电缆结构＆电气性能数据
ESI 09-6 Issue 5 Section 2 – 感应电压电缆
电缆结构
0.90mm 符合 BS6360 Class 1退火镀锡铜丝.
绝缘材料
这种电缆绝缘是符合BS7655的聚氯乙烯类型02, uniformly twisted together to form a pair with a
maximum lay length of 125mm, and colour coded for identification (See Table 1). Suitable for voltages up to and including
150 Volts (d.c.) and 110 Volts (a.c.)
电线结构
2 pair cables are laid up in quad formation.
5 – 100 pair cables are laid up in layer formation.
屏蔽材料
All cables, if required, can incorporate a screen comprising of an aluminium/PETP tape. The tape screen is in contact with a
0.80mm tinned copper drain wire.
外护套
| 类型 1 |
Unarmoured Multipair Light Current Control cables.
Extruded Polyvinyl Chloride sheath to BS7655. |
| 类型 2 |
Armoured Multipair Light Current Control cables.
Extruded Polyvinyl Chloride bedding to BS7655, Galvanised steel wire armour to BS1442 and an extruded
Polyvinyl Chloride sheath to BS7655. |
Alternative PVC materials producing lower levels of HCL are available on request.
Electrical Characteristics
| High Voltage Test |
|
| |
Collective screens |
2000 Volts for 1 minute between each 电缆结构 & earth |
| |
Cables without screen |
5000 Volts for 1 minute between all 电缆结构 & earth |
| Conductor Resistance |
59.34 ?/Km Loop @ 20°C (Max) |
| Insulation Resistance |
80 M?/Km @ 20°C (Min) |
Cable Dimensions
Type 1 cables (Unarmoured)
| Number of pairs |
2 |
5 |
10 |
15 |
20 |
25 |
30 |
40 |
| Nominal diameter of conductor mm |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
| Insulation radial thickness mm |
0.30 |
0.30 |
0.30 |
0.30 |
0.30 |
0.30 |
0.30 |
0.30 |
| Sheath radial thickness (Min) mm |
0.80 |
1.00 |
1.00 |
1.20 |
1.20 |
1.30 |
1.40 |
1.40 |
| Overall diameter (Nom) mm |
5.70 |
9.40 |
13.00 |
15.00 |
16.80 |
18.60 |
19.90 |
22.50 |
| Cable weight (Nom) Kg/Km |
50 |
150 |
250 |
300 |
400 |
500 |
600 |
750 |
| Number of pairs |
50 |
75 |
100 |
|
|
|
|
|
| Nominal diameter of conductor mm |
0.90 |
0.90 |
0.90 |
|
|
|
|
|
| Insulation radial thickness mm |
0.30 |
0.30 |
0.30 |
|
|
|
|
|
| Sheath radial thickness (Min) mm |
1.60 |
1.70 |
1.90 |
|
|
|
|
|
| Overall diameter (Nom) mm |
25.40 |
30.20 |
35.50 |
|
|
|
|
|
| Cable weight (Nom) Kg/Km |
950 |
1400 |
1850 |
|
|
|
|
|
Type 2 (Armoured)
| Number of pairs |
2 |
5 |
10 |
15 |
20 |
25 |
30 |
40 |
| Nominal diameter of conductor mm |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
| Insulation radial thickness mm |
0.30 |
0.30 |
0.30 |
0.30 |
0.30 |
0.30 |
0.30 |
0.30 |
| Bedding radial thickness mm |
0.80 |
1.00 |
1.10 |
1.20 |
1.20 |
1.30 |
1.40 |
1.40 |
| Diameter of armour wire mm |
0.90 |
0.90 |
1.25 |
1.25 |
1.25 |
1.60 |
1.60 |
1.60 |
| Sheath radial thickness (Nom) mm |
1.30 |
1.40 |
1.50 |
1.60 |
1.60 |
1.70 |
1.70 |
1.80 |
| Overall diameter (Nom) mm |
10.10 |
14.10 |
18.60 |
21.00 |
22.70 |
25.40 |
26.70 |
29.30 |
| Cable weight (Nom) Kg/Km |
250 |
350 |
650 |
800 |
1000 |
1250 |
1400 |
1700 |
| Number of pairs |
50 |
75 |
100 |
|
|
|
|
|
| Nominal diameter of conductor mm |
0.90 |
0.90 |
0.90 |
|
|
|
|
|
| Insulation radial thickness mm |
0.30 |
0.30 |
0.30 |
|
|
|
|
|
| Bedding radial thickness mm |
1.60 |
1.70 |
1.90 |
|
|
|
|
|
| Diameter of armour wire mm |
1.60 |
2.00 |
2.00 |
|
|
|
|
|
| Sheath radial thickness (Nom) mm |
1.90 |
2.00 |
2.00 |
|
|
|
|
|
| Overall diameter (Nom) mm |
32.60 |
38.40 |
44.10 |
|
|
|
|
|
| Cable weight (Nom) Kg/Km |
2000 |
2900 |
3650 |
|
|
|
|
|
Table 1 Identification of pairs
|