1100 Volts Four Core Armoured Cables
(Aluminium Conductor) Type 'AYWY' & 'AYFY'  to IS:1554(I) - 1988
Sl.     Normal Cross-Sectional Area of Conductor in mm2                        
No. Description Unit  1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240 300 400 500 630
  Constructional Details    
  Conductor (Solid)    
1 Minimum number of wires nos. 1 1 1 1 1 6 6 6 6 12 15 15 15 30 30 30 53 53 53
2 Shape       Circular  solid     compaced             Shaped             
               
                                           
  Conductor (Stranded)    
  Minimum number of wires nos. 3 3 3 3 7 6 6 6 6 12 15 15 15 30 30 30 53 53 53
  Shape       Circular  stranded     compaced             Shaped             
               
                                           
  Insulation      
3 Type                       PVC Compound Type A to IS:5831              
4 Nominal thickness  mm 0.8 0.9 1.0 1.0 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 3.0 3.4
5 Dia over laidup core mm     11.48 13.20 14.14 15.10 17.91 20.87 24.70 27.99 32.39 35.46 39.64 43.98 49.68 55.22 62.92    
6 Colour Scheme for identification                        Red, Yellow, Blue, Black                
7 Dia over inner sheath mm     12.48 14.20 15.14 16.10 18.91 21.87 25.90 29.19 33.59 36.86 41.04 45.58 51.28 57.22 64.92    
8 Dia over armoured (Strip) mm         16.74 17.70 20.51 23.47 27.50 30.79 35.19 38.46 42.64 47.18 52.88 58.82 66.52    
  Dia over armoured (Wire) mm     15.28 17.00 18.34 19.30 22.11 25.07 29.90 33.19 37.59 40.86 46.04 50.58 56.28 63.52 71.22    
  Inner Sheath     
9 Type        Extruded                    Extruded            
10 Material       PVC                   PVC Taps            
11 Minimum Thickness   0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.5 0.5 0.5 0.6 0.6 0.7 0.7 0.7 0.7
  Armouring                                      
12 Type & Material   Steel Round Wire     Single Layer of Flat  
                            Galvanised Steel Strips            
13 Dia over armoured (Strip)         16.74 17.70 20.51 23.47 27.50 30.79 35.19 38.46 42.64 47.18 52.88 58.82 66.52    
  Dia over armoured (Wire)     15.28 17.0 18.3 19.30 22.11 25.07 29.90 33.19 37.59 40.86 46.04 50.58 56.28 63.52 71.22    
14 Nominal diameter of wires/thickness of strip  mm 1.4 1.4 1.4 1.4 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8
  Outer Sheath                                      
15 Type                      PVC Compound Type ST 1 to IS:5831                
16 Colour   Black  
17 Minimum Thickness mm 1.24 1.24 1.24 1.24 1.40 1.40 1.40 1.40 1.56 1.56 1.72 1.88 1.88 2.04 2.36 2.52 2.84 3.00 3.00
18 Approximate overall diameter of cable (Strip) mm         19.74 20.70 23.51 26.47 30.82 34.11 38.89 42.46 46.64 51.78 57.88 64.06 72.52    
  Approximate overall diameter of cable (Wire) mm     17.96 19.68 21.34 22.40 25.11 28.39 33.22 36.51 41.33 44.96 50.44 55.28 61.28 69.22 77.22    
  ELECTRICAL CHARACTERISTICS      
19 Resistance of conductor per                                         
  1000m length of completed cable        
 
a) Maximum d.c. resistance at 20 Deg C ohm 18.1 12.1 7.41 4.61 3.08 1.91 1.20 0.868 0.641 0.443 0.320 0.253 0.206 0.164 0.125 0.1 0.0778 0.0605 0.0469
  b) a.c. resistance at 70 Deg. C ohm 21.72 14.52 8.89 5.53 3.70 2.29 1.44 1.042 0.77 0.532 0.385 0.304 0.248 0.198 0.152 0.122 0.0962 0.0762 0.0608
20 Continuous current rating (a.c.) of                                       
  cables under standard conditions                                      
  i) When laid direct in ground amps 16 21 28 35 46 60 76 92 110 135 165 185 210 235 275 305 335 360 400
  ii) When laid in ducts amps 14 18 23 30 39 50 63 77 95 115 140 155 175 200 235 260 290 305 340
  iii)When laid in air amps 13 18 23 30 40 51 70 86 105 130 155 180 205 240 280 315 375 410 470
21 Reactance per 1000m length of cable                                        
  at 50 Hz ohm 0.092 0.087 0.081 0.073 0.064 0.055 0.054 0.05 0.05 0.046 0.043 0.042 0.042 0.042 0.041 0.040 0.040 0.040 0.040
22 Capacitance between conductors per  Micro                                      
  1000m length of cable farad 0.372 0.408 0.45 0.51 0.62 0.76 0.80 0.90 0.90 1.03 1.050 1.16 1.16 1.16 1.22 1.24 1.30 1.30 1.30
23 Minimum volume resistivity of PVC Insu Ohmcm                     1 X 10 13 AT 27 Deg C and 1 x 10 10 at 70 Deg C              
24 Maximum permissible shortcircuit  kilo                                       
  current for duration of one second amps 0.114 0.190 0.304 0.456 0.760 1.216 1.900 2.660 3.800 5.320 7.220 9.120 11.400 14.060 18.240 22.800 30.400 38.000 47.880
25 Voltage drop per 1000m length of cable                                       
  (assuming cables used on single phase a.c.      
  systems)      
  a) When laid direct in ground volts 602 528 431 335 295 238 190 166 147 125 112 99 91 81 76 69 60 54 51
  b) When laid in ducts volts 527 453 354 287 250 198 157 139 127 106 95 83 76 69 65 59 52 45 43
  c) When laid in air volts 489 453 354 287 256 202 175 155 140 120 105 97 89 81 78 71 68 61 59
  GENERAL :    
26 Approximate net weight per                                         
  1000m length of finished cable (Strip) kg         672 756 993 1206 1565 1927 2476 2930 3477 4216 5237 6361 7926    
  Approximate net weight per                                         
  1000m length of finished cable (Wire) kg     614 728 890 981 1244 1512 2104 2528 3168 3264 4248 5025 6090 7996 9648    
27 Standard length of cable (Subject to a                                        
  manufacturing tolerance +/-5%) m                 500                 250  
28 Drum Dimensions-                                      
  a) Approximate overall height mm 940 940 1040 1140 1140 1250 1250 1250 1450 1650 1650 1850 2050 2265 2365 2050 2050 2265 2465
  b) Approximate outer width mm 690 690 715 715 715 855 855 855 855 1130 1130 1180 1180 1420 1550 1240 1240 1350 1450
29 Approximate gross weight of drum kg 310 355 430 470 495 560 675 775 990 1325 1600 2000 2390 3050 3715 2285 2720 3420 4195
30 Minimum bending radius for laying of CBL                       12  x  Overall Diameter of Cable                 
31 Recommended pulling force:                                        
  a) When conductor pulled by pulling eye N                     30 x Total Conductor Area in mm2                
  b) When cable pulled with stocking N                     9 x D2 where D is the Overall Diameter of cable in mm                
STRANDED CONDUCTOR IS ALSO PERMISSIBLE IN THESE SIZES