NORMAL DISC INSULATORS
 
 
     
 
 
Sl.no Product Identification CB-03 CB-31 CB-38 CB-02
1 Porcelain Disc Diameter
mm
 255 255 255 255
2 Unit Spacing
mm
 146 127/140 146 146
3 Ball & Socket Coupling
mm
 16/16 ‘B’ 16/16 ‘B’ 16/16 ‘B’ 16 ‘B’/20
4 Creepage Distance
mm
 292 300 295 292/320
5 Protected Creepage Distance (900)
mm
 165 170 175 165/185
6 Electro-Mechanical Min. Failing Load
kN
 45 70-100 70/80 70-120
7 Pf-Dry Flashover Voltage
kV
 75 75 75 75
8 Pf-Dry Withstand Voltage
kV
 70 70/80 70 70
9 Pf-Wet Flashover Voltage
kV
 45 45 45 45
10 Pf-Wet Wtihstand Voltage
kV
 40 40 40 40
11 Impulse Flashover Voltage
kVp
 120 120 120 120
12 Impulse Withstand Voltage
kVp
 110 110 110 110
13 Power Frequency puncture Voltage
kV
 120
 120 120 120
14 Weight of Unit (Approx)
kg
 4.0
5.3 4.4 5.3/5.6
 
     
 
 
Sl.no Product Identification CB-45 CB-30 CB-14
1 Porcelain Disc Diameter
mm
 255 255 255
2 Unit Spacing
mm
 146 146 146
3 Ball & Socket Coupling
mm
 16'B'/20 20 16 ‘B’/20
4 Creepage Distance
mm
 320 315 340
5 Protected Creepage Distance (900)
mm
 185 190 200
6 Electro-Mechanical Min. Failing Load
kN
 70-120 160 70-120
7 Pf-Dry Flashover Voltage
kV
 75 75 80
8 Pf-Dry Withstand Voltage
kV
 70 70 75
9 Pf-Wet Flashover Voltage
kV
 45 45 48
10 Pf-Wet Wtihstand Voltage
kV
 40 40 42
11 Impulse Flashover Voltage
kVp
 120 120 120
12 Impulse Withstand Voltage
kVp
 110 110 110
13 Power Frequency puncture Voltage
kV
 120 120 120
14 Weight of Unit (Approx)
kg
 5.3/5.6 7.3 6.4/6.7
 
     
 
 
Sl.no Product Identification CB-01 CB-07 CB-09 CB-29
1 Porcelain Disc Diameter
mm
 280 280 280 280
2 Unit Spacing
mm
 170 170 146 146
3 Ball & Socket Coupling
mm
 20 20 16 'B'/20 20
4 Creepage Distance
mm
 350 370 340 370
5 Protected Creepage Distance (900)
mm
 230 260 200 240
6 Electro-Mechanical Min. Failing Load
kN
 160 160 70-120 160
7 Pf-Dry Flashover Voltage
kV
 80 85 80 80
8 Pf-Dry Withstand Voltage
kV
 75 75 75 75
9 Pf-Wet Flashover Voltage
kV
 50 50 50 50
10 Pf-Wet Wtihstand Voltage
kV
 45 45 40 45
11 Impulse Flashover Voltage
kVp
 125 130 120 130
12 Impulse Withstand Voltage
kVp
 120 125 110 120
13 Power Frequency puncture Voltage
kV
 125
125 120 125
14 Weight of Unit (Approx)
kg
 8.3
 8.5 6.7/7.0 8.0
 
 
 
Sl.no Product Identification CB-08 CB-20 CB-10 CB-06
1 Porcelain Disc Diameter
mm
 280 330 330 380
2 Unit Spacing
mm
 170 178/200 195 195/205
3 Ball & Socket Coupling
mm
 20/24 24 24 24/28
4 Creepage Distance
mm
 370 430 470 540
5 Protected Creepage Distance (90)
mm
 230 270 310 360
6 Electro-Mechanical Min. Failing Load
kN
 210 190 320 320/420
7 Pf-Dry Flashover Voltage
kV
 80 85 85 95
8 Pf-Dry Withstand Voltage
kV
 75 80 80 85
9 Pf-Wet Flashover Voltage
kV
 50 55 55 55
10 Pf-Wet Wtihstand Voltage
kV
 45 50 50 50
11 Impulse Flashover Voltage
kVp
 130 140 140 145
12 Impulse Withstand Voltage
kVp
 120 130 130 135
13 Power Frequency puncture Voltage
kV
 130
 140 140 140
14 Weight of Unit (Approx)
kg
 10.2/10.5
12 13.8 15.5/17
 
     
  Ball and Socket parts refer to IS:2486 (Part-II) or BS-3288:Part-3 or IEC-60120. Standard Testing Specification:IS:731 or BSEN- 60383-2 or IEC-60383
Flashover & withstand Voltages are subject to a variation of 5% for PF Dry , 10% for PF Wet and 8% for Impulse characteristics.