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25KV Composite Insulators

25KV Composite Insulators
25KV Composite Insulators
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Product Code : 01
Price And Quantity
  • Unit of Measure
Product Description
We are an outstanding enterprise successfully committed in manufacturing and supplying excellent grade 25KV Composite Insulators for Railways in 9 Tonne, Stay arm hook & Bracket tube configurations. These units are manufactured under I EC 61109 & RDSO specifications TUSPC/OHE/INSCOM/1070 using supreme grade Polymeric/Silicone Rubber. Perfect to be connected to main electrical wires, the offered units ensure excellent protection from surges and short-circuit. In addition to this, our clients can purchase this 25KV Composite Insulators at highly competitive prices from us. 

Features:
  • The external sheds are moulded from Silicone rubber on the latest state of the art injection moulding machinery from Desma Germany.
  • The end fittings are made up of malleable cast iron BM:350 of IS 14329 or SG cast iron conforming to grade 400/151 of IS 1865 iron and are duly Hot dip galvanized to a min of 750-10009/m2as per RDSO specifications.
  • The fittings are crimped on microprocessor controlled automatic hydraulic crimping machines. Creepage distance offered is 1050 mm i.e. 20 mm/kV suitable for medium polluted areas.
Construction Features:
  • The core is made up of fiber glass rod which is a insulating part of the composite insulator which ensures all the necessary mechanical characteristics. The FRP rod is one of core material which is manufactured by protrusion process using boron free ECR grade glass fiber haying required mechanical & electrical characteristics.
Design Tests:
  • It has RDSO certification from Indian railways. They are also tested duly witnessed by RDSO engineer at our works. Further, the composite insulators have been extensively type tested as per the IEC/IS/RDSO specifications.
Quality Control:
  • We have all the requisite infrastructure to carry out routine tests on the insulators as per the international/national standards such as Dry power frequency voltage test, Mechanical Tensile test, Thermo mechanical test chamber, U.V. weathering Rubber tensile test etc as per IEC 61109.

Technical specification

Catalog No.

Units

IR259T1050-7

IR25BT1050-7

IR25STH1050-7

Sectional Length

mm

315

315

315

Voltage Rating

kv

25

25

25

Material


Silicon Rubber

Silicon Rubber

Silicon Rubber

Wetpower Frequency withstand

Insulator vertical

100

100

100

Voltage (kV-rms)

Insulator Horizontal

125

125

125

Dry lightening impulse withstand

POS

240

240

240

Voltage (kV-peak)

Negative

260

260

260

Min. Mechanical Failing Load

Kgf

11000

7000

7000

Bending Moment

Kgf

210

200

200

Minimum Creepage Distance

Min.

1050

1050

1050

Type of end fittings


9 tonne

Bracket Tube

Stay Arm



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