Shanghai Xinyi Special Cable Co., Ltd
Tel：021-67276901
Fax：021-67276902
Phone：13651666933
Address: No. 828, Yuegong Road, Jinshan Industrial Zone, Shanghai, China
Flexible mineral insulated fireproof cable BTLY（NG-A）
4.1Product Overview
4.1-1 Product Standard
GB/T12666.6 GB/T12706-2008 GB/T18380-2008
GB/T19216-2003 IEC331 BS6387-2013
Q31/0116000686C003-2017（
4.1-2 Definition
Flexible mineral insulation fire-proof cable BBTRZ is composed of copper strand conductor, inorganic mineral insulation, mineral compound filling, low smoke halogen-free outer sheath.
4.1-3 Structure
1. stranded conductor
2. Mineral insulation layer
3. Mineral filling layer
4. Low smoke halogen-free oversheath
Cable type composition:
B B T R Z- 0.6/1KV -5X16
Specification
Rated voltage Light load 500V Heavy load 600-1000v
Structural characteristic code Light load Q Heavy load Z
Hinged type
Conductor material cod Copper conductor
Inorganic mineral belt wrapping
Distribution cable, power cable series
See the cable notation examples in the following table
|
Names |
Examples |
|
BBTRZ flexible mineral insulated fire cable with rated voltage 0.6/1kv 5X16mm |
BBTRZ-0.6/1-5X16 |
4.1-4 features
electrical specification
Rated operational voltage ：Light load 450/750 v; Heavy load 0.6/1 kv
Rated current: single core 0-1800 A; multi-core 0-1362 A
Insulation resistance: insulation resistance ≥100MΩ·km; cable length <100 m, insulation resistance ≥1000
Power frequency withstand voltage :450/750 v cable and the 0.6/1 kv cable apply 2000 v and 3500 AC voltages respectively between phase and phase, phase and copper sheath for 15 min, without breakdown.
Operating temperature :-40℃-90℃; when short circuit (maximum duration not exceeding 5 s), maximum temperature of copper core cable conductor not exceeding 1000℃.
Rated power: Hz 49-61
Bending radius: cable bending radius 6-20 D
Fire resistance
According to the national experimental method of fire resistance test of wire and cable combustion: GB/T19216.21-2003 selection flame temperature 950 C~1000 C, recommended burning time of 180 min， BBTRZ cable line maintain integrity.
According to British BS6387-2013/BS8491-2008 standards,BBTRZ cables shall meet the following requirements:
C class of simple fire resistance :950 C±40 C 180min;
W class of fire and water resistance :650 C±40 C 15min;
Z class of fire resistance and mechanical vibration :950 C±40 C 15min
4.1 5 advantages
·High temperature resistant,
The integrity of the line can be maintained at the flame temperature of 950~1000℃ for 180 minutes.
·flexible and easy to bend
The conductor of the cable is made of mature multi-strand flexible copper wire stranded technology, and the outer sheath is made of new halogen-free special material extruded and wrapped, which has the characteristics of softness, and will not be cracked and damp.
·Large Current-Carrying Capacity
Compared with cables of the same section, BBTRZ flexible mineral insulated cable can not only transmit higher current, but also can withstand larger overload.
·large section with multiple cores
Because of the use of advanced equipment and technology, the multi-core cable can reach 5X300mm, the construction is more convenient, economic, and consistent with the ordinary cable laying and installation.
·the continuous length is long
he cable length can be customized according to the requirements of the buyer. The cable is wound on the cable disk in a coil, without adding cable connector in the middle, eliminating the potential safety hazard
4.2 Design Selection
Detailed data refer to section 1.2
4.3 Technical parameters
One core cable
|
Nominal cross section area/mm2 |
Nominal thickness of the core insulated/mm |
Nominal thickness with insulation/mm |
Approximate outer diameter of cable/mm |
㎜ KG/mm |
Cable carrying capacity in open air A
|
|
1X16 |
1.1 |
- |
10.5 |
344 |
95 |
|
1X25 |
1.1 |
- |
12.1 |
458.2 |
125 |
|
1X35 |
1.2 |
- |
13.1 |
564.6 |
155 |
|
1X50 |
1.3 |
- |
15.4 |
725.3 |
190 |
|
1X70 |
1.3 |
- |
17.8 |
948 |
240 |
|
1X95 |
1.3 |
- |
19.6 |
1213.2 |
295 |
|
1X120 |
1.3 |
- |
20.6 |
1472.4 |
345 |
|
1X150 |
1.5 |
- |
23.2 |
1770.1 |
395 |
|
1X185 |
1.5 |
- |
24.5 |
2159.9 |
460 |
|
1X240 |
1.5 |
- |
27.1 |
2717.8 |
545 |
|
1X300 |
1.8 |
- |
30.2 |
3339.6 |
630 |
|
1X400 |
1.8 |
- |
32.7 |
4198 |
730 |
|
1X500 |
2.0 |
- |
37.2 |
5334.6 |
845 |
|
1X630 |
2.0 |
- |
40.5 |
6720.2 |
970 |
Note：the temperature of environment is 30℃ while that of the metal sheath is 70℃.
4 core cable
|
Nominal cross section area/mm2 |
Nominal thickness of the core insulated/mm |
Nominal thickness with insulation/mm |
Approximate outer diameter of cable/mm |
KG/mm |
Cable carrying capacity in open air A
|
|
4X2.5 |
0.45 |
0.45 |
10.7 |
376.8 |
32 |
|
4X4 |
0.45 |
0.45 |
11.3 |
476.7 |
40 |
|
4X6 |
0.45 |
0.45 |
13 |
578.3 |
52 |
|
4X10 |
0.55 |
0.55 |
16.5 |
787.9 |
69 |
|
4X16 |
0.55 |
0.55 |
19 |
960.8 |
88 |
|
4X25 |
0.55 |
0.55 |
22.1 |
1398 |
115 |
|
4X35 |
0.6 |
0.6 |
25.6 |
1834.8 |
145 |
|
4X50 |
0.65 |
0.65 |
29.5 |
2367.8 |
180 |
|
4X70 |
0.65 |
0.65 |
32.1 |
3356.8 |
225 |
|
4X95 |
0.65 |
0.65 |
36.3 |
4445.9 |
275 |
|
4X120 |
0.65 |
0.65 |
39 |
5468.8 |
320 |
|
4X150 |
0.75 |
0.75 |
41.4 |
6835.8 |
360 |
|
4X185 |
0.75 |
0.75 |
44.4 |
8390.6 |
415 |
|
4X240 |
0.75 |
0.75 |
51.2 |
10080.8 |
490 |
Note：the temperature of environment is 30℃ while that of the metal sheath is 70℃.
3+1 core cable
|
Nominal cross section area/mm2 |
Nominal thickness of the core insulated/mm |
Nominal thickness with insulation/mm |
Approximate outer diameter of cable/mm |
KG/mm |
Cable carrying capacity in open air A
|
|
3X16+1X10 |
0.55 |
0.55 |
18.8 |
1002 |
88 |
|
3X25+1X16 |
0.55 |
0.55 |
21.8 |
1399.7 |
115 |
|
3X35+1X16 |
0.6 |
0.6 |
24.6 |
1678.8 |
145 |
|
3X50+1X25 |
0.65 |
0.65 |
26.8 |
2178.9 |
180 |
|
3X70+1X35 |
0.65 |
0.65 |
31.7 |
2956.8 |
225 |
|
3X95+1X50 |
0.65 |
0.65 |
35.3 |
4076.9 |
275 |
|
3X120+1X70 |
0.65 |
0.65 |
39.5 |
5107.9 |
320 |
|
3X150+1X70 |
0.75 |
0.75 |
41.6 |
6076.9 |
360 |
|
3X185+1X95 |
0.75 |
0.75 |
44.7 |
7545.9 |
415 |
|
3X240+1X120 |
0.75 |
0.75 |
48.3 |
9406.8 |
490 |
|
3X300+1X150 |
0.9 |
0.9 |
53.7 |
12075.9 |
565 |
Note：the temperature of environment is 30℃ while that of the metal sheath is 70℃.
5 core cable
|
Nominal cross section area/mm22 |
Nominal thickness of the core insulated/mm |
Nominal thickness with insulation/mm |
Approximate outer diameter of cable/mm |
KG/mm |
Cable carrying capacity in open air A
|
|
5X2.5 |
0.45 |
0.45 |
13.2 |
450.7 |
32 |
|
5X4 |
0.45 |
0.45 |
14.3 |
578.3 |
40 |
|
5X6 |
0.45 |
0.45 |
16.5 |
713.9 |
52 |
|
5X10 |
0.55 |
0.55 |
17.9 |
917.9 |
69 |
|
5X16 |
0.55 |
0.55 |
22.6 |
1217.8 |
88 |
|
5X25 |
0.55 |
0.55 |
27.2 |
1857.8 |
115 |
|
5X35 |
0.60 |
0.60 |
31.3 |
2337.8 |
145 |
|
5X50 |
0.65 |
0.65 |
32.6 |
3100.7 |
180 |
Note：the temperature of environment is 30℃ while that of the metal sheath is 70℃.
4+1 core cable
|
Nominal cross section area/mm22 |
Nominal thickness of the core insulated/mm |
Nominal thickness with insulation/mm |
Approximate outer diameter of cable/mm |
KG/mm |
Cable carrying capacity in open air A
|
|
4X16+1X10 |
0.55 |
0.55 |
21.4 |
1145.8 |
88 |
|
4X25+1X16 |
0.55 |
0.55 |
23.7 |
1698.9 |
115 |
|
4X35+1X16 |
0.6 |
0.6 |
27.4 |
2178.9 |
145 |
|
4X50+1X25 |
0.65 |
0.65 |
29.4 |
2839 |
180 |
|
4X70+1X35 |
0.65 |
0.65 |
33 |
3869.7 |
225 |
|
4X95+1X50 |
0.65 |
0.65 |
39.6 |
5378.9 |
275 |
|
4X120+1X70 |
0.65 |
0.65 |
40.9 |
6684.9 |
320 |
|
4X150+1X70 |
0.75 |
0.75 |
43.5 |
7957.4 |
360 |
|
4X185+1X95 |
0.75 |
0.75 |
45.7 |
9867.3 |
415 |
|
4X240+1X120 |
0.75 |
0.75 |
51.3 |
11898.8 |
490 |
|
4X300+1X150 |
0.9 |
0.9 |
56.2 |
15585.4 |
565 |
Note：the temperature of environment is 30℃ while that of the metal sheath is 70℃.
3+2 core cable
|
Nominal cross section area/mm2 |
Nominal thickness of the core insulated/mm |
Nominal thickness with insulation/mm |
Approximate outer diameter of cable/mm |
KG/mm |
Cable carrying capacity in open air A
|
|
3X16+2X10 |
0.55 |
0.55 |
21.2 |
1079.8 |
88 |
|
3X25+2X16 |
0.55 |
0.55 |
23.2 |
1567.9 |
115 |
|
3X35+2X16 |
0.6 |
0.6 |
25.5 |
1960.8 |
145 |
|
3X50+2X25 |
0.65 |
0.65 |
28.1 |
2572.9 |
180 |
|
3X70+2X35 |
0.65 |
0.65 |
32.1 |
3586.9 |
225 |
|
3X95+2X50 |
0.65 |
0.65 |
38.9 |
4804.4 |
275 |
|
3X120+2X70 |
0.65 |
0.65 |
40.6 |
6051.8 |
320 |
|
3X150+2X70 |
0.75 |
0.75 |
42.7 |
7055.2 |
360 |
|
3X185+2X95 |
0.75 |
0.75 |
45.2 |
8945.8 |
415 |
|
3X240+2X120 |
0.75 |
0.75 |
50.6 |
10088.4 |
490 |
|
3X300+2X150 |
0.9 |
0.9 |
56.1 |
14674.9 |
565 |
Note：the temperature of environment is 30℃ while that of the metal sheath is 70℃.
