Fire Resistant XLPE Insulated PVC Sheathed Power Cable

For decision makers looking for a reliable China supplier for lifeline projects such as hospitals, subways, and high-rise buildings, choosing Yilan Cable's NHYJV durable Fire Resistant XLPE Insulated PVC Sheathed Power Cable means you are working directly with a factory with deep technical capabilities. We can provide you with products that comply with the strict international standard IEC 60331.

What is the Fire Resistant XLPE Insulated PVC Sheathed Power Cable?

Our customized NHYJV cable is not an ordinary cable, but a functional safety cable. In the event of a fire, when the common cable has already been fused and failed, it can still maintain the circuit integrity for a specified period of time (such as 90 or 120 minutes), and continuously supply power to the most critical life safety equipment. This is at the expense of ordinary electrical performance, in exchange for the survival of the extreme conditions.

Structure and Advantages

Conductor: High-purity oxygen-free copper to ensure excellent electrical conductivity.

Refractory Layer (Core Soul): The conductor is tightly wrapped with a refractory mica tape. This is the key to achieving a fire resistant function. In a hot flame, the mica tape burns into a strong, ceramic-like insulating shell that surrounds the conductors and prevents short circuits, thus maintaining electricity even after the insulation is burned.

Insulation (YJ): XLPE is used to provide long-term temperature resistance up to 90°C and excellent electrical characteristics, ensuring efficient operation of the cable under normal conditions.

Sheath (V): A polyvinyl chloride (PVC) outer sheath that provides mechanical protection and an identification color (usually orange or red).

Product parameters:

Fire resistance rating: in accordance with GB/T 19216/IEC 60331 standard, can keep the line intact in the flame of 750-800℃ (common N90 level).

Rated Voltage: 0.6/1 kV.

Long-term operating temperature: 90°C.

Short circuit temperature: ≤250°C (within 5 seconds).

Product Benefits

1.Safeguarding life: providing continuous power for evacuation, rescue and initial fire fighting in a fire, and is a statutory mandatory wiring of fire fighting equipment.

2.High Temperature Stable Operation: XLPE insulation ensures that the Fire Resistant XLPE Insulated PVC Sheathed Power Cable is stable in normal high temperature environments or in the event of overload.

3.High stability: stable structure, excellent electrical performance, high current carrying capacity.

Selection Considerations

We have to be very clear about this in a professional way: "NH" and "ZR" are two completely different security concepts. "Flame-retardant" is to prevent the spread of fire along the cable, while "fire-resistant" is to ensure that electricity continues in the flame. The PVC sheath of NHYJV cables can generate halogen fumes when burned.

If the project only requires stopping the spread of fire along the cable, flame retardant cable (e.g. ZR-YJV) shall be selected.

If the project requires continuous power supply in the event of a fire and requires environmental protection (low smoke zero halogen), a higher rated WDZN-YJY (low smoke zero halogen fire resistant cable) must be selected.