CBTM medium wall crosslinked polyolefin bus bar tubing
CBTM is a medium-wall heat-shrinkable crosslinked polyolefin tube designed for insulating medium-voltage busbars. The product provides electrical insulation and surface protection with documented properties from the manufacturer DSG-CANUSA. CBTM has a 3:1 shrink ratio and is rated for use at medium voltage levels up to 25 kV according to the manufacturer's data.
Features and function
- 3:1 shrink ratio.
- Continuous operating temperature -40°C to 125°C; shrink temperature minimum 120°C.
- Halogen-free and flame-retardant; anti-track surface.
- Material: modified PE, free of lead and cadmium.
- Electrical: dielectric strength 20 kV/mm at 2 mm, volume resistivity and surface resistivity specified in manufacturer's data.
CBTM reduces air clearance requirements and protects against accidental flashover and surface discharge. The product is designed to shrink tightly around busbars, achieving an insulating wall thickness corresponding to specified dimensions when properly shrunk.
Documentation
See datasheet from the manufacturer
Typical applications
CBTM is used for insulating medium-voltage busbars in electrical equipment, as specified in the manufacturer's data:
- Insulation of busbars in switchgear.
- Insulation of busbars in transformers.
- Insulation of busbars in generators.
Specifications
- Product: CBTM medium wall crosslinked polyolefin bus bar tubing (DSG-CANUSA).
- Manufacturer's part number: C1106700BK0048 (order number 6700 specified with dimensions in the datasheet).
- Rated for: 25 kV (specified in the manufacturer's datasheet).
- Shrink ratio: 3:1.
- Continuous operating temperature: -40°C to 125°C.
- Shrink temperature: minimum 120°C.
- Order 6700 — expanded internal diameter: 170.1 mm; recovered internal diameter: 58.4 mm; nominal overall wall thickness: 3.20 mm.
- Standard delivery unit for these sizes: 15.24 m (50 ft).
- Material: modified polyethylene (free of lead and cadmium).
- Features: halogen-free, flame-retardant, anti-track.
- Standards and classifications mentioned by manufacturer: ANSI C37.20.2; ANSI C37.20.3; UL file # E205844.
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