| 产 品 说 明 | |||||||
|
标准:
本产品按国际电工委员会IEC502-1983制造;
耐火特性符合国际电工委员会标准IEC331-1970的规定
适用范围:
本产品适用于在火灾中.要求电缆在着火情况下仍能保持一定时间继续运行.该产品用于额定电压0.6/1kV的电力传输和电力分配线路的固定敷设，如处在750~800℃的火焰燃烧中可正常运行180min，具有防火安全和消防救生的功能。
型号和规格：
电缆型号如下表
|
|||||||
注：单芯用于交流系统，采用铝带铠装电缆规格如下表
|
型号
|
芯数
|
导电线芯标称截面mm2
|
|
NH-VV
|
1
|
1.5~300
10~185
|
|
NH-VV22
|
||
|
NH-VV
|
2
|
1.5~185
4~185
|
|
NH-VV22
|
||
|
NH-VV
|
3
|
1.5~240
2.5~240
|
|
NH-VV22
|
||
|
NH-VV
|
4
|
2.5~240
2.5~15.0
|
|
NH-VV22
|
||
|
NH-VV
|
3+1
|
4~240
2~240
|
|
NH-VV22
|
||
|
NH-VV
|
5
|
2.5~240
2.5~240
|
|
NH-VV22
|
3+1芯电缆中性线芯的截面应符合下表规定
|
标称截面(mm2)
|
标称截面(mm2)
|
||
|
主线芯
|
中性线芯
|
主线芯
|
中性线芯
|
|
4
|
2.5
|
70
|
35
|
|
6
|
4
|
95
|
50
|
|
10
|
6
|
120
|
70
|
|
16
|
10
|
150
|
70
|
|
25
|
16
|
185
|
95
|
|
35
|
16
|
240
|
120
|
|
50
|
25
|
|
|
NH-VV、NH-VLV型 （1芯）
|
导体标称截面mm2
|
绝缘厚度
mm
|
外护层厚度mm
|
电缆外径（近似）kg/km
|
电缆重量（近似）kg/km
|
20℃导体最大直流电阻Ω/km
|
试验电压kV
|
最小绝缘
电阻mΩ.km
|
电缆载流量(A)
|
|
|
地壤敷设
|
空气敷设
|
||||||||
|
1.5
|
0.8
|
1.4
|
8.8
|
89
|
12.1
|
3.5
|
0.00673
|
36.0
|
24.7
|
|
2.5
|
0.8
|
1.4
|
9.2
|
104
|
7.41
|
3.5
|
0.00611
|
47.7
|
32.7
|
|
4
|
1.0
|
1.4
|
10.1
|
134
|
4.61
|
3.5
|
0.00664
|
62.2
|
43.5
|
|
6
|
1.0
|
1.4
|
10.6
|
159
|
3.08
|
3.5
|
0.00602
|
78.6
|
55.1
|
|
10
|
1.0
|
1.4
|
11.9
|
215
|
1.83
|
3.5
|
0.00487
|
108.3
|
77.2
|
|
16
|
1.0
|
1.4
|
13.0
|
284
|
1.15
|
3.5
|
0.00422
|
141.8
|
102.7
|
|
25
|
1.2
|
1.4
|
14.6
|
395
|
0.727
|
3.5
|
0.00431
|
183.6
|
136.7
|
|
35
|
1.2
|
1.4
|
15.8
|
504
|
0.524
|
3.5
|
0.00381
|
222.7
|
164.3
|
|
50
|
1.4
|
1.4
|
17.3
|
670
|
0.387
|
3.5
|
0.00396
|
263.7
|
199.2
|
|
70
|
1.4
|
1.5
|
18.7
|
871
|
0.268
|
3.5
|
0.00354
|
325.0
|
250.1
|
|
95
|
1.6
|
1.5
|
20.9
|
1142
|
0.193
|
3.5
|
0.00351
|
391.7
|
302.0
|
|
120
|
1.6
|
1.6
|
22.6
|
1395
|
0.153
|
3.5
|
0.00316
|
449.8
|
353.9
|
|
150
|
1.8
|
1.6
|
24.6
|
1714
|
0.124
|
3.5
|
0.00323
|
505.5
|
407.2
|
|
185
|
2.0
|
1.7
|
26.8
|
2083
|
0.0991
|
3.5
|
0.00324
|
573.4
|
462.7
|
|
240
|
2.2
|
1.8
|
29.8
|
2657
|
0.0754
|
3.5
|
0.00316
|
667.2
|
554.4
|
NH-VV、NH-VLV型 （2芯）
|
导体标称截面mm2
|
绝缘厚度
mm
|
外护层厚度mm
|
电缆外径（近似）kg/km
|
电缆重量（近似）kg/km
|
20℃导体最大直流电阻Ω/km
|
试验电压kV
|
最小绝缘
电阻mΩ.km
|
电缆载流量(A)
|
|
|
地壤敷设
|
空气敷设
|
||||||||
|
1.5
|
0.8
|
1.8
|
14.8
|
195
|
12.1
|
3.5
|
0.00673
|
26.6
|
20.6
|
|
2.5
|
0.8
|
1.8
|
15.7
|
233
|
7.41
|
3.5
|
0.00611
|
35.0
|
26.8
|
|
4
|
1.0
|
1.8
|
17.5
|
300
|
4.61
|
3.5
|
0.00664
|
44.9
|
35.2
|
|
6
|
1.0
|
1.8
|
18.5
|
361
|
3.08
|
3.5
|
0.00602
|
56.1
|
44.3
|
|
10
|
1.0
|
1.8
|
21.1
|
488
|
1.83
|
3.5
|
0.00487
|
75.0
|
59.6
|
|
16
|
1.0
|
1.8
|
23.2
|
652
|
1.15
|
3.5
|
0.00422
|
95.6
|
77.4
|
|
25
|
1.2
|
1.8
|
26.4
|
906
|
0.727
|
3.5
|
0.00431
|
121.5
|
99.4
|
|
35
|
1.2
|
1.8
|
29.1
|
1162
|
0.524
|
3.5
|
0.00381
|
142.9
|
119.1
|
|
50
|
1.4
|
1.9
|
32.3
|
1550
|
0.387
|
3.5
|
0.00396
|
167.6
|
140.4
|
|
70
|
1.4
|
2.0
|
35.3
|
2014
|
0.268
|
3.5
|
0.00354
|
200.1
|
168.7
|
|
95
|
1.6
|
2.1
|
39.9
|
2643
|
0.193
|
3.5
|
0.00351
|
236.7
|
203.5
|
|
120
|
1.6
|
2.2
|
43.6
|
3247
|
0.153
|
3.5
|
0.00316
|
262.3
|
227.0
|
|
150
|
1.8
|
2.3
|
47.9
|
4003
|
0.124
|
3.5
|
0.00323
|
292.8
|
255.9
|
|
185
|
2.0
|
2.5
|
52.5
|
4874
|
0.0991
|
3.5
|
0.00324
|
328.1
|
289.4
|
NH-VV、NH-VLV型 （3芯）
|
导体标称截面mm2
|
绝缘厚度
mm
|
外护层厚度mm
|
电缆外径（近似）kg/km
|
电缆重量（近似）kg/km
|
20℃导体最大直流电阻Ω/km
|
试验电压kV
|
最小绝缘
电阻mΩ.km
|
电缆载流量(A)
|
|
|
地壤敷设
|
空气敷设
|
||||||||
|
1.5
|
0.8
|
1.8
|
15.7
|
233
|
12.1
|
3.5
|
0.00673
|
22.8
|
17.4
|
|
2.5
|
0.8
|
1.8
|
16.5
|
276
|
7.41
|
3.5
|
0.00611
|
30.0
|
23.1
|
|
4
|
1.0
|
1.8
|
18.4
|
368
|
4.61
|
3.5
|
0.00664
|
38.5
|
30.3
|
|
6
|
1.0
|
1.8
|
19.5
|
443
|
3.08
|
3.5
|
0.00602
|
48.3
|
38.4
|
|
10
|
1.0
|
1.8
|
22.3
|
625
|
1.83
|
3.5
|
0.00487
|
65.5
|
52.3
|
|
16
|
1.0
|
1.8
|
24.6
|
840
|
1.15
|
3.5
|
0.00422
|
84.8
|
69.1
|
|
25
|
1.2
|
1.8
|
28.1
|
1190
|
0.727
|
3.5
|
0.00431
|
108.2
|
89.3
|
|
35
|
1.2
|
1.8
|
30.8
|
1546
|
0.524
|
3.5
|
0.00381
|
129.6
|
107.4
|
|
50
|
1.4
|
1.9
|
34.3
|
2083
|
0.387
|
3.5
|
0.00396
|
151.9
|
128.8
|
|
70
|
1.4
|
2.0
|
37.7
|
2752
|
0.268
|
3.5
|
0.00354
|
184.9
|
158.1
|
|
95
|
1.6
|
2.2
|
42.8
|
3642
|
0.193
|
3.5
|
0.00351
|
220.2
|
191.7
|
|
120
|
1.6
|
2.3
|
46.6
|
4474
|
0.153
|
3.5
|
0.00316
|
250.2
|
220.5
|
|
150
|
1.8
|
2.4
|
51.2
|
5528
|
0.124
|
3.5
|
0.00323
|
279.0
|
249.3
|
|
185
|
2.0
|
2.6
|
56.4
|
6788
|
0.0991
|
3.5
|
0.00324
|
313.1
|
283.7
|
|
240
|
2.2
|
2.8
|
62.9
|
8652
|
0.0754
|
3.5
|
0.00316
|
360.1
|
331.6
|
NH-VV、NH-VLV型 （4芯）
|
导体标称截面mm2
|
绝缘厚度
mm
|
外护层厚度mm
|
电缆外径（近似）kg/km
|
电缆重量（近似）kg/km
|
20℃导体最大直流电阻Ω/km
|
试验电压kV
|
最小绝缘
电阻mΩ.km
|
电缆载流量(A)
|
|
|
地壤敷设
|
空气敷设
|
||||||||
|
2.5
|
0.8
|
1.8
|
17.9
|
336
|
7.41
|
3.5
|
0.00611
|
30.3
|
23.7
|
|
4
|
1.0
|
1.8
|
20.0
|
446
|
4.61
|
3.5
|
0.00664
|
38.9
|
30.5
|
|
6
|
1.0
|
1.8
|
21.3
|
558
|
3.08
|
3.5
|
0.00602
|
48.7
|
38.7
|
|
10
|
1.0
|
1.8
|
24.4
|
784
|
1.83
|
3.5
|
0.00487
|
66.1
|
53.9
|
|
16
|
1.0
|
1.8
|
26.9
|
1051
|
1.15
|
3.5
|
0.00422
|
85.5
|
69.0
|
|
25
|
1.2
|
1.8
|
31.0
|
1528
|
0.727
|
3.5
|
0.00431
|
109.0
|
90.4
|
|
35
|
1.2
|
1.9
|
34.1
|
1986
|
0.524
|
3.5
|
0.00381
|
130.6
|
110.6
|
|
50
|
1.4
|
2.0
|
38.2
|
2711
|
0.387
|
3.5
|
0.00396
|
152.6
|
131.0
|
|
70
|
1.4
|
2.2
|
41.8
|
3573
|
0.268
|
3.5
|
0.00354
|
186.3
|
161.4
|
|
95
|
1.6
|
2.3
|
47.6
|
4750
|
0.193
|
3.5
|
0.00351
|
221.8
|
196.1
|
|
120
|
1.6
|
2.5
|
51.9
|
5836
|
0.153
|
3.5
|
0.00316
|
252.1
|
225.8
|
|
150
|
1.8
|
2.6
|
57.0
|
7236
|
0.124
|
3.5
|
0.00323
|
281.0
|
255.1
|
|
185
|
2.0
|
2.8
|
62.8
|
8848
|
0.0991
|
3.5
|
0.00324
|
315.7
|
290.5
|
|
240
|
2.2
|
3.0
|
70.0
|
11305
|
0.0754
|
3.5
|
0.00316
|
363.1
|
338.8
|
