Installing power cables safely is of utmost importance to prevent electrical hazards and ensure the reliable operation of electrical systems. Before starting any installation, always turn off the power supply at the main circuit breaker and verify that the wires are de - energized using a voltage tester. When handling cables, avoid kinking or damaging the insulation, as this can lead to electrical leakage or short circuits. For underground installations, dig a trench of the appropriate depth, typically at least 18 inches for non - armoured cables and 24 inches for direct - burial armoured cables, and line the trench with sand or gravel to protect the cable. Lay the cable gently in the trench, avoiding sharp bends, and cover it with another layer of sand or gravel before backfilling with soil. For overhead installations, use proper support structures like utility poles or brackets and ensure that the cable is tensioned correctly to prevent sagging or excessive stress. When making electrical connections, strip the wire insulation to the appropriate length, insert the wire into the connector, and secure it tightly using wire nuts, terminal screws, or other approved connection methods. For indoor installations, ensure that cables are properly routed through conduit or cable trays to protect them from physical damage. Weidong Technology, with its commitment to safety and quality, provides products and guidance that adhere to best practices for safe power cable installation, ensuring that its "Heshengtong" brand cables are installed safely in various projects across China.