The Arc Flash Study is a species of engineering service more akin to testing and commissioning a facility than to designing or building it. Its methodology depends on precise data that can be obtained only from manufacturer product specifications or from very exacting field inspection. The Genelco approach, developed through years of practice, combines this attention to detail with preparation, execution and verification.
Initially, we prepare SKM computer models into which collected field data will be inserted. This is done in real time by the engineer who will see the study through to its conclusion. This eliminates any hand-off errors because every element of the electrical system, from feeder composition and length to the precise attributes of overcurrent protective devices (OCPD), is imported directly into the program by one person.
We then coordinate with our own electricians, who are well versed in the extraordinary demands of mission critical facilities. They are trained to notice details that can significantly change operating characteristics and they understand the technologies involved. This familiarity of electrician with engineer significantly reduces communication errors.
Our technique alerts the team immediately when an installed OCPD has a non-standard feature, or if the resulting time-current curve does not reside in the SKM library. In such cases we are typically able to get updated information before we leave the building, virtually eliminating the “go-back” problem.
An additional benefit of our process is that it allows us to test the construction of the computer diagram while in the field, to identify gaps or anomalies and to fix them right away. This shortens the overall process, increases the quality of information and assures the client that when we leave the property the study is already well underway. Thus, we achieve not only greater accuracy, but with the increased efficiency we can deliver greater savings to our clients.