Practical articles on substation testing, cable jointing, transmission lines, transformers and preventive maintenance — written by the engineers behind NIKKISO-AYSHA, a licensed TNB Rakaniaga Strategik contractor with 30+ years of experience across Malaysia.
What really happens during PMU & PPU substation testing — primary and secondary tests, relay verification, and why commissioning matters before energisation.
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A side-by-side comparison of heat-shrink and cold-shrink jointing techniques for LV and 11kV/33kV cables, with guidance on when to use each.
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Foundation, tower assembly, conductor stringing and sagging — how high-voltage transmission lines are built safely from 132kV up to 500kV.
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Understand ring main units, vacuum and SF6 circuit breakers — how they work, where they're used, and how they're tested and commissioned.
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From delivery and positioning to oil testing and routine servicing — how to install and maintain 11kV/33kV distribution transformers reliably.
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A practical preventive maintenance checklist for 11kV substations — transformer service, RMU inspection, DC battery checks and thermographic scanning.
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Cost, reliability, safety and maintenance compared — how to choose between underground and overhead cabling for LV and HV power distribution.
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The role of feeder pillars, LV boards and distribution cables in getting power from the substation to your premises — explained step by step.
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Structural steel, piping, pumps and fabrication — the mechanical works that support substations, power plants and industrial electrical systems.
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Licences, competency certificates, safety record and track record — the checklist for selecting the right electrical contractor for your project.
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