Ease of fire test for silicone rubber glass fiber pipe en45545

High temperature resistant fireproof protective sleeve made of glass fiber and silica gel , It is commonly used for vehicle control cables and related high temperature protection （ High temperature resistance and heat insulation protection outside the hydraulic hose ）.

Based on experience , The flame retardant performance of silicone rubber glass fiber tube is good , Most of them can well meet the non-metallic flame retardant standards for rail transit EN45545-2:2020 R22/R23 HL3 The highest level requirements .

EN45545 R22 Standard index requirements

EN45545-2 R22HL1 Grade requirements ：

ISO4589-2 OI Oxygen index ≥28%,ISO5659-2 Smoke density ≤600;NFX70-100 toxicity ≤1.2

EN45545-2 R22HL2 Grade requirements ：

ISO4589-2 OI Oxygen index ≥28%,ISO5659-2 Smoke density ≤300;NFX70-100 toxicity ≤0.9

EN45545-2 R22HL3 Grade requirements ：

ISO4589-2 OI Oxygen index ≥32%,ISO5659-2 Smoke density ≤150;NFX70-100 toxicity ≤0.75

EN45545-2R22/R23 Fire detection - The test method

ISO 4589-2 plastic - Determination of combustion behavior by oxygen index method - The first 2 part : Room temperature test

ISO 4589-2 Plastics-Determination of burning behaviour by oxygen index –Part 2: Ambient-temperature test

ISO 5659-2 Determination of optical density of single smoke box 　　

ISO 5659-2Determination of optical density by a single-chamber test

EN 17084 Fire prevention of railway vehicles - Toxicity testing of materials and components

EN 17084 Fire protection in railway vehicles- Toxicity test of materials and components

come from GF2022