batt cables: current rating 4d1a 4d1b
DESCRIPTION
Single core 70 deg C thermoplastic insulated cables, non-armoured with or without sheathTRANSCRIPT
-
RTE
CH
NIC
AL
INF
OR
MA
TIO
N
264
SOUTH EAST
Erith (Head Office)
Tel: 01322 441165
Fax: 01322 440492
SOUTH WEST
Bristol
Tel: 0117 966 6333
Fax: 0117 953 3602
MIDLANDS
Birmingham
Tel: 0121 321 1745
Fax: 0121 355 5320
NORTH
Leeds
Tel: 0113 2533565
Fax: 0113 253 6373
EASTERN
Peterborough
Tel : 01733 558485
Fax: 01733 56 2 0 1 5
NORTH WEST
Manchester
Tel: 01204 793111
Fax: 01204 797977
WALES
Cardiff
Tel: 02920 450044
Fax: 02920 464724
NORTH EAST
Teesside
Tel: 01642 678633
Fax: 01642 674487
Current Ratings
TABLE 4D1A Single core 700C thermoplastic insulated cables, non-
armoured with or without sheath ( Copper Conductors)
Ambient temperature : 30C
Conductor operating temperature: 70C CURRENT-CARRYING CAPACITY (amperes):
Conductor
cross-
sectional
area
Reference Method A
(enclosed in conduit
in thermally
insulating
wall etc.)
Reference Method B
(enclosed in
conduit on a wall or
in trunking etc.)
Reference Method C
(clipped direct)Reference Method F (in free air or on a perforated cable
tray horizontal or vertical)
2 cables
single
phase
a.c or d.c.
2
3 or 4
cables
three
phase a.c.
31
2 cables
single
phase
a.c or d.c
4
3 or 4
cables
three
phase a.c.
5
2 cables
single
phase
a.c. or d.c.
flat and
touching
6
3 or 4
cables
three
phase a.c.
flat and
touching
or trefoil
7
2 cables
single
phase
a.c. or d.c.
flat
8
3
cables
three
phase a.c.
flat
9
3 cables
three
phase
a.c.trefoil
10
2 cables, single-phase
a.c. or d.c.or 3 cables
three phase a.c. flat
Vertical
12
Horizontal
11
Touching Spaced by one diameter
(mm)11.5
2.546
1016
2535507095
120150185240300
400500630800
1000
(A)1114.5
2026344661
8099
119151182
210240273321367
-----
(A)--
-----
114143174225275
321372427507587
689789905
10201149
(A)--
-----
131162196251304
352406463546629
754868
100510861216
(A)1418
2533435979
104129167214261
303349400472545
634723826943
1058
(A)13.517.5
2432415776
101125151192232
269300341400458
546626720
-
-
(A)10.513.5
1824314256
7389
108136164
188216245286328
-----
(A)--
-----
110137167216264
308356409485561
656749855971
1079
(A)--
-----
146181219281341
396456521615709
852982
113812651420
(A)--
-----
130162197254311
362419480569659
795920
107011881337
(A)15.520
2737476587
114141182234284
330381436515594
694792904
10301154
(A)1215.5
2128365068
89110134171207
239262296346394
467533611
--
Conductor
cross-
sectional
area
1
2
cables
d.c
2
Reference Methods
A & B (enclosed in
conduit or trunking)
3
Reference Methods C & F
(clipped direct, on tray or in free air)cables touching, trefoil
7
cables touching, flat
8
cables spaced *flat
9
Reference Methods
A & B (enclosed in
conduit or trunking)
6
Reference Method C & F
(clipped direct, on tray or in free air
cables touching
4
cables spaced*
5
2 cables, single phase a.c. 3 or 4 cables, three-phase a.c.
(mm)
11.5
2.546
1016
(mV/A/m)
4429
18117.34.42.8
(mV/A/m)
4429
18117.34.42.8
r x z
1.751.250.930.630.46
0.360.290.23
0.1800.145
0.1050.0860.0680.0530.042
2535507095
120150185240300
400500630800
1000
1.801.300.950.650.49
0.390.310.25
0.1950.160
0.1300.1100.094
1.801.301.000.720.56
0.470.410.370.330.31
0.290.280.27
0.330.310.300.290.28
0.270.270.270.260.26
0.260.260.25
--
(mV/A/m)
4429
18117.34.42.8
r x z
1.751.250.930.630.47
0.370.300.24
0.1850.150
0.1200.0980.0810.0680.059
1.751.250.950.660.50
0.410.340.290.250.22
0.200.1850.1750.1650.160
0.200.1950.1900.1850.180
0.1750.1750.1700.1650.165
0.1600.1550.1550.1500.150
(mV/A/m)
4429
18117.34.42.8
r x z
1.751.250.930.630.47
0.370.290.24
0.1850.150
0.1150.0930.0760.0610.050
1.801.300.970.690.54
0.450.390.350.310.29
0.270.260.250.250.24
0.290.280.280.270.27
0.260.260.260.250.25
0.250.240.240.240.24
(mV/A/m)
3825
159.56.43.82.4
r x z
1.551.100.850.610.48
0.410.360.320.290.27
0.250.250.24
--
0.290.270.260.250.24
0.230.230.230.230.23
0.220.220.22
--
1.501.100.810.560.42
0.330.270.220.170.14
0.120.100.08
--
(mV/A/m)
3825
159.56.43.82.4
r x z
1.501.100.820.570.43
0.360.300.260.22
0.190
0.1750.1600.1500.1450.140
0.1750.1700.1650.1600.155
0.1500.1500.1450.1450.140
0.1400.1350.1350.1300.130
1.501.100.800.550.41
0.320.260.21
0.1600.130
0.1050.0860.0720.0600.052
(mV/A/m)
3825
159.56.43.82.4
r x z
(mV/A/m)
3825
159.56.43.82.4
r x z
1.501.100.800.550.41
0.320.260.21
0.1600.130
0.1050.0860.0720.0600.052
0.250.240.240.240.23
0.230.230.220.220.22
0.210.210.210.210.20
1.551.100.840.600.47
0.400.340.310.270.25
0.240.230.220.220.21
1.501.100.800.550.40
0.320.260.21
0.1600.130
0.1000.0810.0660.0530.044
0.320.320.320.310.31
0.300.300.300.290.29
0.290.290.280.280.28
1.551.150.860.630.51
0.440.400.360.340.32
0.310.300.290.290.28
VOLTAGE DROP (per ampere per metre) TABLE 4D1B Conductor operating temperature: 70C
NOTE: * Spacings larger than one
diameter will result in larger volt drop.
All tables are reproduced by kind permission of The Institution of Engineering & Technology from IEE Regs, 17th Edition However, it should be noted that in
order to apply these tables correctly, reference is required to appendix 4 of the 17th edition of the wiring regualtions which may be obtained from: Institution
of Engineering & Technolgy, Michael Faraday House,Six Hills Way, Stevenage, Hertfordshire, ENGLAND, SG1 2AY.