How To Cut And Strip AC90/BX Cables

Cutting and stripping AC90/BX cables requires some specific tools and techniques to ensure safety and accuracy. AC90/BX cables are armored cables commonly used in electrical installations. Here's a general guide on how to cut and strip them:

Tools Needed:

1. Cable Cutter: A heavy-duty cable cutter designed for cutting armored cables is essential. These cutters typically have strong, sharp blades capable of cutting through the armor and conductors.
2. Utility Knife: A utility knife with a sharp blade is required for stripping the outer armor and insulation.
3. Wire Strippers: Wire strippers suitable for the gauge of the conductors inside the cable are necessary.
4. Safety Gear: Wear appropriate safety gear, including gloves and safety glasses, to protect yourself from sharp edges and flying debris.

Steps:

1. Measure and Mark: Measure the length of cable you need and mark it with a pencil or marker. Ensure you have enough length for your intended purpose.

2. Cutting:

   • Place the cable in a secure position, ensuring it won't move during cutting.
   • Use the cable cutter to make a clean, straight cut perpendicular to the cable's length. Apply firm pressure to the cutter handles to ensure a clean cut.
   • Avoid crushing the cable while cutting to prevent damage to the conductors inside.

3. Stripping the Armor:

   • Identify the type of armor. AC90/BX cables typically have a metal armor layer surrounding the insulated conductors.
   • Use the utility knife to score along the length of the armor, following the marked line. Apply moderate pressure to ensure you cut through the armor without damaging the conductors inside.
   • Once the armor is scored, carefully bend the cable at the score line to break the armor along the cut.
   • Slide the armor off the cable to expose the insulated conductors inside.

4. Stripping the Insulation:

   • Use the wire strippers to strip the insulation from the individual conductors inside the cable. Select the appropriate notch on the wire stripper for the gauge of the conductors.
   • Carefully position the wire stripper over the end of the conductor and squeeze the handles firmly to cut through the insulation.
   • Gently pull the wire stripper away from the conductor to remove the insulation. Avoid pulling too hard, as this could damage the conductor.

5. Inspect: After stripping the insulation, inspect the exposed conductors for any damage or nicks. If you notice any damage, trim the affected portion and strip the insulation again.

6. Connectivity: Once the conductors are stripped, you can proceed with connecting them to the appropriate terminals or devices as needed.

Always adhere to safety guidelines and local electrical codes when working with electrical cables and equipment. If you're unsure about any aspect of the process, consider consulting a professional electrician for assistance.