Heat Shrinkable Heat Shrink Creepage Extension
Sheds ( Rain Sheds / Skirts )


 
Heat shrinkable rain sheds
Heat Shrinkable Creepage Extension Sheds are manufactured from high quality cross linked polyolefin material that offer exceptional non tracking behavior, insulation and long term service reliability. They possess advantageous physical properties, excellent aging stability and very good resistance against chemicals. Due to its excellent combination of properties as an inbuilt character of the base polymer, find proven applications in electrical segment of industries.
The following are few typical applications where these extension sheds are used:
  • As an integral part of Heat Shrinkable terminations upto 72 kv voltage class for Indoor & outdoor application where they provide extension to creepage path of the cores of the cable terminations.
  • To provide extension creepage length and to avoid continuity during rainy season and to avoid short circuiting of the electrical net words as case to case bases as per system requirement.
Code A(Ø) d(Ø)
E. Min.		 d(Ø)
S.Max.		 H
Min		 Lº T
S. Min.
BRS - 130-1 93 35 12 17 10 2.6
BRS - 130-2 125 47 20 20 10 2.8
BRS - 130-3 143 57 30 24 10 2.8

*E - as supplied. * S - after unrestricted recovery.

TECHNICAL SPECIFICATIONS
PROPERTIES
UNIT
VALUE
STANDARD
Thermic
  1. Continuous Temp. Limit
  2. Shrink Temperature
  3. Heat shock Test
    (30 Mint. at 200°C
  4. Low Temp. Flexibility
    (4 hours at - 40°C)
°C
°C
-

-		 -55 to 125
>125
No cracking/
No Flow
No cracking
 

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     ASTM D-2671
 
Physical
  1. Tensile Strength
  2. Elongation
  3. Hardness
  4. Water Absorption
N/mm²
%
Shore D
%		 >8(min)
>=200(min)
28
<=0.5		     ASTM D 638
    ASTM D 638
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Electricals
  1. Volume resistivity
  2. Dielectric Strength
  3. Dielectric Constant
Ohm cm
kv/mm
- 		1 x 10¹²
10 kv(MIN)
5(max)		      ASTM D-257
     ASTM D-149
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