For many Plant Managers especially at older. document challenged facilities, maintaining accurate single-line electrical drawings is often not a top ten priority!
Maintaining the latest one-line diagrams and updating them periodically is recommended by NFPA 70E-2015, Art. 205.2 to identify potential sources of electric energy during LOTO procedure, and it helps to ensure the safe, reliable operation of the facility.
Our one-line diagram development services involve:
- Point-to-point sketch of actual connected plant loads, beginning at the PCC, and collection of all pertinent component data.
- Based on the collected information, single-line diagrams are re-created to show the current configuration and modes of operation of the system.
- SKM PTW or ETAP EE software is used for creating single-line diagrams and modeling the components.