Switchboard Rating for Internal Arcing Fault and Peak Current Withstand

Many Electrical Engineers put "20kA @ 0.2s" ratings on the switchboards they are designing but they do not know how to calculate the rating or why they need to include the rating in their switchboard specification.

This is a sad and dangerous reality but even seasoned Electrical Engineers are not doing this calculation. It is either, they just copy whatever has been previously designed or worst, they are just doing guess works.

The purpose of this paper is to enable Electrical Engineers to calculate the Internal Arcing Fault Clearing Time and Peak Current Withstand of any switchboard they are assigned to design.

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Download:Switchboard Rating For Internal Arcing Fault And Peak Current Withstand
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A Filipino Engineer, Registered Professional Engineer of Queensland (RPEQ) - Australia and Professional Electrical Engineer (PEE) - Philippines with extensive experience in concept select, front-end engineering, HV & LV detail design, construction and commissioning of Hazardous and Non-Hazardous Area electrical installations in water and waste water pipeline and pumping facilities, offshore platforms, hydrocarbon process plants and pipelines including related facilities. Hazardous area classification and design certification (UEENEEM015B, UEENEEM016B, UEENEEM017B).

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