TUFNOL Grade 1P/24
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Data Sheet TUFNOL Grade IP/24 Phenolic Paper laminate with flame retardant low smoke formulation Paper/phenolic resin laminated plastic (SRBP - Synthetic Resin Bonded Paper) A quality electrical paper grade with enhanced fire and smoke properties This is an insulating sheet material with electrical qualities similar to Kite Brand TUFNOL but with the additional features of improved fire properties. TUFNOL Grade IP/24 is manufactured with a specially formulated phenolic resin, which provides flame retardant properties combined with much reduced smoke output in a fire. It is a good electrical insulating material meeting the requirements of BS EN 60893-34 Type PF CP 206 (and the former BS 2572 Type P3) and it also meets Class FVO flammability in the BS 6334 (IEC 707) test. In addition, it achieves Class 1 performance in the BS 476 Part 7 ‘Surface spread of flame’ test. What is Grade IP/24 used for? Grade IP/24 is used in electrical applications where a high quality electrical insulating sheet is required with the additional protection of improved fire properties. Many conventional insulation applications would benefit from the use of flame retardant materials and the low smoke and good spread of flame performance offered by Grade IP/24 is of particular importance in areas where escape from fire may be restricted. It can be used for items such as terminal boards, mounting plates, busbars and cable supports in railway applications, ships and ferries and a wide range of underground and restricted access areas TYPES AVAILABLE Natural colour Grade IP/24 Minimum order quantities may apply. — TUFNOL www.tufnol.com

Data Sheet —TUFNOLSPECIFICATIONS for TUFNOL Grade IP/24 BRITISH STANDARDS Current Standards Recent Standards (now obsolete) Sheet BS EN 60893-34 Type PF CP 206 BS 2572 Type P3 plus Flammability category FVO plus BS 476 Part 7 Surface Spread of Flame Class 1 Standard quality testing is to British Standards.

Data Sheet PHYSICAL PROPERTIES TUFNOL Grade IP/24 Sheet PROPERTY TYPICAL UNITS RESULT Cross breaking strength 150 Shear strength, flatwise 90 Electric strength, flatwise in oil at 90°C -1.6mm thick. 11 Electric strength, edgewise in oil at 90°C 45 Insulation resistance after immersion in5x109 water Flammability category Relative density Maximum working temperature*

Data Sheet —TUFNOL Thermal classification Class E Test methods as BS EN 60893-2. where applicable. **Users of highly stressed components at temperatures approaching the maximum are recommended to seek further advice from Tufnol Composites Ltd.