Electrical work in Singapore is scoped by two things: the operating voltage of the installation, and its approved load. Together they set which class of Licensed Electrical Worker can lawfully take responsibility for the job — which means "can you do this?" is a licensing question before it is a technical one.
Installation designed and built to the approved load and operating voltage of the premises, with the responsible Licensed Electrical Worker identified before work starts rather than found afterwards.
Insulation resistance, earth continuity, polarity, loop impedance and RCD performance — measured, recorded and handed over as data you can compare against at the next inspection.
Scheduled inspection of boards, protective devices and terminations, with thermographic checks where load or criticality justifies it. Findings ranked by consequence, not listed flat.
Board replacements, capacity upgrades, protective device coordination and rewiring where a building's use or load has moved beyond what the original installation was designed for.