Insulators

Suspension Insulators

High Reliability

High reliability is achieved by long-term experience and accumulation of technology.

Selected High Quality Raw Material

High strength porcelain insulators require not only higher amount of alumina but also

  • Management of mining site
  • Sufficient technology of material analysis
  • Strict incoming inspection - Use only selected material
  • Fine and uniform distribution of particles

Selected High Quality Raw Material

Optimum Design Engineering

  • Straight head design with less stress concentration
  • X-3s >= M&E rating with stable mechanical strength (X: average, s: standard deviation in M&E test)
  • Light weight and compact design

M&E Test: Electromechanical failing load test as per IEC 60383-1

Optimum Design Engineering

Distribution of Mechanical Strength in M&E Test

Advanced Manufacturing Technology

  • Automated mass production system
  • Uniform quality by continuous firing and production control
  • Control of porcelain thermal expansion
  • Forming without material damage
  • Accurate assembling without stress concentration

Forming

Forming

Assembling

Assembling

Strict Quality Control

In addition to ISO 9001 certified,

  • Routine hydraulic pressure test developed by NGK - Effective elimination of manufacturing defects
  • Total quality activities of preventive maintenance

Hydraulic Pressure Test

Principle

Principle

Test Situation

Test Situation

Inquiry about Porcelain Insulators

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