Polymeric insulators are a special kind of insulation control, can play an important role in the overhead transmission lines. Now there are three kinds of standards polymeric insulators we usually know.

Features of polymeric insulators:
• Wide product range
• Substation, Traction, Line Post and Transmission Insulators
• Insulators manufactured and tested per IEC and Australian Standards
• Tested at NATA equivalent testing facilites
Parameter of polymeric insulators:
Part Number: CS70-15-CT-H CS70-25-CT-H CS70-35-CT-H CS70-36-BS CS70-36-CT-H CS120-36-BS CS120-36-CT-H CS70-36-BS CS70-36-CT-H CS120-36-BS CS120-36-CT-H LPO-36-TT-1140C CS140-69-SB* CS120-135-SB*
Rated Voltage (kV): 15 25 35 36 36 36 36 36 36 36 36 36 69 135
Min Creepage Distance (mm): 425 645 859 1180 1180 1180 1180 1180 1180 1180 1180 1140 1790 3520
SML (kV): 70 70 70 70 70 120 120 70 70 120 120 12.5 140 120
Critical Impulse Voltage (kV): 155 220 275 275 275 275 275 410 410 410 410 210 395 735
Length (mm): 330+-15 430+-20 525+-25 610+-10 635+-10 640+-10 655+-10 640 640 640 640 480 750+-5 1329
End Fittings: Clevis-Tounge Clevis-Tounge Clevis-Tounge Ball-Socket Clevis-Tounge Ball-Socket Clevis-Tounge Ball-Socket Clevis-Tongue Ball-Socket Clevis-Tongue Tie-Top Clevis-Tounge Clevis-Tounge
The above polymeric insulators types is dimensional and performance characteristics in accordance with IEC and.

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