How to connect the conductive flexible wire in the distribution box

To connect a flexible wire to a distribution box, use a properly sized flexible conduit with a compatible connector, secure it through a knockout hole, and tighten a locknut and bushing to protect the wire and maintain grounding continuity.Step 1: Choose the Right Conduit and ConnectorFlexible Metal Conduit (FMC): Spiral-wound metal, suitable for dry indoor locations. Connects with a squeeze-type or screw-in connector. Provides mechanical protection and grounding when paired with metal boxes .Liquid-Tight Flexible Metal Conduit (LFMC): Metal core with a waterproof thermoplastic jacket, ideal for wet or outdoor locations. Requires a compression-style connector to seal against moisture .Non-Metallic Flexible Conduit (NMFC/LFNC): Plastic-based, corrosion-resistant, suitable for residential or damp areas . Ensure the connector matches the conduit diameter (e.g., ½-inch conduit requires a ½-inch connector) and type.Step 2: Prepare the ConduitMeasure the distance from the conduit entry point to the distribution box.Cut the conduit slightly longer than needed to allow adjustment.Use a fine-toothed hacksaw or specialized conduit cutter to make a clean, burr-free cut .For FMC, a squeeze-type connector clamps onto the metal spirals; for LFMC, a compression connector seals the jacket .Step 3: Attach the ConnectorSlide the connector onto the conduit end.Tighten the screws or compression collar to secure the conduit firmly.Insert an insulating bushing inside the connector to protect wire insulation from sharp edges .Step 4: Connect to the Distribution BoxRemove the appropriate knockout hole on the box using a screwdriver or punch.Insert the conduit connector through the knockout.From inside the box, thread a locknut onto the connector and tighten it to establish a secure mechanical and electrical bond .Ensure the conduit is seated firmly and the connection is stable.Step 5: Pull the WiresFeed the flexible wire through the conduit into the distribution box.Verify that the wire insulation is not damaged and that the grounding path is continuous.Tools NeededTape measureConduit cutter or fine-toothed hacksawScrewdriverChannel-lock pliers or pipe wrench for locknutsOptional: punch for knockout holes Following these steps ensures a safe, durable, and code-compliant connection between flexible wire and a distribution box, protecting the conductors from mechanical damage, moisture, and maintaining proper grounding .