Overhead Line Cover (Insulcover)

Insulcover is a Medium Voltage Wrap Around Overhead Line Cover that provides retrofit insulation for overhead conductors to help prevent electrical outages caused by trees or wildlife coming into the contact with distribution lines.

It is manufactured from high quality Non Tracking Polyolefin material.Gala Overhead Line Covers can be used in many applications upto 66 kV.

IInsulcover is designed to insulate existing bare lines without costly conductor replacement expenditure or additional line hardware. Insulcover may be applied selectively on problem spans when temperatures are above 0oC.

Installation is possible on energized lines utilizing the Split Insulation Tool which attaches directly to the overhead conductor and remains stationary ina single location.

FEATURES & BENEFITS:

• High dielectric strength.
• Excellent UV stabilized & weather resistant
• Passed 5000 Hrs. UV test
• Tracking & Erosion resistant
• Prevent Conductor from Chemical corrosion effected by strong acid, alkali, salt, etc..
• Halogen free
• Insulcover is available in three sizes that covers conductors from 16 to 800 sq.mm.
• GOC comes with Mastic for high voltage applications

Technical Qualification Report : QR 1020

Technical Specification

• PROPERTIES
• VALUE
• TEST METHOD

• Physical
•  
•  

• Tensile Strength
• 9 N/mm2 (Mpa) (min.)
• ASTM D638

• Ultimate Elongation
• 250 % (min)
• ASTM D638

• Density
• 1.20 ± 0.2 gm/cm3
• ASTM D792

• Hardness
• 40 ±5 Shore D
• ASTM D2240

• Water absorption
• 0.5 % (max.)
• ASTM D570

• Accelerated ageing
• (90oC for 7 Days)
• ASTM D2671

• a. Tensile Strength
• ±25% Variation
• ASTM D638

• b. Ultimate Elongation
• ±25% Variation
• ASTM D638

• Low Temperature Flexibility
• No Cracking
• ASTM D2671

• (-40o C for 4 hrs.)
•  
•  

• Continuous Temperature Limit
• -45 to +105oC
• IEC 216

• Dielectric Strength
• 20 KV/mm.(min)
• ASTM D149

• Volume Resistivity
• 1 x 10¹³ Ohm.cm (min)
• ASTM D257

• Dielectric constant
• 5 (max.)
• ASTM D150

• UV Resistance (5000 Hrs.)
• No Colour Change
• ASTM G154

• Resistant to track & erosion
• No Tracking, erosion or ASTM flame failure up to 3.25 KV for 20 min.
• ASTM D2303

Technical Qualification Report : 1036

* The above mentioned values are typical analytical values obtained on material When tested as per applicable standards under controlled laboratory conditions and should not be construed as specfications of the product.