The origins of short circuit in network are accidental disturbance caused by undesired contact between the conductors, dielectric breakdown of insulation due to overvoltage's, breaking of cable, falling of trees, contacts with animal or human errors. The effect depend on the architecture of the power system. Short Circuit Analysis is performed to determine the currents that flow in a power system under fault conditions. The purpose of studying a network configuration subject to a short circuit is to :  

1. Identification of risk situation that can possibly causes destruction of devices due to electrodynamic forces,excessive temperature rise and overvoltage. 

2. Accessing the risk and assist in making basic design decision to limit the effect of fault concerning system earthing design, suitable sizing of devices.

Arc flash analyses is important to know the actual level of danger. It is helpful to decide proper personal protective equipment (PPE) required for electrical equipment operator or employee.
Electrical systems are dynamic in nature and change over time due to internal modification, adding new equipment and changing of the load characteristics.It can affect the level of arc flash energy. A study is normally recommended for every time the system changes.

Following parameter should be validated during study :  

• The Arc Flash Boundary 
• The Level of PPE Required
• The Presence of a Flash Hazard

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This subpage can be used as a base for adding more pages. You can duplicate this page in your page manager to maintain this basic structure of header-reference, footer-reference and this editable section. Referenced elements are copies of their original element and cannot be edited. But they change according to their original element, so you only have to make changes once and they apply to all related references.