Insulation enhancement system

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M971

(Overhead Line Cover, Overhead Line Insulation Sleeve)

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Applications:

Medium voltage line cover MVLC provides state-of-the-art insulation to help prevent electrical outages caused by trees or wildlife coming into contact with distribution lines. MVLC is designed to insulate existing bare lines without costly conductor replacement expenditures or additional line hardware. To provide insulation and protecting for overhead line core cables, prevent short circuit accidents caused by incidental contact of tree branches or wildlife. Also used for railway contact network overhead line system, improve insulation performance to ensure the safe operation of railway line.

insulation for catenary, droppers and associated conductors against contact with trees, birds, wildlife or even vandalism. Simple, fast wraparound installation.

 

 

Features:

Anti-tracking

Weather resistance

Superior UV and abrasion resistance

Localized installation

Range taking

Easy installation

Lightweight

Live installation

Continuous Temperature Limit: -45 to 105

Standard color: red (black, green and yellow are available on request)

 

 Technical properties:

M971 Tech data

Property

Testing method

Typical data

Tensile strength

ASTM D 2671

10Mpa min

Elongation

ASTM D2671

400% min

Dielectric strength(for 10kV)

IEC 243

25kV/mm

Dielectric strength(for 35kV)

IEC 243

42kV/mm

Dielectric constant

IEC 250

5.0 max

Volume resistance

IEC 93

1.0X1013Ω.cm min

Adhesive to steel

DIN 30672

0.5N/cm

Water absorption

ISO 62/23,14Days

0.5% max

Flammablity(Oi)

ISO 4589

27 min

Low temperature flexibility(-40,4hr)

ASTM D 2671

No crack

 

Dimensions:

M971 dimensions

Code

Size(mm)

Suitable conductor section

Max.conductor diameter

Standard packing

M971

13

< 100 mm2

13mm

20m/reel;40m/carton

M971

18

<185mm2

18mm

20m/reel;40m/carton

M971

23

<300mm2

23mm

20m/reel;40m/carton

M971

38

<800mm2

38mm

20m/reel;40m/carton

 

* Products with adhensive are suitable for application up to 40kV.

  Products without adhensive are suitable for application up to 25kV.

  Other sizes and packing are available on request.



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