Main technical parameters of glass insulator of ANSI for AC system
Type | Diameter D | Spacing H | Creepage Distance L | ANSI Grade | Ball socket dimension | Elctromechanical strength | Tensile load test | Mechanical combating strength | Power Frequency withstand Voltage (Dry) (KV) | Power Frequency withstand Voltage (kV) (Wet) | Critical Impulse flashover Voltage （kV） | Impulse withstand Voltage (p.u.) | Min Power frequency Puncture Voltage (kV) | Radio Interfere nce Voltage (10KV,1MHz) (μV) | Net Weight Per Unit (kg) | |||||||
mm | inches | mm | inches | mm | inches | kN | lbs | kN | lbs | N-m | Inch- pounds | Postive polarity | Negtive polarity | |||||||||
U70B/146A | 255 | 10 | 146 | 5-3/4 | 320 | 12-5/8 | 52-3 | B shaped | 70 | 15000 | 35 | 7500 | 6.0 | 55 | 80 | 50 | 125 | 130 | 2.8 | 130 | ≤50 | 4.0 |
U100B/146A | 255 | 10 | 146 | 5-3/4 | 320 | 12-5/8 | B shaped | 100 | 22000 | 50 | 11000 | 6.0 | 55 | 80 | 50 | 125 | 130 | 2.8 | 130 | ≤50 | 4.0 | |
U120B/146A | 255 | 10 | 146 | 5-3/4 | 320 | 12-5/8 | 52-5 | J shaped | 120 | 25000 | 60 | 12500 | 7.0 | 60 | 80 | 50 | 125 | 130 | 2.8 | 130 | ≤50 | 4.0 |
U160B/146A | 280 | 11 | 146 | 5-3/4 | 400 | 15-3/4 | 52-8 | K shaped | 160 | 36000 | 80 | 18000 | 10 | 90 | 85 | 55 | 130 | 135 | 2.8 | 130 | ≤50 | 7.0 |
U210B/156A | 280 | 11 | 156 | 6-1/8 | 400 | 15-3/4 | 52-11 | K shaped | 220 | 50000 | 110 | 25000 | 10.0 | 90 | 85 | 55 | 140 | 140 | 2.8 | 130 | ≤50 | 7.0 |
