Shamawar offers the most comprehensive range of porcelain post insulators up to highest AC and DC system voltages with the most progressive technology, engineering and life time. Short production time, tighter tolerances, flexible design, extra-high mechanical strength and extended creepage distances are possible by isostatic process.

Further optimized insulator designs have been developed by Shamawar with ultra-high mechanical strength and maximum extended creepage distances.

It was not possible to manufacture such insulators using conventional porcelain production technology, but the Isostatic technology enables such designs to be produced by Shamawar Insulators.

Product Description


Length per piece max. 2.900 mm
max. 114.17 in
Shed diameter max. 520 mm
max. 20.47 in
Core diameter 60 mm – 300 mm
2.4 in – 11.81 in
Creepage distance up to 55 mm/kV
up to 2.2 in/kV

Our advanced post designs include the following advantages:

  • fewer single sections per insulator column, therefore fewer metal parts
  • shorter column heights while maintaining IEC 60815 requirements and fulfilling all additional electrical requirements
  • improved flashover distance
  • better pollution performance via improved Form Factor acc. to IEC 60815
  • reduced weight, better material utilization, optimized logistics
  • Decreased metal usage (fewer points of exposure to corrosion)
  • less field concentrating positions
  • improved mechanical stability, rigidity and robustness

Depending on environmental conditions and the requested pollution performance of the insulator, we are able to produce all possible shed designs as defined in the IEC 60815 including:

  • alternating shed
  • plain shed
  • under rib shed
  • rain shed
  • plus unique shed designs e.g. for 800 kV DC applications
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