Brown Porcelain Post Insulators for Electric Power Distribution

• Application: High-voltage, Low-voltage, High-temperature
• Material: Porcelain
• Structure: Pin Insulator
• Type: A Type Insulator
• Usage: High Voltage Power Transmission, Insulation, Electrical Installation
• Connection Method: Trough Type
• Model NO.: 381mm height 12.5kN
• Size of Bearing Capacity: 40KN
• Certification: ISO9001
• Color: Grey
• Brand: Hrd
• Delivery Time: 30days
• Delivery Way: by Sea
• High-Temperature Performance: Excellent High-Trmperature Resistance
• Electrical Performance: with a Breakdown Voltage of 300-400kv
• Transport Package: Wooden Box
• Specification: Porcelain
• Trademark: HRD
• Origin: China
• Production Capacity: 50000

Product Description

Description:
 
Line post porcelain insulators shall conform in all respects to the requirements of ANSI standard. 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). 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.
 
 

MAIN DIMENSIONS AND STANDARD PARTICULARS

1. Creepage distance                                   737mm

2. Cantilever strength                                  12.5kN

3. Low frequency flashover voltage

    Dry                                                          125kV

    Wet                                                          95kV

4. Critical impulse flashover voltage

    Positive                                                   200kV

    Negtive                                                   260kV

5. Radio influence voltage

    Test voltage to ground                           30kV

    Max. RIV at 1000Hz                                200μV

 
 
Applications:
Horizontal and gain-base line post insulators are often used in applications to avoid the need to install a cross-arm on the pole. ANSI 57-3S Line post insulators are designed to provide rigid support of conducting cable while offering the maximum resistance to damage from electrical or mechanical events.
 
 
Features:
 
Our porcelain insulators are manufactured using a wet porcelain process and cured in an environmentally controlled production facility to ensure a complete and even cure of the porcelain while also resulting in the highest quality surface finish.

 

 

Pre-sales service:

Choose the proper reactor type

Installation recommendations and to provide technical information

Satisfied users of the special design requirements

 

After-sales service:

Offer professional equipment installation instructing

Provide spare parts for wearing parts(such as post insulator, bolt, etc.)