Electrical Installation Inspection Thailand

1
Electrical Installation Inspection Thailand

• Organization(s) responsible
• Metropolitan Electricity Authority (3 provinces)
• Bangkok
• Samut Prakarn
• Nonthaburi
• Provincial Electricity Authority (73 provinces)
• Public or private sector
• Public sector

Electrical Safety Systems for the Asia-Pacific
2
Electrical Installation Inspection Thailand

• Voluntary or mandatory
• Mandatory
• Who pays for the inspection?
• Owner of the installation

Electrical Safety Systems for the Asia-Pacific
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Electrical Installation Inspection Thailand

• What requirements used ?
• Layout Plan
• Single Line Diagram
• Load Schedule / Calculation
• Underground Cable Construction
• Specification of Equipment
• Characteristic Curve of Protective Relay
• Test Report
• Any Harmonics and Flicker Generating Equipment

Electrical Safety Systems for the Asia-Pacific
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Electrical Installation Inspection Thailand

• What arbitration or dispute settlement process?
• Performance Based on Reliability and Safety
• Final Decision by Governor
• How is it done is there a prescribed process ?
• Yes, internal process
• Check-list

Electrical Safety Systems for the Asia-Pacific
5
Electrical Installation Inspection Thailand

• Visual inspection ?
• Visual Inspection after Installation
• Measurements made as a part of the inspection
  process ?
• Yes, eg. Ground Resistance
• Frequency of inspection during construction
• No Inspection during construction
• Inspection after Installation

Electrical Safety Systems for the Asia-Pacific
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Electrical Installation Inspection Thailand

• Any on-site testing ?
• Commissioning test
• Insulation
• Phase Sequence
• Grounding System
• Voltage Ratio (Transformer)
• Interlocking
• Protective Relay

Electrical Safety Systems for the Asia-Pacific
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Electrical Installation Inspection Thailand

• Does product certification help the process ?
• Yes
• Who is recognized as product certifier ?
• MEA PEA
• Testing Station (KEMA, CESI, UL, TISI, etc.)
• Any inspection on modification projects ?
• Yes, Inspection on Project Modification

Electrical Safety Systems for the Asia-Pacific
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Electrical Installation InspectionEnforcement
Thailand

• Legal penalties applicable
• No electrical supply until the violation has been
  solved
• License be suspended
• Requirements to get electrical service from the
  utility
• Fill-out Application Form
• ID card and other Documents
• Record Keeping requirements
• Yes, for future inspection

9
Electrical Installation InspectionExpectations
for the Future Thailand

• Changes taking place in the process
• 3 years revision
• A new inspection Testing Standard (MEA)
• Roles of local, state and federal governments
• MEA PEA
• Public Work Dept. Ministry of Interior
• Industrial Works Dept.Ministry of Industry
• BMA (Bangkok Metropolitan Administration)

Electrical Safety Systems for the Asia-Pacific