China 70 KN 120 KN 160 KN High Voltage Insulator 11 KV 33 KV Ceramic Disc Insulator for sale

70 KN 120 KN 160 KN High Voltage Insulator 11 KV 33 KV Ceramic Disc Insulator

Price Negotiable

Price: $8

MOQ: 10 pcs

Delivery Time: 15 days

Brand: MacweyTEK

Product Description

70 KN 120 KN 160 KN Porcelain Disc Insulator and Ceramic Suspension Insulator for 11 KV 33 KV High Voltage Applications

The U120B porcelain disc insulator features a mechanical load capacity of 120 kN, with a nominal diameter of 255 mm, height of 146 mm, and creepage distance of 320 mm. Its power frequency puncture voltage is 110 kV.

U120B Porcelain Disc Insulator Specifications

Items	Data
1. Leakage distance	320mm
2. Coupling size	R/IEC 120 20
3. Power frequency puncture voltage	110kV
4. Power frequency withstand voltage
Dry	70kV
Wet	40kV
5. Rated E&M failing load	120kV
6. Radio-influence voltage data
1) Test voltage to ground	10kV
2) Maximum RIV at 1000KHz	50μV
7. Rated E&M failing load	120kN
8. Tension proof load	60kN

Technical Specifications Across IEC Classes

IEC Class	U120B	U160BM	U160BL	U210B	U240B	U300B
Coupling size	16	20	20	20/24	24	24
Diameter (mm)	255	280	280	280	280	280
Spacing (mm)	146	155	170	170	170	195
Creepage distance (mm)	320	350	380	380	405	390
Combined M&E strength (kN)	120	160	160	210	240	300
Impact strength (N.m)	10	10	10	11.3	11.3	11.3
Routine proof test load (kN)	60	80	80	105	120	150
Power frequency dry withstand voltage (kV)	70	75	75	75	75	75
Power frequency wet withstand voltage (kV)	40	42	42	42	45	45
Dry lightning impulse withstand voltage (kV)	100	110	110	110	110	130
Power frequency puncture voltage (kV)	110	110	110	120	120	130
Test voltage RMS to ground (kV)	10	10	10	10	10	10
Maximum RIV at 1000kHz (kV)	50	50	50	50	50	50
Net weight, approximate (kg)	5.6	7.4	7.8	10.4	11.1	14.3