1100 Volts Unarmoured ControlCables - 1.5 mm2 
 Type 'YY'  to IS:1554(I) - 1988
Sl.     NUMBER OF CORES                                    
No. Description Unit  2 3 4 5 6 7 8 9 10 12 14 16 19 21 24 27 30 33 37 44 52 61
  Constructional Details            
  Conductor            
1 Materials                       PLAIN ANNEALED COPPER              
2 No of Wire nos.                     One              
3 Shape                        Solid Circular              
  Insulation      
4 Type                       PVC Compound Type A to IS:5831                
5 Nominal thickness  mm 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80
6 Colour Scheme for identification  TWO CORE  - Red, Black               THREE CORE - Red, Yellow, Blue    
    FOUR CORE - Red, Yellow, Blue, Black FOUR CORE - Red, Yellow, Blue, Black, Grey  
    SIX CORE AND ABOVE - Two adjacent cores (I.e counting core & direction core) in each layer   
                 Shall be Blue & Yellow respectovely and remaining cores shall be Grey          
7 Dia over laid up core 6.60 7.10 8.00 8.90 9.90 9.90 10.70 11.40 12.00 13.20 14.50 15.50 16.50 17.50 19.70 20.20 21.10 22.00 23.0 26.30 27.70 29.60
  Dia over inner sheath 7.60 8.10 9.00 9.90 10.90 10.90 11.70 12.40 13.00 14.20 15.50 16.50 17.50 18.50 20.70 21.20 22.50 23.40 24.40 27.70 29.20 31.10
  Inner Sheath  & Outer Sheath                                    
  (Applied in one operation)                                    
8 Type                      PVC Compound Type ST 1 to IS:5831                
9 Colour                       Black                
10 Minimum thickness of inner sheath mm 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4
  Nominal thickness of Outer sheath mm 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.2 2.2
11
Approximate overall diameter of cable mm 13.10 13.60 14.50 15.40 16.40 16.40 17.20 17.90 18.80 19.00 20.30 21.30 22.30 23.30 25.50 26.00 27.30 28.20 29.20 32.80 34.30 36.20
  ELECTRICAL CHARACTERISTICS                                        
12 Resistance of conductor per                                         
  1000m length of completed cable        
  a) Maximum d.c. resistance at 20 Deg C ohm                     12.1              
  b) a.c. resistance at 70 Deg. C ohm                     14.48              
13 Continuous current rating (a.c.) of         
  cables under standard conditions                                        
  i) When laid direct in ground amps 23 21 21 16 15 14 14 13 13 12 11 11 10 10 9 9 9 8 8 7 7 6
  ii) When laid in ducts amps 20 17 17 14 13 13 12 12 11 10 10 9 9 8 8 8 7 7 7 6 6 6
  iii)When laid in air amps 20 17 17 14 13 13 12 12 11 10 10 9 9 8 8 8 7 7 7 6 6 6
14 Reactance per 1000m length of cable                       0.092              
  at 50 Hz ohm    
15 Capacitance between conductors per  Micro                     0.113              
  1000m length of cable farad                                    
16 Minimum volume resistivity of PVC Insu Ohmcm   1 X 10 13 AT 27 Deg C and 1 x 10 10 at 70 Deg C    
17 Maximum permissible shortcircuit  kilo                      0.172              
  current for duration of one second amps                                    
18 Voltage drop per 1000m length of         
  cable (assuming three phase a.c. systems)        
  a) When laid direct in ground volts 666 608 608 463 434 405     376 348 318 318 290   261 261 261   232 203 203 174
  b) When laid in ducts volts 580 492 492 405 376 376     318 290 290 261 261   232 262 203   203 174 174 174
  c) When laid in air volts 580 492 492 405 376 376     318 290 290 261 261   232 262 203   203 174 174 174
  GENERAL :      
19 Approximate net weight per                                         
  1000m length of finished cable kg 150 180 213 247 282 303 336 367 398 458 521 579 682 743 841 918 1025 1109 1217 1426 1675 1916
20 Standard length of cable (Subject to a                                      
  manufacturing tolerance +/-5%) m                     500              
21 Drum Dimensions-                                        
  a) Approximate overall height mm 740 840 840 840 840 840     940 1040 1040 1040 1140   1250 1250 1250   1450 1450 1550 1550
  b) Approximate outer width mm 515 515 515 665 665 665     690 715 715 715 715   855 855 855   855 855 910 910
22 Approximate gross weight of drum kg 125 140 160 180 200 210     285 320 350 380 440   555 590 630   755 880 1060 1175
23 Minimum bending radius for laying of CBL                       12  x  Overall Diameter of Cable                 
24 Recommended pulling force:                                        
  a) When conductor pulled by pulling eye N                     50 x Total Conductor Area in mm2                
  b) When cable pulled with stocking N                     5 x D2 where D is the Overall Diameter of cable in mm                
STRANDED CONDUCTOR IS ALSO PERMISSIBLE IN THESE SIZES