What Is A High Pole Light?

1. Brief Introduction

High-pole light is generally a new type of lighting device consisting of a steel conical pole and a high-power combined light frame over 15 meters.

It is composed of lamp head, internal lamps and lanterns, pole body and foundation parts.

The shape of the lamp head can be determined according to user requirements, the surrounding environment, lighting needs.

Internal lamps and lanterns are mostly composed of floodlights and floodlights, and the light source adopts NG400 high-pressure sodium lamp, with a lighting radius of 60 meters.

The pole is generally a prismatic conical monolithic structure, made of rolled steel plate, with a height of 15-40 meters, mostly composed of two to three sections.

2. Configuration

(1) light pole for eight-pronged, twelve-pronged, eighteen-pronged conical pole, by the high-strength high-quality steel plate by cutting, bending, automatic welding forming.

The general height of 25, 30, 35, 40 and other specifications, the design of the maximum wind resistance up to 60 m / s, each specification consists of 3 to 4 sections plugged together.

With flange steel chassis, diameter 1 m to 1.2 m, 30 mm to 40 mm thick.

(2) Functionality is mainly frame structure, but also decorative material is mainly steel through, steel pipe, light pole, light plate with hot dip zinc treatment.

(3) electric lifting system consists of electric motor, winch, three groups of hot dipped galvanized control wire rope and cable, etc..

The light pole is installed inside the body, and the lifting speed is 3 to 5 meters per minute.

(4) The guiding and unloading system is composed of guiding wheel and guiding arm to ensure that the lamp panel will not move laterally during the lifting process, and to ensure that the lamp panel will automatically fall off and be locked by the hook when the panel is in place.

(5) Lighting electrical system with 6-24 400w-1000w metal halide (white light), light projection, flood lighting, computer time controller can automatically control the time of switching lights and partial lighting or full lighting.

(6) Lightning protection system: 1.5m long lightning rod is installed on the top of the lamp, and 1 1m long grounding wire is installed on the underground foundation and welded with the underground bolt.

3. Applicable places

The use range of high pole light: city square, station, wharf, freight yard, highway, stadium, overpass.

4.Classification

Generally can be divided into lifting type and non-lifting type.

Lift type main pole height is generally more than 18 meters, electric lift operation is convenient, the light plate up to the working position, can automatically the plate automatically off, hanging ditch, wire rope unloading and.

Lifting type high pole light set manual and electric two kinds of lifting control, so that the light plate can be safely and reliably lowered to 2.5 meters from the ground, convenient maintenance work.

The length of the manual remote control device lead wire is 10 meters, the operator is at 5 meters to remote control the lifting and lowering of the light panel, which can ensure the personal safety of the operator.

When the light panel is lowered to the lowest position, one end of the cable is inserted into the socket of the electrical control system, and the other end is inserted into the junction box on the light panel, so that the light panel can be powered directly and the lamps can be serviced.

The sealing level of all the lamps and lanterns is IP65 international standard to prevent the immersion of dust and rainwater and to ensure the service life of the bulbs.

The material of the luminaire is generally made of aluminum alloy plate and stainless steel with good corrosion resistance.

We usually say that the high-pole lights, in fact, according to the use is very different, according to the different use of the occasion of the classification of high-pole lights and called different.

For example, the wharf is called wharf high pole light, the square is called square high pole light, named after the port high pole light, airport high pole light, explosion-proof high pole light, stainless steel high pole light and so on.

Usually think more than 15 meters of street light pole, it is called high pole light, 15-40 meters ranging, commonly used is 15 meters, 18 meters, 20 meters, 25 meters, 30 meters of these five specifications most common.

Others are generally customer requirements to design a specific height, this is what we often say by the height of the high pole lights.

5. Lifting principle

In the rectangular inner cavity at the bottom of the lift type high pole light, in addition to the installation of the electrical control system also installs electric motors and other lifting systems.

The electrical control system is installed inside the pole, which can avoid the failure of the lifting movement due to the harsh outdoor environment.

Various circuit overload protection devices are provided in the electrical control system.

The conductor of the circuit in the system is widely used copper-based silver plating to ensure good contact of the electrical connection.

The lifting system of the elevated high-pole light is to drive the lifting of the light panel through the motor, (electromagnetic brake type) worm gear reducer, safety coupling, main steel wire rope, vice steel wire rope, rope splitter and dynamic pulley set and other components.

The worm gear reducer has strong self-locking ability, compact transmission and large transmission ratio. In order to reduce the worm gear and worm gear ratio and reduce the rising torque, a set of dynamic pulley is especially added to make the lifting speed of the lamp panel less than 0.2m/s.

The main steel wire rope is connected to the vice steel wire rope of the lamp panel through the rope splitter, which can avoid the winding of the vice steel wire due to the stretching of the main steel wire.

The main and vice steel wire ropes are all made of high-strength corrosion-resistant 6*19 non-rotating galvanized steel wire rope. Lifting pulley set are hot-dip galvanized A3 steel bracket, stainless steel shaft, copper pulley, to ensure that the normal atmospheric conditions do not rust and corrosion running flexible.

All kinds of fasteners, washers, snap rings and other parts are also made of hot-dip galvanized parts or stainless steel.

There are 6 sets of guiding pulleys and more than 3 sets of braking devices on the light panel, which ensure that the light panel does not swing by rolling along the surface of the pole with the guiding pulleys distributed at 120 degrees during the lifting or lowering of the light panel.

The working part of the surface of the guide pulley of the lamp disk in contact with the surface of the lamp pole adopts rubber hot pressing process.

In order to fully guarantee the automatic stop when the light plate reaches the limit position, the rising and falling movement of the light plate are equipped with reliable limit switches and over-travel protection.

The lifting and lowering of the lamp panel is realized by changing the rotation direction of the motor.

In order to prevent theft, the rectangular cavity is equipped with a sealed door, and the sealed door is equipped with a special door lock.

6. Installation method

6.1. Preparation work

(1) Count all components carefully according to the loading and packing list.

(2) Check whether the components are broken, bent or twisted, and whether the zinc layer is damaged.

(3) The label on each section of the pole indicates the type, order number and number of sections of the pole.

The weight of the pole is marked on the inside of the pole with a colored pen. Check whether the shipment is correct and whether the lifting capacity of the crane is sufficient.

(4) Based on the maximum and minimum socket length provided on the drawing, mark the rod for socketing.

6.2. Assembly work

(1) Each splice is provided with a set of splice lengths, but due to manufacturing, installation errors and physical factors, etc., there is variation in the splice length, so the maximum and minimum splice lengths are provided.

(2) In order to make the installation easy, it may be necessary to lubricate the mating surface.

Note that no lubricant should be used to prevent leakage and contamination of the rod, soapy water can be used to lubricate the inner and outer surfaces of the socket.

(3) Apply the necessary force at both ends of the socket to obtain a tight socket.