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BBTRZ Mineral Resistant Fire Cable
BBTRZ Mineral Insulated Cable
Model:
BBTRZ, NG-A(BTLY), BTLY, YTTWY, YTTW
Rated Voltage:
0.6/1 kV (standard), 450/750 V (for some types)
Specification:
Single core: 1.5 mm² – 630 mm²
Multi-core: 1.5 mm² – 400 mm² (cores: 2, 3, 4, 5, 3+1, 3+2, 4+1)
Features:
BBTRZ flexible mineral insulated fire-resistant cable features an inorganic mineral insulated wrapped construction. It is halogen-free and low-smoke, achieving bunched ZA class flame retardance. Fire resistance complies with BS6387 Category C, maintaining circuit integrity for 180 minutes under 950°C flame conditions. Maximum continuous conductor operating temperature is 90°C, and short-circuit temperature can reach 250°C (duration ≤5 s). The cable offers good flexibility, can be supplied in fixed lengths, and is easy to install with a long service life.
Application:
Suitable for high-rise buildings, subways, airports, power plants, fire-fighting systems, and other critical circuits requiring circuit integrity under fire conditions. Can be installed on trays, in conduits, or directly buried.
Model:
BBTRZ, NG-A(BTLY), BTLY, YTTWY, YTTW
Rated Voltage:
0.6/1 kV (standard), 450/750 V (for some types)
Specification:
Single core: 1.5 mm² – 630 mm²
Multi-core: 1.5 mm² – 400 mm² (cores: 2, 3, 4, 5, 3+1, 3+2, 4+1)
Features:
BBTRZ flexible mineral insulated fire-resistant cable features an inorganic mineral insulated wrapped construction. It is halogen-free and low-smoke, achieving bunched ZA class flame retardance. Fire resistance complies with BS6387 Category C, maintaining circuit integrity for 180 minutes under 950°C flame conditions. Maximum continuous conductor operating temperature is 90°C, and short-circuit temperature can reach 250°C (duration ≤5 s). The cable offers good flexibility, can be supplied in fixed lengths, and is easy to install with a long service life.
Application:
Suitable for high-rise buildings, subways, airports, power plants, fire-fighting systems, and other critical circuits requiring circuit integrity under fire conditions. Can be installed on trays, in conduits, or directly buried.
Category:
Product Details
| Type | Voltage | Construction |
| BBTRZ | 0.6/1 kV | Copper conductor mineral insulated wrapped construction LSZH flexible fire-resistant cable (GB/T 34926) |
| NG-A(BTLY) | 0.6/1 kV | Copper conductor mineral insulated aluminium sheath isolated LSZH fire-resistant cable, Class A flame retardant (GB/T 34926) |
| BTLY | 0.6/1 kV | Copper conductor mineral insulated aluminium sheath isolated LSZH fire-resistant cable (GB/T 34926) |
| YTTWY | 0.6/1 kV | Copper conductor mineral insulated corrugated copper sheath LSZH flexible fire-resistant cable (GB/T 34926) |
| YTTW | 0.6/1 kV | Copper conductor mineral insulated corrugated copper sheath flexible fire-resistant cable (GB/T 34926) |
| Note: All above cables comply with GB/T 34926. Fire resistance meets GB/T 19216 and IEC 60331, with reference to BS 6387 and other international fire resistance standards. The IEC standard does not assign specific type designations; Chinese national or industry type names are commonly used. | ||
| Type | Voltage | Number of Cores | Nominal CSA (mm²) |
| BBTRZ | 0.6/1 kV | 1 | 1.5～630 |
| BBTRZ | 0.6/1 kV | 2 | 1.5～185 |
| BBTRZ | 0.6/1 kV | 3 | 1.5～400 |
| BBTRZ | 0.6/1 kV | 4, 5 | 1.5～300 |
| BBTRZ | 0.6/1 kV | 3+1, 3+2, 4+1 | 4～400 |
| NG-A(BTLY) | 0.6/1 kV | same as above | same as above |
| BTLY | 0.6/1 kV | same as above | same as above |
| YTTWY | 0.6/1 kV | same as above | same as above |
| YTTW | 0.6/1 kV | same as above | same as above |
| Note: Higher voltage ratings and special constructions available upon request. | |||
