Detailed Product Description
Heat-resistance Fire-proof Cable
Enterprise standard. Fire-proof feature test refers to GB/T19216.21-2003 (equal to IEC60331).
It is used for signal checking and power transmission at high temp, rated A.C. voltage 0.6/1kV and below. Especially used for transmission line.
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Type
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Designation
|
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NHFF
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Cu core fire-proof & insulation layer heat-resistance fire-proof cable
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NHFF22
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Cu core fire-proof & insulation layer steel tape armored heat-resistance fire-proof cable
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NHFF32
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Cu core fire-proof & insulation layer steel wire armored heat-resistance fire-proof cable
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NHFPF
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Cu core fire-proof & insulation layer heat-resistance shield fire-proof cable
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NHFPF22
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Cu core fire-proof & insulation layer steel tape armored heat-resistance shield fire-proof cable
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NHFPF32
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Cu core fire-proof & insulation layer steel wire armored heat-resistance shield fire-proof cable
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Conductor type
Armoring material
Sheath material
Shielding material
Insulating material
Series code
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Item
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Unit
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Technical performances
|
|
D.C. Resistance of conductor (20)≤
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Ω/km
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mm2 section
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0.5
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0.75
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1.0
|
1.5
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2.5
|
4
|
6
|
10
|
16
|
25
|
35
|
50
|
70
|
95
|
120
|
|
Resis-tance
|
36
|
24.5
|
18.1
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12.1
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7.4
|
4.61
|
3.08
|
1.83
|
1.15
|
0.727
|
0.524
|
0.387
|
0.268
|
0.193
|
0.153
|
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Test voltage
|
kV/1min
|
450/750V Test Voltage 2.5KV
600/1000V Test Voltage 3.5KV
|
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Insulation resistance≥
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MΩ·km
|
100
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Fire-resistance feature
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Grade A (Flame temp 1000℃ 90min test 3A fuse wire not break)
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Item
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Code
|
Explanation
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|
Series code
|
NH
|
Fire-proof cable
|
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Insulating material
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F
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Fire-proof insulating material
|
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Shielding material
|
/
P
|
No shield to be omitted
Tin-plated woven Cu wire
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|
Sheath material
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F
|
(F46) F46
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Armoring material
|
22
32
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Steel tape armored
Thin steel wire armored
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Conductor type (fill in the brackets)
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A
B
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Single strand conductor
Twisted conductor
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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
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Application characteristics
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Operating temp: Long time use 200℃, short time use 1000℃ 90 minutes.
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Rated voltage U0/U: 450/750V, 600/1000V
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Min. ambient temp: fixed installation -60℃, non-fix installation -20℃.
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Min. bending radius: Non-armored cable≥10 times the cable outer dia.
Armored cable ≥12 times the cable outer dia.
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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
|
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Core number
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|
NHFF
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2~61
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2~10
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1~5
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NHFF22
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—
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4~61
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2~10
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2~5
|
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NHFF32
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—
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4~61
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4~10
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3~5
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NHFPF
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2~61
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2~10
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1~5
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NHFPF22
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—
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4~61
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2~10
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2~5
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|
NHFPF32
|
—
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4~61
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4~10
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3~5
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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.
