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Cowin Electrical Co., Ltd.

Post Insulator, ANSI Tr-04, Ceramic Insulator manufacturer / supplier in China, offering ANSI Tr-04 porcelain Line Post Insulator, Disconnector Switch (Gang Switch), 69kv 6kn Polymer Post Insulator and so on.

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Supplier Homepage Product Insulator ANSI Tr-04 porcelain Line Post Insulator

ANSI Tr-04 porcelain Line Post Insulator

FOB Price: US $2 / Piece
Min. Order: 300 Pieces
Min. Order FOB Price
300 Pieces US $2/ Piece
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Port: Ningbo, China
Production Capacity: 100000 Per Month
Payment Terms: L/C, T/T, Western Union, Negotiable

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Basic Info
  • Model NO.: TR-04
  • Material: Porcelain
  • Usage: High Voltage Power Transmission
  • Size of Bearing Capacity: 60KN
  • Color: White
  • Trademark: COWINELEC, OEM or ODM
  • Origin: Zhejing China
  • Application: High-voltage
  • Structure: Post Insulator
  • Connection Method: Trough Type
  • Certification: ISO9001
  • Brand: Cowinelec, OEM or ODM
  • Transport Package: Wooden Case
  • HS Code: 85462090
Product Description
1.Creepage: 305mm
2.Nini Cantilever Failing Load Upright: 9kN
                                           Underhung: 4.5kN
Minimum Tension Failing Load: 22.7kN
Minimum Torsion Failing Load:0.8kN.m.
Minimum compression Failing Load: 45.5kN
3.Wet Power Frequency withstand vol.: 45kV
Lighting Impulse withstand vol.: 110kV
Lighting impulse flashover voltage,Positive: 115kV
4.Radio influnce voltage:
test voltage to ground: 10kV
Max RiV at 1000kHz: 80uV
5. ANSI C29.8 standard
weight: 5.5kgs.
ANSI  ClassTR-202TR-205TR-208TR-210TR-214TR-216
Creepage  Distance  mm26739461094010921829
Cantilever  Strength  kN8.
Tensile  Strength  kN383844.5536271
Torsion  Strength  N.   m678791904113013561695
Compression  Strength  kN44.544.544.566.766.7111

Low  Frequency  Flashover  Voltage
Dry  Flashover  kv6085110145170235
Wet  Flashover  kv405575100125180
Critical  Impulse  Flashover  VoltagePos.   kv105125170225280390
Neg.   kv120200250290340475
WetLow  Frequency  Withstand  voltagDry  Withstand  kv36507095120175
Wet  Withstand  kv30456080100145
Impulse  Withstand  Voltage  kv95110150200250350
Net  Weight  Each  Approx.   kg4.5711162130
Type TR-286TR-288TR-308TR-316
Figure No. 1234
Creepage distance                  mm2515294641915029
Cantilever strength               KN7.566.236.455.56
Tension strength                   KN8989111111
Torsion strength                  N.m452045201017010170
Compression strength              KN267267333333
Power frequency flashover voltageDry           KV385435575660
Wet           KV285335475570
Critical impulse flashover voltagePostive      KV61071010101010
Negative    KV78090012401250
Power frequency withstand voltageDry             KV280335465545
Wet            KV230275385455
Impulse withstand voltageKV5506509001050
Net weightkg6070120150
Applicable standard                                                      ANSI

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