Which practice is recommended for securing conductors entering cabinets or boxes to maintain box fill and strain relief?

• A. They should be secured with electrical tape only.
• B. They should be secured using approved clamps or connectors to provide strain relief.
• C. They should be left unsecured if the box is small.
• D. They should be tied with string.

Answer: (B)

Securing conductors as they enter enclosures requires proper strain relief using approved clamps or connectors. These devices provide a secure anchor, prevent movement that could damage insulation or loosen terminations, and help maintain the box fill by keeping the conductors supported at the entry. Electrical tape, string, or leaving a box unsecured does not provide the necessary mechanical support and is not an approved method for strain relief, so such practices are not acceptable.