof light pole and anti-theft performance, prevent the rain into the lamp post cause electrical failure, maintenance to avoid the use of conventional tools can open (e.g., hex socket bolts, pliers, etc.), prevent theft or damage.
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solar street light pole

Inspection and acceptance standard of solar street light pole

Requirements for material and process

  1. The main bar shall be formed in one time, and the welding seam of the steel bar (Q235) shall be flat and smooth, and the flatness error between the convex part of the welding seam of the whole bar and the bar shall not be greater than ± 1mm. (method to detect the error between the protruding part of the welding seam of the lamp pole and the adjacent flat place with the thickness gauge of the lamp pole.) The welding mode of lamp pole is automatic sub-arc welding, and the dye Detection Inspection meets the requirements of international standard GB / t3323-1989111. The lamp pole shall be fixed by threading nails and jacking screws. (visual inspection)

Solar Street Light pole workmanship

  1. The anti-corrosion treatment is hot-dip galvanizing, and the surface of the galvanizing layer is required to be smooth and beautiful with consistent luster. There is no wrinkle, sagging, zinc tumor, peeling, spot, and defects on the internal and external surfaces. (the previous visual inspection) the thickness of the zinc layer is more than 85um (the thickness of the zinc layer is tested with a lamp post thickness gauge). The adhesion of the zinc layer shall meet the gb2694-98 standard to ensure that it will not fade for 8 years. The wind resistance of lamp-post shall be designed as per 36.9m/s. The anti-corrosion life of the lamp pole is more than 20 years. (the manufacturer shall provide relevant inspection reports of some national institutions)
  2. The thickness of plastic spraying on the surface of lamp pole shall be no less than 100um, the adhesion shall reach gb9286-880, the surface shall be smooth: the hardness shall be no less than 2h, the outdoor weather-resistant material shall be adopted, and the plastic spraying material shall be all polyester plastic powder. (hardness of the material is indicated by indentation diameter)
  3. The lamp pole process and acceptance standards shall be in accordance with the national standards. The design factor is 1.8. The design life of the lamp pole is more than 20 years. (inspection report provided by the manufacturer)
  4. The lamp pole shall be designed to facilitate the wire penetration and the hand hole door shall be in the form of backpack door. (visual inspection) the pole door must be flat and smooth, and the flatness error with this pole shall not be greater than ± 1mm (the flatness shall be detected by the pole detector). The interchangeability between the same pole door and the door shall be good, so as to meet the requirements of anti-theft and rainproof. After the cutting of the bar and door, the local reinforcement treatment is carried out to basically achieve the strength of the original integral bar. (change the small doors of two poles to see interchangeability)
  5. Appearance color: according to the color of the contract. (visual inspection)

The technical standard of solar street light pole:
Executive standard

  1. GB2694-88 quality of hot-dip galvanizing
  2. Gb10854-89 steel structure welding boundary dimension
  3. Gb77-88 carbon structural steel
  4. Gb1591-93 low-density structural steel technical specifications
  5. Gb2519-88 hot rolling steel plate including strip steel variety
  6. DL / t646-98 specification for manufacturing steel pole of transmission line
  7. Aasht01994 light pole, high pole and traffic signal pole

Technical parameters of solar street light pole:

  1. Taper: 12:1000
  2. Straightness deviation: < 0.2%
  3. Length deviation: < 5nlm
  4. Offset deviation: + 2mm
  5. Twist degree of lamp body: < 5 °
  6. Straightness of rod: < 1mm
  7. Bending arm-twist: < 2 °
  8. Offset deviation of bent arm part: < 15 °
  9. Perpendicularity deviation between flange and rod: < 1 °
  10. Deviation of flange welding position: < 2mm
  11. The thickness of zinc coating: ≥ 85um
  12. The thickness of plastic spraying on the surface of the lamp pole: ≥ 100um
  13. Design coefficient: 1.8
  14. Wind resistance: 36.9m/s

Technical test standard of solar street light pole:

  1. Adhesion test: the cross mark is vertically adhered with special adhesive tape for 12 times without peeling.
  2. Thickness test of the galvanized layer: take any 30 points, and the arithmetic mean value is greater than 86um.
  3. Salt spray resistance test: 5% NaCl, 35 ° C, 96 hours without yellow rust.
  4. Thickness uniformity test of zinc coating, copper sulfate immersion test for 6 times without copper hanging.

Technical parameters of polyester powder for lamp pole and lamp:

  1. State in the container: uniform color, loose without caking
  2. Sieve residue (88 um%): < 0.5
  3. Curing conditions: 180-200 ± 2 ° C for 10-20 minutes
  4. Appearance: flat and smooth, with slight anti orange wrinkle
  5. Film thickness: 100um
  6. Color: meet the standard color board and allowable color deviation range determined by the supplier and the demander
  7. Luster: high light ≥ 85%, half-light 51-84%, flat light 50-15%, no light < 14%
  8. Impact strength: 50kg / C ㎡
  9. Pencil hardness ≥ 2H (no scratch)
  10. Adhesion (cross-cut method): level 0
  11. Bending test (tapered shaft): 3mm pass
  12. Cupping test ≥ 6mm

Technical parameters of polyester powder for lamp pole and lamp:

  1. 1.State in the container: uniform color, loose without caking
  2. Sieve residue (88 um%): < 0.5
  3. Curing conditions: 180-200 ± 2 ° C for 10-20 minutes
  4. Appearance: flat and smooth, with slight anti orange wrinkle
  5. Color: meet the standard color board and allowable color deviation range determined by the supplier and the demander
  6. Luster: high light ≥ 85%, half-light 51-84%, flat light 50-15%, no light < 14%
  7. Impact strength: 50kg / C ㎡
  8. Pencil hardness ≥ 2H (no scratch)
  9. Adhesion (cross-cut method): level 0
  10. Bending test (tapered shaft): 3mm pass
  11. Cupping test ≥ 6mm

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