Daily maintenance of high pole lights
High-pole lights refer to high-pole lighting facilities that are equal to or greater than 20m in height and are used as large-area lighting facilities for urban roads and highways, squares, stadiums, airports, ports and docks.
There are three types of high-pole lighting facilities: fixed (single or multi-column), lifting (electric lifting or manual lifting), and hydraulic tilting.
The most commonly used high-pole lights are electric lift-type high-pole lights; the lift-type high-pole lights are composed of lamp panels, light poles and foundations, lifting consoles, power distribution systems, and lightning protection devices.
The high pole lamp is a special kind of lighting equipment in urban lighting facilities, and its safety and normal use requirements are particularly high. For this reason, the Ministry of Construction issued the "Technical Conditions for High Pole Lighting Facilities" (CJ/T3076) in 1998. -1998).
High-pole lighting facilities are not widely used in our usual urban lighting engineering construction, but the maintenance of high-pole lamps cannot be ignored. The safe operation of high-pole lamps is very necessary, so the daily maintenance and repair of high-pole lamps must be carried out. Special attention is paid to maintenance. The products shall be maintained regularly in accordance with the relevant regulations of the product manufacturer's product manual.
The main content of daily maintenance of high pole lights:
1. Check the hot-dip galvanized anti-corrosion condition of all ferrous metal components (including the inner wall of the light pole) of the high-pole lighting facilities, and whether the anti-loosening measures of the fasteners meet the requirements (the anti-corrosion quality should meet the requirements of GB/T9790, GBJ36011 and GB/T11373 The relevant provisions).
2. Check the verticality of the high-pole lighting facilities (theodolite must be used to measure and test regularly according to requirements and regulations), and the allowable error of the pole should be less than 3‰ of the height of the pole. The straightness error of the axis of the pole shall not be greater than 2‰ of the pole length.
3. Check whether the outer surface of the lamp pole and the weld are corroded. For those that have experienced a long service period but cannot be replaced again, if necessary, use ultrasonic, magnetic particle inspection and other inspection methods to inspect and test the weld.
4. Check the mechanical strength of the lamp panel to ensure the safe use of the lamp panel, and check the heat dissipation of the closed lamp panel;
5. Check the fastening bolts of the lamp bracket, and adjust the projection direction of the lamp reasonably;
6. Carefully check the use of the wires (flexible cables or cords) in the lamp panel to see if the wires are subjected to excessive mechanical stress, whether there are aging, cracks, or exposed wires. If unsafe phenomena occur, they should be dealt with immediately;
7. Replace and repair damaged light source appliances and other components
8. Focus on checking the lifting transmission system:
(1) Comprehensively check the manual and electric functions of the lifting transmission system, requiring flexible transmission of the mechanism, stable lifting, safety and reliability.
(2) The deceleration mechanism should be flexible and light, and the self-locking function should be safe and reliable. The gear ratio is reasonable, and the speed of the lamp panel should not exceed 6m/min when it is raised and lowered by electricity (it can be measured with a stopwatch).
(3) Check whether the stainless steel wire rope has broken strands, and replace it firmly if found.
(4) Check the brake motor, the speed should meet the relevant design requirements and safety performance requirements;
(5) Check the transmission system overload safety clutch and other overload safety protection devices.
(6) Check the electrical and mechanical limit devices, limit devices and over-travel limit protection devices of the lamp panel lifting.
(7) When a single main wire rope is used, the reliability and safety of the braking or protective device to prevent the lamp panel from accidentally falling should be checked. After the lamp panel of the wire rope rises into place, check the automatic hanging and unhooking unloading device to ensure that the hanging and unloading are free.
(8) The line inside the inspection pole must be fixed firmly and free from compression, clamping, or damage.
9. Check power distribution and control equipment
(1) The power distribution circuit and the lamp panel circuit should be fixedly connected.
(2) The wire connection should be firm and reliable, without loosening or falling off.
(3) Check the three-phase load balance and the midnight light control.
(4) Check the electrical connections. When torsion, bending and vibration may occur, they should be securely and reliably fixed without looseness.
10. Electrical safety performance inspection, check the insulation resistance between the power supply line and the ground: not less than 10M?
11. Inspection of protective grounding and lightning protection devices
(1) The metal light poles and the metal shells of electrical equipment should have good protective grounding. The grounding resistance should not be greater than 10 when tested with a grounding resistance meter. Shantoulan ぷ dad always fan the Jun? (2) Check the fixing of the lightning rod;
12. Measure the plane of the foundation panel with a level ruler, combine the inspection results of the verticality of the lamp pole, analyze the uneven settlement of the foundation, and make corresponding treatments.
13. Periodically conduct on-site measurements of the lighting effects of high pole lights.
