1100 Volts Three 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    
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                     Ciruclar Solid/Stranded tranded              
               
                                           
  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 Colour Scheme for identification                        Red, Yellow, Blue                 
6 Dia over laid up core        10.16 11.68 12.51 13.33 16.34 18.31 21.65 24.44 28.27 30.86 34.50 38.27 43.20 47.99 54.61    
7 Dia over inner sheath       11.16 12.68 13.51 14.33 17.34 19.31 22.65 25.64 29.47 32.26 35.90 39.67 45.20 49.99 56.61    
8 Dia over armured (Strip)             15.93 18.94 20.91 24.25 27.24 31.07 33.86 37.50 41.27 46.80 51.59 58.21    
9 Dia over armured (Wire)       13.96 15.48 16.31 17.53 20.54 22.51 25.85 29.64 33.47 36.26 39.90 44.67 50.20 54.99 62.91    
  Inner Sheath     
10 Type                            Extruded/Wrapped            
11 Material                           PVC Taps            
12 Minimum Thickness   0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.5 0.5 0.6 0.6 0.7 0.7 0.7
  Armouring                                      
13 Type & Material   Single Layer of Round    Single Layer of Flat  
        Galvanised Steel wires                   Galvanised Steel Strips            
14 Nominal diameter of wires/thickness of strip  mm 1.4 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
  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 1.56 1.72 1.88 1.88 2.20 2.36 2.52 2.84 3.00
18
Approximate overall diameter of cable(Strip)) mm           18.9 21.9 23.9 27.6 30.6 34.4 37.5 41.5 45.3 51.4 56.5 63.5    
  Approximate overall diameter of cable(Wire) mm     16.6 18.2 19.0 20.63 23.64 25.61 29.25 33.04 37.17 39.96 44.00 49.07 54.90 59.99 68.71    
  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 0.91 1.03 1.064 1.17 1.17 1.18 1.22 1.25 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     610 690 830 630 834 985 1258 1553 1952 2307 2764 3275 4163 4988 6104    
  Approximate net weight per                         
  1000m length of finished cable (Wire) kg   538 640 690 835 1134 1248 1559 2094 2594 2975 3509 4524 5550 7468 8654  
27 Standard length of cable (Subject to a                                        
  manufacturing tolerance +/-5%) m                 500                 250  
28 Drum Dimensions-                                      
  a) Approximate overall height mm 940 940 940 1040 1140 1140 1250 1250 1250 1450 1550 1650 1650 1850 2265 1650 1850 2050 2265
  b) Approximate outer width mm 690 690 690 715 715 715 855 855 855 855 910 1130 1130 1180 1420 1130 1180 1240 1350
29 Approximate gross weight of drum (Strip Arm) kg           607 839 993 1267 1571 1978 2341 2810 3333 4245 5089 6223    
  Approximate gross weight of drum (Wire Arm) kg     534 607 724 827 1066 1242 1554 2070 2595 2984 3523 4536 5570 6551 8700    
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