CM CMR CMP Cable

Understanding Ethernet Cable Jacket Ratings: CM vs. CMR vs. CMP

When planning the installation of Ethernet cables in walls or ceilings, understanding terms like CM, CMR, CMP, PVC, and LSZH becomes essential. These terms denote specific fire resistance ratings and materials specified by the National Electric Code (NEC) to ensure safety and compliance with building codes. This article provides a comprehensive analysis of CM, CMR, …

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