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35kv Porcelain Line Post Insulators
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35kv Porcelain Line Post Insulators

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  • PRW-35KV
  • Composite Polymer
  • A Type Insulator
  • Trough Type
  • ISO9001, IEC IEEE
  • Oei Power
  • Cartons Pallets Wooden Case
  • China Nanyang
  • High-voltage, Low-voltage, High-temperature
  • Suspension Insulator
  • High Voltage Power Transmission
  • 160KN
  • Grey
  • OEIpower
  • IEC IEEE
  • 854690000

Product Description

The Composite Insulators comply with the latest editions of and amendments to, the standards/specification listed below:
 
CSA                                   CANADIAN STANDARDS ASSOCIATION
 
G164-4                        -       Hot dip galvanizing of Irregular Shaped Articles
 
CAN/CSA                  -       Quality Assurance Program Categories 2299.3
 
ANSI                           -      AMERICAN NATIONAL STANDARDS INSTITUTE
 
C29.1                           -      American Standard Test Method For Electrical Power Insulators
 
C29.7                           -      American Standard For Wet-processed Porcelain Insulators (High Voltage Line Post Type) Electrical Power Insulators
 
987-1985                     -       IEEE Guide For Application of Composite Insulators
 
D750                            -      Recommended Practice for Operating Light and Weather Exposure Apparatus (Carbon Arc Type) For Artificial Weather Testing Of Rubber Compounds.
 
D1499                          -      Recommended Practice For Exposure of Plastics.
 
D2240                          -      Rubber Properties, Durometer Hardness
 
D2565                          -      Recommended Practice For Operating Xenon-Arc Light And Water Exposure Apparatus Plastics.
The weathershed of the Post Insulators shall be manufactured from either Hydrated Alumina Ethylene Propylene Copolymer (EPM) as the primary constituent or Silicone Elastomers. The weathershead shall be injection moulded and brought to final cure state in one continuous process to prevent internal undercure or surface overcure. Additionally, the weathershead shall provide hydrophobic surface, even after exposure to tropical marine environment, ultra violent rays and moisture.
Core
 
The rod or the core is manufactured from Fibreglass, having 70-75 by weight of auxiliary aligned glass fibre bonded by an organic resin. The rod is either be cast or pultruded.
The end fittings are have the following properties:
 
i.          are compressed onto the Fibreglass rod member
ii.         are  not move relative to the central Fibreglass rod at applied loads equal to two times the rated Routine Test Load or maximum designed cantilever loads
iii.        are attracted to the rod after completion of all external heat processes used to cure or bond component parts.
 
The insulator are  provided load limiting bases that will deform under longitudinal loading of more than 100% of the rated design cantilever load. 
Performance Characteristics
 
The Polymeric Insulators are meet the under listed performance characteristics.
 
 
             ITEM		  
                11kV		  
                33KV
 
Dry Flashover Withstand		  
                90kV       		 
                180kV
 
Wet flashover withstand 		 
                70kV		  
                165kV
 
Positive Impulse Critical flashover		  
               145kV		  
                300kV
 
Maximum Radio Interference Voltage 		 
Below 1micro volt		  
   Below 1 micro volt         
 
Design Tension Strength		  
                100kN		  
                 100kN
 
Residual Strength after Power Arc		  
                  80kN		  
                   80kN
 
Mechanical Proof Test Load		  
                 45kN		  
                   45kN
 
Maximum Sustained Load		  
                 34kN		  
                   34kN
 
Design Torque Rating		  
                83 Nm		  
                   83 Nm
 
 
The insulator are suitable for accepting both aluminium and copper conductors having cross-sectional areas ranging from 35mm2 to 265mm2. The insulators are designed for mounting on the angle and channel crossarms specified in Specification E14
 
All exposed ferrous part shall be treated against corrosion. Treatment by hot dip galvanizing is preferable.
 
 
 
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