Self-Amalgamating Insulating Rubber Tape

Product Description

Self-Amalgamating Insulating Rubber Tape is a self-amalgamating ethylene propylene rubber
(EPR) tape, used on solid dielectric cable for electrical insulation and jacketing in splices up to
69KV and for building stress cones in terminations up to 35KV. The tape comes with a separator
that is removed during the taping process. Its 0.76mm thickness and quick amalgamation

facilitates a rapid, void free insulation build-up that is electrically stable and moisture proof. WT-
RT-23 is suitable for use with conductors rated at 90°C with an emergency overload rating of

130°C. The tape is also resistant to corrosion, chemical and ultraviolet light.

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Self-Amalgamating Insulating Rubber Tape

Application

• Electrical insulation and jacketing in splices of solid dielectric cable up to
69KV.
• Building stress cones in terminations of solid dielectric cable up to 35KV.
• Jacketing of indoor terminations.
• Bus bar insulation and corrosion protection.
• Jacket repair and restoration in all types of cable.

 

Property

Value Test

Method / Reference

Tensile strength

>2.8MPa

ASTM D 4325

Thickness

0.76mm

ASTM D 4325

Elongation at break (%)

>880%

ASTM D 4325

Fusion

Pass

ASTM D 4388

Operating Temp - continuous

90℃

ASTM D 4388

Operating Temp - emergency overload

130℃

ASTM D 4388

Dielectric Strength (KV/mm)

38.3

ASTM D 4325

Dielectric constant （90℃*24h)

2.8

ASTM D 4325

Dielectric Constant

After water immersion After hot water immersion

3.00 3.11

ASTM D 4325 ASTM D 4325

Dissipation Factor

After water immersion 24h@23℃ After hot water immersion 24h@70℃

0.0398 ASTM D 4325 0.0314

ASTM D 4325 ASTM D 4325

Volume resistivity

96h@23℃, 50%RH 96h@23℃, 96%RH

1 X 1016 Ω.CM 1 X 1016 Ω.CM

ASTM D 4325 ASTM D 4325