IEC/BS String Electrical Ratings - PAGE4

Open Type Profile
Opentype profile suspension insulator string withstand voltages based on the test procedure of International Standard IEC 60383-93 and British Standard BS 60383
 
 
DIAMETER 380mm / SPACING 127mm
DIAMETER 380mm / SPACING 146mm
DIAMETER 420mm / SPACING 146mm
CAT NO.
F12D/127
F12D/146 - F160D/146 - B160D/146
NO. OF UNITS
POWER FREQUENCY WITHSTAND VOLTAGE (kV)
LIGHTNING IMPULSE WITHSTAND VOLTAGE (kV)
POWER FREQUENCY WITHSTAND VOLTAGE (kV)
LIGHTNING IMPULSE WITHSTAND VOLTAGE (kV)
DRY
WET
DRY
WET
2 95 75 160 110 85 265
3 135 110 225 160 125 235
4 175 145 290 205 165 310
5 215 180 355 255 205 380
6 255 210 420 305 240 450
7 290 245 490 355 280 525
8 330 280 555 405 320 595
9 370 310 620 455 360 670
10 410 345 685 505 395 740
11 450 380 750 555 435 810
12 490 410 815 605 470 885
13 530 445 885 655 510 955
14 570 480 950 705 550 1030
15 610 515 1015 755 590 1100
16 650 545 1080 800 625 1175
17 690 580 1145 850 665 1245
18 730 615 1210 900 705 1315
19 770 645 1280 950 745 1390
20 810 680 1345 1000 780 1460
21 850 715 1410 1050 820 1535
22 890 750 1475 1100 860 1605
23 930 780 1540 1150 895 1675
24 970 815 1605 1200 935 1750
25 1010 850 1675 1250 975 1825
26 1050 880 1740 1290 1010 1895
27 1090 915 1805 1350 1050 1965
28 1130 950 1870 1400 1090 2035
29 1170 980 1935 1450 1125 2110
30 1210 1015 2000 1495 1165 2180