Line Post Composite Insulator 275kV with Flang and Drop Tongue

Line Post Composite Insulator

1. Line post composite insulator catalog and technical datas

   Type	Rated voltage (kV)	Mechnicla load (kN)	Length (mm)	Nominal creepage distance (mm)	Insulation distance (mm)	Wet withstand voltage (kV)	Lightning impluse withstand voltage (kV)
   FZSW-66/12.5	66	12.5	1030±30	2410	744	140 (Flashover)	330
   FZSW-69/13	69	13	865±20	1910	624	45 (Flashover)	208 (Critical impulse flashover voltage)
   FZSW-69/13	69	13	866±20	1900	614	45 (Flashover)	208 (Critical impulse flashover voltage)
   FZSW-66/20.6	66	20.6	1006±15	2420	754	265 (Flashover)	670 (Critical impulse flashover voltage)
   FZSW-66/20.6	66	20.6	1040±20	2410	744	210	420
   FZSW-66/12.5	66	12.5	860±20	1920	635	200 (Flashover)	450 (Critical impulse flashover voltage)
   FZSW-138/6	138	6	1506±30	4060	1253	91 (Flashover)	364 (Flashover)
   FZSW-138/6	138	6	1510±20	4070	1270	91 (Flashover)	364 (Critical impulse flashover voltage)
   FZSW-138/9	138	9	1810±30	4920	1543	450 (Flashover)	1034 (Critical impulse flashover voltage)
   FZSW-138/13	138	13	1588±15	4290	1336	405 (Flashover)	805 (Critical impulse flashover voltage)
   FZSW-132/14.5	132	14.5	1230±15	2990	945	350	555
   FZSW-132/14.3	132	14.3	1506±15	4070	1263	430 (Flashover)	815 (Critical impulse flashover voltage)
   FZSW-132/14.6	132	14.6	1496±10	4060	1253
   FZSW-132/15.1	132	15	1415±10	3780	1171	370	640
   FZSW-115/16	115	16	1342±15	3480	1052	365 (Flashover)	665 (Critical impulse flashover voltage)
   FZSW-132/17.5	132	17.5	1274±30	3230	995	275	560
   FZSW-132/17.9	132	17.9	1255±30	3030	983	275	560
   FZSW-275/6	275	6	2979±30	8950	2727	610	1330
   FZSW-220/9	220	9	2125±30	6240	1912	480	1030
   FZSW-145/4	145	4	1515±30	4050	1246	275	650
   FZSW-362/4	362	4	3000±30	9010	2787	950 (Wet operating impluse withstand)	1300

2. knowledge

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4. For the reconstruction of old lines, we recommend the selection of composite insulators according to the following principles.

5. As far as possible to choose the structure height of the composite insulator.

6. For the structure height of 1240mm and the following composite insulators, the probability of a variety of flashover is relatively high, some of the power sector has put forward to strengthen the height of the composite insulators requirements, Shandong Power Company in 1995 on the following requirements of the various branches of the electric power to choose the structure height of 1440mm 110kV composite insulators, over the past few years, such insulators are seldom flashover.

7. Altitude of more than 1000m above sea level, the structure height should be longer, high-altitude areas, especially in areas with seasonal water sources, the next season is the south of the large migratory birds inhabiting the place, and in winter is a large migratory birds from Siberia, the use of structural height of 1350mm composite insulators, there is no effective anti-bird measures, the occurrence of the "unknown" (bird damage) flashover probability will be very high. The probability of flashover is very high.

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9. Product photos

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