Frequently Asked Questions
Find quick answers about our electrical services, processes, and support in Singapore.
Electrical Works
We provide electrical installation, upgrading and infrastructure works for commercial and industrial facilities, including power distribution, switchboards and cable systems.
Common signs include frequent power trips, insufficient capacity for new equipment and ageing electrical infrastructure.
Electrical failures are commonly caused by overloading, poor maintenance, loose connections and ageing components.
LEW Services & Compliance
An LEW is required for electrical installations above 45kVA, licence application and renewal, inspection (EIR1), and system modifications.
Yes, our in-house LEWs manage licence application, renewal and compliance for electrical installations.
Failure to renew may result in penalties and possible disconnection of power supply.
Shutdown & Maintenance
Certain maintenance works, such as tightening, cleaning and component replacement, can only be carried out safely during a shutdown.
This includes inspection, cleaning of switchgear, tightening of connections, replacement of faulty components and system testing.
Some inspections can be done while the system is energised, but critical maintenance works require shutdown for safety.
Maintenance frequency depends on system usage and criticality, but regular inspection and scheduled servicing are recommended.
Electrical Safety & Risks
Electrical systems carry high energy loads, and improper maintenance can lead to equipment failure, fire hazards and operational disruption.
Common risks include overheating connections, overloaded circuits, faulty equipment and poor installation practices.
Warning signs include burning smell, overheating panels, frequent tripping and unusual system behaviour.
Regular inspection, proper system design, preventive maintenance and timely rectification of faults help reduce risks.
Generator & Backup Power
Load bank testing is used to verify generator performance under load conditions to ensure it operates reliably during power failure.
Generators are used during emergencies, and failure can result in severe operational disruption, especially in critical facilities.
Solar & EV
Yes, we design and install solar PV systems for commercial and industrial facilities.
Yes, we provide professional solar panel cleaning to maintain system efficiency and performance.
Electrical Consultancy
PE endorsement is required for certain design works, authority submissions and system calculations depending on project requirements.
Yes, we provide design, calculation and authority submission services, including SLD and engineering studies.
- enquiry@sgwireman.com
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