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Fire-retarding control cable
Fire-Retarding Control Cable
Application

The cables are designed for connection wires of power distribution equip-ments for controlling, monitoring, protecting circuits with A .C. rated voltage 450/750V and below where fire retardation is requested.
Operating features
●  AC Rated voltage Uo/U 450/750V.
●  Testing flame temperature: Categoty A is 950℃ -1000℃
Categoty B is 750℃ -800℃
●  Permissive continuous conductor working temperature of PVC, PE insulated cable is not more than 70℃ , permissive continuous conductor working temperature XLPE is not more than 90℃ .
●  The lowest ambient temperature of cable installation is 0℃
●  Min.bending radius of cable installation is:
Non-armoured cable    6D mm;
Armoured cable       12D mm.
In the formula: D-actual overall diameter of cable, mm.

Descriptive method of cable and sketches of product construction



Note:P,P2 and R mean braiding screen, copper tape screen and flexible structure respectively. YJ and V mean XLPE and PVC,The company can produce category A or B fire-retarding cables upon requests

1 ) Construction of insulated core


2 ) Diagram of cable contruction


NHA B –KYJV     NHA B -KYVP2-22
NHA B -KVV 
Fire-Retarding Control Cable
Specification
Rated
voltage
V
Type
NH-A NH-B
Nom.cross-area of conductor  (mm2)
1.0 1.5 2.5 4 6 10
No .of cores
PVC PE
Insulation
450/750V
KVV 2~61  2~61  2~61  2~14  2~14  2 ~10
KVVP 2~61  2~61  2~61  2~14  2~14  2 ~10
KVVP2 4~61  4~61  4~61  4~14  4~14  4 ~10
KVV22 7~61  7~61  4~61  4~14  4~14  4 ~10
KVVP 4~61  4~61  4~61  - - -
KVVRP 4~61  4~48  4~48  - - -
KVVP2-22 4~61  4~61  4~61  4~14  4~14  4 ~10
XLPE
Insulation
450/750V
KYJV 2~61  2~61  2~61  2~14  2~14  2 ~10
KYJVP 2~61  2~61  2~14  2~14  2~10  2 ~10
KYJVP2 4~61  4~61  4~14  4~14  4~10  4 ~10
KYJV22 7~61  7~61  4~61  4~14  4~14  4 ~10
KYJVP 4~61  4~61  4~61  - - -
KYJVRP 4~61  4~48  4~48  - - -
KYJVP2-22 4~61  4~61  4~61  4~14  4~14  4 ~10
Construction and main technical parameter
Nom. 
Cross 
section
mm2
Construction 
of conductor
DC resistance 
of conductor 
at 20℃ (Max.)
Ω/km
Nom. wall 
thickness of insulaion
mm
Min.Insulation
 resistance at 70℃
MΩ·km
Category No./Nom.Dia
 of strand
mm
PVC PE XLPE
1.0 1 1/1.13 18.1 0.6 0.7 0.7 0.011
1.0 2 7/0.43 18.1 0.6 0.7 0.7 0.013
1.0 5 32/0.2 19.5 0.6 0.7 0.7 0.010
1.5 1 1/1.38 12.1 0.7 0.7 0.7 0.011
1.5 2 7/0.52 12.1 0.7 0.7 0.7 0.010
1.5 5 30/0.25 13.3 0.7 0.7 0.7 0.010
2.5 1 1/1.78 7.41 0.8 0.7 0.7 0.010
2.5 2 7/0.68 7.41 0.8 0.7 0.7 0.009
2.5 5 50/0.25 7.98 0.8 0.7 0.7 0.009
4 1 1/2.25 4.61 0.8 0.7 0.7 0.0085
4 2 7/0.85 4.61 0.8 0.7 0.7 0.0077
6 1 1/2.76 3.08 0.8 0.7 0.7 0.0070
6 2 7/1.04 3.08 0.8 0.7 0.7 0.0065
10 2 7/1.35 1.83 1.0 0.7 0.7 0.0065

Nom. Sheath thickness, approx. Diameter and approx. weight
Construction NHA(B)-KYJV NHA(B)-KVV NHA(B)-KVVP2-22
No. of
cores
mm2
Nom.
 cross
section
mm2
Sheath
thickness
mm
Approx 
O.D.
mm
Approx
 O.D.
mm
Sheath
thickness
mm
Approx 
O.D.
mm
Approx.
weight
kg/km
Sheath
thickness
mm
Approx
 O.D.
mm
Approx.
weight
kg/km
2 1.0 1.2 10.4 142 1.2 10.0 136 1.5 14.4 318
3 1.0 1.5 11.6 171 1.2 10.6 154 - - -
4 1.0 1.5 12.6 199 1.5 12.1 197 1.5 15.8 385
5 1.0 1.5 13.6 217 1.5 13.1 219 1.5 16.8 422
7 1.0 1.5 14.7 243 1.5 14.1 249 1.5 17.9 468
8 1.0 1.5 15.8 274 1.5 15.2 282 1.7 19.3 531
10 1.0 1.7 18.8 383 1.5 17.6 358 1.7 21.8 645
12 1.0 1.7 19.4 395 1.5 18.2 391 1.7 22.3 685
14 1.0 1.7 20.4 445 1.7 19.5 459 1.7 23.2 750
16 1.0 1.7 21.4 518 1.7 20.5 526 1.7 24.2 831
19 1.0 1.7 22.6 566 1.7 21.6 587 1.7 25.3 908
24 1.0 1.7 26.6 707 1.7 25.4 734 2.0 29.4 1150
27 1.0 1.7 27.2 774 1.7 26.0 805 2.0 31.1 1509
30 1.0 1.7 28.2 844 1.7 26.9 879 2.0 32.0 1607
37 1.0 2.0 30.9 1046 2.0 29.5 1090 2.0 34.1 1835
2 1.5 1.5 11.6 176 1.5 11.6 183 1.5 15.3 364
3 1.5 1.5 12.2 201 1.5 12.2 208 - - -
4 1.5 1.5 13.3 234 1.5 13.3 247 1.5 16.9 451
5 1.5 1.5 14.4 257 1.5 14.4 274 1.5 18.0 493
7 1.5 1.5 15.6 291 1.5 15.6 315 1.7 19.6 568
8 1.5 1.5 16.8 330 1.5 16.8 358 1.7 20.8 629
10 1.5 1.7 20.0 466 1.7 20.0 482 1.7 23.8 782
12 1.5 1.7 20.6 477 1.7 20.6 518 1.7 24.4 827
14 1.5 1.7 21.7 539 1.7 21.7 588 1.7 25.4 910
16 1.5 1.7 22.8 629 1.7 22.8 678 1.7 26.6 1018
19 1.5 1.7 24.4 698 1.7 24.4 763 1.7 27.8 1126
24 1.5 1.7 28.4 865 1.7 28.4 949 2.0 32.4 1708
27 1.5 2.0 29.7 989 2.0 29.7 1093 2.2 34.6 1860
30 1.5 2.0 30.7 1079 2.0 30.7 1184 2.2 35.6 1987
37 1.5 2.0 33.0 1288 2.0 33.0 1416 2.2 38.0 2282
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