BTTWY Mineral Insulated Power Cable OEM ODM OBM Mineral Insulated Copper Cable

BTTWY is a mineral-insulated, metal-sheathed low-voltage cable commonly used in fire-resistant and high-reliability low-voltage circuits. It is suitable for emergency power supplies, life-safety feeders, and critical building power systems that can operate stably under harsh high-temperature conditions, meeting project standard requirements.

Critical circuits require better protection than standard insulation. BTTWY mineral-insulated cables are designed for demanding low-voltage lines where fire resistance, long-term reliability, and safer system operation are primary procurement considerations in public buildings and infrastructure projects.

BTTWY is generally considered a mineral-insulated (MI) metal-sheathed low-voltage power cable. The MI construction uses inorganic mineral insulation as the primary medium within a continuous metal sheath, rather than relying primarily on polymer insulation. This construction is commonly used in life-safety and emergency services because it ensures reliable circuit operation under fire exposure conditions, according to the acceptance plan. Depending on the route, handling requirements, and project requirements, an outer protective layer may be needed to improve abrasion resistance, facilitate identification, and installation.

• Emergency lighting and evacuation route power supply
• Fire control room power supply and critical monitoring circuits
• Fire pump and critical fire equipment feeders
• Smoke exhaust fan and booster system feeders
• Elevator emergency power supply and critical vertical transportation circuits
• Hospitals, public places, commercial buildings, and high-occupancy buildings
• Metro stations, tunnels, airports, and transportation hubs requiring fire-resistant low-voltage cables

• Emergency shafts, shafts, and protected service corridors
• Basements, machine rooms, and areas with dense cable distribution
• Environmental project objectives requiring reduced smoke risk and improved line reliability (outer layer requirements depend on specific specifications)

1. Conductor Preparation
   The copper conductor is treated to meet resistance and dimensional targets.
2. Mineral Insulation Filling and Compacting
   Inorganic mineral insulation material is filled and compacted around the conductor to form the primary dielectric structure.
3. Metallic Sheath Formation
   A continuous metallic sheath is formed around the insulated core wires to provide sealing and protection.
4. Stabilization and Dimensional Control
   The cable undergoes stabilization and dimensional control to ensure consistent electrical performance and installation operation.
5. Optional Outer Sheath
   A protective layer may be applied to improve abrasion resistance, facilitate identification, and expedite installation.
6. Routine Inspections
   Typical inspection items include conductor resistance, electrical testing according to specified standards, sheath continuity verification, dimensional inspection, and marking inspection.

• 1 Core / 2 Core / 3 Core / 4 Core / 5 Core (Depending on Project)

• 1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240

1. Confirm required fire resistance requirements and acceptance criteria (fire resistance time/rating and test methods)
2. Confirm voltage rating and system configuration
3. Select core count based on circuit design and neutral/protective conductor layout
4. Based on current and line length Select cross-sectional area based on voltage, allowable voltage drop, and installation conditions.
5. Confirm the wiring environment and whether sheathing is required.
6. Confirm the termination kit and accessory requirements for MI cables.
7. Plan the length to minimize joints on critical lines.
8. Confirm the documentation package required for inspection, approval, and delivery.

JinHong cable packaging is provided in the form of wooden reels, corrugated boxes, and coils. The cable ends are sealed with BOPP self-adhesive tape and a non-hygroscopic sealing cap to protect the cable ends from moisture. We can print the required marks on the outside of the barrel with waterproof material according to customer requirements.