{"id":11534,"date":"2025-09-11T16:54:53","date_gmt":"2025-09-11T08:54:53","guid":{"rendered":"https:\/\/totcables.com\/?p=11534"},"modified":"2025-09-11T16:54:53","modified_gmt":"2025-09-11T08:54:53","slug":"ft1-to-ft6-cable-ratings-complete-guide-to-fire-rated-cables-and-ft4-applications","status":"publish","type":"post","link":"https:\/\/totcables.com\/?p=11534","title":{"rendered":"FT1 to FT6 Cable Ratings: Complete Guide to Fire-Rated Cables and FT4 Applications"},"content":{"rendered":"

{“main-title”:{“component”:”hc_title”,”id”:”main-title”,”title”:””,”subtitle”:”Cables are critical components of modern electrical and communication systems, and their fire rating plays a vital role in ensuring safety. In Canada, the FT (Flame Test) series defines the fire resistance of cables, ranging from FT1 to FT6. Understanding these ratings is essential for architects, engineers, and electricians to ensure safe and code-compliant installations.”,”title_content”:{“component”:”hc_title_image”,”id”:”title-image”,”image”:”https:\/\/totcables.com\/wp-content\/uploads\/2025\/09\/ft1-cable.png|470|508|11535″,”full_screen”:false,”full_screen_height”:””,”parallax”:false,”bleed”:””,”ken_burn”:””,”overlay”:”transparent-dark”,”breadcrumbs”:true,”white”:true,”position”:””}},”section_5ZtkF”:{“component”:”hc_section”,”id”:”section_5ZtkF”,”section_width”:””,”animation”:””,”animation_time”:””,”timeline_animation”:””,”timeline_delay”:””,”timeline_order”:””,”vertical_row”:””,”box_middle”:””,”css_classes”:””,”custom_css_classes”:””,”custom_css_styles”:””,”section_content”:[{“component”:”hc_column”,”id”:”column_vtfQF”,”column_width”:”col-md-12″,”animation”:””,”animation_time”:””,”timeline_animation”:””,”timeline_delay”:””,”timeline_order”:””,”css_classes”:””,”custom_css_classes”:””,”custom_css_styles”:””,”main_content”:[{“component”:”hc_wp_editor”,”id”:”Xhugf”,”css_classes”:””,”custom_css_classes”:””,”custom_css_styles”:””,”editor_content”:”Cables are critical components of modern electrical and communication systems, and their fire rating<\/strong> plays a vital role in ensuring safety. In Canada, the FT (Flame Test) series<\/strong> defines the fire resistance of cables, ranging from FT1<\/strong> to FT6<\/strong>. Understanding these ratings is essential for architects, engineers, and electricians to ensure safe and code-compliant installations.\\n\\nft1 cable\\n<\/p>\n

What Are FT Ratings?<\/h2>\n

\\n<\/p>\n

FT ratings<\/strong>, established by the Canadian Standards Association (CSA)<\/strong>, indicate a cable\u2019s ability to resist flame propagation and minimize smoke and toxic gas release during a fire. Each number corresponds to a specific type of fire test:<\/p>\n

\\n\\n<\/p>\n

    \\n \\t<\/p>\n
  • \\n\n

    FT1:<\/strong> Basic vertical flame test for individual wires or small cables<\/p>\n

    \\n<\/li>\n

    \\n \\t<\/p>\n

  • \\n\n

    FT2:<\/strong> Horizontal tray test, suitable for open cable trays<\/p>\n

    \\n<\/li>\n

    \\n \\t<\/p>\n

  • \\n\n

    FT4:<\/strong> Vertical riser test for cables running between floors<\/p>\n

    \\n<\/li>\n

    \\n \\t<\/p>\n

  • \\n\n

    FT6:<\/strong> Plenum-rated, tested for flame spread and smoke in air-handling spaces<\/p>\n

    \\n<\/li>\n

    \\n<\/ul>\n

    \\n<\/p>\n

    These tests help determine the safest application for each cable type in a building.<\/p>\n

    \\n\\n\\n<\/p>\n

    \\n\\n<\/p>\n

    Detailed FT Series Ratings<\/h2>\n

    \\n<\/p>\n

    FT1 Cable<\/h3>\n

    \\n<\/p>\n

      \\n \\t<\/p>\n
    • \\n\n

      Definition:<\/strong> Entry-level flame rating for single wires or small cables<\/p>\n

      \\n<\/li>\n

      \\n \\t<\/p>\n

    • \\n\n

      Applications:<\/strong> Typically used in residential wiring where fire spread risk is minimal<\/p>\n

      \\n<\/li>\n

      \\n \\t<\/p>\n

    • \\n\n

      Key Features:<\/strong> Basic flame resistance, suitable for dry and indoor environments<\/p>\n

      \\n<\/li>\n

      \\n<\/ul>\n

      \\n<\/p>\n

      FT2 Cable<\/h3>\n

      \\n<\/p>\n

        \\n \\t<\/p>\n
      • \\n\n

        Definition:<\/strong> Flame rating for horizontal tray or conduit applications<\/p>\n

        \\n<\/li>\n

        \\n \\t<\/p>\n

      • \\n\n

        Applications:<\/strong> Horizontal runs in open spaces or ceilings<\/p>\n

        \\n<\/li>\n

        \\n \\t<\/p>\n

      • \\n\n

        Key Features:<\/strong> Moderate fire resistance, prevents flame propagation in horizontal trays<\/p>\n

        \\n<\/li>\n

        \\n<\/ul>\n

        \\n<\/p>\n

        FT4 Cable<\/h3>\n

        \\n<\/p>\n

          \\n \\t<\/p>\n
        • \\n\n

          Definition:<\/strong> Riser-rated cable<\/strong> tested for vertical flame propagation<\/p>\n

          \\n<\/li>\n

          \\n \\t<\/p>\n

        • \\n\n

          Applications:<\/strong> Cables that run between floors, including communication and network wiring<\/p>\n

          \\n<\/li>\n

          \\n \\t<\/p>\n

        • \\n\n

          Key Features:<\/strong> High vertical flame resistance, commonly used in commercial and multi-story residential buildings<\/p>\n

          \\n<\/li>\n

          \\n<\/ul>\n

          \\n<\/p>\n

          FT6 Cable<\/h3>\n

          \\n<\/p>\n

            \\n \\t<\/p>\n
          • \\n\n

            Definition:<\/strong> Plenum-rated cable for air-handling spaces<\/p>\n

            \\n<\/li>\n

            \\n \\t<\/p>\n

          • \\n\n

            Applications:<\/strong> Ducts, drop ceilings, and other plenum spaces<\/p>\n

            \\n<\/li>\n

            \\n \\t<\/p>\n

          • \\n\n

            Key Features:<\/strong> Maximum fire and smoke resistance, suitable for HVAC spaces<\/p>\n

            \\n<\/li>\n

            \\n<\/ul>\n

            \\n\\n<\/p>\n

            \\n\\n<\/p>\n

            What is FT4 Cable Used For?<\/h2>\n

            \\n<\/p>\n

            FT4 cables<\/strong> are one of the most widely used CSA-rated cables due to their versatility in vertical installations. Common applications include:<\/p>\n

            \\n\\n<\/p>\n

              \\n \\t<\/p>\n
            • \\n\n

              Riser Wiring:<\/strong> Connecting floors in commercial or multi-story residential buildings<\/p>\n

              \\n<\/li>\n

              \\n \\t<\/p>\n

            • \\n\n

              Data and Communication Networks:<\/strong> Ethernet, fiber, and low-voltage control systems<\/p>\n

              \\n<\/li>\n

              \\n \\t<\/p>\n

            • \\n\n

              Security Systems:<\/strong> Fire alarms, CCTV, and access control systems<\/p>\n

              \\n<\/li>\n

              \\n<\/ul>\n

              \\n<\/p>\n

              Key Benefits of FT4:<\/strong><\/p>\n

              \\n\\n<\/p>\n

                \\n \\t<\/p>\n
              • \\n\n

                Prevents vertical flame propagation<\/p>\n

                \\n<\/li>\n

                \\n \\t<\/p>\n

              • \\n\n

                Meets building code requirements for riser installations<\/p>\n

                \\n<\/li>\n

                \\n \\t<\/p>\n

              • \\n\n

                Reduces smoke and toxic gas spread between floors<\/p>\n

                \\n<\/li>\n

                \\n<\/ul>\n

                \\n\\n<\/p>\n

                \\n\\n<\/p>\n

                Comparing FT Ratings with North American Standards (UL\/NEC)<\/h2>\n

                \\n<\/p>\n

                Many users are familiar with UL\/NEC standards<\/strong> like CM, CMR, and CMP. Here\u2019s how CSA FT ratings align:<\/p>\n

                \\n\\n<\/p>\n

                \\n<\/p>\n
                \\n<\/p>\n\\n<\/p>\n\\n<\/p>\n\\n<\/p>\n\\n<\/p>\n\\n<\/p>\n\\n<\/p>\n\\n<\/p>\n
                CSA FT Rating<\/th>\n

                \\n<\/p>\n

                		Approx. UL\/NEC Equivalent<\/th>\n

                \\n<\/p>\n

                		Application Area<\/th>\n

                \\n<\/tr>\n

                \\n<\/thead>\n

                \\n<\/p>\n

                FT1<\/td>\n

                \\n<\/p>\n

                		VW-1<\/td>\n

                \\n<\/p>\n

                		Single wires, residential circuits<\/td>\n

                \\n<\/tr>\n

                \\n<\/p>\n

                FT4<\/td>\n

                \\n<\/p>\n

                		CMR (Riser Rated)<\/td>\n

                \\n<\/p>\n

                		Vertical riser wiring between floors<\/td>\n

                \\n<\/tr>\n

                \\n<\/p>\n

                FT6<\/td>\n

                \\n<\/p>\n

                		CMP (Plenum Rated)<\/td>\n

                \\n<\/p>\n

                		Plenum spaces and air-handling areas<\/td>\n

                \\n<\/tr>\n

                \\n<\/tbody>\n

                \\n<\/table>\n

                \\n<\/p><\/div>\n

                \\n<\/p><\/div>\n

                \\n<\/p>\n

                Understanding these equivalencies helps engineers and installers choose the right cable for both Canadian and North American projects.<\/p>\n

                \\n\\n\\n<\/p>\n

                \\n\\n<\/p>\n

                Choosing the Right FT Cable<\/h2>\n

                \\n<\/p>\n

                Factors to Consider:<\/strong><\/p>\n

                \\n\\n<\/p>\n

                  \\n \\t<\/p>\n
                1. \\n\n

                  Application Environment:<\/strong> Determine if the cable is for horizontal, vertical, or plenum installation<\/p>\n

                  \\n<\/li>\n

                  \\n \\t<\/p>\n

                2. \\n\n

                  Building Codes:<\/strong> Ensure compliance with CSA and local fire codes<\/p>\n

                  \\n<\/li>\n

                  \\n \\t<\/p>\n

                3. \\n\n

                  Cable Type:<\/strong> Consider signal type (data, power, or low-voltage control)<\/p>\n

                  \\n<\/li>\n

                  \\n \\t<\/p>\n

                4. \\n\n

                  Future Expansion:<\/strong> Plan for additional circuits or capacity<\/p>\n

                  \\n<\/li>\n

                  \\n<\/ol>\n

                  \\n<\/p>\n

                  By selecting the correct FT rating, you ensure safety, code compliance, and longevity of your building\u2019s cabling system.<\/p>\n

                  \\n\\n\\n<\/p>\n

                  \\n\\n<\/p>\n

                  Conclusion<\/h2>\n

                  \\n<\/p>\n

                  The FT1 to FT6 series<\/strong> provides a structured and reliable system for assessing fire resistance in electrical and communication cables. FT4 cable<\/strong>, in particular, is essential for riser applications in multi-story buildings, offering vertical flame protection and minimizing fire risk between floors.<\/p>\n

                  \\n<\/p>\n

                  For projects involving air-handling spaces, FT6 is mandatory, while FT1 and FT2 serve smaller or horizontal installations. Aligning CSA FT ratings with UL\/NEC equivalents helps users navigate international standards and select cables safely.<\/p>\n

                  \\n<\/p>\n

                  Proper installation by qualified professionals is always recommended to maintain compliance and safety.<\/p>\n

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In Canada, the FT (Flame Test) series defines the fire resistance of cables, ranging from FT1 to FT6. 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