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When Do You Need a Licensed Electrical Worker (LEW) in Singapore?
Introduction
In Singapore, certain electrical installations must be managed by a Licensed Electrical
Worker (LEW) to comply with regulations set by the Energy Market Authority (EMA).
For building owners and facility managers, understanding when an LEW is required helps
avoid delays, penalties and operational risks.
What Is a Licensed Electrical Worker (LEW)?
A Licensed Electrical Worker (LEW) is certified to design, supervise, test and manage
electrical installations.
An LEW is responsible for:
- Electrical installation licence application and renewal
- Testing and commissioning
- Submission to EMA and SP Group
- Ensuring regulatory compliance
When Is an LEW Required?
1. Electrical Installations Above 45kVA
If your installation exceeds 45kVA, an LEW must be appointed.
The LEW will handle licence application, compliance and overall responsibility for the system.
2. Licence Application and Renewal
All licensed electrical installations must be:
- Applied through an LEW
- Renewed periodically
Failure to maintain a valid licence may result in penalties or power disconnection.
3. Periodic Inspection (EIR1)
Licensed installations require regular EIR1 inspection to ensure safety and compliance.
An LEW conducts testing, identifies issues and certifies the system.
4. Electrical Upgrading or Load Increase
If your facility undergoes:
- Electrical upgrading
- Load expansion
- System modification
An LEW is required to assess the system and submit approvals.
5. Power Trips or Electrical Issues
Frequent power trips or faults may indicate underlying problems.
An LEW can diagnose issues, recommend solutions and restore system reliability.
Why It Is Important to Engage an LEW Early
Engaging an LEW early helps to:
- Avoid delays in approvals
- Ensure compliance from the start
- Reduce risk of rework
- Maintain reliable system operation
Conclusion
A Licensed Electrical Worker plays a key role in ensuring electrical installations in Singapore remain compliant and operational.
your system is properly managed.
