Busbar Insulation Tubing (BPTM)
TE Connectivity’s (TE) Raychem BPTM medium-wall, heat shrink tubing provides insulation enhancement and protection against flashover and accidentally induced discharge.
Particularly useful in confined spaces, the BPTM tubing can be used on both circular and rectangular copper or aluminium busbars.
On application of heat, the tubing shrinks snugly over the busbar profile, ensuring that the required minimum wall thickness is obtained. TE’s Raychem BPTM tubing can be installed easily during large scale production using an oven or in the field using a gas torch or hot air.
The BPTM tubing is manufactured from a halogen-free based polymer which has excellent performance in high voltage environments and greatly reduces the noxious and corrosive effects in fire situations.
Use of the BPTM tubing allows equipment designers the freedom to reduce air spacing between busbars, such as in the manufacture of switchgear cabinets where space is at a premium. The BPTM tubing provides flashover protection up to 25 kV.
Key Features:
- Exceptional insulation and long term reliability even at high continuous operating temperatures
- Suitable for indoor and outdoor use
- Excellent anti-tracking properties
- Flame retardant and halogen-free
- Good thermal emissivity
- Long shelf life and can be stored at temperatures up to 50°C without loss of performance
- REACH and RoHS compliant
- UL approved
Product Specifications:
Product Selection Information:
TE’s Raychem tubing BPTM should normally be used on the following busbar sizes
Note: W, H = as supplied w, h = after free recovery. Maximum longitudinal change after free recovery: +5% -10%. Maximum eccentricity (as supplied): 40%, (after free recovery) -75/30 10% - 100/40 15%. Fit the larger size of BPTM if two sizes fit the required application. Installation instructions EPP-3264-12/18 and Material Safety Data Sheet available on request
