A portable document format (pdf) visual aid details the dimensions and specifications of fittings designed to secure and terminate electrical cables entering enclosures or equipment. This resource provides standardized measurements, thread types (e.g., NPT, PG, Metric), and cable diameter ranges suitable for each gland size. For instance, a specific chart may indicate that an M20 gland accommodates cables with an outer diameter between 6 mm and 12 mm, while a larger M25 gland is suitable for cables ranging from 11 mm to 16 mm.
The availability of such standardized guides promotes accurate selection and installation, thereby ensuring the integrity of electrical systems. These visual aids are crucial for maintaining environmental protection ratings (IP ratings) and preventing cable pullout, reducing the risk of equipment failure or safety hazards. The evolution of these resources reflects the industry’s ongoing emphasis on safety, standardization, and efficient installation practices across diverse electrical applications.