First, product features and uses

This product has high fire resistance and can withstand short-circuit and short-circuit faults within a certain period of time under direct flame combustion. Therefore, it is beneficial to reduce losses in the event of fire. Low-smoke halogen-free cables are environmentally friendly cables, especially Applicable to electric power, large buildings, railways, ships and other industries that require high fire protection.

Second, product implementation standards

Q/HHTZH009.2

Fire resistance meets the requirements of GB/T19666-2005 (IEC331)

Third, the use of characteristics

1、AC rated voltage:U₀/U 0.6/1kV

2, the highest long-term working temperature: flame retardant PVC insulation and sheath 70°C and 105°C; fluoroplastic insulation and sheath 200°C and 260°C; cross-linked polyethylene insulation 90°C; low-smoke halogen-free flame retardant polyolefin 70°C; low smoke zero halogen flame retardant crosslinked polyolefin 90°C and 125°C.

3, the minimum ambient temperature: flame retardant PVC sheath: fixed laying -40°C, non-fixed laying -15°C; fluoroplastic insulation and sheath: fixed laying -60°C; non-fixed laying -20°C.

4, fire resistance characteristics:

5. The cable installation temperature is not lower than 0°C.

6. The refractory layer is between the conductor and the insulation. The insulation can be appropriately thinned. The thickness after thinning is not less than 80% of the nominal thickness.

7. Allowable bending radius recommended for laying: non-armored cable is not less than 6 times the outer diameter of the cable;

The armored cable is not less than 12 times the outer diameter of the cable;

The fluoroplastic insulation and sheathing cable is not less than 8 times the outer diameter of the cable.

Fourth, the basic model and name

Note: Add 22 after armored cable model and P after shielding cable type.

Five: code name and meaning

Six: main technical indicators