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High-Voltage Booster Shed

High Voltage Booster Shed (HVBS)-CAT-HVBS
  • RAYCHEM
|
  • RAYCHEM HVBS
TE Raychem high voltage booster shed (HVBS) protects against flashovers caused by heavy insulator / bushing wetting and ice buildup.
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Product Features

  • Installation Technology : Heat Shrink

  • Installation Condition : De-Energized Required

  • Contaminant Type Mitigated : Rain / Ice / Snow

Available from

LADD Inc
Overview

Heavy wetting flashover may occur during live-line washing or torrential rain.  A large volume of polluted water flowing down one side of an insulator can bridge much of the leakage distance. It occurs predominantly on large bushings and post insulators where the sheds are closely spaced and are all the same diameter.

Icing flashover occurs when there is heavy snow or ice build up on the insulator skirts. When the temperature starts to rise above freezing, the melting droplets start a stream of water that can induce a flashover.

The booster shed breaks up long cascades of lightly contaminated water. HVBS cools, compresses and extinguishes discharges which run between it and the porcelain insulator. It also acts as an arc-chute or expulsion tube to eject heavy current arcs from its underside.

Superior high-voltage outdoor materials are used in the Booster Shed design. The rugged, non-tracking, UV-resistant, high temperature polymer ensures long-term performance even in the most extreme environmental conditions.

Key Features

  • Works on all voltage classes
  • Enhanced Dry Arc Flashover Performance 
  • Designed to prevent icing and heavy wetting-induced flashovers
  • Custom design
  • REACH and RoHS Compliant

Applications

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FAQ

Question: Can Booster Sheds be installed on equipment without disconnecting?

Answer: Yes, High Voltage Booster Sheds (HVBS) are cold-applied and can be installed on equipment without disconnecting.

 

Question: How many booster sheds do I need to apply to a given insulator/bushing?

Answer: This can vary; it depends on the size, height and design of the equipment. Please reach out to a TE Connectivity representative for advice and guidance

 

Question: Does installing Booster Sheds improve an insulator/bushing's effective creepage?

Answer: No, Booster Sheds are not bonded to the equipment surface and therefore do not contribute to surface creepage. TE Connectivity recommends using High Voltage Creepage Extenders (HVCE/HVCE-WA) for this requirement.

 

Question: Do HVBSs require any special maintenance or inspection?

Answer: No, HVBS can be treated the same as the equipment it is installed on, including any cleaning and inspection. The material is designed for a typical service life of>25 years.

 

Question: What voltage are HVBS's rated for?

Answer: HVBSs are not specified for any particular voltage; they are applicable at any voltage.

Features

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Installation Technology  Heat Shrink

Body Features

  • Primary Product Color  Red

Dimensions

  • Insulator Outside Skirt Diameter Range (mm) 615 | 665 | 835 | 930 | 980

  • Insulator Outside Skirt Diameter Range (in) 24.212 | 26.181 | 32.874 | 36.614 | 38.582

Usage Conditions

  • Installation Condition  De-Energized Required

Operation/Application

  • Compatible Equipment  Bus Bar | Conductors/Leads

  • Contaminant Type Mitigated  Rain / Ice / Snow

Related Materials

Datasheets & Catalog Pages