China wholesale Silicon Insulator – Line Post Insulator 57 Series Tie-Top Type – Yongjiu
China wholesale Silicon Insulator – Line Post Insulator 57 Series Tie-Top Type – Yongjiu Detail:
57 Series Tie-Top Type
Standard: ANSI C29.7-2015
Voltage:11-66kV
1. Tie Top Porcelain Line Post Insulators are designed for upright or angle mounting on a cross arm. They are rated from 25kV to 69kV in usual line voltage, and requiring a cantilever strength of 2800lb. For wood cross arm, long studs are supplied complete with large area flat washer ,square nut and lock nut. For steel cross arm, short studs are supplied with standard hex nuts and lock nuts.
2.Conductor grooves are the wide Tie Top ANSI standard type with head and neck designed for the use Wrap lock or conventional tie wires.
3.Gray glaze is standard for this ANSI type tie top porcelain line post insulators,Brown glaze can be supplied on order.
4.The ANSI standard No. for these Tie top porcelain line post insulators are: 57-1,57-2,57-3,57-4,57-5, with S or L after the number respectively represent short stud or long stud.For example : 57-1S means: short stud is supplied with 57-1 line post insulator.
| ANSI CLASS |
57-1 |
57-2 |
57-3 |
57-4 |
| Creepage Distance (mm) |
356 |
559 |
737 |
1015 |
| Dry Arcing Distance (mm) |
165 |
241 |
311 |
368 |
| Cantilever Strength (kN) |
12.5 |
12.5 |
12.5 |
12.5 |
| Low Frequency Flashover Voltage-Dry (kV) |
70 |
100 |
125 |
140 |
| Low Frequency Flashover Voltage-Wet (kV) |
50 |
70 |
95 |
110 |
| Critical Impulse Flashover Voltage-Pos. (kV) |
120 |
160 |
200 |
230 |
| Test Voltage to Ground (kV) |
15 |
22 |
30 |
44 |
| Maximum RIV at 1000KHZ (µv) |
100 |
100 |
200 |
200 |
| Net Weight (kg) |
4.8 |
7.8 |
11.0 |
18.0 |
Q:CAN YOU HELP US IMPROT AND EXPORT?
A:We will have a professional team to serve you.
Q:WHAT’S THE CERTIFICATES DO YOU HAVE?
A:We have certificates of ISO,CE, BV,SGS.
Q:WHAT’S YOUR WARRANTY PERIOD?
A:1 year in general.
Q:CAN YOU DO OEM SERVICE?
A:YES,we can.
Q:WHAT YOU LEAD TIME?
A:Our standard models are in stock ,as for big orders ,it take about 15 days.
Q:CAN YOU PROVIDE FREE SAMPLES?
A:Yes,please contact us to know the sample policy.
Product detail pictures:
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Being supported by an highly developed and specialist IT team, we could give technical support on pre-sales & after-sales service for China wholesale Silicon Insulator – Line Post Insulator 57 Series Tie-Top Type – Yongjiu , The product will supply to all over the world, such as: Peru, Johannesburg, Czech, Our solutions are widely recognized and trusted by users and can meet continuously changing of economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!
By Ellen from Iran - 2018.02.08 16:45
As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
By Aurora from United Arab Emirates - 2017.09.09 10:18
