Switchboard Cooling Solutions – Ensuring Optimal Performance
All electrical equipment produces heat. Protective devices, power breakers, busbars, contactors, relays, power supplies, PLCs, and drives all produce heat as they work. In many electrical systems, these devices are densely packed in metal cabinets with very little room for air to circulate. If...
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MEN System in AS/NZS 3000:2018 Explained!
The Multiple Earthed Neutral, or MEN system, is one of the most basic principles that underlie electrical safety in Australia. It is integrated into the process of electricity generation, distribution, and ultimately its connection to domestic, commercial, and industrial premises. The AS/NZS 3000:2018 Australian...
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A Guide to Electric Switchboard Covers
Switchboard Covers are any panel, plate, or barrier used to enclose or shield areas of a switchboard that would otherwise be accessible. Switchboard covers are placed over openings, internal areas, or live areas to prevent direct access to the energized components. The term switchboard...
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Electrical Cabinet – Functions and Benefits
An electrical cabinet is a closed assembly that is intended to contain electrical and electronic equipment like switchgear, protection relays, control systems, power electronics, and communication hardware. The main purposes of an electrical cabinet are: • To shield equipment from environmental factors • To...
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Rogowski coil – What is the purpose? Explained!
A Rogowski coil is a type of current sensor, named after the German engineer Walter Rogowski who described the concept back in the early 20th century. Instead of using a solid magnetic core like a CT, a Rogowski coil is simply a long wire...
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AS/NZS 60529 – The Standard for Enclosure IP Rating
The full title of the standard is “Degrees of protection provided by enclosures (IP Code)”. It’s the Australian and New Zealand adoption of the international IEC 60529 standard, which defines a classification system for how enclosures protect electrical and electronic equipment. The standard sets...
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How does a 3-phase distribution board work?
A distribution board (often called a switchboard or panelboard) is an assembly that receives power from the main supply and distributes it to subsidiary circuits. It also provides protection against overloads, short circuits, and earth faults using circuit breakers and protective devices. A 3-phase...
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What Are CT Chambers And Metering Compartments
CT chambers houses Current Transformers (CTs) used to measure electrical consumption. CT chambers are specially designed enclosures that house current transformers used to measure low-voltage (LV) electrical supplies. Depending on the electricity supplier, these chambers may either be provided by the supplier or need...
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Corrosion Impact on Mild Steel Enclosures
Corrosion is one of the major problems faced by industries around the globe. It is primarily a degradation of material resulting from its reaction with environmental factors. Corrosion is a major issue in particular for mild steel casing since it poses many challenges for...
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How to Use AS/NZS 3000 Wiring Rules Effectively
Navigating the AS/NZS 3000 Wiring Rules can seem daunting at first, but understanding how to efficiently use its structure will make the process much simpler. There are two primary methods for finding specific information: using the index at the back of the document and...
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