摘要 |
<p>The device has metallic frame housing, where a door is opened by a hinge and a unit is provided for fixing pipes lines. The frame housing supports a fire protection casing (1), and has lateral frame plates (2,3,4,5) connecting a back plate (6). Fire retardant materials having a length (L1) greater than or equal to 80 millimeters, are provided along the pipe line. The material is fire retardant mineral glass, ceramic or wool resin bonded mineral wool (9).</p> |