Зміна №1 (англ)

TABLE 20

Maximum resistance of conductor and armour for two-core, three core, four-core and five-core cables having wire armour (Type 1 and Type 2*)

Page 5-E-42

HD 604 SI :1994/A1:1997

Part 5 Section E

¹¹¹ The values given are for plain annealed copper conductors. For tinned conductors reference should be made to HD383

¹²¹ With 1 50mm² neutral

¹³¹ With 185mm² neutral

* The figures for Type 2 cables with copper conductors do not apply for Tl Z insulation (see Table 21)

Maximum resistance of armour for twin, three and four core cables
having copper conductors and steel wire armour
(Type 2 with Tl Z insulation)

Maximum resistance per km of cable at 20°C
Nominal area of conductor	Steel wire armour for cables with stranded copper conductors
	Twin core	Three core	Four core
	600/ 1000V	600/ 1000V	600/ 1000V
mm²	ohms	ohms	ohms
2.5	9.1	8.8	7.9
4	7.5	7.0	4.6
6	6.8	4.6	4.1
10	3.9	3.7	3.4
16	3.4	3.1	2.2

TABLE 22

Maximum resistance of conductor and armour for 600/1000 V auxiliary cables with copper conductors
having steel wire armour (Type 1 only)

1	2	3	4	5	6	7	8
Nominal		Maximum resistance per kilometre of cable at				20°C
cross-
sectional				Steel wire armour
area of conductor	Copper conductor •”	Number of cores ¹²¹
area of conductor	Copper conductor •”	7	12	19	27	37	48
		7	12	19	27	37	48
mm’	Q	Q	Q	Q	Q	Q	0
1.5	12.1	7.5	4.0	3.5	2.3	2.0	1.8
2.5	7.41	6.3	3.5	2.3	1.9	1.7	1.2
4	4.61	4.0	2.3	2.0	1.7	T.2	1.0

The values given are for plain annealed copper conductors. For tinned conductors reference should be made to HD 383.

For non-preferred sizes, the maximum resistance shall not be greater than that of the next lowest preferred number of cores.

Gross cross-sectional areas of armour wires for single core 600/1000 V cables having aluminium wire
armour (Type 1 and Type 2)

1	2	3
	Gross cross-sectional area of armour wires
Nominal cross-sectional	Cables with stranded	Cables with solid
area of conductor	copper or aluminium	aluminium conductors
	conductors	600/1000V
	600/1000V
mm’	mm²	mm²
50	26	24
70	42	38
95	47	42
120	52	46
150	76	68
185	84	76
240	94	84
300	104	92
400	147
500	163	-
630	182	-
800	260	-
1000	284	-
CIRCULAR SECTORAL CONDUCTORS
380		131
480		147
600	-	160
740	-	225
960		250
1200	-	279

Gross cross-sectional areas of armour wires for two, three, four and five-core 600/1000 V cables having
wire armour (Type 1 and Type 2)

1	2	3	4	5	6	7		8	9
Nominal	Gross cross-sectional area of round armour wires
cross-
sectional	Cables with stranded copper conductors*						Cables with solid aluminium
area of		and steel wire armour					conductors and aluminium wire
conductor								armour
	Two-	Three-	Four-	Four-	Five-	Two-		Three-	Four-
	core	core	core	core	core	core		core	core
				(reduced neutral)
mm²	mm²	mm²	mm²	mm²	mm²	mm²		mm²	mm²
1.5^,1)	15	16	17	-	19	-		-	-
2.5’¹¹	17	19	20	-	22
	19	20	22		25
6^t1!	22	23	36		40
IO'¹’	26	39	42		46	•
16ⁿ’	42	45	50	-	72	39		41	46
25	42	62	70	70	88	38		58	66
35	60	68	78	76	100	54		64	72
50	68	78	90	86	144	60		72	82
70	80	90	131	128	166	70		84	122
95	113	128	147	144		100		119	135
120	125	141	206	163	-	-		131	191
150	138	201	230	220		-		181	211
185	191	220	255	250				206	235
240	215	250	289	279				230	265
300	235	269	319	304	-	-		250	289
400	265	304	452	343	-	-

Circular conductors

These figures do not apply to those cables having Tl Z insulation (ref. Tables 6B, 8B and 10B)TABLE 25

Gross cross-sectional areas of armour wires for 600/1000V auxiliary cables with copper conductors having
steel wire armour (Type 1 only)

1	2	3	4	5	6	7
Nominal cross-	Gross cross-sectional areas of armour wires
sectional area of conductor	Number of cores
	7	12	19	27	37	48
mm²	mm²	mm²	mm²	mm²	mm²	mm²
1.5	20	39	45	70	78	90
2.5	24	45	70	84	94	138
4	39	68	80	96	138	157

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