High temperature resistant fireproof cables
A, product characteristics and USES:
High temperature resistant fireproof cablesIs fit for ac rated voltage up to and including 300/500, signal detection in high temperature environment.Especially suitable for fire and security systems to protect circuit and the control of power transmission line.
Second, the product standards:
High temperature resistant fireproof cable according to the standard Q/ZTHH10-2005, refractory characteristics conform to the requirements of the GB12666.6-90 (IEC331).
3, high temperature resistant fireproof cables use features:
1, the working temperature: long-term use of 200 ℃;
2, short-term use 1000 ℃ 90 minutes;
3, rated voltage Uo/U: 300/500 v.
4, the lowest temperature: fixed installation to 60 ℃ the fixed installation - 20 ℃;
5, minimum bending radius: the armored cable should not less than 10 times of cable diameter;
6, armored cable should not less than 12 times of cable diameter.
Four, the main technical indicators:
Performance of the project | unit | Technical indicators | |||||
Conductor dc block | Ω/km | Cross section was | 0.5 | 0.75 | 1.0 | 1.5 | 2.5 |
resistance | 36.0 | 24.5 | 18.1 | 12.1 | 7.41 | ||
Test voltage | kv/1min | 1.5 | |||||
Insulation resistance | M Ω. Km | 100 | |||||
Refractory properties can | Class A (flame temperature of 1000 ℃ test 3 A fuse is 90 minutes) |
Five, the type and name:
model | The name says |
NHFF | High temperature resistant fireproof cables copper fire insulation protection |
NHFF22 | Copper fire insulation layer steel tape armoured high temperature resistant fireproof cables |
NHFF32 | Copper fire insulation layer of fine steel wire armoured high temperature resistant fireproof cables |
NHFP1F | Copper core high-temperature shield fire cable fire insulation protection |
NHFP1F22 | Copper fire insulation layer steel tape armoured high-temperature shielded cable fire prevention |
NHFP1F32 | Copper fire insulation layer of fine steel wire armoured high-temperature shielded cable fire prevention |
Note: this unit in addition to the production of high temperature resistant fireproof cables, also produce rated voltage 300/450 common fireproof cables, writing models need to change the F to V, such as the NHVV, NHVV22.