High-Voltage Electrical Contractor in Chonburi – Complete Turnkey Service

SJ Electrical Engineering Co., Ltd. is a professional high-voltage electrical contractor providing end-to-end electrical system solutions

Our services cover Chonburi, Rayong, Chachoengsao, and major industrial estates within Thailand’s Eastern Economic Corridor (EEC).

We focus on safety, precision, and full compliance with PEA standardsblue and long-term electrical reliability

💡 Our Services: Comprehensive & End-to-End Solutions

We provide a complete range of electrical system services — from

_External Power Infrastructure (External Power System)_

to _Internal Electrical Systems (Internal Electrical System)_ within buildings.

⚡ High-Voltage Pole Installation

• Installation of PEA / MEA standard prestressed concrete poles or hot-dip galvanized steel poles
• Suitable for industrial factories, high-rise buildings, housing estates, and commercial real estate projects
• Provide layout design, BOQ preparation, and technical drawings
• Conduct on-site inspections and reports ready for government submission

⚡ High & Low Voltage Cabling

• Electrical cabling from transformers to factories, high-rise buildings, and residential projects
• Use of industrial-grade materials such as _XLPE, Copper Cable, and ACSR conductors_
• Supports high current loads with heat and voltage resistance
• Performs IEC / TIS-compliant voltage and resistance testing

⚡ Lightning Protection System Installation

• Design and installation of Air Terminals (Lightning Rods) based on engineering standards
• Full Grounding System installation with copper conductors and electrodes
• Prevents static electricity and current leakage in facilities
• All equipment certified under IEC, UL, and TISI for maximum safety

⚡ Outsource & Emergency Electrical Service

• Rapid response for fallen or damaged poles due to accidents or storms
• 24-hour inspection and repair service available same day
• Equipped with professional tools, test instruments, and service vehicles

🏭 Our Target Clients

SJ Electrical Engineering Co., Ltd. serves a wide range of clients:

• 🏭 Industrial Factories and Manufacturing Plants
• 🏢 High-Rise Buildings, Condominiums, Hotels, and Hospitals
• 🏘️ Residential and Real Estate Development Projects
• 🏛️ Government Agencies and Community Electrical Systems

🌍 Service Areas in the EEC and Surrounding Provinces

Chonburi Province: Amata City, Si Racha, Bo Win, Ban Bueng, Mueang Chonburi

Rayong Province: Map Ta Phut, Ban Chang, Pluak Daeng

Chachoengsao Province: Phanom Sarakham, Plaeng Yao, Mueang Chachoengsao

We also support projects within Thailand’s Eastern Economic Corridor (EEC) development zones.

🚀 Why Choose SJ Electrical Engineering Co., Ltd.

• 👷 Professional Engineers & Certified Electricians
• ⚡ Safety First 100%
• 💰 Fair and Transparent Pricing
• 🧾 Quality Guaranteed with official documentation and certification
• 🌐 Extensive EEC & national project experience
• 🧰 Equipped with specialized testing instruments
• 🔌 Uses IEC / TIS-compliant electrical materials and conductors
• 📑 Provides detailed BOQ, drawings, and quotations for verification
• 🕐 Over 10 years of proven experience