Engineering Resources

Ensuring proper Switchboard Clearances is crucial for maintaining safety and functionality in electrical installations. Switchboards must be located and installed with adequate space, ventilation, and accessibility to prevent overheating, facilitate easy maintenance, and ensure safe emergency evacuations. Switchboard Location – General Requirements Switchboards should...

The current-carrying capacity of a cable is calculated using AS/NZS 3008 and is a critical component in guaranteeing the effectiveness and safety of an electrical installation. It describes the highest continuous current a cable can handle under given circumstances without going beyond its temperature...

Cable Selection is an essential component of electrical installations, particularly in commercial and industrial settings where electrical system dependability and safety are crucial. A thorough set of guidelines for choosing cables for alternating voltages up to and including 0.6/1 kV under typical Australian installation...

The MEN system is a minimum requirement of electrical safety in Australia and New Zealand. This paper shall give an overview of the MEN system, capturing all its definitions, origin, significance, and major elements. MEN System in AS/NZS 3000:2018 The MEN system is a...

Fault levels are crucial for ensuring electrical systems operate safely. The Wiring Rules mandate that protective devices must handle any overcurrent up to the prospective short circuit current at their installation point. Incorrectly rated equipment can be hazardous, and overrating can be unnecessarily costly....

Fault types, specifically open-circuit and short-circuit faults, are crucial in understanding electrical issues in power systems. An open-circuit fault occurs when there is a break or disconnection in the electrical path, making it impossible for current to flow through the intended circuit. A short-circuit...

It is normal for electric motors to draw a large amount of current every time they start. It’s like pushing a car, you need to exert greater force at first until the wheel rolls with less effort. But with motors, it can cause voltage...

Power quality analysis is crucial for assessing the safety and efficiency of electrical systems in buildings and facilities. This process evaluates the flow of power and related factors such as grounding, harmonics, and voltage stability. By analyzing these elements, electrical professionals can identify and...

Power factor, in relation to electrical systems, defines the overall efficiency and economy of your consumed energy. From a commercial facility or industrial operation to the house owner who simply wants to know how he can make his house’s energy usage more efficient, understanding...

Discrimination & Selectivity Studies What is a discrimination study? A discrimination study in an electrical system is an analysis aimed at ensuring that protective devices (such as circuit breakers, fuses, and protection relays) operate in a coordinated manner. The main objective of this engineering...