![]() The ‘Enhanced’ grade are designed for use where the fire detection and fire alarm systems need to support evacuation for a greater duration than that offered by the general use ‘Standard’ grade fire proof cables during a fire situation. ![]() However the BS5389 cable standard refers to ‘Standard’ and to ‘Enhanced’ grade cables, which determines the level of fire resistance that the cables offer. ![]() All cables are designed to ensure that the interconnections between fire alarm systems operate correctly for an appropriate length of time in the event of an evacuation. ![]()
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