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Arc Flash Risk Assessments Services
Lewellyn Technology Field Technicians will visit your facility to collect the necessary electrical data to perform an Arc Flash Hazard Analysis. Electrical information will be gathered and the systems analyzed from the utility connection point to the equipment in the plant. We will be looking for enclosures that present potential exposures to an Arc Flash. We will gather wire size, wire length, transformer data, circuit over-current protection information, among other data. We will gather data on all equipment necessary per IEEE 1584. We will not stop at an arbitrary or convenient point on your system.
Single-Line Model
Data collected by our Field Technicians during Phase I and/or provided by the facility will be used to build a computer model of your facility’s electrical distribution system. The model will be sent to the facility immediately. This model will be used to complete the Engineering Analyses, which includes a Short Circuit Analysis, Protective Device Coordination Analysis, Protective Device Interrupt Rating Analysis, and the Incident Energy Analysis, once the utility data is received.
Engineering Analysis
The results from Phase II will be documented and provided to the facility in a report format. The report will include a binder as well as a CD-ROM containing electronic files of the report. We will also retain copies of the report and data. A presentation meeting will be held with our representative and key people from the facility to go over the report and discuss recommendations. A Lewellyn Technology Field Technician will apply labels.
Mitigation Recommendations
The report will present findings describing dangerous or disruptive conditions within the facility. The calculated arc flash hazards are compared to the criteria in NFPA Standard 70E, and hazards requiring personal protection equipment (PPE) are reported. The report will include recommendations for mitigating hazards 4 cal/cm² and above.
Field Labelling
Labels will be printed based on the data calculated. The labels will indicate the Arc Flash Boundary, Incident Energy, Flash Hazard Category, Voltage, Limited Approach Distance, Restricted Approach Distance, and the Prohibited Approach Distance. The label will indicate the device name and the over current protection device that clears the arcing fault current. This is no indicator of all devices of various voltages that might be feeding an enclosure. We list the device with the greatest impact on arc and shock hazard. This label is not a substitute for proper Lockout Tagout labeling which would indicate all power sources feeding an enclosure. A Lewellyn Technology Field Technician will apply labels.