Installation channel system has U-shaped lower channel part and plate-shaped upper part designed to fulfill fire protection requirements when used together but not separately

摘要

The system prevents fire spreading from outside to the cables or from the cables to the outside at least for a defined period. Its parts are preferably of rectangular cross-section and consist off non-combustible material. The U-shaped lower channel part (1) and the plate-shaped upper part (2) are designed to fulfill fire protection requirements when used together but not separately.