PVC INSULATED CABLES
CONTENT INTRODUCTION_________________________________________________2 PVC INSULATED CABLES 450/750 V, BS 6004 OR MS 136_____________________________________3 PVC INSULATED, PVC SHEATHED UNARMOURED CABLE 300/500 V, BS 6346 OR MS 274_____________________________________4 PVC INSULATED, PVC SHEATHED ARMOURED CABLE 600/1000 V, BS 6346 OR MS 274____________________________________7 PVC INSULATED, PVC SHEATHED ARMOURED AUXILIARY CABLE 600/100 V, BS 6346 OR MS 274____________________________________10 PVC INSULATED, PVC SHEATHED UNARMOURED WITH REDUCED NEUTRAL CABLE 600/1000 V, BS 6346 OR MS 274___________________________________12 PVC INSULATED, PVC SHEATHED ARMOURED WITH REDUCED NEUTRAL CABLE 600/1000 V, BS 6346 OR MS 274___________________________________13 CURRENT RATING RATING FACTOR_______________________________________________14 CURRENT RATING______________________________________________16 APPENDIX: TECHNICAL DATA STRANDED ANNEALED COPPER AND ALUMINIUM CONDUCTORS FORMULA FOR ELECTRICAL CALCULATION_ ______________________21 WIRE GAUGES_________________________________________________23 COMMON CONVERSION FACTOR_________________________________24 PUBLICATIONS REFERRED TO___________________________________24
1
INTRODUCTION
Leader Cable Industry Berhad, incorporated in 1976, has grown steadily to become the country’s single largest cable manufacturer today since its 1990 merger with Universal Cable (M) Berhad under the flagship of its parents, Leader Universal Holdings Berhad (LEADER). Through its far sighted planning and unceasing product and service innovation, LCIB has successfully cultivated a manufacturing profile of an extensive range of cable and wire products. From households, XLPE cables, telecommunication cables for both domestic and export markets. LCIB has achieved a distinguished reputation as a leading supplier of power and telecommunication cable to major corporations, both local and foreign. Today, as a subsidiary of the LEADER group of companies, LCIB has one of the most advanced facilities for manufacturing PVC insulated cables in the Asia-Pacific region. The PVC insulated cables manufactured today by LCIB are internationally renowned for its world class quality standards. PVC has been in use as an insulating and outersheathing material for a long time. Since PVC has some degree of flame retardance, and resistance to oils and chemicals, it has found many suitable applications including low power and control uses. Generally, there are two types of PVC, general purpose and heat resistant PVCs with maximum conductor temperatures of 70°C and 90°C respectively. PVC insulated cables are used in power distribution, building wire, appliance wiring, flexible cord and machine tool wiring. Communication applications use polyvinyl chloride coverings on a limited basis. Insulation and jackets made from polyvinyl chloride have a number of desirable properties that make them the insulation and jacketing material of choice for many common applications. These properties include flexibility, resistance to temperature, resistance to adverse environmental situations and low cost . This catalogue serves as a guide to LCIB’s manufacturing processes and standards in the production of PVC insulated cables, both armoured and unarmoured, including one with reduced neutral conductor and a maximum phase-to-phase voltage of 1000 volt. The conductor used is mainly plain annealed copper. Other conductors, such as tinned copper and aluminium are also available and may be supplied upon request.
2
CU / PVC INSULATED CABLE Conductor Plain annealed copper Insulation PVC Compound Colour of cores Red, Yellow, Blue, Black, White and Green or Green/Yellow Conductor Area
Shape
mm²
Thickness of Insulation
Approx. overall diameter
Approx net weight
mm
mm
Kg / Km
MS 136, BS 6004 & IEC 60227, 450/750 V 1.5 1.5 2.5
s.c. r.m. s.c.
0.7 0.7 0.8
2.9 3.0 3.5
21 23 33
2.5 4 6
r.m. r.m. r.m.
0.8 0.8 0.8
3.6 4.2 4.7
35 51 72
10 16 25
r.m. r.m. c.c.
1.0 1.0 1.2
6.1 6.8 8.4
120 175 280
35 50 70
c.c. c.c. c.c.
1.2 1.4 1.4
9.6 11.2 12.9
370 500 710
95 120 150
c.c. c.c. c.c.
1.6 1.6 1.8
15.0 16.6 18.4
980 1220 1490
185 240 300
c.c. c.c. c.c.
2.0 2.2 2.4
20.6 23.4 26.1
1870 2450 3070
400 500 630
c.c. c.c. c.c.
2.6 2.8 2.8
29.3 32.7 36.4
3920 4940 6280
Note : s.c. - solid circular, r.m. - circular stranded, c.c. - compacted circular stranded
3
PVC INSULATED, PVC SHEATHED UNARMOURED CABLE Conductors Plain annealed copper or aluminium Insulation General purpose PVC compound Colour of cores Single core - red and black 2 cores - red and black 3 cores - red, yellow and blue 4 cores - red, yellow, blue and black Formation (i) Single core (ii) 2, 3, or 4 cores - stranded together and the interstices may be filled with the sheathing compound or textile. A nonhygroscopic binder tape may be applied over the laid-up cores. Sheath Black general purpose PVC compound PVC INSULATED, PVC SHEATHED UNARMOURED CABLE (1-CORE) Conductor Nominal sectio nal area
Shape
Thickness of Insulation
Thickness of sheath
Approx. overall diameter
Approx. net weight
mm2
No./mm
mm
mm
mm
kg/km
4.7 5.3 6.3 6.8 8.2 9.4 11.3 12.6
37 51 76 99 150 220 340 440
14.9 16.9 19.2 20.8 23 25.5 28.8 31.8 35.4 39.1 43.3 47.8 53.1
610 830 1130 1380 1690 2100 2740 3410 4310 5380 6820 8590 10760
BS 6004, 300/500V 1.5 2.5 4 6 10 16 25 35
0.7 0.8 0.8 0.8 1.0 1.0 1.2 1.2
r.m. r.m. r.m. r.m. r.m. r.m. c.c. c.c.
0.8 0.8 0.9 0.9 0.9 1.0 1.1 1.1
BS 6346 & MS 274, 600/1000V 50 70 95 120 150 185 240 300 400 500 630 800 1000
c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. c.c. r.m.
Note : r.m. - circular stranded, c.c. - compacted circular stranded
4
1.4 1.4 1.6 1.6 1.8 2.0 2.2 2.4 2.6 2.8 2.8 2.8 3.0
1.4 1.4 1.5 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.5
PVC INSULATED, PVC SHEATHED UNARMOURED CABLE (2-CORE) Conductor Nominal sectional area
Shape
Thickness of Insulation
Thickness of sheath
Approx. overall diameter
Approx. net weight
mm2
No./mm
mm
mm
mm
kg/km
8.5 8.9 9.7 10.1 11.2 12.3
100 110 140 150 200 260
16.2 18.3 21.0 19.9 22.7 25.5 29.2 31.8 35.0 39.1 43.9 48.6 53.9
450 620 880 920 1220 1670 2270 2800 3410 4270 5560 6930 8770
BS 6004, 300/500V s.c. r.m. s.c. r.m. r.m. r.m.
1.5 1.5 2.5 2.5 4 6
1.2 1.2 1.2 1.2 1.2 1.2
0.7 0.7 0.8 0.8 0.8 0.8
BS 6346 & MS 274, 600/ 1000V r.m. r.m. c.c. s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m.
10 16 25 35 50 70 95 120 150 185 240 300 400
1.8 1.8 1.8 1.8 1.8 1.9 2.0 2.1 2.2 2.4 2.5 2.7 2.9
1.0 1.0 1.2 1.2 1.4 1.4 1.6 1.6 1.8 2.0 2.2 2.4 2.6
PVC INSULATED, PVC SHEATHED UNARMOURED CABLE (3-CORE) Conductor Nominal sectional area mm2
Shape
Thickness of Insulation
Thickness of sheath
Approx. overall diameter
Approx. net weight
No./mm
mm
mm
mm
kg/km
1.2 1.2 1.2 1.2 1.2 1.4
8.9 9.4 10.2 10.7 11.9 13.5
120 130 170 180 240 320
17.2 19.4 22.3 22.8 26.1 29.5 34.1 37.1 40.9 45.7 51.4 57 63.6
530 750 1090 1360 1810 2480 3390 4180 5110 6410 8360 10420 13210
BS 6004, 300/500V 1.5 1.5 2.5 2.5 4 6
s.c. r.m. s.c. r.m. r.m. r.m.
0.7 0.7 0.8 0.8 0.8 0.8
BS 6346 & MS 274, 600/ 1000V 10 16 25 35 50 70 95 120 150 185 240 300 400
r.m. r.m. c.c. s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m.
1.0 1.0 1.2 1.2 1.4 1.4 1.6 1.6 1.8 2.0 2.2 2.4 2.6
1.8 1.8 1.8 1.8 1.8 1.9 2.1 2.2 2.3 2.5 2.6 2.8 3.1
Note : s.c. - solid circular, r.m. - circular stranded, c.c. - compacted circular stranded, s.m. - shaped stranded
5
PVC INSULATED, PVC SHEATHED UNARMOURED CABLE (4-CORE) Conductor Nominal sectional area
Shape
Thickness of Insulation
Thickness of sheath
Approx. overall diameter
Approx. net weight
mm2
No./mm
mm
mm
mm
kg/km
9.7 10.2 11.1 11.7 13.4 14.7
150 160 210 220 310 410
18.7 21.3 24.5 25.6 29.6 33.5 38.7 42.1 46.6 51.9 58.6 65.3 72.6
700 960 1400 1820 2450 3350 4580 5630 6920 8640 11290 14110 17860
BS 6004, 300/500V 1.5 1.5 2.5 2.5 4 6
s.c. r.m. s.c. r.m. r.m. r.m.
0.7 0.7 0.8 0.8 0.8 0.8
1.2 1.2 1.2 1.2 1.4 1.4
BS 6346 & MS 274, 600/ 1000V 10 16 25 35 50 70 95 120 150 185 240 300 400
r.m. r.m. c.c s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m. s.m.
1.0 1.0 1.2 1.2 1.4 1.4 1.6 1.6 1.8 2.0 2.2 2.4 2.6
1.8 1.8 1.8 1.8 1.9 2.0 2.2 2.3 2.5 2.6 2.8 3.1 3.3
Note : s.c. - solid circular, r.m. - circular stranded, c.c. - compacted circular stranded, s.m. - shaped stranded
6
PVC INSULATED, PVC SHEATHED ARMOURED CABLE Conductor Plain annealed copper or aluminium Insulation General purpose PVC compound Colour of cores Single core - red and black 2 cores - red and black 3 cores - red, yellow and blue 4 cores - red, yellow, blue and black Formation (i) Single core (ii) 2,3, or 4 cores - stranded together and the interstices may be filled with the sheathing compound or textile. A nonhygroscopic binder tape may be applied over the laid-up cores. Bedding Black general purpose PVC compound Armour Single core - Aluminium wire 2,3, or 4 cores - Galvanised steel wire Sheath Black general purpose PVC compound PVC INSULATED, PVC SHEATHED UNARMOURED CABLE (1-CORE) Conductor Nominal sectional area
Shape
Thickness of Insulation
mm2
No./mm
mm
Thickness of bedding
Diameter of armour wire
Thickness of sheath
Approx. overall diameter
Approx. net weight
mm
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000V 50 70 95 120
c.c. c.c. c.c. c.c.
1.4 1.4 1.6 1.6
0.8 0.8 0.8 1.0
1.25 1.25 1.25 1.6
1.5 1.6 1.6 1.7
19.4 21.4 23.7 26.6
840 1090 1410 1790
150 185 240 300
c.c. c.c. c.c. c.c.
1.8 2.0 2.2 2.4
1.0 1.0 1.0 1.0
1.6 1.6 1.6 1.6
1.7 1.8 1.9 1.9
28.6 31.1 34.4 37.2
2120 2580 3270 3970
400 500 630 800 1000
c.c. c.c. c.c. c.c. r.m.
2.6 2.8 2.8 2.8 3.0
1.2 1.2 1.2 1.4 1.4
2.0 2.0 2.0 2.5 2.5
2.1 2.1 2.2 2.4 2.5
42.2 45.7 49.9 55.9 61.1
5110 5230 7760 9890 12180
Note : r.m. - circular stranded, c.c. - compacted circular stranded
7
PVC INSULATED, PVC SHEATHED ARMOURED CABLE (2-CORE) Conductor Nominal sectional area mm2
Shape
Thickness of Insulation
Thickness of bedding
Diameter of armour wire
Thickness of sheath
Approx. overall diameter
Approx. net weight
No./mm
mm
mm
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000V 1.5 1.5 2.5 2.5
s.c. r.m. s.c. r.m.
0.6 0.6 0.7 0.7
0.8 0.8 0.8 0.8
0.9 0.9 0.9 0.9
1.3 1.4 1.4 1.4
11.9 12.5 13.3 13.7
290 310 360 380
4 6 10 16
r.m. r.m. r.m. r.m.
0.8 0.8 1.0 1.0
0.8 0.8 0.8 0.8
0.9 1.9 1.25 1.25
1.4 1.5 1.6 1.6
15.2 16.5 20.1 22.2
460 550 870 1090
25 35 50 70
c.c. s.m. s.m. s.m.
1.2 1.2 1.4 1.4
1.0 1.0 1.0 1.0
1.6 1.6 1.6 1.6
1.7 1.8 1.9 1.9
26.2 25.3 28.3 30.9
1610 1690 2100 2640
95 120 150 185
s.m. s.m. s.m. s.m.
1.6 1.6 1.8 2.0
1.2 1.2 1.2 1.4
2.0 2.0 2.0 2.5
2.1 2.2 2.3 2.4
36.0 38.6 41.8 47.1
3680 4310 5060 6570
240 300 400
s.m. s.m. s.m.
2.2 2.4 2.6
1.4 1.6 1.6
2.5 2.5 2.5
2.5 2.7 2.9
51.9 57.0 62.3
8110 9790 11940
PVC IINSULATED, PVC SHEATHED ARMOURED CABLE (3-CORE) Conductor Nominal sectional area mm2
Shape
Thickness of Insulation
Thickness of bedding
Diameter of armour wire
Thickness of sheath
Approx. overall diameter
Approx. net weight
No./mm
mm
mm
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000V 1.5 1.5 2.5 2.5
s.c. r.m. s.c. r.m.
0.6 0.6 0.7 0.7
0.8 0.8 0.8 0.8
0.9 0.9 0.9 0.9
1.4 1.4 1.4 1.4
12.3 12.9 13.8 14.3
320 340 390 410
4 6 10 16
r.m. r.m. r.m. r.m.
0.8 0.8 1.0 1.0
0.8 0.8 0.8 0.8
0.9 1.25 1.25 1.25
1.4 1.5 1.6 1.6
15.9 18.0 21.1 23.3
530 750 1020 1300
25 35 50 70
c.c. s.m. s.m. s.m.
1.2 1.2 1.4 1.4
1.0 1.0 1.0 1.2
1.6 1.6 1.6 2.0
1.7 1.8 1.9 2.0
27.5 28.2 31.7 36.3
1930 2230 2820 3900
95 120 150 185
s.m. s.m. s.m. s.m.
1.6 1.6 1.8 2.0
1.2 1.2 1.4 1.4
2.0 2.0 2.5 2.5
2.1 2.2 2.4 2.5
40.7 43.7 49.1 53.7
4990 5910 7530 9060
240 300 400
s.m. s.m. s.m.
2.2 2.4 2.6
1.6 1.6 1.6
2.5 2.5 2.5
2.6 2.8 3.0
59.8 65.4 71.8
11410 13780 16860
Note : s.c. - solid circular, r.m. - circular stranded, c.c. - compacted circular stranded, s.m. - shaped stranded
8
PVC INSULATED , PVC SHEATHED ARMOURED CABLE (4-CORE) Conductor Nominal sectional area mm2
Shape
Thickness of Insulation
Thickness of bedding
Diameter of armour wire
Thickness of sheath
Approx. overall diameter
Approx. net weight
No./mm
mm
mm
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000V 1.5 1.5 2.5 2.5
s.c. r.m. s.c. r.m.
0.6 0.6 0.7 0.7
0.8 0.8 0.8 0.8
0.9 0.9 0.9 0.9
1.4 1.4 1.4 1.4
13.0 13.7 14.6 15.2
360 380 450 470
4 6 10 16
r.m. r.m. r.m. r.m.
0.8 0.8 1.0 1.0
0.8 0.8 0.8 1.0
1.25 1.25 1.25 1.6
1.5 1.5 1.6 1.7
17.9 19.2 22.6 26.5
730 870 1200 1770
25 35 50 70
c.c. s.m. s.m. s.m.
1.2 1.2 1.4 1.4
1.0 1.0 1.2 1.2
1.6 1.6 2.0 2.0
1.8 1.9 2.0 2.1
29.9 31.2 36.4 40.3
2340 2810 3880 4960
95 120 150 185
s.m. s.m. s.m. s.m.
1.6 1.6 1.8 2.0
1.2 1.4 1.4 1.6
2.0 2.5 2.5 2.5
2.2 2.4 2.5 2.6
45.3 50.3 54.6 60.3
6400 8110 9630 11700
240 300 400
s.m. s.m. s.m.
2.2 2.4 2.6
1.6 1.6 1.8
2.5 2.5 3.15
2.8 3.0 3.3
67.0 73.5 82.7
14750 17860 23110
Note : s.c. - solid circular, r.m. - circular stranded, c.c. - compacted circular stranded, s.m. - shaped stranded
9
PVC INSULATED, PVC SHEATHED ARMOURED CABLE Conductor Plain annealed copper Insulation General purpose PVC compound Colour of cores White with black numbering Formation Stranded together and the interstices may be filled with the sheathing compound. A non-hygroscopic binder tape may be applied over the laid-up cores Bedding Black general purpose PVC compound Armour Galvanised steel wire Sheath Black general purpose PVC compound PVC INSULATED, PVC SHEATHED ARMOURED AUXILIARY CABLE (1.5 mm2) Number of core
Nominal sectional area
Construction, Number/ Wire diameter
Thickness of Insulation
Thickness of bedding
Diameter of armour wire
Thickness of sheath
Approx. overall diameter
Approx. net weight
mm2
No./mm
mm
mm
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000 V
10
5 7 10 12
1.5 1.5 1.5 1.5
7/0.53 7/0.53 7/0.53 7/0.53
0.6 0.6 0.6 0.6
0.8 0.8 0.8 0.8
0.9 0.9 1.25 1.25
1.4 1.4 1.5 1.5
14.5 15.4 19.2 19.6
430 500 780 830
19 27 37 48
1.5 1.5 1.5 1.5
7/0.53 7/0.53 7/0.53 7/0.53
0.6 0.6 0.6 0.6
0.8 1.0 1.0 1.0
1.25 1.6 1.6 1.6
1.6 1.7 1.8 1.9
22.3 26.9 29.5 33.1
1090 1600 1940 2360
PVC INSULATED, PVC SHEATHED ARMOURED AUXILIARY CABLE (2.5mm2) Number of core
Nominal sectional area
Construction, Number/ Wire diameter
Thickness of Insulation
Thickness of bedding
Diameter of armour wire
Thickness of sheath
Approx. overall diameter
Approx. net weight
mm2
No./mm
mm
mm
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000 V 5 7 10 12
2.5 2.5 2.5 2.5
7/0.67 7/0.67 7/0.67 7/0.67
0.7 0.7 0.7 0.7
0.8 0.8 0.8 0.8
0.9 1.25 1.25 1.25
1.5 1.5 1.6 1.6
16.4 18.1 21.8 22.4
550 750 1000 1080
19 27 37 48
2.5 2.5 2.5 2.5
7/0.67 7/0.67 7/0.67 7/0.67
0.7 0.7 0.7 0.7
1 1 1 1.2
1.6 1.6 1.6 2.0
1.7 1.8 1.9 2.1
26.7 30.9 34.1 39.8
1640 2110 2600 3520
PVC INSULATED, PVC SHEATHED ARMOURED AUXILIARY CABLE (4 mm2) Number of core
Nominal sectional area
Construction, Number/ Wire diameter
Thickness of Insulation
Thickness of bedding
Diameter of armour wire
Thickness of sheath
Approx. overall diameter
Approx. net weight
mm2
No./mm
mm
mm
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000 V 5 7 10 12
4 4 4 4
7/0.85 7/0.85 7/0.85 7/0.85
0.8 0.8 0.8 0.8
0.8 0.8 1.0 1.0
1.25 1.25 1.6 1.6
1.5 1.6 1.7 1.7
19.1 20.6 26.1 26.8
820 970 1500 1630
19 27 37 48
4 4 4 4
7/0.85 7/0.85 7/0.85 7/0.85
0.8 0.8 0.8 0.8
1.0 1.2 1.2 1.2
1.6 2.0 2.0 2.0
1.8 2.0 2.1 2.2
30.6 37.2 41.0 46.1
2170 3170 3910 4790
11
PVC INSULATED, PVC SHEATHED UNARMOURED WITH REDUCED NEUTRAL CABLE (3C + E) Conductor Plain annealed copper Insulation General purpose PVC compound Colour of cores Red, yellow, blue and black (neutral) Formation Stranded together and the interstices may be filled with the sheathing compound or textile. A non-hygroscopic binder tape may be applied over the laid-up cores Sheath Black general purpose PVC compound PVC INSULATED, PVC SHEATHED UNARMOURED WITH REDUCED NEUTRAL CABLE Phase Conductor Nominal sectional area mm2
Neutral Conductor
Shape
Thickness of Insulation
Nominal sectional area
No./mm
mm
mm2
Shape
Thickness of Insulation
Thickness of sheath
Approx. overall diameter
Approx. net weight
No./mm
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000 V 25 35 50 70
c.c. s.m. s.m. s.m.
1.2 1.2 1.4 1.4
16 16 25 35
r.m. r.m. c.c. c.c.
1.0 1.0 1.2 1.2
1.8 1.8 1.9 2.0
24.5 25.6 29.6 33.5
1,290 1,650 2,250 3,060
95 120 150 185
s.m. s.m. s.m. s.m.
1.6 1.6 1.8 2.0
50 70 70 95
c.c. c.c. c.c. c.c.
1.4 1.4 1.4 1.6
2.1 2.2 2.4 2.5
38.5 41.9 46.4 51.7
4,150 5,160 6,230 7,850
240 300 300 400
s.m. s.m. s.m. s.m.
2.2 2.4 2.4 2.6
120 150 185 185
c.c. c.c. c.c. c.c.
1.6 1.8 2.0 2.0
2.7 2.9 2.9 3.2
58.4 64.8 64.8 72.4
10,190 12,670 12,940 16,050
Note : r.m. - circular stranded, c.c. - compacted circular stranded, s.m. - shaped stranded
12
PVC INSULATED, PVC SHEATHED ARMOURED WITH REDUCED NEUTRAL CABLE (3C + E) Conductor Plain annealed copper Insulation General purpose PVC compound Colour of cores Red, yellow, blue and black (neutral) Formation Stranded together and the interstices may be filled with the sheathing compound or textile. A non-hygroscopic binder tape may be applied over the laid-up cores. Bedding Black general purpose PVC compound Armour Galvanised steel wire Sheath Black general purpose PVC compound PVC INSULATED, PVC SHEATHED UNARMOURED WITH REDUCED NEUTRAL CABLE Phase Conductor Nominal sectional area
Shape
mm2
No./mm
Neutral Conductor
Thickness Nominal of sectional Insulation area mm
mm2
Shape
Thickness of Insulation
No./mm
mm
Thickness Diameter of Thickness of armour bedding of sheath wire mm
Approx. overall diameter
Approx. net weight
mm
mm
mm
kg/km
BS 6346 & MS 274, 600/ 1000 V 25 35 50 70
c.c. s.m. s.m. s.m.
1.2 1.2 1.4 1.4
16 16 25 35
r.m. r.m. c.c. c.c.
1.0 1.0 1.2 1.2
1.0 1.0 1.0 1.2
1.6 1.6 1.6 2.0
1.8 1.8 1.9 2.0
29.9 31.0 35.0 40.1
2,220 2,630 3,370 4,560
95 120 150 185
s.m. s.m. s.m. s.m.
1.6 1.6 1.8 2.0
50 70 70 95
c.c. c.c. c.c. c.c.
1.4 1.4 1.4 1.6
1.2 1.4 1.4 1.4
2.0 2.5 2.5 2.5
2.2 2.3 2.4 2.5
45.3 50.1 54.4 59.7
5,980 7,630 7,930 10,840
240 300 300 400
s.m. s.m. s.m. s.m.
2.2 2.4 2.4 2.6
120 150 185 185
c.c. c.c. c.c. c.c.
1.6 1.8 2.0 2.0
1.6 1.6 1.6 1.8
2.5 2.5 2.5 3.15
2.7 2.9 2.9 3.1
66.8 73.2 73.2 82.3
16,640 16,440 16,710 21,260
Note : r.m. - circular stranded, c.c. - compacted circular stranded, s.m. - shaped stranded
13
RATING FACTORS FOR GROUPS OF MORE THAN ONE CIRCUIT OF SINGLE - CORE CABLES, OR MORE THAN ONE MULTICORE CABLES Rating factor Methof of installation 2
3
4
5
6
7
8
9
10
12
14
16
18
20
0.80
0.70
0.65
0.60
0.57
0.54
0.52
0.50
0.48
0.45
0.43
0.41
0.39
0.38
Touching
0.85
0.79
0.75
0.73
0.72
0.72
0.71
0.70
-
-
-
-
-
-
Spaced*
0.94
0.90
0.90
0.90
0.90
0.90
0.90
0.90
0.90
0.90
0.90
0.90
0.90
-
Touching
0.86
0.81
0.77
0.75
0.74
0.73
0.73
0.72
0.71
0.70
-
-
-
-
Spaced*
0.91
0.89
0.88
0.87
0.87
-
-
-
-
-
-
-
-
-
Horizontal
0.90
0.85
-
-
-
-
-
-
-
-
-
-
-
-
Vertical
0.85
-
-
-
-
-
-
-
-
-
-
-
-
-
0.86
0.82
0.80
0.79
0.78
0.78
0.78
0.77
-
-
-
-
-
-
Enclosed, or bunched and clipped direct to a non-metallic surface Single layer clipped to a non-metallic surface Single layer multicore on a perforated metal cable tray, vertical or horizontal Single layer singlecore on a perforated metal cable tray, touching
Number of circuits or multicore cables
Single layer multicore touching on ladder support
* NOTE : Spaced by a clearance between adjacent surfaces of at least one cable diameter. Where the horizontal clearances between adjacent cables exceeds twice cable diameter no correction factor needs to be applied.
14
RATING FACTORS FOR CABLES INSTALLED IN ENCLOSED TRENCHES Rating Factor Trench size 450mm wide x 300 mm deep Conductor cross sectional area
Trench size 450mm wide x 600mm deep
6 single core cables, 4 two-core cables or 3 three-or four-core cables
6 single core cables, 4 two-core cables or 3 three-or four-core cables
Trench size 600mm wide x 760mm deep
8 single core cables, 4 three- or four-core cable
12 single core cables, 8 two- or 6 threecore or four-core cables
12 single core cables, 8 two- or 6 threecore or four-core cables
18 single 24 single core core cables, cables, 16 12 twotwo-core core cables cables or or 12 9 three- or three- or four-core four-core cables cables
2 single core cables, or 1 three-or four core cables
3 single core cables, or 2 two-core cables
4 single core cables, or 2 threeor four-core cables
4 6 10 16
0.93 0.92 0.91 0.91
0.90 0.89 0.88 0.87
0.87 0.86 0.85 0.84
0.82 0.81 0.80 0.78
0.86 0.86 0.85 0.85
0.83 0.82 0.80 0.78
0.76 0.75 0.74 0.71
0.81 0.8 0.78 0.76
0.74 0.73 0.72 0.70
0.69 0.68 0.66 0.64
25 35 50 70 95
0.90 0.89 0.88 0.87 0.86
0.86 0.85 0.84 0.82 0.81
0.82 0.81 0.79 0.78 0.76
0.76 0.75 0.74 0.72 0.70
0.81 0.80 0.78 0.77 0.75
0.76 0.74 0.73 0.72 0.70
0.69 0.68 0.66 0.64 0.63
0.74 0.72 0.71 0.7 0.68
0.67 0.66 0.64 0.62 0.60
0.62 0.60 0.59 0.57 0.55
120 150 185 240 300
0.85 0.84 0.83 0.82 0.81
0.80 0.78 0.77 0.76 0.74
0.75 0.74 0.73 0.71 0.69
0.69 0.67 0.65 0.63 0.62
0.73 0.72 0.70 0.69 0.68
0.68 0.67 0.65 0.63 0.62
0.61 0.59 0.58 0.56 0.54
0.66 0.64 0.63 0.61 0.59
0.58 0.57 0.55 0.53 0.52
0.53 0.51 0.49 0.48 0.46
400 500 630
0.80 0.78 0.77
0.73 0.72 0.71
0.67 0.66 0.65
0.59 0.58 0.56
0.66 0.64 0.63
0.60 0.58 0.57
0.52 0.51 0.49
0.57 0.56 0.54
0.50 0.48 0.47
0.44 0.43 0.41
mm²
*NOTE: When cables having different conductor operating temperatures are grouped together the current rating shall be based on the lowest operating temperature of any cable in the group.
Rating Factor Type of protection
Ambient temperature (oC) 25
30
35
40
45
50
55
60
65
Protective device is intended to provide short-circuit protection only*
1.03
1.0
0.94
0.87
0.79
0.71
0.61
0.50
0.35
Protective device is a semienclosed fuse to BS 3036
1.03
1.0
0.97
0.94
0.91
0.87
0.84
0.69
0.48
* NOTE: Except where the device is a semi-enclosed fuse to BS 3036, the factor also applies where the device is intended to provide overload protection.
15
CURRENT-CARRYING CAPACITY FOR SINGLE-CORE, NON-ARMOURED WITH OR WITHOUT SHEATH TO BS 6004 AND BS 6346 Current-carrying capacity Method of installation Enclosed in Conductor conduit in thermally cross insulated wall etc. sectional area
16
Enclosed in conduit on a wall or in trunking etc.
Clipped direct
On a perforated cable tray horizontal Horizontal flat or vertical spaced
3 or 4 cables threephase a.c. flat and touching of trefoil
2 cables, singlephase a.c. or d.c. flat and touching
3 or 4 2 cables, cables singlethreephase a.c. phase or d.c. or a.c. flat 3 cables and threetouching phase a.c. of trefoil
In free air Vertical flat spaced
Trefoil
2 cables, singlephase 3 cables, a.c. or trefoil, d.c. or 3 three cables phase a.c. threephase a.c.
2 cables, singlephase a.c. or d.c.
3 or 4 cables threephase a.c.
2 cables, singlephase a.c. or d.c.
3 or 4 cables threephase a.c.
2 cables, singlephase a.c. or d.c. flat and touching
mm2
A
A
A
A
A
A
A
A
A
A
A
1.5
14.5
13.5
17.5
15.5
20
18
-
-
-
-
-
2.5 4 6 10 16
19.5 26 34 46 61
18 24 31 42 56
24 32 41 57 76
21 28 36 50 68
27 37 47 65 87
25 33 43 59 79
-
-
-
-
-
25 35 50 70 95
80 99 119 151 182
73 89 108 136 164
101 125 151 192 232
89 110 134 171 207
114 141 182 234 284
104 129 167 214 261
126 156 191 246 300
112 141 172 223 273
146 181 219 281 341
130 162 197 254 311
110 137 167 216 264
120 150 185 240 300
210 240 273 320 367
188 216 245 286 328
269 300 341 400 458
239 262 296 346 394
330 381 436 515 594
303 349 400 472 545
349 404 463 549 635
318 369 424 504 584
396 456 521 615 709
362 419 480 569 659
308 356 409 485 561
400 500 630 800 1000
-
-
546 626 720 -
467 533 611 -
694 792 904 1030 1151
634 723 826 943 1058
732 835 953 1086 1216
679 778 892 1020 1149
852 982 1138 1265 1420
795 920 1070 1188 1337
656 749 855 971 1,079
VOLTAGE DROP FOR SINGLE-CORE, NON-ARMOURED WITH OR WITHOUT SHEATH TO BS 6004 AND BS 6346 2 cables, single-phase a.c.
3 or 4 cables, three-phase a.c.
Conductor cross sectional area
2 cable d.c.
Enclosed in conduit etc. in or on a wall
Clipped direct or on trays touching
In free air (spaced*)
Enclosed in conduit etc. in or on a wall
Clipped direct, on trays or in free air (in trefoil)
Clipped direct or on trays (flat and touching)
In free air (flat spaced*)
mm2
mV / A/m
mV / A/m
mV / A/m
mV / A/m
mV / A/m
mV / A/m
mV / A/m
mV / A/m
1.5 2.5 4
29 18 11
29 18 11
29 18 11
29 18 11
25 15 9.5
25 15 9.5
25 15 9.5
25 15 9.5
6 10 16
7.3 4.4 2.8
7.3 4.4 2.8
7.3 4.4 2.8
7.3 4.4 2.8
6.4 3.8 2.4
6.4 3.8 2.4
6.4 3.8 2.4
6.4 3.8 2.4
25 35 50
1.75 1.25 0.93
1.80 1.30 1.00
1.75 1.25 0.95
1.80 1.30 0.97
1.55 1.10 0.85
1.50 1.10 0.82
1.55 1.10 0.84
1.55 1.15 0.86
70 95 120
0.63 0.46 0.36
0.72 0.56 0.47
0.66 0.50 0.41
0.69 0.54 0.45
0.61 0.48 0.41
0.57 0.43 0.36
0.60 0.47 0.40
0.63 0.51 0.44
150 185 240
0.29 0.23 0.180
0.41 0.37 0.33
0.34 0.29 0.25
0.39 0.35 0.31
0.36 0.32 0.29
0.30 0.26 0.22
0.34 0.31 0.27
0.40 0.36 0.34
300 400 500
0.145 0.105 0.086
0.31 0.29 0.28
0.22 0.20 0.185
0.29 0.27 0.26
0.27 0.25 0.25
0.190 0.175 0.160
0.25 0.24 0.23
0.32 0.31 0.30
630 800 1000
0.068 0.053 0.042
0.27 -
0.175 0.165 0.160
0.25 0.25 0.24
0.24 -
0.150 0.145 0.140
0.22 0.22 0.21
0.29 0.29 0.28
NOTE : * Spacings larger than those specified in free air will result in larger voltage drop.
17
CURRENT-CARRYING CAPACITY FOR MULTICORE, NON-ARMOURED TO BS 6004 AND BS 6346 Current-carrying capacity Method of installation Conductor cross sectional area
Enclosed in conduit in thermally insulated wall etc.
Enclosed in conduit on a wall or in trunking etc.
Clipped direct
On a perforated cable tray OR in free air
1 two-core cable, singlephase a.c. or d.c.
1 three-core cable or 1 four-core cable, three phase a.c.
1 two-core cable, singlephase a.c. or d.c.
1 three-core cable or 1 four-core cable, three phase a.c.
1 two-core cable, single phase a.c. or d.c.
1 threecore cable or 1 fourcore, three phase a.c.
1 two-core cable, singlephase a.c. or d.c.
1 threecore cable or 1 fourcore cable, three phase a.c.
mm²
A
A
A
A
A
A
A
A
1.5
14
13
16.5
15
19.5
17.5
22
18.5
2.5 4 6 10 16
18.5 25 32 43 57
17.5 23 29 39 52
23 30 38 52 69
20 27 34 46 62
27 36 46 63 85
24 32 41 57 76
30 40 51 70 94
25 34 43 60 80
25 35 50 70 95
75 92 110 139 167
68 83 99 125 150
90 111 133 168 201
80 99 118 149 179
112 138 168 213 258
96 119 144 184 223
119 148 180 232 282
101 126 153 196 238
120 150 185 240 300
192 219 248 291 334
172 196 223 261 298
232 258 294 344 394
206 225 255 297 339
299 344 392 461 530
259 299 341 403 464
328 378 434 514 593
276 319 364 430 497
400
-
-
470
402
634
557
715
597
VOLTAGE DROP FOR MULTICORE, NON-ARMOURED TO BS 6004 AND BS 6346
18
Conductor cross-section area
Two-core cable, d.c.
Two-core cable, single-phase a.c.
Three-or four-core cable, three-phase a.c.
mm2
mV / A/m
mV / A/m
mV / A/m
1.5 2.5 4
29 18 11
29 18 11
25 15 9.5
6 10 16
7.3 4.4 2.8
7.3 4.4 2.8
6.4 3.8 2.4
25 35 50
1.75 1.25 0.93
1.75 1.25 0.94
1.50 1.10 0.81
70 95 120
0.63 0.46 0.36
0.65 0.50 0.41
0.57 0.43 0.35
150 185 240
0.29 0.23 0.180
0.34 0.29 0.24
0.29 0.25 0.21
300 400
0.145 0.105
0.21 0.185
0.185 0.160
CURRENT-CARRYING CAPACITY FOR SINGLE-CORE ARMOURED TO BS 6346 Ambient temperature : 30째C Current-carrying capacity Method of installation Clipped direct
Conductor cross 2 cables, sectional singlearea phase a.c. or d.c. flat and touching A mm2 50 193 70 245 95 296
On a perforated cable tray
3 or 4 cables threephase a.c. flat and touching A 179 225 269
2 cables, singlephase a.c. or d.c. flat and touching A 205 259 313
2 cables, single-phase a.c.
3 or 4 cables threeHorizontal phase flat a.c. flat spaced and touching A A 189 229 238 287 285 349
In free air
2 cables, d.c.
3 or 4 cables, three-phase a.c.
Vertical flat spaced
Horizontal spaced
Vertical spaced
Horizontal flat spaced
Vertical flat spaced
3 cables trefoil
A 217 272 332
A 229 294 357
A 216 279 340
A 230 286 338
A 212 263 313
A 181 231 280
120 150 185
342 395 447
309 354 399
360 415 469
327 375 422
401 456 511
383 436 489
415 482 548
396 460 525
385 436 490
357 407 456
324 373 425
240 300 400
525 594 687
465 515 575
550 624 723
492 547 618
593 668 737
568 640 707
648 748 885
622 719 851
566 616 674
528 578 632
501 567 657
500 630 800 1000
763 843 919 975
622 669 710 737
805 891 976 1041
673 728 777 808
810 893 943 1008
777 856 905 967
1035 1218 1441 1685
997 1174 1390 1627
721 771 824 872
676 723 772 816
731 809 886 945
VOLTAGE DROP FOR SINGLE-CORE ARMOURED TO BS 6346 2 cables, single-phase a.c.
3 or 4 cables, three-phase a.c.
Conductor cross sectional area
2 cables d.c.
Clipped direct or on trays (touching)
In free air (spaced*)
Clipped direct, on trays or in free air (in trefoil touching)
Clipped direct or on trays (flat and touching)
In free air (flat spaced*)
mm2
mV / A/m
mV / A/m
mV / A/m
mV / A/m
mV / A/m
mV / A/m
50 70 95
0.93 0.63 0.46
0.95 0.68 0.52
0.97 0.72 0.58
0.82 0.58 0.45
0.84 0.62 0.50
0.86 0.68 0.57
120 150 185
0.36 0.29 0.23
0.43 0.37 0.32
0.50 0.44 0.39
0.37 0.32 0.27
0.43 0.38 0.34
0.50 0.45 0.41
240 300 400
0.180 0.145 0.105
0.27 0.24 0.22
0.35 0.32 0.30
0.23 0.21 0.195
0.30 0.28 0.26
0.37 0.34 0.32
500 630 800 1000
0.086 0.068 0.053 0.042
0.21 0.195 0.185 0.180
0.29 0.27 0.25 0.24
0.180 0.170 0.160 0.155
0.25 0.23 0.22 0.21
0.30 0.28 0.26 0.24
NOTE : * Spacings larger than those specified in free air will result in larger voltage drop.
19
CURRENT-CARRYING CAPACITY FOR MULTICORE, ARMOURED TO BS 6346 Current-carrying capacity Conductor cross sectional area
Method of installation On a perforated cable tray horizontal or vertical Or in free air
Clipped direct 1 two-core cable, single-phase a.c. or d.c.
1 three- or four-core cable, three-phase a.c.
1 two-core cable, single-phase a.c. or d.c.
1 three- or four-core cable, three-phase a.c.
mm2
A
A
A
A
1.5 2.5 4
21 28 38
18 25 33
22 31 41
19 26 35
6 10 16
49 67 89
42 58 77
53 72 97
45 62 83
25 35 50
118 145 175
102 125 151
128 157 190
110 135 163
70 95 120
222 269 310
192 231 267
241 291 336
207 251 290
150 185 240
356 405 476
306 348 409
386 439 516
332 378 445
300 400
547 621
469 540
592 683
410 590
VOLTAGE DROP FOR MULTICORE, ARMOURED TO BS 6346
20
Conductor cross-sectional area
Two-core cable,d.c.
Two-core cable, single-phase a.c.
Three-or four-core cable three-phase a.c.
(mm2)
(mV / A/m)
(mV / A/m)
(mV / A/m)
1.5 2.5 4
29 18 11
29 18 11
25 15 9.5
6 10 16
7.3 4.4 2.8
7.3 4.4 2.8
6.4 3.8 2.4
25 35 50
1.75 1.25 0.93
1.75 1.25 0.94
1.50 1.10 0.81
70 95 120
0.63 0.46 0.36
0.65 0.50 0.41
0.57 0.43 0.35
150 185 240
0.29 0.23 0.180
0.34 0.29 0.24
0.29 0.25 0.21
300 400
0.145 0.105
0.21 0.185
0.185 0.160
APPENDIX - TECHNICAL DATA STRANDED ANNEALED COPPER AND ALUMINIUM CONDUCTORS Maximum resistance of conductor at 20°C
Minimum number of wired in the conductor Nominal cross sectional area
Circular compacted conductor
Circular conductor Cu
Al
Cu
Shaped conductor
Al
Cu
Al
mm²
Annealed copper conductor
Plain aluminium conductor
Plain Wires
Metalcoated wires
ohm/ km
ohm/ km
ohm/ km
1.5 2.5 4 6 10 16 25 35 50 70 95
7 7 7 7 7 7 7 7 19 19 19
7 7 7 7 7 7 19 19 19
6 6 6 6 6 6 6 6 6 12 15
6 6 6 6 12 15
6 6 6 12 15
6 6 6 12 15
12.1 7.41 4.61 3.08 1.83 1.15 0.727 0.524 0.387 0.268 0.193
12.2 7.56 4.70 3.11 1.84 1.16 0.734 0.529 0.391 0.270 0.195
7.41 4.61 3.08 1.91 1.20 0.868 0.641 0.443 0.320
120 150 185 240 300 400 500 630 800 1000
37 37 37 61 61 61 61 61 61 61
37 37 37 61 61 61 61 61 61 61
18 18 30 34 34 53 53 53 53 53
15 15 30 30 30 53 53 53 53 53
18 18 30 34 34 53 53 53 -
15 15 30 30 30 53 53 53 -
0.153 0.124 0.0991 0.0754 0.0601 0.0470 0.0366 0.0283 0.0221 0.0176
0.154 0.126 0.100 0.0762 0.0607 0.0475 0.0369 0.0286 0.0224 0.0177
0.253 0.206 0.164 0.125 0.100 0.0778 0.0605 0.0469 0.0367 0.0291
FORMULA FOR ELECTRIC CALCULATION To calculate
Given
Current (A)
kW
Current (A)
kVA
Current (A)
hp
A =
Power (kW)
VA
kW =
Apparent Power (kVA)
VA
A =
D.C.
A.C. Single Phase
1000 x kW V
A =
1000 x kW V x pf
A =
1000 x kW 1.73 x V x pf
A =
1000 x kVA V
A =
1000 x kVA 1.73 x V
A =
746 x hp V x eff x pf
A =
746 x hp V x eff AxV 1000 -
kW =
A x V x pf 1000
kVA =
AxV 1000
A.C. 3 phase
1000 x kW
1.73 x V x eff x pf
kW =
1.73 x A x V x pf
1000
1.73 x A x V kW = 1000
pf - Power factor of equipment or system under consideration eff - Efficiency of motor of machinery V - Line voltage
21
APPENDIX - TECHNICAL DATA WIRE GAUGES Gauge system
22
Diameter
Cross sectional area
Weight of copper
Weight of Aluminium
A.W.G.
S.W.G.
mm
mil
mm²
sq. mil
CM
kg/ km
kg/ km
6/0 5/0 4/0
7/0 6/0 -
14.732 13.119 12.700 11.786 11.684
580 516.5 500 464 460
170.5 135.2 126.7 109.1 107.2
264,200 209,500 196,400 169,100 166,200
336,400 266,800 250,000 215,300 211,600
1515 1202 1126 969.9 953.2
460.2 365.0 342.0 294.6 289.5
3/0 2/0
5/0 4/0 3/0 -
10.973 10.404 10.160 9.449 9.266
432 409.6 400 372 364.8
94.56 85.01 81.07 70.12 67.43
146,600 131,800 125,700 108,700 104,500
186,600 167,800 160,000 138,400 133,100
840.6 755.8 720.7 623.4 599.5
255.3 229.5 218.9 189.3 182.1
0 1
2/0 0 1 -
8.839 8.252 8.230 7.620 7.348
348 324.9 324 300 289.3
61.36 53.49 53.19 45.60 42.41
95,100 82,910 82,450 70,690 65,730
121,100 105,600 105,000 90,000 83,690
545.5 475.5 472.9 405.4 377.0
165.7 144.4 143.6 123.1 114.5
2 3
2 3 4 -
7.011 6.544 6.401 5.893 5.827
276 257.6 252 232 229.4
38.60 33.63 32.18 27.27 26.66
59,830 52,120 49,880 42,270 41,330
76,180 66,370 63,500 53,820 52,620
343.2 299.0 286.1 242.4 237.0
104.2 90.80 86.88 73.63 71.99
4 5 -
5 6 7
5.385 5.189 4.877 4.621 4.470
212 204.3 192 181.9 176
22.77 21.15 18.68 16.77 15.69
35,300 32,780 28,950 26,000 24,320
44,940 41,730 36,860 33,100 30,970
202.4 188.0 166.1 149.1 139.5
61.49 57.10 50.43 45.28 42.37
6 7 8
8 9 -
4.115 4.064 3.665 3.658 3.264
162 160 144.3 144 128.5
13.30 12.97 10.55 10.51 8.367
20,620 20,110 16,350 16,290 12,970
26,250 25,600 20,820 20,740 16,510
118.3 115.3 93.78 93.41 74.39
35.92 35.02 28.48 28.37 22.59
9 10
10 11 12 -
3.251 2.946 2.906 2.642 2.588
128 116 114.4 104 101.9
8.302 6.818 6.633 5.481 5.261
12,870 10,570 10,280 8,495 8,155
16,380 13,460 13,090 10,820 10,380
73.80 60.61 58.96 48.72 46.77
22.42 18.41 17.91 14.80 14.21
11 12 -
13 14 15
2.337 2.305 2.053 2.032 1.829
92 90.74 80.81 80 72
4.289 4.172 3.309 3.243 2.627
6,648 6,467 5,129 5,027 4,072
8,465 8,234 6,531 6,400 5,185
38.13 37.09 29.42 28.83 23.35
11.58 11.26 8.935 8.756 7.093
13 14 15
16 17
1.828 1.628 1.626 1.450 1.422
71.96 64.08 64 57.07 56
2.624 2.081 2.075 1.650 1.589
4,067 3,225 3,217 2,558 2,463
5,178 4,107 4,096 3,257 3,136
23.33 18.50 18.45 14.67 14.13
7.085 5.618 5.604 4.456 4.290
16 17 18 -
18 19
1.291 1.219 1.150 1.024 1.016
50.82 48 45.26 40.3 40
1.309 1.167 1.0380 0.8227 0.8107
2,029 1,810 1,609 1,275 1,257
2,583 2,304 2,048 1,624 1,600
11.63 10.38 9.226 7.314 7.207
3.534 3.512 2.802 2.221 2.189
19 20 21
20 21 -
0.9144 0.9117 0.8128 0.8116 0.7230
36 35.89 32 31.95 28.46
0.6567 0.6529 0.5189 0.5174 0.4105
1,018 1,012 804.2 802.9 636.3
1,296 1,288 1,024 1,021 810.1
5.838 5.804 4.613 4.600 3.649
1.773 1.763 1.401 1.397 1.108
APPENDIX - TECHNICAL DATA WIRE GAUGES - continued Gauge system
Diameter
Cross sectional area
Weight of copper
Weight of Aluminium
A.W.G.
S.W.G.
mm
mil
mm²
sq. mil
CM
kg/ km
kg/ km
22 23 -
22 23 24
0.7112 0.6439 0.6096 0.5733 0.5588
28 25.35 24 22.57 22
0.3973 0.3256 0.2919 0.2581 0.2452
615.8 504.7 452.4 400.1 380.1
784.0 642.6 576.0 509.4 484.0
3.532 2.895 2.595 2.295 2.180
1.073 0.8792 0.7880 0.6970 0.6622
24 25 -
25 26 27
0.5106 0.5080 0.4572 0.4546 0.4166
20.1 20 18 17.9 16.4
0.2047 0.2027 0.1642 0.1623 0.1363
317.3 314.2 254.5 251.6 211.3
404.0 400.0 324.0 320.4 269.0
1.820 1.802 1.460 1.443 1.212
0.5528 0.5472 0.4433 0.4383 0.368
26 27 28
28 29 -
0.4049 0.3759 0.3606 0.3454 0.3211
15.94 14.8 14.2 13.6 12.64
0.1288 0.1110 0.1021 0.09372 0.08097
199.6 172.0 158.3 145.3 125.5
254.1 219.0 201.5 185.0 159.8
1.145 0.9867 0.9077 0.8332 0.7198
0.3477 0.2997 0.2757 0.2530 0.2186
29 30
30 31 32 -
0.3150 0.2947 0.2860 0.2743 0.2548
12.4 11.6 11.26 10.8 10.03
0.07791 0.06819 0.06422 0.05908 0.05097
120.8 105.7 99.54 91.58 79.01
153.8 134.6 126.7 116.6 100.6
0.6926 0.6062 0.5709 0.5252 0.4531
0.2104 0.1841 0.1734 0.1595 0.1376
31 32
33 34 35 -
0.2540 0.2337 0.2268 0.2134 0.2019
10 9.2 8.928 8.4 7.95
0.05067 0.04289 0.04039 0.03575 0.03203
78.54 66.48 62.60 55.42 49.64
100.0 84.64 79.71 70.56 63.20
0.4505 0.3813 0.359 0.3178 0.2847
0.1368 0.1158 0.1090 0.09653 0.08647
33 34 -
36 37 38
0.1930 0.1798 0.1727 0.1602 0.1524
7.6 7.08 6.8 6.305 6
0.02927 0.02540 0.02343 0.02014 0.01824
45.36 39.37 36.32 31.22 28.27
57.76 50.13 46.24 39.75 36.00
0.2602 0.2258 0.2083 0.1791 0.1622
0.07902 0.06858 0.06326 0.05439 0.04925
35 36 37
39 40 -
0.1426 0.1321 0.1270 0.1219 0.1131
5.615 5.2 5 4.8 4.453
0.01597 0.01370 0.01267 0.01167 0.01005
24.76 21.24 19.63 18.10 15.57
31.53 27.01 25.00 23.04 19.83
0.142 0.1218 0.1126 0.1038 0.08931
0.04313 0.03700 0.03420 0.03152 0.02173
38 39
41 42 43 -
0.1118 0.1016 0.1007 0.0914 0.0897
4.4 4 3.965 3.6 3.531
0.00981 0.008107 0.007968 0.006567 0.006319
15.21 12.57 12.35 10.18 9.794
19.36 16.00 15.72 12.96 12.47
0.08721 0.07207 0.07084 0.05838 0.05616
0.02649 0.02189 0.02151 0.01773 0.01706
40 41 42 -
44 45 46
0.08128 0.07988 0.07113 0.06334 0.06096
3.2 3.145 2.8 2.494 2.4
0.005189 0.005012 0.003973 0.003151 0.002919
8.042 7.768 6.159 4.884 4.524
10.24 9.891 7.842 6.219 5.760
0.04613 0.04456 0.03532 0.02801 0.02595
0.01401 0.01353 0.01073 0.008508 0.007880
43 44 45 -
47 48
0.05641 0.05080 0.05023 0.04474 0.04064
2.221 2 1.978 1.761 1.6
0.002499 0.002027 0.001982 0.001572 0.001297
3.873 3.142 3.072 2.436 2.011
4.932 4.000 3.911 3.102 2.560
0.02222 0.01802 0.01762 0.01397 0.01153
0.006747 0.005472 0.005351 0.004244 0.003502
46 47 48 49
49 -
0.03984 0.03548 0.03159 0.03048 0.02813
1.568 1.397 1.244 1.2 1.108
0.001246 0.0009884 0.0007838 0.0007297 0.0006216
1.932 1.532 1.215 1.131 0.9635
2.460 1.951 1.547 1.440 1.227
0.01108 0.008787 0.006968 0.006487 0.005526
0.003365 0.002669 0.002116 0.001970 0.001678
50
50 -
0.02540 0.02505
1 0.9863
0.0005067 0.0004929
0.7854 0.7641
1.000 0.9728
0.004505 0.004382
0.001368 0.001331
23
APPENDIX - TECHNICAL DATA COMMON CONVERSION FACTOR Equivalent
Reciprocal
Mass 1 cwt 1 oz 1 lb 1 lb 1 ton (long)
= = = = =
50.802 28.349 4536 0.00454 1.016
kg gm kg tonne ( metric) tonne ( metric)
0.0197 0.0352 2.2046 220.26 0.09842
25.4 0.3048 0.9144 1.6093
mm m m km
0.03937 3.2808 1.0936 0.6214
645.16 0.0929 0.8361
mm² m² m²
0.00155 10.7642 1.196
16.387 0.0283 6.229 28.328 0.7645 0.8327
cm3 (ml or cc) m3 gal (lmp) l m3 gal (lmp)
0.061 35.3335 0.1605 0.0353 1.3079 1.2009
0.4535 9.8065 9.964
kgf N kN
2.2046 0.1019 0.10036
0.1013 1.0133 6.894 1.0197
Mpa bar kN/mm2 (kPa) kgf/ cm2
9.869 0.9869 0.145 0.09806
Btu kW.h kJ kgf.m J
0.00393 3413 0.9478 0.00929 0.239
Length 1 in 1 ft 1 yd 1 mile
= = = = Area
1 in² 1 ft² 1 yd²
= = = Volume
1 in³ 1 ft³ 1 ft³ 1 ft³ 1 yd³ 1 fal (USA)
= = = = = = Force
1 lbf 1 kgf 1 ton (long) f
= = = Pressure and Stress
1 atm 1 atm 1 lbf/in² (psi) 1 bar
= = = =
Energy (Work and Heal) 1 HP.h 1 Btu 1 Btu 1 Btu 1 cal
= = = = =
2544.5 0.000293 1.0551 107.59 4.187
1 mil = 0.001 in = 0.0254 mm 1 CM (circular mil) = 0.7854 x 10-6 in² = 0.5067 x 10-3 mm2
PUBLICATIONS REFERRED TO
24
BS 6004
PVC - Insulated Cables (Non-Armoured) for Electrical Power and Lighting
BS 6346
PVC - Insulated Cables for Electric Supply
BS 6360
Conductors in Insulated Cables and Cords
BS 7671
Requirements for Electrical Installations
IEE Wiring Regulations, Sixteenth Edition
MS 136
PVC - Insulated Cables (Non-Armoured) for Electrical Power and Lighting
MS 274
PVC - Insulated Cables for Electric Supply
Leader Cable Industry Berhad (26936-P)
Lot 1385, Tikam Batu Industrial Estate 08600 Sungai Petani, Kedah, Malaysia Tel: 604-438 9988 Fax: 604-438 8497 www.leadercable.com.my Selangor Sales Office Unit 8.2, Level 8, Building A, Peremba Square Saujana Resort, Seksyen U2 40150 Shah Alam, Selangor, Malaysia. Tel: 603-7845 7788/6699 Fax: 603-7845 2258/8323