Preparation before the garden light construction

First of all, before the construction of the garden light, check the materials again to see if there are any problems. First: Material requirements: The equipment, equipment and materials used should comply with the current national technical standards, and there should be product quality certificates, equipment There should be a famous brand. Second: the courtyard lamp itself: 1. The accessories of the courtyard lamp should be complete, without mechanical damage, deformation, paint peeling, lampshade cracking, etc. 2. The section of the lamp cap wire should not be less than: copper wire-1.mm2; aluminum wire-2.5mm2. Third, pin insulators: 1. Porcelain parts and iron parts should be closely combined, and the iron parts should be galvanized well. 2. The enamel is smooth and free of defects such as cracks, lack of glaze, spots, burn marks, bubbles or burnout of enamel. 3. It is strictly forbidden to use sulfur-filled insulators. Fourth, insulated wires: 1. There should be no twists, bends, breaks, and insulation damage. 2. The cross section of the down conductor should not be less than: copper wire-1.5mm2; aluminum wire-2.5mm2; the rated voltage should not be less than 500V. Fifth, the lamp holder and hoop of the courtyard lamp: 1. The surface should be smooth and free of defects such as cracks, burrs, flashes, sand holes, and bubbles. 2. It should be hot-dip galvanized. In case of partial peeling of zinc skin, red Zhangdan and paint should be applied after rust removal. Sixth, bolts used to install courtyard lights: 1. There should be no cracks, sand holes, zinc peeling and rust on the surface of the bolts, and the bolts and nuts should be well matched. 2. All kinds of connecting bolts on metal should have anti-loosening device, and the anti-loosing device should be well galvanized, with suitable elasticity, and the thickness should meet the requirements. In addition, check other materials, fuses, insulated wires, soft plastic tubes, rubber cloth, black tape, etc. carefully. Seventh, the main machinery and tools needed for courtyard lamp construction: 1, pulley, hand hammer, adjustable wrench, nylon rope. 2. Level, tape measure, foot buckle, seat belt, high stool, etc. Eighth, the working conditions of the courtyard lamp: 1. The lamp holder has been made. 2. The construction of the overhead line has been completed.