| 摘要 |
<p>Insulated surface heaters has semiconducting core, and cover material which can be welded or stuck together. The cover material consists of a polyamide, or F- or S-contg. plastics of low flammability. Used for heating of buildings by incorporation in floors, ceilings or walls. The cover is much less flammable than polyester coverings, and even if the core material is combustible it will not ignite since the cover completely excludes oxygen. Suitable electrical and mechanical properties combined with easy installation.</p> |
