In-Line and Right Angle Boots


In-Line and Right Angle Boots

Heat Shrink In-line and Right Angle Boots are used to insulate the bushings in cable termination boxes up to 36kV specially where the clearance between phase to phase and phase to earth is less than the normal airclearance.These boots provide protection against flash over in the event of high humidityrodent menace and surge Impulse.The Boots are made from thermally stablised,cross linked,insulating and weather Resistant polymeric material.
The Boots are internally coated.


 
RIGHT ANGLE BOOT PRODUCT DIMENSIONS - RAB Series
SIZE D   d   P R E O T
  E S E S S S S S S
  Min Max Min Max Min Min Min Deg ± 20%
RAB 1 70 37 36 20 130 100 25 105 3.5
RAB2 70 37 50 27 140 110 25 105 4.5
RAB2A 95 37 67 27 140 120 25 105 4.5
RAB 3 145 72 65 34 150 155 35 95 4.5
 
IN-LINE BOOT PRODUCT DIMENSIONS - RILB Series
SIZE D   d   A L B T  
  E S E S S S S S  
  Min Max Min Max Min Min Min ± 20%  
RILB1 80 33 34 20 140 225 40 3.6  
RILB2 80 33 58 20 140 225 40 3.6  
RILB3 80 50 90 50 155 350 40 3.5  
                   
 


Characteristics Value Test Method
Physical Properties    
Specific gravity 1.15±0.2 ASTM D-1505
Water absorption 1 % (max) ASTM D-570 / ISO 62
Tensile strength 6 N/sqmm (min) ASTM D-412/IS0 37
Ultimate elongation 200% (min) ASTM D-412/IS0 37
Hardness 28 ± 3 shore D ASTM D-2240
Thermal Ageing Tests (120¡C for 500hrs)    
Tensile strength 5.5 N/sqmm (min) ASTM D-412/IS0 37
Ultimate elongation 100% (min) ASTM D-412/IS0 37
Electrical Properties    
Volume resistivity 1 x 1012 Ohm - cm (min) ASTM D - 257 / IEC 93
Dielectric strength 10 kV/ min (min) ASTM D - 149 / IEC 243
Dielectric constant 5 (max) ASTM D-150/IEC 250

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