Electricity plays a crucial role in how our society functions. Any facility’s smooth operation depends on a safe and reliable electric power system. No matter what kind of building it is – hospital, office building, school, industrial or commercial – an electrical disaster can be devastating. So, how do you minimize these potentially disastrous events? To put it simply, by completing electrical engineering studies at varying levels of development. An Electrical Engineer’s primary responsibility is to ensure that electrical systems are safe and reliable. But, what are these studies and when are they needed?
When are Electrical Studies Needed?
Knowing which study is right for your facility is important for it to function safely, properly, and up to code. The first step is knowing WHEN studies are needed.
Typically, electrical engineering studies when:
- Adding new electrical services to the utility
- Adding new electrical services to existing electrical distribution
- Changes to existing equipment in the existing electrical system
So, lets dive in and take a closer look at WHY each study is necessary…
3 Types of Electrical Engineering Studies
1. Adding new electrical services to the utility
Electrical engineering studies are required when adding new buildings or services to the utility. This study analyzes existing/additional loads and load types (mechanical, lighting, receptacles). As part of this study, electrical engineers perform load calculations for all new loads added to the utility.
But why?
In short, these studies ensure the utility can sustain the latest electrical services. Moreover, the results ensure that utility feeders are sized and protected appropriately to enable the new service.
2. Adding new electrical services to An Existing Electrical Distribution
Installing new services in an existing electrical distribution requires an electrical engineering study.
Studying the distribution system helps determine if its appropriately sized and protected to handle the additional load. As a result, the study defines the proper NEC-compliant components to add to existing distribution equipment and protection settings per the NEC.
3. Changes to existing equipment in the electrical system
Installation and maintenance of electrical systems must follow the National Fire Protection Agency (NFPA) National Electrical Codes and NFPA Article 70E standards. As soon as the service starts, protection settings synchronize with the connected loads.
Most suggest waiting to Make electrical system changes until after an electrical engineering review of:
- An overview of existing system components
- The electrical components changing
Businesses must review and update the changes every five years for electrical equipment labels to accurately reflect the proper PPE requirements for flash hazards and fault settings. Performing an electrical engineering study prior to beginning any electrical changes will prevent oversight and issues they may create. Having a professional plan outlining the desired changes and the steps to get from A to B is the most effective solution.
Why APT?
Completing accurate studies requires a great deal of data. APT and our partners have extensive experience that extends beyond conducting studies. At APT, we handle the entire process. We will also verify all the necessary information from the site and create an accurate one-line drawing of your system. Above all, APT’s expert engineering staff will ensure your electrical system operates at best. Don’t bear the load on your own. So, let us be there to support you. It’s what we do best.
Brian Curnutt, APT Field Service Manager