elastomer

ELASTOMERIC CABLES


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ELASTOMERIC TRAILING ROUND FLEXIBLE CABLES (VIR/TRS)
ELASTOMERIC TRAILING ROUND FLEXIBLE CABLES (HOFR) CSP SHEATHED
ELASTOMERIC TRAILING ROUND FLEXIBLE CABLES (HOFR) PCP SHEATHED

High ambient temperature in a Steel, chemical, cement/sugar plants or in aeronautics, ships, coalfields and refineries call for materials that can withstand the severe ageing conditions during operation and also to ensure appropriate current rating at ambient temperature. EPR/Butyl rubber insulation stands up to 85ºC continuous conductor temperature at operating condition and Silicon rubber can withstand conductor temperature up to 180ºC. The Neoprene, Nitrile and CSP sheathing are formulated with high abrasion resistance, oil and fire resistance properties. They are tough and Flexible to cope with tropical condition of mining and rough floor surfaces. EPR insulation with chlorosulphonated sheathing can withstand high ambient conditions having long durable ageing properties. For selection of right type of Elastomeric Cable, the comparative characteristics have been shown in these charts: PHYSICAL & ELECTRICAL Properties.
ELASTOMERIC TRAILING ROUND FLEXIBLE CABLES (VIR/TRS) GENERAL PURPOSE SHEATHED CABLES, ATC, COPPER CONDUCTOR UPTO 1100 VOLTS TO IS: 9968 (PART-I) 1988 VIR INSULATED & TRS SHEATHED
RANGE (Sq. mm )			CONDUCTOR			VOLTAGE GRADE			SPECIFICATION
1Core = 0.5 to 630			Tinned Annealed Copper			1.1 KV			IS: 9968 (Part-I) / 1988
2Core = 0.5 to 240
3Core = 0.5 to 185
4Core = 0.5 to 185
5Core = 0.5 to 16
1 to 61 Core = 0.5 to 2.5
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ELASTOMERIC TRAILING ROUND FLEXIBLE CABLES (HOFR) HEAT RESISTANT, OIL RESISTANT & FLAME RETARDANT ATC. COPPER CONDUCTOR UPTO 1100 VOLTS TO IS: 9968 (PART-I) 1988 EPR INSULATED & CSP SHEATHED
RANGE (Sq. mm )			CONDUCTOR			VOLTAGE GRADE			SPECIFICATION
1Core = 0.5 to 630			Tinned Annealed Copper			1.1 KV			IS: 9968 (Part-I) / 1988
2Core = 0.5 to 240
3Core = 0.5 to 185
4Core = 0.5 to 185
5Core = 0.5 to 16
1 to 61 Core = 0.5 to 2.5
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ELASTOMERIC TRAILING ROUND FLEXIBLE CABLES (HOFR) HEAT RESISTANT, OIL RESISTANT & FLAME RETARDANT ATC. COPPER CONDUCTOR UPTO 1100 VOLTS TO IS: 9968 (PART-I) 1988 EPR INSULATED & PCP SHEATHED
RANGE (Sq. mm )			CONDUCTOR			VOLTAGE GRADE			SPECIFICATION
1Core = 0.5 to 630			Tinned Annealed Copper			1.1 KV			IS: 9968 (Part-I) / 1988
2Core = 0.5 to 240
3Core = 0.5 to 185
4Core = 0.5 to 185
5Core = 0.5 to 16
1 to 61 Core = 0.5 to 2.5
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COMPARATIVE PERFORMANCE DATA FOR TYPICAL ELASTOMERIC INSULATING AND SHEATHING MATERIALS Grade:- Very Good : *** Good : Good to Fair : * Fair : ** Poor : *
PHYSICAL PROPERTIES
Materials	Natural Rubber including blends with SBR	HOFR PCP Neoprene		NBR/CSP	BUTYLE		EPR	EPR/CSP		CSP	Silicon Rubber
Resistance to Ozone	*	********		********	********		*****	*****		*****	*****
Corona	*	********		********	********		*****	*****		********	********
Weather	*	********		********	**		********	*****		*****	*****
Oil	*	********		*****	*		*	********		********	**
Water	********	**		********	********		********	*******		*******	**
Chemicals	**	**			********		**	********		********	**
Solvents	*	********		********	*		*	**		**	*
Abrasion	*******	********		********	*		*	********		********	**
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Grade:- Very Good : *** Good : Good to Fair : * Fair : ** Poor : *
ELECTRICAL PROPERTIES

Insulation Resistance	********	*		*	********		********	********		*******	********
Voltage Breakdown	********	*******		*******	********		********	********		********	********
A.C. Losses	********	*		*	********		********	*******		*******	********
Formulated as insulation	General Service	x		x	Heat Resisting General Purpose		Heat Resisting General Purpose	Heat Resisting Flame Retardant Composite Insulation		Heat & Oil Resisting Flame Retardant	Heat Resisting
Formulated as insulation	Either General Purpose or Heavy Duty	GPOFR HDOFR GPHOFR		GPOFR HDOFR GPHOFR HDHOFR	Special Application		x	x		GPHOFR HDHOFR	Special Heat Resisting Application
Conductor Limiting Temp. ºC Max. Continuous operation	60	70		70	85		90	90		85	150
Max. Short Circuit	200	250		250	250		250	250		250	350
Material limiting Temp. ºC Min. Flexing duty	-55	-30		-20	-55		-40	-30		-30	-55
Min. for installation	-55	-40		-30	-55		-50	-35		-35	-55
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