RME Board Exam case studies
RME Board Exam · Put your knowledge to work in context.
The Registered Master Electrician (RME) licensure examination is one of the electrical credentials administered by the Professional Regulation Commission (PRC) of the Philippines. It is intended for practitioners who install, maintain, and supervise electrical wiring systems in buildings and premises, and who want a license that carries the legal authority to do that work. The RME Board Exam case studies are 5 cases and about 3,226 words.
1Pump Circuit: Calculated vs. Measured Voltage Drop
A 1.5 kW, 230 V single-phase centrifugal pump serves a hillside reservoir. Its controller sits at the end of a 75 m cable run from the service panel, fed with 3.5 mm² THHN copper in PVC conduit.
571 words, about 3 min2EV Charger: Continuous Load, Terminal Rating, and Service Capacity
A homeowner wants a 7.2 kW, 230 V single-phase EV charger installed in a garage 25 m of cable run from a 100 A, 230/115 V single-phase panel. The unit is fixed, hard-wired, and draws its full rating for hours at a time.
629 words, about 3 min3The 22 V Neutral: Diagnosing a High-Resistance Neutral
A two-storey residence has a bedroom receptacle that reads 121 V line-to-ground, 99 V line-to-neutral, and 22 V neutral-to-ground while a 1 500 W space heater is plugged in and running. At the service panel, neutral-to-ground reads 0.3 V.
678 words, about 3 min4Six Conductors in a Hot Ceiling Void
A commercial kitchen has three 20 A, 230 V branch circuits wired with 3.5 mm² THHN copper, all pulled through one 25 mm PVC conduit across a ceiling void. Under full load the circuits draw 16 A, 14 A, and 12 A respectively, and all three are classed as continuous loads.
635 words, about 3 min5Nuisance Tripping on a Submersible Pump: Overload vs. Short-Circuit Protection
A 15 kW, 400 V three-phase submersible pump has a nameplate full-load current of 28 A and a service factor of 1.15. It is protected by a 70 A inverse-time circuit breaker and a Class 10 thermal overload relay set at 28 A, mounted in a starter enclosure where the measured air temperature reaches 48 °C.
713 words, about 4 min