GB Cu Core Fire - Proof & Insulation Layer Steel Tape Armored Heat-resistance Wire
Specifications
aaProduct StandardEnterprise standard. Fire-proof feature test refers to GB/T19216.21-2003 (equal to IEC60331).
aaUsage
It
-
- Type and Designation
Type
Designation
NHFF
Cu core fire-proof & insulation layer heat-resistance fire-proof cable
NHFF22
Cu core fire-proof & insulation layer steel tape armored heat-resistance fire-proof cable
NHFF32
Cu core fire-proof & insulation layer steel wire armored heat-resistance fire-proof cable
NHFPF
Cu core fire-proof & insulation layer heat-resistance shield fire-proof cable
NHFPF22
Cu core fire-proof & insulation layer steel tape armored heat-resistance shield fire-proof cable
NHFPF32
Cu core fire-proof & insulation layer steel wire armored heat-resistance shield fire-proof cable
- Model explanation
Conductor type
Armoring material
Sheath material
Shielding material
Insulating material
Series code
- Technical performances
Item
Unit
Technical performances
D.C. Resistance of conductor (20)≤
Ω/km
mm2 section
0.5
0.75
1.0
1.5
2.5
4
6
10
16
25
35
50
70
95
120
Resis-tance
36
24.5
18.1
12.1
7.4
4.61
3.08
1.83
1.15
0.727
0.524
0.387
0.268
0.193
0.153
Test voltage
kV/1min
450/750V Test Voltage 2.5KV
600/1000V Test Voltage 3.5KV
Insulation resistance≥
MΩ·km
100
Fire-resistance feature
Grade A (Flame temp 1000°C 90min test 3A fuse wire not break)
Item
Code
Explanation
Series code
NH
Fire-proof cable
Insulating material
F
Fire-proof insulating material
Shielding material
/
P
No shield to be omitted
Tin-plated woven Cu wire
Sheath material
F
(F46) F46
Armoring material
22
32
Steel tape armored
Thin steel wire armored
Conductor type (fill in the brackets)
A
B
Single strand conductor
Twisted conductor
E.G.1: Five core1.0mm2 type A conductor heat-resistance fire-proof cable is described as: NHFF 5×1.0(A)
E.G.2: Five core 120mm2 Cu conductor steel wire armored Tin-plated woven Cu wire shield heat-resistance fire-proof cable is described as:NHFPF22 5×120
-
Application characteristics
- Operating temp: Long time use 200°C, short time use 1000°C 90 minutes.
- Rated voltage U0/U: 450/750V, 600/1000V
- Min. ambient temp: fixed installation -60°C, non-fix installation -20°C.
- Min. bending radius: Non-armored cable≥10 times the cable outer dia.
Armored cable ≥12 times the cable outer dia.
- Specifications cable
Type
Nominal cross section mm2
0.5
0.75
1.0
1.5
2.5
4
6
10
16
25
35
50
70
95
120
Core number
NHFF
2~61
2~10
1~5
NHFF22
—
4~61
2~10
2~5
NHFF32
—
4~61
4~10
3~5
NHFPF
2~61
2~10
1~5
NHFPF22
—
4~61
2~10
2~5
NHFPF32
—
4~61
4~10
3~5
- Delivery lengths
Non-armored cable is 500m armored cable is 200m, shortage length more than 30m may be delivered but not exceed 10% of the total length delivered special requirement to be discussed between the supplier and the buyer.
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