NFPA 70E: Arc Flash / Shock


Arc Flash and Shock Hazard Risk Assessment Services

Is your Electrical Safety Program and Arc Flash Panel Labeling up to date with the latest changes contained within the 2018 edition of NFPA 70E.

To view a webinar on some of these major changes click the links below or contact us to find out how we can help!

NFPA 70E 2018 Updates Webinar on 12/07/2017 (Download/View by clicking the links below)

CLICK HERE to receive a 2018 NFPA 70E Arc Flash and Shock Hazards Reference Chart

NFPA 70E 2018 Arc Flash & Shock Hazards Chart

Below is a summary of the services we provide as part of an Arc Flash Incident Energy Analysis.  Please contact us today to find out more!

Phase 1 – Data Collection

On-site data collection performed to document the electrical data necessary to prepare an arc-flash hazard analysis of your facility. Data will be collected on the electrical system from the electric utility service entrance point down to the end-use location.

The collection process will include recording nameplate and setting information from circuit breakers, fuses, relays (over-current and ground-fault), switchboards, and transformers; feeder conductor sizes and lengths, motor sizes, etc.

To accomplish this it will be necessary to remove panel covers and open enclosures exposing energized components and conductors. No worries our personnel have the training and required PPE to do the job safely.

In most cases data collection can be accomplished without disruption to facility operations. However, in the unusual circumstance where the data cannot be collected due to safety concerns or without disrupting the operation of the facility, the facility may elect to collect that data at a later time of their choosing. During the data collection process, Sotaris Representative(s) will in the course of opening panels and removing covers, report any electrical concerns observed to the Facility Representative. (Examples include improper over-current protection, grounding concerns, broken latches, broken disconnects and similar concerns.)

Phase 2 – Incident Energy Analysis

Data collected from Phase I and/or data provided by the facility will be used to complete the Incident Energy Analysis, which can include a short-circuit analysis, protective device coordination analysis, and the arc-flash hazard analysis. Once completed the facility will receive a report detailing the following:

    • Available short-circuit current at each point evaluated.
    • Recommendations where facility equipment does not have adequate interrupting ratings. Devices without the proper rating pose a serious safety and fire risk to personnel and equipment.
    • Recommendations where over-current devices should be replaced or settings changed to provide proper coordination. Implementing the recommendations will improve safety by limiting exposure during troubleshooting to the least amount of equipment and will improve operational efficiencies by limiting the amount of equipment effected by an over-current trip.
    • Arc-flash hazard at each panel, MCC, disconnect, switchgear, etc. evaluated; including arc-flash boundaries, incident energy (cal/cm2), and PPE required
    • Recommendations of practical changes that can be implemented to reduce the arc-flash boundary and hazard risk level. Often times the hazard risk can be greatly reduced or eliminated completely by implementing recommended changes.
    • A single-line electrical drawing will also be provided on that portion of the electrical system which was analyzed.

Sample Electrical Single Line Drawing

Phase 3 – Report, Labeling, and Development of Electrical Safety Programs

The results from Incident Energy Analysis will be documented and provided to the facility in a report format. Arc Flash labels will be printed for all electrical equipment evaluated. The arc flash labels include all required information including the Shock Hazard Boundaries (Limited and Restricted) as well as the panel identification and upstream trip device information.

If you prefer Sotaris to take responsibility for affixing the Arc Flash Labels to the appropriate equipment to ensure the labels get placed on the proper panels, we also provide that service! Additionally we also provide labeling and larger signage for the Bus Ducts so the information can be seen when standing on the plant floor.  We can also develop an Electrical Safety Program and assist with the selection of appropriate personal protective equipment (clothing, gloves, and tools).

Sample Arc Flash Label

Phase 4 – Electrical Safe Work Practices Training

The Electrical Safe Work Practices Program is designed for all personnel who work on or near any type of exposed energized equipment. Electrical Hazards, proper electrical work practices and procedures, and the safe installation of electrical equipment will be discussed. You will be introduced to the rules and regulations as required by the OSHA Electrical Safety Related Work Practices standard 1910.331-1910.335. You will also learn how the NFPA 70E requirements work in conjunction with the OSHA requirements. This program is designed in-part to meet the NFPA 70E and OSHA training requirements for “qualified persons”.

Arc Flash Service Agreement:

Does your facility move equipment, or plan to upgrade or expand the electrical system? If so, these changes may affect the arc flash hazards in your facility. Sotaris offers a Service Agreement to keep your facility in compliance with OSHA and NFPA’s arc-flash assessment requirements. This Service Agreement provides annual update to your facility’s original Arc Flash Hazard Analysis.



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