What are The 7 Important Steps to Perform An Arc Flash Study? — 2019 Important Guide!

7 steps of arc flash study

Are you concerned about the arc flash safety of your facility?

Do you want to know how to carry out a competent arc flash study?

This is your guide to a detailed arc flash analysis! Have a look at the infographic to have a quick review of the seven steps. Read the blog to find out the systematic way in which a proper arc flash study is performed.

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It is important to have a clear understanding about the process of arc flash analysis before beginning the actual work. The following steps are employed to perform an arc flash analysis of a facility.

7 steps to perform arc flash study infographics
7 steps to perform arc flash study infographics

[7 Steps] — The details of every step go as follows:

1. Data Collection​

After setting up the goal of the any sort of analysis (Arc Flash Study in our case), the first and foremost step is to gather information. It is crucial to identify all the required data, the sources of the data and the means of acquiring it.

arc flash required checklist tick marking with pink marker
arc flash required checklist tick marking with pink marker

2. System Modeling

After identifying the ratings and settings of all equipment like panel boards, cables, loads, the power systems engineer then models the system. A graphical layout is drawn on specialized software. That graphical layout is actually the one-line model of the facility.

model one line drawing for power systems studies graph background
model one line drawing for power systems studies graph background

3. Short Circuit Study

Modeling of the power system on the software is followed by two studies which are the pre-requisites of performing an arc flash analysis of the facility. One of these studies is the short circuit study. As the name suggests, it has to do something when a short circuit occur in the power system.

4. Protective Device Coordination Study

The second study required to perform arc flash analysis is the protective device coordination study. In the wake of a short circuit or any other fault condition, a protective device is used to disrupt the power flow in the faulty feeder. That feeder may be of any panel board, switchboard or even a switchgear.

Protective device coordination study
Protective device coordination study

5. Arc Flash Study

Electrical shock hazard sign
Electrical shock hazard sign

Finally, after carrying out short circuit and coordination studies, the power system engineer has gathered all the required parameters to run the arc flash study on the software.

6. Recommendations

The power systems engineer then uses the results of Step 5 to determine the minimum working distance, PPE level and requirements at all the electrical points. These may also be determined using the software. Arc flash labels are also generated.

arc flash ppe clothing
arc flash ppe clothing

7. Implementation

The last step is the implementation step in which the power systems engineer reports the arc flash study results and recommendations to the facility for their on-site application. He submits his findings, results and recommendations in a documented form to the facility owner.

Warning label or sticker Arc flash protection and shock protection
Warning label or sticker Arc flash protection and shock protection
arc flash study general contactor information
arc flash study general contactor information

Let us know if you have any queries regarding this topic and do provide us with your feedback in the comments.

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