Fire-resistant Cables
Fire-resistant Cables

Fire-resistant Cables

Inorganic mineral insulated cables, also known as flexible fire-resistant cables, have conductorsstranded from multiple copper wires, with multiple layers of mica tape as the insulation. The micatape uses fiberglass cloth as the base material, and the outer sheath is formed by longitudinallywrapping and continuously welding a copper tape, which is then pressed into a spiral shape.

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Descriptions：

（I）RTRTTZ, YTTW Flexible Mineral Insulated Corrugated Copper Sheathed Fire - resistant Cables

Product Introduction

Inorganic mineral insulated cables, also known as flexible fire-resistant cables, have conductorsstranded from multiple copper wires, with multiple layers of mica tape as the insulation. The micatape uses fiberglass cloth as the base material, and the outer sheath is formed by longitudinallywrapping and continuously welding a copper tape, which is then pressed into a spiral shape.

Cable Models and Names

Flexible metal-sheathed inorganic mineral insulated fire-resistant cable models include RTTZ, RTTYZ,RTTTVZ, YTTW, YTTWV, WD-YTTWY, BTTW, BTTRZ, RTTW, BTTE, BTWTZ, BTWTYZ, GAN-BTGZ,GAN-BTGY, HFTGB, HFTGBY, etc.

Scope of Application

Mainly suitable for high-rise buildings in large cities, entertainment venues, and numeroushigh-quality and high-safety construction projects with a rated voltage of 0.6/1kV, where powersupply must remain uninterrupted during fires while ensuring safety.
Standards Implemented
GB/T34926-2017 National Standard Mica Tape Mineral Insulated Corrugated Copper Sheath Cablesand Terminals with Rated Voltage 0.6/1kV and Below.
JG/T 313-2014 China Building Industry Industry Standard Inorganic Mineral Insulated Cables andTerminals with Metal Sheath and Rated Voltage 0.6/1kV and Below.
Q/ZND 002-2018 Enterprise Standard.
Cable Schematic Diagram
（II） NG-A(BTLY) Aluminum Sheath Continuous Extrusion Mineral Insulated Fire-resistant Cable
Product Introduction
The NG-A(BTLY) cable, also known as an isolated (flexible) mineral insulatedfire-resistant cable, features excellent fire resistance, high mechanical strength,and good flexibility. It is suitable for power transmission and distribution linesin fire-fighting and emergency systems, as well as fire-proof, explosion-proof, andhigh-temperature environments.
Isolated (flexible) mineral insulated fire-resistant cable models include NG-A(BTLY),WDZAN-BTLY, NG-A, BTLY, WDZN-BTLY, etc.
Standards Implemented
Q/ZND 002-2018 Enterprise Standard.
BS 6387 and 8491 performance requirements for cables to maintain circuit integrityunder fire conditions.
GB/T12706-2008 Extruded Insulation Power Cables and Accessories with Rated Voltage1kV (Um=1.2kV) to 35kV (Um=40.5kV).
Product Characteristics
Excellent fire resistance: Uses inorganic mineral insulation materials,non-combustible, and provides continuous power supply during fires, gaining time forpersonnel evacuation and fire rescue.
High temperature resistance: Can operate stably in high-temperature environments forlong periods, withstand 950-1000℃, remain energized for 180 minutes without breakdownunder a 950℃ flame, and resist water spray and heavy object impacts.
Good insulation performance: Exhibits excellent electrical insulation, highinsulation resistance, and effectively prevents leakage and short-circuit accidents.
Cable Schematic Diagram
（III） BBTRZ Flexible Mineral Insulated Fire-resistant Cables
Cable Models and Names
Flexible mineral insulated fire-resistant cable models include BBTRQ, BBTRZ, TBTRZY,etc.
Standards Implemented
Q/ZND 002-2018 Enterprise Standard.
Relevant national standards and the performance requirements of BS6387 and 8491 forcables to maintain circuit integrity under fireconditions.
Cable Schematic Diagram

Key words:

Fire-resistant Cables

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Overhead Conductors

Related Products

RTRTTZ, YTTW Flexible Mineral Insulated Corrugated Copper Sheathed Fire - resistant Cables

RTRTTZ, YTTW Flexible Mineral Insulated Corrugated Copper Sheathed Fire - resistant Cables

NG-A(BTLY) Aluminum Sheath Continuous Extrusion Mineral Insulated Fire-resistant Cable

NG-A(BTLY) Aluminum Sheath Continuous Extrusion Mineral Insulated Fire-resistant Cable

BBTRZ Flexible Mineral Insulated Fire-resistant Cables

BBTRZ Flexible Mineral Insulated Fire-resistant Cables

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