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Oil Barrier Sleeves - INSULTUBE -oil Barrier

Heat Shrink Oil barrier sleeves is applied to PILC Cables for preventing the cable oil from dripping out and increasing the insulation up to 36 kV. These tubes are made from high quality cross linked polyolefin material.

SELECTION CHART

All dimensions in mm

Code	D Min. (mm)	d Max. (mm)	T±10% (mm)
GOBT 30/10	30	10	2.5
GOBT 40/12	40	12	2.5
GOBT 50/16	50	16	2.5
GOBT 75/22	75	22	2.5
GOBT 90/26	90	26	2.5
GOBT 115/34	115	34	3.0

TECHNICAL SPECIFICATION

PROPERTIES	VALUE	STANDARD
Physical
Tensile Strength	12 N/mm² (MPA)(min.)	ASTM D638
Ultimate Elongation	350% (Min.)	ASTM D638
Longitudinal Change	- 10% (Max.)	ASTM D2671
Hardness	45 ± 10 Shore D	ASTM D2240
Water Absorption	0.5 % (max.)	ASTM D570
Thermal
Accelerated Ageing	(120^oC for 500 Hrs)	ASTM D2671
Tensile Strength	11 N/mm2 (Mpa) (min.)	ASTM D 638
Ultimate Elongation	300 % (Min.)	ASTM D 638
Low temperature Flexibility (-40^oC for 4 Hrs.)	No Cracking	ASTM D2671
Heat Shock (250^oC for 30 Min.)	No Cracking or flowing	ESI 09-11
Shrink Temperature	125°C	IEC 216
Continuous Temperature limit	-40°C to + 110°C	IEC 216
Electrical
Dielectric Strength	12 KV/mm. (Min.)	ASTM D149
Volume Resistivity	1 x 10¹⁴ Ohm.cm(min.)	ASTM D257
Dielectric Constant	5 (Max.)	ASTM D150
Chemical
Fungus Resistance	less than 1	ASTM G-21
Salt Spray test	No pitting / no corrosion	ASTM B-17
Chemical Resistance	Good
immersion in following liquids	no visual defects
NaoH (40%), H2so4 (3%)
Toluence, Acetone for 24 hours
at room temp.