(1) Construction Process:

Basic embedment preparation → Sectional jointing of rod → Inserting steel wire rope and cables → Head installation → Hoisting → Adjusting rod verticality → Power connection → Installing and adjusting light panel → Installing lighting fixtures → Adjusting

(II) Construction Method:

The winch and electrical panel for the telescopic flagpole are pre-installed within the pole before shipment. The hook mechanism and head are assembled as a complete unit, and the entire system has been assembled and debugged in the factory. The goods delivered to the site are divided into the pole (consisting of multiple sections), head assembly, hook mechanism assembly, rain cover, light disk, and accessories (such as wire ropes, cables, lightning rods, light disk brackets, electric tools, etc.).

1. Organizing foundation embedment components:

Clear debris and trash from the concrete foundation surface, remove protective materials wrapped around the embedded bolt, recheck the spacing dimensions between bolts (including diagonal dimensions), and confirm that the bolt positions match the dimensions shown in the drawings. Visually inspect the bolt threads for damage; if necessary, repair the threads to ensure that the nuts can be freely tightened onto the bolts.

2. Socketing of the rod body:

Prior to the start of the sleeve, a thin steel wire or iron wire longer than the rod height should be threaded through the electrical door into the rod body. This will serve as a guide for threading wire ropes and cables later on. The threading of the wire or iron wire should be done simultaneously with the sleeve fitting process. (See Figure 1)

Start from the very bottom section of the rod body, ascending section by section.

Position the base section with flanges near the foundation in the appropriate location (place the electrical maintenance door upwards), ensuring the flange is on the ground. Use wooden wedges to lift the front end of the base section about 1.5 meters from the front, allowing the front end of the base section to be elevated from the ground, leaving sufficient space for the insertion of the upper section rod.

Indicate the socket depth on the base section, the socket depth between each section rod, which varies with the diameter of the rod, can be found in the drawings.

Nuts are welded on both sides of the rod body for securing the套 tightening steel wire rope. When lifting, confirm the position to ensure the nuts of the upper and lower sections are aligned in a straight line.

Lift the rod body from the previous section with a crane, aligning the wider end with the front of the base section, and slowly insert it as deeply as possible. Similarly, place wooden wedges at the front of this section.

Tighten bolts on the nuts on both sides of the upper and lower rod bodies, and securely install the tensioned wire rope and hand winch as shown in the following illustration on both sides of the rod bodies.

Simultaneously tighten the manual winch on both sides of the rod until the sleeve depth marking is reached. If resistance is felt while tightening, use a hammer to strike the sleeve portion of the rod to create vibration, assisting in the rod's snug fit. Strike with a wooden board or other padding to prevent damage to the rod surface. (See Figure 2)

Follow the above steps and methods to sequentially connect the other sections of the rod.

3. Wire rope and cable threading

Once the rod sleeve is assembled, connect the rigging coupler to the winch's main steel wire rope, then secure it to the guide wire left in the rod within the electrical door. Release the winch to allow the main steel wire rope to unwind from the drum (refer to the external electric winch lifting pole operation manual if using electric control). Simultaneously, pull the guide wire at the other end of the rod to pull the rigging coupler out of the rod's small end. Position the head at the appropriate location at the front end of the rod, and feed the ends of the three suspended steel wire ropes without loops and the cable through the head sleeve, through the pulley groove, and out through the head opening. Then, connect the other end of the suspended steel wire rope with loops to the rigging coupler (the connection method of the cable is shown in the figure). Operate the winch to retract the main steel wire rope, causing the rigging coupler to retract and enter the rod (about 100 cm into the rod). (See Figure Three)

4. Header Installation:

Raise the front end of the rod, which has been socketed and had the steel wire rope and cables inserted, using an object (the electrical door of the rod facing upwards), so that the height allows the installed head to clear the ground.

Tighten the set screw onto the nut on the head sleeve, lift the head with a crane, and insert it into the rod body. The fork position with the cable pulley on the head should align with the electrical door's orientation. (See Figure 4)

Tighten the set bolts in sequence, adjusting the screw-in depth to ensure the clearance between the head sleeve and the rod body is consistent (i.e., align the axis of the head sleeve with the axis of the rod body). The purpose is to have the three sets of pulley shafts at the same horizontal plane after the rod is erected.

Pull three suspended steel wire ropes and cables to the bottom of the pole, above the electrical door, so that the distance from the ground can connect with the fixed points of the light panel. Temporarily tie them to the pole with ropes to minimize interference during the lifting operation.

Later, install a rain cover, lightning rod, and connect the jumper wires at the top.

5. Hoisting:

After completing the above steps, please carefully inspect and verify to ensure nothing is missed and it is secure, then prepare for hoisting.

Based on the conditions of the 35m, 15m, and 8m steel lamp posts, select cranes and hoisting equipment. During the hoisting process, the on-site supervisor will coordinate to ensure the reliable and orderly progression of the lamp post hoisting throughout.

Theodolites and straight edge checks for verticality; allowable deviation: 2H/1000 for lift-and-slide models, and 3H/1000 for 10-meter pole with a maximum of 20mm (H is the pole height, in mm).

Please note the following points for the hoisting of telescopic tall poles:

5.1 The machine head must be positioned below the light pole head during the lifting and installation process.

5.2 The lifting point should be at two-thirds of the rod.

5.3 The load of the lifting equipment must meet the weight of the rod.

5.4 The lifting point should be positioned to facilitate the placement of the light pole in the predetermined direction.

6. Installation and debugging of light panels:

Tighten the set screw onto the light fixture sleeve nut, lift the light fixture with a crane, and fit it onto the front end of the pole. Gradually tighten the set screws, adjusting the screw depth to ensure the sleeve and pole fit gaps are consistent (aligning the sleeve axis with the pole axis).

Later, install lightning rods on the lamp plate.

7. Cable passing

Before strapping the cables, a guiding steel wire or iron wire should be inserted first. This step can be pre-completed during the rod sleeve connection (refer to the rod sleeve connection section) or after the rod is mounted on the base.

At the front end of the rod or the cable entry hole of the lamp disc, wrap and secure the guide wire around the cable. Pull the guide wire to assist in feeding the cable through the rod.

8. Lighting Installation:

Install lighting fixtures at the designated position on the light panel, wire them up, power them on, and conduct a 24-hour lighting test.