NH-KVV is a type of fire-resistant control cable used to ensure the continued operation of control and command circuits during a fire. Its survival time depends on the specific requirements outlined in relevant standards. The cable is commonly constructed with copper conductors, a mica-based fire-retardant layer, PVC insulation, and an outer PVC sheath. Thanks to its design, NH-KVV is well-suited for use in emergency control systems and critical support circuits in both buildings and industrial settings. It is especially valuable in applications that demand reliable circuit performance to support occupant evacuation, fire safety systems, and the operation of vital equipment.
Applications
NH cable is suitable for electrical appliances, instruments, electronic equipment, and automation devices with AC rated voltage of 300/500V and below.
This product is suitable for installation and use in systems with high fire protection requirements.
These types of cables can keep the circuit from short circuiting for a certain period of time in the event of an open flame, which saves time for the timely evacuation of personnel and property and greatly reduces the degree of fire damage.
Conditions of use
1) The long-term operating temperature of the conductor is 70℃.
2) The maximum temperature of the cable conductor during a short circuit (with a minimum duration of 5 seconds) shall not exceed 160℃.
3) The temperature for cable laying shall not be lower than 0℃. When laying below 0℃, preheating should be carried out first. Bending radius: Multi core cable ≥ 6D. Among them; D is the outer diameter of the cable in millimeters, and d is the outer diameter of the conductor in millimeters.
Packaging
Finished product + wooden barrel packaging
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