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Composite Long Rod Insulators

Composite Long Rod Insulators
Composite Long Rod Insulators
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Product Code : 02
Price And Quantity
  • Unit of Measure
Product Description
We have got immense goodwill in the market by providing excellent grade Composite Long Rod Insulators for over head transmission & distribution lines. It is manufactured with the use of excellent quality Polymeric/Silicone Rubber base insulators which have several advantages over the conventional ceramic insulators. Accessible in standard specifications and manufactured as per 1EG 61109 it is a special kind of insulator which is used for switching electrical power circuit. The Composite Long Rod Insulators end fittings which connects to a supporting structure are made up of malleable iron and are duly Hot IP galvanized. They are crimped on microprocessor controlled automatic hydraulic crimping machines. Further, they are available in various voltage ratings of 11 kV to 33 kV Ball & Socket; Tongue & Clevis types of end fittings.

Features:
  • Light weight, unbreakable, hydrophobic, resistant to ozone & UV radiations, resistant to earthquake shocks, self cleaning properties & resistant to vandalism.
  • The external sheds are moulded from Stone rubber by injection moulding machinery from Desma, Germany.
Construction Features:
  • The core which is the insulating part of the composite insulator is made up of fibre glass rod. It provides all the necessary mechanical characteristics.
  • FRP rod is made of Silicone rubber insulators manufactured by protrusion process using boron free ECR grade glass fiber.
Quality Control:
  • We conduct all the necessary tests on the insulators as desired by international/national standards like: Dry power frequency voltage test , Mechanical Tensile test, Thermo mechanical test chamber, U.V. weathering Rubber tensile test etcas perl EC 61109.

Technical specification

Description

Units

LRTC11425-4

LRTC11320-3

LRBS11425-4

LRBS11320-3

Sectional Length

mm

307

265

363

300

Voltage Rating

kv

12

12

12

12

Material

Silicon Rubber

Silicon Rubber

Silicon Rubber

Silicon Rubber

Silicon Rubber

Power Frequency Flash over Voltage kv

Dry

90

90

90

90

kv

Wet

70

70

70

70

Critical Impulse Flash over Voltage

POS

155

155

155

155

(kV)

Negative

70

70

70

70

Radio Interference Voltage at 1000 kHz

Test KV

20

20

20

20

RIV (┬Áv)


1

1

1

1

Routine Test Load (1 min.)

Kgf

3500

3500

3500

3500

Torsional Load

Kgf

5530

5530

5530

5530

Specified Mech. Load

Kgf

7000

7000

7000

7000

Minimum Creepage Distance

mm

425

320

425

320

Min. Dry Arcing Distance

mm

165

122

165

122

Type of end fittings


T&C

T&C

T&C

T&C



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