HRT71 Self Amalgamating EPR Weatherproofing Tape

Description


HRT71 Electrical Tape is a highly conformable 0.76mm thick, self-fusing EPR (Ethylene Propylene Rubber) 
based, high voltage splicing tape. It is a non-vulcanising, shelf-stable tape with excellent electrical properties.
HRT71 Tape can be used as an insulation for low-voltage applications as well as an insulation for splices up to
69kV.
Sizes
Length 9.15m ×Width 19mm ×Thickness 0.76mm
Features/Benefits
Can be used to splice and terminate cables whose emergency
overload temperatures can reach 130°C.
Based on Ethylene Propylene Rubber (EPR).
Physical and electrical properties are unaffected by the degree of stretch.
Self-fusing tape.
Excellent electrical properties.
A special polyester liner which will not stick to the tape upon unwind.
Compatible with all solid dielectric cable insulation:-
Polyethylene (high and low density).
Cross-linked polyethylene (XLPE).
Polyvinyl chloride (PVC).
Butyl rubber.
Ethylene Propylene Rubber (EPR).
Oil-based rubber.

Technical Data  

Properties		Typical Data	Test Method
Tensile Strength		> 2.8 MPa	ASTM D4325
Elongaton		> 880%	ASTM D4325
Fusion		3 Type, Pass	ASTM D 4388
Operational Temperature		Continuous, 90°C.	ASTM D4388
		Emergency Overlaod, 130°C.	ASTM D4388
Dielectric Strength		38.3KV/mm	ASTM D4325
Dielectric Constant	After hot water immersion 24h@70°C	3.00	ASTM D4325
	After water immersion 24h@23°C	3.11	ASTM D4325
Dissipation Factor	After hot water immersion 24h@70°C	0.0398	ASTM D4325
	After water immersion 24h@23°C	0.0314	ASTM D4325
Volume Resistivity	96h@23°C 50%RH	1× 1016 Ω.cm	ASTM D4325
	96h@23°C 96%RH	1× 1016 Ω.cm	ASTM D4325
Water Absorption		0.13%	ASTM D4325
Copper Corrosion		Pass	ASTM D69-06
Ozone Resistance		Pass	ASTM D4388
UV Resistance		Pass	ASTM D4388
Heat Exposure		130°C.	ASTM D4388
Xenon-arc Exposure @1008h		Pass	ASTM D4388

 
Installation Techniques
HRT71 Electrical Tape should be applied in successive half-lapped, level-wound layers until desired build-up
is reached. To eliminate voids in critical areas, highly elongate HRT71 Tape. Stretch Tape in these critical areas
 just short of its breaking point. Doing so will not alter its physical or electrical properties. In less critical areas,
 less elongation may be used. Normally, HRT71 Tape is stretched to ? of its original width in these less critical 
areas. Always attempt to half-lap to produce a uniform build-up. When using 23 Tape for splicing cables from
35kV to 69kV, always elongate the tape throughout the entire splice.