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Costa-Rica ANSI glass insulators for AC systems

As an important part of the power transmission system, the stability and reliability of its performance are directly related to the safe operation of the power grid.

Product Description

Main technical parameters of ANSI glass insulator for AC system

Insulator
Model
Nominal
Diameter
D
(Mm)
Structure
Height
H
(Mm)
Nominal
Creepage
Distance
L
(Mm)
ANSI
Level
Ball socket size electromechanical strength Stretch Negative
Load test
Mechanical Beat
Strike strength
Power frequency
Dry resistance
Power
Pressure
(KV)
Power frequency
Wet resistance
Power
Pressure
(KV)
critical shock
flashover voltage
(KV)

Positive polarity Negative polarity
Impact
Voltage Strike
Wear resistance
Voltage
(p.u.)
Minimum
Power frequency strike
Wear resistance
Voltage
(KV)
Wireless
electrical interference
10kV,
1MHz
(μV)
Insulation
Sub-list
slice weight
Quantity
(Kg)
Ruitai
Type
Diameter D Spacing H Creepage Distance
L
ANSI
Grade
Ball
socket
dimension
Electromechanical
strength
Tensile load test Mechanical
combating
strength
Power
Frequency
Withstand
Voltage
(DRY)
(KV)
Power
Frequency
Withstand
Voltage
(WET)
(KV)
Citical Impulse
Flashover Voltage

(KV)

Impulse
Withstand
Voltage
(p.u.)
Min Power
Frequency
Puncture
Voltage

(KV)

Radio
Interference
Voltage
(10kV,1MHz

(μV)

Net
Weight
Per
Unit

(Kg)
mm inches mm inches mm inches kN lbs kN lbs N-m inch-
pounds
Positive
polarity
Negative
U70B/146A 255  10  146  5-3/4 320  12-5/8 52-3 Type B 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   Type B 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 Type J 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 Type K 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 Type K 220  50000  110  25000  10  90  85  55  140  140    2.8  130  ≤50 7.0