IEC 60168, IEC 60273, ANSI C29.9
ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA
Seismic design, ETGI-1.020, IEEE Std 693, NCh2369
Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1
High altitude correction per IEC & IEEE, ~ 5000m
Wet & Isostatic method, Brown or Gray glaze color
High-strength insulating materials Porcelains Alkalinalumino-silicates
Optional: RTV silicone coating for higher resistance to weathering & UV
Porcelain Station Post Insulator (Pedestal Insulator) - IEC Standard Type
IEC Class | Nominal Voltage | Cantilever Strength
| Torsion Strength | Creepage Distance | Impulse Withstand Voltage | Power Freq. Dry Withstand Voltage | Power Freq. Wet Withstand Voltage | Weight |
kV | kN | kN.m | mm | kV | kV | kV | kg | |
C4-75 | 10 | 4 | - | 230 | 75 | 40 | 28 | 6 |
C8-150 | 20 | 8 | - | 400 | 150 | 75 | 50 | 14.5 |
C4-170 | 35 | 4 | 1.2 | 648 | 170 | 100 | 70 | 12 |
C6-170 | 35 | 6 | 3 | 648 | 170 | 100 | 70 | 17 |
C8-170 | 35 | 8 | 2 | 625 | 170 | 100 | 70 | 16 |
C4-250 | 35 | 4 | 1.8 | 1260 | 250 | 135 | 90 | 27 |
C6-250 | 63 | 6 | 2 | 1160 | 250 | 135 | 90 | 38 |
C4-325 | 63 | 4 | 2 | 1104 | 325 | 175 | 140 | 29 |
C12.5-325 | 63 | 12.5 | 2 | 1104 | 325 | 175 | 140 | 61 |
C4-550 | 110 | 4 | 4 | 2016 | 550 | 300 | 230 | 52 |
C6-550 | 110 | 6 | 6 | 3050 | 550 | 300 | 230 | 76 |
C8-550 | 110 | 8 | 4 | 2830 | 550 | 300 | 230 | 87 |
C6-1050 | 230 | 6 | 6 | 6300 | 1050 | 525 | 460 | 164 |
C8-1050 | 230 | 8 | 10 | 6300 | 1050 | 525 | 460 | 209 |
C10-1050 | 230 | 10 | 10 | 6300 | 1050 | 525 | 460 | 224 |
C12.5-1050 | 230 | 12.5 | 10 | 6300 | 1050 | 525 | 460 | 224 |
C16-1050 | 230 | 16 | 10 | 6300 | 1050 | 525 | 460 | 227 |
Porcelain Station Post Insulator (Pedestal Insulator) - ANSI Standard Type
Item | Data | |||||
ANSI Class | 222 | 225 | 227 | 286 | 362 | |
Basic Impulse Insulation Level (kV) | 95 | 110 | 150 | 550 | 1050 | |
Usual Line Voltage (kV) | 7.5 | 15 | 23 | 115 | 230 | |
Leakage distance/in (mm) | 10-1/2(267) | 15-1/2(394) | 24(610) | 99(2515) | 198(5029) | |
Cantilever Strength/Ib (kN) | 4000(17.8) | 4000(17.8) | 4000(17.8) | 1700(7.6) | 2300(10.2) | |
Tensile Strength/Ib (kN) | 15000(66.7) | 20000(89) | 20000(89) | 20000(89) | 40000(177.9) | |
Torsional Strength/in-Ib (N.m) | 12000(1356) | 14000(1582) | 16000(71.1) | 40000 (177.9) | 20000(533.8) | |
Compression Strength /Ib (kN) | 20000(89) | 20000(89) | 20000(89) | 60000(266.9) | 100000(444.8) | |
Critical Impulse Flashover Voltage, Positive (kV) | 105 | 125 | 170 | 610 | 1210 | |
Withstand Voltage | Low Frequency, Wet/kV | 30 | 45 | 60 | 230 | 455 |
Impulse/kV | 95 | 110 | 150 | 550 | 1050 | |
Radio-Influence Voltage Data | Test Voltage to Ground/kV | 5 | 10 | 15 | 73 | 146 |
Maximum RIV at 1000 KHZ/µV | 50 | 50 | 100 | 200 | 500 | |
Height-“H”/in(mm) | 10(254) | 12(305) | 15(381) | 45(1143) | 10-7/8(276) | |
Shed diameter/in(mm) | 5-15/16(151) | 8(203) | 9(229) | 8-3/4(222) | 7(178) | |
Bolt circle diameter/in(mm) | 5 | 5(127) | 5(127) | 5(127) | 3/4-11 | |
(4)Tapped holes, size/in | 5/8-11 | 5/8-11 | 5/8-11 | 5/8-11 | 8-3/8(293) | |
Cap diameter-“C”/in (mm) | 6-1/4(159) | 6-1/4(159) | 6-1/4(159) | 6-1/4(159) | 424(188.6) | |
Net Weight/Ib (kg) | 22(9.8) | 43(19.1) | 58(25.8) | 142(63.2) | 362 | |
