Beyond the main pulling line, several "Cable Measuring and Monitoring Accessories" are essential for ensuring precise installation, adherence to specifications, and maintaining safety:

• Dynamometers (Tension Meters): These are perhaps the most critical. They are placed in-line with the pulling rope/cable and provide real-time, accurate measurements of the actual pulling tension. This allows operators to ensure the tension remains below the cable manufacturer's maximum allowable pulling tension (MAPT), preventing costly damage due to over-stressing. They come in mechanical (analogue) and digital versions, with digital often offering data logging.

• Length Counters/Meters: Devices that accurately measure the length of cable or pulling rope that has been pulled into the conduit or along the route. These are vital for:

  • Confirming the exact length of cable installed.

  • Identifying potential blockages by comparing pulled length to theoretical length.

  • Accurate inventory management.

  • Often integrated into guide rollers or standalone units.

• Proofing Mandrels/Duct Provers: For underground conduits, these are rigid, oversized slugs (usually slightly smaller than the conduit's internal diameter) pulled through the duct before the cable. They verify that the conduit is clear of obstructions, not crushed, and has no sharp edges that could damage the cable.

• Cable Diameter Gauges: Simple tools to quickly verify the correct cable diameter for matching with pulling grips, rollers, and conduit sizes.

• Infrared Thermometers: For large power cables, especially during long pulls, monitoring the cable's surface temperature can be important to ensure it's not overheating due to friction, especially in high ambient temperatures.

• Communication Devices: While not "measuring," clear communication (e.g., two-way radios, headsets) between the pulling machine operator and personnel at the cable entry/exit points is absolutely essential for synchronizing operations and reacting quickly to any issues, thus enabling precise control and safety.

These accessories provide the critical data and verification points that transform a simple pull into a controlled, quality-assured installation.