Transmission Line Post Porcelain Insulator ANSI 57-31/ OEM available
Descriptions:
1. Line post insulators shall conform in all respects to the requirements of ANSI standard.
2. The insulators shall be made of good commercial-grade wet-process porcelain.The entire surface of the insulator, with the exception of a firing surface, shall be glazed.If gray is required, it shall be in accordance with ANSI Z55.1-1967 (R1973).
3. Metal parts shall be made of a good commercial grade of malleable iron, ductile iron, steel, or aluminum. Ferrous parts, other than stainless steel, shall be galvanized in accordance with ASTM A153.
Specifications:
| ANSI CLASS | Creepage distance (mm) | Dry arcing distance (mm) | cantilever strength (kN) | Lower frequency flashover voltage | Critical impulse flashover voltage | Test voltage to ground (kV) | ||
| Dry(kV) | Wet(kV) | Positive(kV) | Negative(kV) | |||||
| 57-31 | 356 | 165 | 12.5 | 70 | 50 | 120 | 155 | 15 |
Competitive advantages:
1.Make the professional power plan project idea for our client depends on the year experience. including burden capacity analysis, category selection ,technology consultation,assistance with machinery room collocation and advice for facilities installation.
2.Provide nanny-type order tracking service for customers, track and feedback every link in the production and sales process, and establish traceable files.
3 .We attach great importance to after-sales service. We will establish a database for users and follow up service regularly.
4. Provide free technical support at any time.
Our products are sold all over the world, you can rest assured.
