Armoured electrical cables provide a sturdy and reliable solution for wiring applications that require improved protection. The addition of a protective metal sheath allows armoured cables to withstand dynamic or static loads, heat, and physical threats like abrasion, puncture, or vibration. In addition, armoured cables are designed to meet particular ratings, such as the UL (Underwriters Laboratories) rating system.
Understanding UL Ratings
Underwriters Laboratories (UL) is a global safety consulting and certification company. In order to help consumers differentiate between levels of protection, UL created the UL rating system. This system breaks down armoured electrical cable ratings into designation letters according to their resistance levels. UL ratings range from CL2 to CLX, with CL2 being suitable for general purposes applications and CLX offering the highest levels of protection, withstanding extreme temperatures, vibrations, and dynamic and static loads.
R-non Armour Cable Ratings
When it comes to non-armoured electrical cable ratings, UL also provides standardized designations. These range from R-1 to R-90, with R-90 offering the highest levels of protection. R-90 cables are particularly well suited for low voltage DC applications in environments where high mechanical stress would be present, such as mining sites or construction sites.
In conclusion, armoured electrical cables are an ideal choice for wiring applications that require greater protection against mechanical stress, heat, and vibrations. UL ratings provide an easy way to compare different cables, giving customers a standard system by which they can assess their options. R-non armour cables also offer robust protection, with ratings ranging from R-1 to R-90, allowing customers to find the appropriate safety level for their application.
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