Low-Voltage Utility Inspection

2018.12.17
Low-Voltage Utility Inspection
Ground transformer Inspection
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Transformer Inspection
  • - Exterior of transformer
  • - Insulating oil
  • - Pressure check
  • - earthing resistance
  • - Other inspection
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Leakage current measurement
  • - Equipment : 4CT portable equipment or CT precise equipment
  • - Procedure : Measure more than once in a year for ground transformer
  • - Data manage : Repair will be required if it is mearued 200mA or higher
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Junction box Inspection & Cleaning
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Inspection Plan
  • - Inspection Detail : Flooded junction box, trash on cable, damaged junction box, rubber board, installation, leakage voltage & insulation measurement
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Repair Plan
  • - splice repair, junction box clean
  • - FRP insulation cap replacement
  • - rubber board + exterior mold installation
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Power supply point Inspection
Supply point that is connected for customer use(power), need to be inspected to prevent possible failure
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