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Medium Voltage Heat Shrink/ Fusion tapes. HVBT heat-shrinkable tape is ideal for use on complex shapes and where busbars cannot be disconnected. HVBT tape shrinks 30% longitudinally and an adhesive layer flows and seals the layers of tape during installation. As with the other components in the system, the adhesive does not bond to metalwork, allowing easy removal for inspection and maintenance. Available in four widths from 25 mm to 100 mm. A spiral formed tape is also available for ease of use on overhead conductors. MVFT is a self-amalgamating tape providing insulation enhancement and protection against accidentally induced discharge. Quick and easy to install, upon application the tape amalgamates the overlapped layers together, producing a complete seal.
HVBT Adhesive-coated tape for insulation enhancement against accidentally induced discharge
- Flashover protection to at least 15 kV increasing to 25 kV with a second layer
- Outstanding electrical and mechanical properties
- Heat Shrink
MVFT Self-amalgamating tape for insulation enhancement against accidentally induced discharge
- Flashover protection to at least 15 kV increasing to 35 kV with a second layer
- Silicone polymer with versatility of a wraparound product
- Cold applied
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Specifications
| HVBT | |||
|---|---|---|---|
| Rated Voltage (kV) | Phase- Phase (mm) | Phase- Ground (mm) | IEC 71-2 Air Clearance (mm) |
| Round Busbars | |||
| 12 | 55 | 65 | 120 |
| 17.5 | 70 | 85 | 160 |
| 24 | 95 | 125 | 220 |
| 36 | 150 | 205 | 320 |
| Rectangular Busbars | |||
| 12 | 65 | 75 | 120 |
| 17.5 | 85 | 104 | 160 |
| 24 | 115 | 150 | 220 |
| 36 | 200 | 285 | 320 |
| MVFT Selection Information: | ||||
|---|---|---|---|---|
| Catalog Number | Color | Width UOM: Inches (mm) | Supplied Length UOM: Yards (M) | Std. Pack |
| MVFT-G-2-12(B4) | Gray | 2 (50) | 12 (11) | 4 Rolls |
Technical Information
| HVBT | |||||||
|---|---|---|---|---|---|---|---|
| Product Selection Rectangular Busbars Width | IAC Application Recommended Product | IEEE Applic ations | HVBT Length Needed / meter of Busbar | IEC Round Busbars Diameter | Application Recom mended Product | IEEE Applications | HVBT Length Needed/ meter of Busbar |
| 25 mm | HVBT-12-A | HVBT-1-R | 10.0 | 12 mm | HVBT-12-A | HVBT-1-R | 5.0 |
| 50 mm | HVBT-14-A | HVBT-2-R | 7.6 | 25 mm | HVBT-14-A | HVBT-2-R | 5.0 |
| 75 mm | HVBT-14-A | HVBT-2-R | 11.4 | 50 mm | HVBT-14-A | HVBT-2-R | 10.0 |
| 100 mm | HVBT-14-A | HVBT-2-R | 15.6 | 75 mm | HVBT-14-A | HVBT-2-R | 16.7 |
| 150 mm | HVBT-14-A | HVBT-2-R | 25.0 | 100 mm | HVBT-16-A | HVBT-4-R | 10.0 |
| 200 mm | HVBT-16-A | HVBT-4-R | 15.6 | ||||
| MVFT | |
|---|---|
| Product Testing Result | Result |
| AC Dry Withstand/1 min. | 15 kV (One Insulation Layer) 35 kV (Two Insulation Layers) |
| Loading Cycling 30 days @ 130˚C | No Deformation or Splitting Low |
| Temperature Install @ 0˚C | Installable Without Difficulty |
| Test | Specification | Results |
|---|---|---|
| Accelerated Aging 168 hours 150˚C Tensile Strength Ultimate Elongation | ASTM D2671 | > 1,000 psi > 450% |
| Low Temperature Flexibility 4 hours -40˚ | ASTM D2671 | No cracking |
| Dielectric Strength 3.4 mm thickness | ASTM D149 | > 300V/mil |
| Tracking and Erosion Resistance | ASTM D2303 | No Tracking, erosion to top surface or flame failure after: 1 hour at 2.5 kV 1 hour at 2.75 kV 1 hour at 3.0 kV 20 min. at 3.25 kV |
Certifications
CPRI
More info available on request
ERDA
More info available on request
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