Insights & guides
Electrical guides for Singapore homes & businesses
Straight answers from a Grade 8 Licensed Electrical Worker — on EV chargers, supply upgrades, renovation wiring, and the LEW and EMA rules that apply to your project.
EV ChargingWhy Your EV Charger Needs a Periodic Inspection
An EV charger is one of the hardest-working circuits in your home or building. Singapore requires periodic inspection under SS 722 — every 24 months for a landed home, and every 6 to 12 months for commercial and public chargers. Here is what it covers and who must do it.
RenovationRenovating an HDB BTO or Condo? Why the Electrical Work Needs a Licensed Electrician
Your interior designer bundles 'electrical' into the package — but who actually pulls the wires? In Singapore, renovation electrical work must be done under a Licensed Electrical Worker, by trained electricians. Here's why that matters for your safety, your insurance and your handover.
EV ChargingSS 722 Explained: What Singapore's New EV Charging Standard Means for You
TR 25 became SS 722 on 1 April 2026. What actually changed, whether it is mandatory yet, and what it means if you are installing a home charger now.
EV ChargingType A vs Type B RCD for EV Chargers: Which Does Your Home Need?
EV chargers can introduce DC fault current a normal RCD may miss. The difference between Type A and Type B in plain English — and why most modern chargers let you use Type A.
ComplianceWhat Is SS 638? Singapore's Wiring Code, Explained for Homeowners
The rulebook behind every safe electrical installation in Singapore — RCD protection, cable sizing, earthing, and who signs it off — without the jargon.
Power SupplyDo You Need to Upgrade to 3-Phase Power?
EV chargers, multiple aircon units, a big reno — when single-phase runs out of headroom, and what a three-phase upgrade actually involves in Singapore.
EV ChargingEV Charger Installation in Singapore: A Homeowner's Guide
LTA registration, the new SS 722 standard, choosing between 7.4–22 kW, what drives the cost, and how a landed-home install actually works.
ComplianceDo You Need a Licensed Electrical Worker (LEW) in Singapore?
What an LEW is, how the grades work, when the law requires one, and how EMA installation licences and endorsements fit together.