26 Available Fault Current Label

It also requires this marking to be updated if electrical system modifications occur that affect the equipment. Available fault current labeling.

Bussmann Series Fc2 Calculator Fault Current Calculation

Available fault current is an important consideration for designers installers and inspectors to ensure that equipment is being used only where it is suitable for the application.

available fault current label. Available fault current is the maximum current in a short circuit. The available fault current is also known as the short circuit current. One of the new sections 11024 available fault current requires certain pieces of equipment to be marked with the amount of fault current available to that equipment.

Once you have calculated the potential fault current you need to make sure to label the equipment with this information. Electrical service panels must be labeled with the current and the date it was calculated. Having this information clearly visible on any machines major cabling and the source of the power generators transformers ect will help anyone working in the area make safe decisions.

Get your free fault current label guide this guide is an essential resource for compliantly labeling 3 phase service equipment. This section packs a punch when it comes to safety. The requirement of labeling the available fault current as part of 11024 though did more than just elevate the awareness of meeting 1109 and 11010 when it was introduced as part of nec 2011.

Available fault current is an important parameter for designers installers and inspectors to ensure equipment is being applied within its rating. If it changes the label needs to be replaced with the new calculation and date. It is the maximum current available should there be a short circuit such as a ground fault that could cause an arc flash.

The labeling of available fault current is not a part of arc flash labeling and a separate label is typically used. The requirement for labeling the available fault current elevated the awareness of complying with 1109 and 11010. Quickly exceed nec 11024 standards.

Tesys Iec Contactors And Overload Relays