Japan’s shipbuilding stumbles as talent gap widens; Korea leverages brainpower
Electrical
Busbars, Segregation & Internal Arc Behaviour
Why a switchboard is a pressure vessel in disguise Introduction — the switchboard is the ship’s electrical “engine room” On a modern vessel, the main LV switchboard and…
Latest Stories
View all →
Electrical
AC vs DC Systems
Why DC quietly causes the most persistent faults onboard Introduction — DC doesn’t trip the way AC does…
Electrical
230 / 400 / 440 V Shipboard Distribution Systems
Why “low voltage” is the most dangerous phrase onboard Introduction — LV hurts more people than HV Most…
Electrical
HV Interlocking Logic & Racking Operations
Why interlocks prevent fatal mistakes — until people defeat them Introduction — interlocks exist because people make predictable…
Electrical
Marine HV Switchgear
Marine HV Switchgear — Construction, Compartments & Failure Modes Introduction — HV switchgear is designed to be boring…
Electrical
Testing for Dead, Induced Voltage & Capacitive Charge
Why “isolated” is meaningless until you prove zero energy Introduction — the most dangerous voltage is the one…
Electrical
High-Voltage Permits, Interlocks & Earthing Procedures
Why HV systems forgive nothing — and why procedure is the control Introduction — HV doesn’t fail often,…
Electrical
Arc-Flash Boundaries, PPE & Live-Work Reality
Why “it’s only 440 V” keeps injuring ETOs Introduction — voltage doesn’t cause arc flash, energy does Arc-flash…
Electrical
Short-Circuit Levels & Fault Energy on Ships
Why the same spanner mistake ashore becomes an explosion at sea Introduction — fault energy is what kills…
Electrical
Shipboard Earthing Systems
Why earthing on ships is designed for continuity — and why it becomes deadly when misunderstood Introduction —…
Electrical
IMO & SOLAS Electrical Requirements
Electrical
IEEE vs IEC — What Ships Actually Use (and Why It Matters)