Fire resistant power cables, manufacturers of fire-resistant power cables, NHA-VV22 NHB-VV cables can not only pass the B-level fire resistance test, but also pass the level fire resistance test. Our company can provide different levels of fire-resistant cables according to user needs.
Fire resistant power cables, manufacturers of fire-resistant power cablesNHB—VV3*25， The fire-resistant cable series products have the following characteristics: firstly, the fire-resistant performance of the cable is not only achieved through BIn addition to the level of resistance to inflammation test, it can also passGrade fire resistance test, which means our factory can provide different levels of fire-resistant cables according to user needs. Secondly, cables not only have fire-resistant properties, but also possess the flame-retardant properties of flame-retardant cables, that is, throughGB12666.5Burning test of bundled wires and cablesAClass orCBundle like combustion test. Thirdly, in addition to providing fire-resistant cables, our factory can also provide fire-resistant cable connectors and on-site services
Fire resistant power cables, manufacturers of fire-resistant power cablesNHB-VV3*25
| List of varieties of glass fiber mica tape polyvinyl chloride composite insulated fire-resistant power cables |
model |
voltage |
Product Name |
Scope of Application |
fire resistance rating |
NHB—VV |
0.6/1kV |
Glass fiber mica tape PVC composite insulation flame-retardant PVC sheath B-class fire-resistant power cable |
Fixed installation in indoor areas, tunnels, brackets, and pipelines where flame retardancy and fire resistance are required. The long-term working temperature of the cable conductor shall not exceed+70 ℃, the cable laying temperature shall not be lower than 0 ℃, and the cable bending radius shall not be less than 20 times the outer diameter of the cable |
GB12666.6
(Equivalent to IEC331)
Grade B |
NHA - VV |
Glass fiber mica tape PVC composite insulation flame retardant PVC sheath A fire-resistant power cable |
Same as NHB-VV, used in places with strict fire resistance requirements |
GB12666.6
A |
NHB—VV22 |
Glass fiber mica tape with polyvinyl chloride composite insulation, flame-retardant polyvinyl chloride sheath, steel tape armor, Class B fire-resistant power cable. |
Same as NHB-VV, used in places that can withstand mechanical external forces |
GB12666.6
(Equivalent to IEC331)
Grade B |
NHA-VV22 |
Glass fiber mica tape PVC composite insulation flame-retardant PVC sheath steel tape armor A fire-resistant power cable. |
Same as NHB-VV22, used in places with strict fire resistance requirements. |
GB12666.6
A |
|
| List of varieties of glass fiber mica tape polyvinyl chloride composite insulated fire-resistant control cables |
model |
voltage |
Product Name |
Scope of Application |
fire resistance rating |
NHB—KVV |
450/750kV
0.6/1kV |
Glass fiber mica tape PVC composite insulation flame-retardant PVC sheath B-class fire-resistant control cable |
Fixed installation in indoor areas, tunnels, brackets, and pipelines where flame retardancy and fire resistance are required. The long-term working temperature of the cable conductor shall not exceed+70 ℃, the cable laying temperature shall not be lower than 0 ℃, and the cable bending radius shall not be less than 10 times the outer diameter of the cable |
GB12666.6
(Equivalent to IEC331)
Grade B |
NHA-KVV |
Glass fiber mica tape PVC composite insulation flame retardant PVC sheath A fire-resistant control cable |
Same as NHB-KVV, used in places with strict fire resistance requirements |
GB12666.6
A |
NHB—KVV22 |
Glass fiber mica tape PVC composite insulation flame-retardant PVC sheath steel tape armor B-class fire-resistant control cable. |
Same as NHB-KVV, used in places that can withstand mechanical external forces, the bending radius of the cable should not be less than 15 times the outer diameter of the cable. |
GB12666.6
(Equivalent to IEC331)
Grade B |
NHA-KVV22 |
Glass fiber mica tape PVC composite insulation flame-retardant PVC sheath steel tape armor A fire-resistant control cable. |
Same as NHB-KVV22, used in places with strict fire resistance requirements. |
GB12666.6
A |
|
| Main performance indicators of cables |
|
▲ Structure and Performance
The structure and performance of glass fiber mica tape polyvinyl chloride composite insulated fire-resistant power cables refer to the GB12706 standard "Copper core, aluminum core plastic insulated power cables with rated voltage of 35kV and below" (equivalent to IEC502).
The structure and performance of glass fiber mica tape PVC insulated fire-resistant control cables refer to the GB9330 "Plastic Insulated Control Cables" (equivalent to IEC227) standard and GB12706 "Copper core and Aluminum core Plastic Insulated Power Cables with Rated Voltage of 5kV and Below" (equivalent to IEC502) standard.
Fire resistance characteristics
The cable passes the GB12666.6 "Test Method for Fire Resistance Characteristics of Wires and Cables" (equivalent to IEC331)
A (flame temperature 950~1000 ℃, continuous fire supply time of 90 minutes)
B-class (flame temperature 750~800 ℃, continuous fire supply time of 90 minutes)
According to user requirements, it can pass the fire resistance test according to any level of GB12666.6 A or B.
flame retardant performance
The cable passes the GB12666.5 "Combustion Test Method for Bundled Wires and Cables" (equivalent to IEC332-3)
Class A (the sample should have a combustible volume of 7l/m and a flame duration of 40min)
Class B (the sample should have a combustible volume of 3.5l/m and a flame duration of 40 minutes)
Class C (the sample should have a combustible volume of 1.5l/m and a flame duration of 20min)
According to user requirements, cable bundle combustion tests can be conducted in accordance with any of the GB12666.5 Class A, B, C standards or the American IEEE383 standard and Japanese JIS standard.
If users need halogen-free and low smoke performance, we can also provide low hydrogen chloride fire-resistant cables and halogen-free and low smoke fire-resistant cables.
Cable manufacturing length not less than 100m
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