Cable Fire Ratings: CM, CMR, & CMP

Introduction
PVC has properties suitable for making up Ethernet cable jackets, but it also produces toxic smoke and fumes if caught in a fire.
However, cable jackets are not made equally. They have three basic fire ratings: CM, CMR, and CMP.
CM-rated cables are only for general use: patch cables, or cables installed inside the wall where the fire code is not strict.
CMR - rated cables are used between the floors of a multistory building.
CMP-rated cables are better than both CM and CMR. They are the most fire-resistant and should be used in plenum spaces where fire can easily start and spread.
Playlists:
Topology & cabling, & physical cabling structure:
www.youtube.co...
Ethernet Basics:
www.youtube.co...
IPv4 Basics:
• Tricks to five classes...
OSI Model and related:
• OSI Model

[@Drjay18]

Great job covering the topic with visual examples

[@miramich420]

your videos are pure gold for anyone trying to learn this great job sir! ive watched many of your videos.

[@vijaykumar-hc6jz]

Very well explained!

[@sunnyclassroom24]

Glad it was helpful!

[@elvinguerrero2596]

Thank you very much sir.

[@sunnyclassroom24]

Most welcome

[@pathakullahrubina3743]

Dear Sir, Thanks for your video.can you suggest which is important process or selection of PVC material to meet compliance of CM rating, thanks

[@asoteico9528]

Great...!!!

[@sunnyclassroom24]

Thank you for watching!

[@blomegoog]

Been doing network wiring for many years, and now I know what they are. We used to just refer to them as Regular or more expensive Plenum. LOL.

[@erlkonig6375]

Great video! Would you mind making a video about QPSK?

[@sunnyclassroom24]

Possibly!

[@nickvelasco8386]

WTF, 89.4k subs only, everyone must learn networking stuff.

[@cokeforever]

nah...