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1. Conductor 2. Insulation 3. Wrapping layer 4. Filler 5. Sheath 6. Screen
4. Standard
The products with basic type are designed and manufactured according to GB9330-88. In addition to the requirement of basic construction products, the flame-retardant and fire-resistant cables shall be complying with flame-retardant and fire-resistant property specified in relevant standards.
5. Use
* These cable are Suitable for control, monitoring and protection circuits with rated voltage U0/U 450/750V and below as control and protection lines between electric appliances.
* The flame-retardant type cables are not easy to burn or their flame propagation is limited only in a certain length. Their flame-retardant property is divide into Class A, B and C. Class C is has the best flame-retardant property.
* The fire-resistant cables can not only operate in normal condition, but also can operate in fire during a certain time. The fire-resistant property divides into Class A and Class B. Class A: 950～1000℃; Class B: 750～800℃.
6. Use Characteristics
* Rated Voltage U0/U is 450/750V
* Max. permissible operation temperature of conductor is 70℃.
* Ambient temperature of installation is not lower than 0℃.
* Permissible bend radius:
－For no-armored cable: Not less than 6D.
－For armored or copper shielded cable: Not less than 12D.
－ For shielded flexible cable: Not less than 6D.
D- Outer diameter of cable |
