Proper connection of elevator cables requires careful preparation, correct identification, and secure termination to ensure safety and reliable operation.

Preparation and Inspection

Before connecting cables, inspect the traveling cable for any damage such as cuts, gashes, or crushed areas, as damaged cables can compromise safety and performance ( ). Store the cable in a clean, dry area and seal the ends with electrical tape to prevent moisture ingress ( ). Ensure the cable is supported properly using mesh grips or steel-core hangers depending on the cable type ( ).

Stripping and Conductor Separation

1. Measure and mark the stripping point—typically around 6 feet (1.8 meters) of jacket removal is required for most installations ( ).
2. Score and peel the outer jacket using a specialized tool like a Flexi-Peeler, avoiding knives or scissors to prevent conductor damage ( ).
3. Remove the braid or sock with a sock slicer tool and carefully separate the conductors by layer as required ( ).
4. Cut away any jute fillers to expose the individual conductors for termination ( ).

Identification and Routing

• Use the elevator wiring diagram to identify each conductor's function, such as power, ground, or signal lines ( ).
• Color-coded wires and labeled conductors help ensure correct connections to relays, switches, motor starters, and safety devices ( ).
• Route the cables neatly within the distribution box, avoiding sharp bends or contact with metal edges to prevent insulation damage ( ).

Termination

• Connect each conductor to its designated terminal according to the wiring diagram, ensuring tight and secure connections to prevent arcing or loose contacts ( ).
• For steel-core cables, secure the weight load in the strand vice portion of the hanger first, then tighten hose clamps around the cable to prevent rotation or slippage ( ).
• For jute-core cables, use appropriately sized mesh grips and secure the lower end with electrical tape or a stainless steel hose clamp ( ).

Safety and Compliance

• Follow local electrical codes such as NEC 620.37 or OESC 620.37 for wiring in machine rooms and control spaces, ensuring conduits and raceways only enter to the extent necessary for device connections ( ).
• Always de-energize circuits before working in the distribution box and verify proper grounding.
• Double-check all connections against the wiring diagram to ensure correct operation of motors, relays, door interlocks, and safety systems ( ). By following these steps—inspection, careful stripping, conductor separation, correct routing, secure termination, and adherence to codes—you can safely and effectively connect cables in an elevator distribution box, ensuring reliable elevator operation and compliance with safety standards.