How to connect low-voltage cables
Low-voltage cable wiring requirements:
1. There should be no joints, especially inside conduit. Cable joints must not cause fires, short circuits, or poor contact.
2. When wiring ceiling cables, the main line must not be stepped and should be wrapped with fireproof tape to prevent electrical sparks.
3. Use wire caps for wiring. T4 type is commonly used, which can hold four 4mm² wires.
In short, low-voltage cable connections should be neatly organized and labeled for easy maintenance. The live wire should be red, the neutral wire blue, and the ground wire yellow.
Low-voltage cables are generally connected using connecting conduits, which are categorized by material. Copper or aluminum is sufficient for single-material connections, and the conduit must be twice the length of the individual conductors. Mixed-material connections require the use of copper-aluminum conduit, bolts, or wire rope triangular locking. The former must be securely pressed with a crimping clamp, then inserted into heat shrink tubing. The low-voltage cable branch insulation must be properly treated before heat shrinking. The latter uses a wire rope with a three-angle lock, and the wire connector is too large to handle, so it is only used when there is no pressure clamp or at high altitude. In addition, there is a high-pressure self-adhesive method that is more convenient to handle.
