Applications
3M Cold Shrink Silicone Rubber Termination Kit QT-III, 7620-S, 7680-S and 7690-S Series are used to terminate tape shield, wire shield and UniShield power cable rated 5 - 34.5 kV, having extruded solid dielectric insulation as follows:
Polyethylene (high and low density), cross-linked polyethylene (XLP) and ethylene propylene rubber 9EPR)
The terminations are light weight for either free-hanging or bracket mounting arrangements.
They can be used in both protected and weather-exposed contaminated areas
The amount of airborne contamination determines the operating environment. Operating environments are described as areas having varying degrees of airborne contaminant or pollution severity that may, or may not affect the long-term performance of terminations. These operating environments are defined as light, medium, heavy and extremely heavy variations of pollution severity. The appropriate termination selection depends on the system voltage and operating environment.
Features
- Conforms to the IEEE Standard 48-1990 Class 1 requirements for 5, 8.7, 15 25/28 and 34.5 kV terminations
- One-piece versatile design, allowing quick installation and accommodating a wide range of cable sizes
- Cold Shrink delivery system for easy installation: simply place termination over prepared cable and unwind core to shrink into place (no force fit required)
- Hi-K stress control: specially formulated high dielectric constant material minimizes surfaces stress by more uniformly distributing the electrical field over the entire surface of the insulator
- Compact design provides for easier installation in restricted spaces
- Silicone rubber insulators, EPDM stress control tubes, stress controlling compound and silicone sealing compound are compatible with all common solid dielectric insulations, such as polyethylene (PE), cross-linked polyethylene (XLPE) and ethylene propylene rubber (EPR)
Specification Description
BIL: 150 kV
Breakout Boot: No
Cable Insulation Outside Diameter Range: 0.83-1.53 in
Cable Insulation Outside Diameter Range (metric): 21.1-38.9 mm
China RoHS - Below MCV: Undetermined
EU RoHS Compliant: Undetermined
Indoor/Outdoor: Outdoor
Installed Length: 12.25 in
Installed Length (metric): 31.12 cm
Insulation Rejacketing: No
Number of Skirts: 4
Product Family: QT-III
Product Series: 7690-S
Shielding Type: Tape, Wire, Unishield
Termination Type: Single Termination
Technical
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