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PORCELAIN STATION POST INSULATORS

Porcelain Station Post Insulators for systems from 13.8 kV up to 400 kV according to CFE 52810-32 specification. EPRECSA trademark.

Short description CP-8-125 CP-8-150 CP-8-170 CP-8-200 CP-8-250 CP-6-550 CP-6-650 CP-6-650 CP-6-1050 CP-6-1175 CP-6-1300 CP-6-1425 CP-6-1550
Rated System Voltage (kV) 13.8 23 23 34.5 34.5 115 115 138 230 230 230 400 400
Max. Design Voltage (kV) 15.5 27 27 38 38 123 123 145 245 245 245 420 420
Insulation Withstand Voltage Lightining impulse (kV) 135 171 170 225 261 654 730 730 1 246.1 1 175 1 300 1 741 1 802
Switching Impulse in Wet (kV) N/A N/A N/A N/A N/A N/A N/A N/A 750 850 950 950 1 154
Power Frequency in Wet (kV) 67 77 70 134 95 230 275 275 460 N/A N/A N/A N/A
Radio-Interference Power Frequency Voltage Test (kV) 10 15 15 22 22 71 90 90 141 141 242 255 255
Max. µV to 1000 kHz 6.72 6.2 100 5.85 5.85 5.34 143.6 143.6 3.95 500 500 500.5 500.5
Mechanical Failing load Bending (N) 9 900 12 500 8 000 12 323 8 560 10 190 12 470 12 470 6 050 6 000 6 000 6 500 6 710
Torsion (N.m) 2 818 5 708 2 000 3 452 2 840 8 840 8 000 8 000 7 990 3 000 3 000 6 500 6 500
Dimensions Creepage Distance (mm) Type II 455 712 675 990 1 030 3 400 3 900 3 900 6 500 6 125 6 125 11 050 10 830
Type III 550 860 850 1 250 1 230 3 813 3 813 4 495 7 950 7 595 7 595 13 780 13 633
Insulator Height (mm) 305 355 445 475 560 1 120 1 500 1 500 2 300 2 650 2 900 3 150 3 350
Diameter of the insulated part (mm) Type II 150 180 195 193 190 212 225 225 245 450 450 255 270
Type III 170 195 205 210 212 245 235 235 250 450 450 325 309
Diameter between centers of top base drill holes (mm) 76 76 76 76 127 127 127 127 127 127 127 127 127
Diameter between centers of bottom base drill holes (mm) 76 76 76 76 127 127 127 127 254 254 254 254 254
Recommended altitude of instalation (m.a.s.l) 0 -1 500 0 -1 500 1 501 – 2 500 0 – 1 500 1 501 – 2 500 0 – 1 500 1 501 – 2 500 0 -1 500 0 – 1 000 1 001 – 1 500 1 501 – 2 500 1 001 – 1 500 1 501 – 2 500

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