* The values apply to cables with either solid or stranded conductors
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Table 21 : Maximum resistance of conductor and armour for 600/1000V auxiliary cables with copper conductors
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|||||
|
Nominal |
|
|
Maximum resistance per km of cable at 20 |
’C |
|
|
||||||
|
area of |
|
|
|
|
|
|
|
|
|
|||
|
conductor |
Copper* |
|
|
Steel |
wire armour - |
Number of corest |
|
|
||||
|
|
conductor |
7 |
12 |
19 |
27 |
37 |
48 |
|||||
|
mm2 |
Q |
Q |
|
0 |
Q |
Q |
|
Q |
Q |
|||
|
1.5 |
12.1 |
7.5 |
|
4.0 |
3.5 |
2.3 |
|
2.0 |
1.8 |
|||
|
2.5 |
7.41 |
4.6 |
|
3.5 |
2.3 |
1.9 |
|
1.7 |
1.2 |
|||
|
4.0 |
4.61 |
3.9 |
|
2.2 |
1.9 |
1.3 |
|
1.1 |
0.96 |
|||
* The values given are for plain annealed copper conductors. For tinned conductors reference should be made to HD 383.
t For non-preferred sizes, the maximum resistance shall not be greater than that of the next lowest preferred number of cores.Table 22 : Gross cross sectional area of armour wires for single core 600/1000V cables
having aluminium wire armour
|
1 |
2 |
3 |
|
Nominal cross-sectional |
Cross-sectional area of round armour wires |
|
|
area of conductor |
Cables with stranded copper |
Cables with solid |
|
|
or aluminium conductors |
aluminium conductors |
|
mm2 |
mm2 |
mm2 |
|
50 |
39 |
35 |
|
70 |
44 |
40 |
|
95 |
50 |
45 |
|
120 |
72 |
66 |
|
150 |
80 |
72 |
|
185 |
88 |
78 |
|
240 |
98 |
88 |
|
300 |
108 |
96 |
|
400 |
153 |
- |
|
500 |
169 |
- |
|
630 |
185 |
- |
|
800 |
260 |
*• |
|
1000 |
289 |
|
|
Circular sectoral conductors |
||
|
380 |
|
138 |
|
480 |
|
150 |
|
600 |
- |
163 |
|
740 |
|
225 |
|
960 |
|
255 |
|
1200 |
|
279 |
Table 23 : Gross cross sectional area of armour wires for two core, three core and four core 600/1000V cables having wire armour
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|
|
Nominal |
Cross-sectional area of armour wires |
|||||||
|
cross- |
|
|
|
|
|
|
|
|
|
sectional |
Cables with stranded copper conductors and steel wire |
Cables with solid aluminium conductors |
||||||
|
area of |
|
armour |
|
and aluminium wire armour |
||||
|
conductor |
Two-core |
Three-core |
Four-core |
Four-core (reduced |
Two-core |
Three-core |
Four-core |
|
|
|
|
|
|
neutral) |
|
|
|
|
|
mm1 |
mm2 |
mm2 |
mm2 |
mm2 |
mm2 |
mm’ |
mm2 |
|
|
1.Б* |
15 |
16 |
17 |
- |
|
|
|
|
|
2.5* |
17 |
19 |
20 |
- |
* |
- |
- |
|
|
4* |
20 |
22 |
34 |
- |
- |
- |
- |
|
|
6* |
22 |
34 |
38 |
- |
— |
- |
— |
|
|
10* |
40 |
42 |
46 |
- |
- |
- |
— |
|
|
16* |
46 |
50 |
72 |
- |
42 |
46 |
66 |
|
|
26 |
60 |
66 |
76 |
76 |
54 |
62 |
70 |
|
|
36 |
66 |
74 |
84 |
82 |
58 |
68 |
78 |
|
|
60 |
74 |
84 |
122 |
94 |
66 |
78 |
113 |
|
|
70 |
84 |
119 |
138 |
135 |
74 |
113 |
128 |
|
|
95 |
122 |
138 |
160 |
157 |
109 |
128 |
147 |
|
|
120 |
131 |
160 |
220 |
215 |
- |
138 |
201 |
|
|
160 |
144 |
21 1 |
240 |
235 |
- |
191 |
220 |
|
|
185 |
201 |
230 |
265 |
260 |
- |
215 |
245 |
|
|
240 |
225 |
260 |
299 |
289 |
- |
240 |
274 |
|
|
300 |
250 |
289 |
333 |
323 |
- |
265 |
304 |
|
|
400 |
279 |
319 |
467 |
452 |
■ |
- |
- |
|
|
* Circular conductors |
||||||||
Table 24 : Gross cross sectional area of aluminium strip armour for single core, two core, three core and four core 600/1000V cables having solid aluminium conductors
|
1 |
2 |
3 |
4 |
5 |
|
Nominal |
Cross-sectional area of aluminium strip armour cables with solid |
|||
|
cross- |
|
aluminium conductors |
|
|
|
sectional area of conductor |
Single-core |
T wo-core |
Three-core |
Four-core |
|
mm2 |
mm2 |
mm2 |
mm2 |
mm2 |
|
16* |
- |
23 |
26 |
29 |
|
25 |
- |
22 |
27 |
30 |
|
35 |
““ |
24 |
30 |
34 |
|
50 |
19 |
29 |
60 |
67 |
|
70 |
22 |
56 |
67 |
78 |
|
95 |
26 |
63 |
110 |
123 |
|
120 |
29 |
- |
117 |
136 |
|
150 |
31 |
|
130 |
149 |
|
185 |
60 |
|
143 |
214 |
|
240 |
67 |
|
214 |
248 |
|
300 |
74 |
- |
237 |
271 |
|
Circular sectoral conductors |
||||
|
380 |
117 |
|
|
|
|
480 |
130 |
- |
- |
- |
|
600 |
143 |
|
|
““ |
|
740 |
156 |
• |
- |
-- |
|
960 |
226 |
- |
|
- |
|
1200 |
248 |
- |
- |
- |
|
* Circular conductors |
||||
Table 25 : Gross cross sectional area of armour for 600/1000V auxiliary cables with copper conductors
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
||
|
Nominal |
Gross cross-sectional area of steel wire armour |
|||||||
|
cross- |
|
|
|
|
|
|
||
|
sectional |
|
|
Number of cores |
|
|
|||
|
area of conductor |
7 |
12 |
19 |
27 |
37 |
48 |
||
|
mm2 |
mm2 |
mm2 |
mm2 |
mm2 |
mm2 |
mm2 |
||
|
1.5 |
20 |
39 |
45 |
70 |
78 |
90 |
||
|
2.5 |
34 |
45 |
70 |
84 |
94 |
138 |
||
|
4 |
40 |
72 |
84 |
128 |
144 |
163 |
||
|
NOTE: These values relate to the cables in Table 11 having the preferred number |
||||||||
|
of cores. |
|
|
|
|
|
|
||
