What should guide pull tension during installation of copper cabling?

• A. Manufacturer and code guidelines; use the specified maximum tension for the cable type
• B. The color of the jacket
• C. Length of run
• D. The price

Answer: (A)

The limit you must respect for pulling copper cabling comes from the cable itself and the installation standards. The manufacturer specifies a maximum pulling tension for each cable type, reflecting how much stress the insulation, jacket, and internal conductors can safely endure without being damaged. Codes and standards reinforce this by requiring installers to stay within those limits. Sticking to the rated tension protects signal integrity and long-term reliability; going beyond it can cause microcracks, insulation damage, or other hidden faults that may fail later or void warranties. Things like jacket color, run length, or price don’t determine safe tension, so they’re not guides for how hard you pull. For best practice, consult the cable’s datasheet for the exact maximum tension and use proper pulling equipment and techniques to keep within that limit.