Arc Flash Final Report 2022.pdf

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VA Medical Center Danville

Short Circuit, Coordination, and Arc Flash Analysis Report

Job Number: 847964 Date: November, 2022 Engineer: Akkele Brown Email: akkele.brown@qualuscorp.com

Prepared For:

VA Medical Center Danville 1900 E Main St Danville, IL 61832

REVISION PREPARED BY REVIEWED BY DATE

0 AKKELE BROWN ALEXEY MUZYCHENKO 11/2022

Job# 847964 Revision 0 Page 2 of 51

Table of Contents

1 EXECUTIVE SUMMARY

General

Revision History

Report Overview

1.3.1 Section 1.4: Key Findings and Recommendations

1.3.2 Section 2: Study Data and Procedures

1.3.3 Section 3: Short Circuit Analysis and Equipment Evaluation

1.3.4 Section 4: Overcurrent Protective Device Coordination and Protection Analysis

1.3.5 Section 5: Arc Flash Incident Energy Analysis

1.3.6 Appendices

1.3.7 One-Line Drawings

Key Findings and Recommendations

1.4.1 Short Circuit Analysis & Equipment Evaluation Results & Recommendations

1.4.2 Overcurrent Protective Device Coordination and Protection Results & Recommendations

1.4.3 Arc Flash Incident Energy Analysis Results & Recommendations

1.4.4 NFPA 70E Compliance Results & Recommendations

1.4.5 NEC Compliance Results and Recommendations

Analysis Recommendation Tables

2 STUDY DATA AND PROCEDURES

Utility Information

Service Transformer Information

Scenarios for Arc Flash Analysis

Modeling Procedures, Assumptions, and Estimations

3 SHORT CIRCUIT ANALYSIS AND EQUIPMENT EVALUATION

General Procedure

3.1.1 Short Circuit Analysis

3.1.2 Equipment Evaluation

Results and Recommendations

Equipment Evaluation Tables

4 OVERCURRENT PROTECTIVE DEVICE COORDINATION AND PROTECTION ANALYSIS

General Procedure

4.1.1 Coordination

4.1.2 Protection and Equipment Characteristics

Results and Recommendations

Job# 847964 Revision 0 Page 3 of 51

Time-Current Curves

5 ARC FLASH INCIDENT ENERGY ANALYSIS

General Procedure

5.1.1 Arc Flash Definition

5.1.2 Bolted Faults vs. Arcing Faults

5.1.3 Personal Protective Equipment (PPE) Requirements

5.1.4 Approach Boundaries

5.1.5 Analysis Method

Arc Flash Labeling

Recommendations and Engineering Controls

5.3.1 Recommendations

5.3.2 Engineering Controls

Results - Arc Flash Incident Energy Analysis Tables

Appendix A – Protective Device Settings

Appendix B – Input/Output Report

Appendix C – Reference Data

Appendix D – Software Settings

Appendix E – System Impedance Diagrams

Job# 847964 Revision 0 Page 4 of 51

1 EXECUTIVE SUMMARY

General

The scope of this analysis includes a short circuit, overcurrent protective device coordination, and arc flash incident energy analysis for the electrical distribution system for the VA Medical Center located in Danville, IL.

This was an updated to the previous report completed in 2017, which included the equipment on the drawings found in Annex C.

This summary provides a high level review of the results found from these analyses. The results of this report are highly dependent upon the accuracy of the data used to perform the analysis. All data used in the development of this report was acquired by Qualus from onsite data collection and verification, published engineering drawings or records, test reports, equipment submittals, or other means. Should system conditions differ from those documented in this report, or should the electrical equipment within the scope of this analysis not be properly installed and maintained, the results of this analysis may be invalid. Qualus assumes no responsibility for inaccuracies in data provided by third parties. NFPA 70E requires that the results of the incident energy analysis be reviewed for accuracy whenever system changes occur or at intervals not to exceed five years. System changes that require an immediate update to the analysis can include a change in utility fault current, service changes or upgrades, the addition of local generation, protective device settings changes, or the addition, removal, or relocation of electrical equipment.

SKM was used to perform the analysis detailed in this report. The results of the analysis are based upon the latest versions of the following standards, recommended practices, and guides:

ANSI NFPA IEEE OSHA

ANSI C37 NFPA 70 (NEC) IEEE 141 OSHA 1910.333

ANSI C57 NFPA 70E IEEE 242

NFPA 70B IEEE 399

IEEE 551

IEEE 1015

IEEE 1584

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Revision History

This section will document revision history after the initial study has been submitted. Subsequent revision numbers are each listed on the front cover of the report and are explained below by indicating the following details: date of issue, revision engineer, and scope of revision request. When necessary, engineer’s comments and/or pertinent emails will be referred to in the references section of this report.

Revision 0 October/2022: Initial submission of report.

Job# 847964 Revision 0 Page 6 of 51

Report Overview

1.3.1 Section 1.4: Key Findings and Recommendations

Key issues found from the results of these analyses are listed and described in Section 1.4 and may consist of over-dutied equipment, mis-coordinated devices, NEC violations, high incident energy locations, and other electrical system deficiencies. Where applicable, recommendations have been made to reduce or eliminate the issue. These recommendations can be found in the tables provided in Section 1.4.

1.3.2 Section 2: Study Data and Procedures

Methods for acquiring utility data, equipment information, breaker settings, and other pertinent information for the analysis are documented in Section 2. In some instances, data may not be available due to inaccessibility for safety reasons, equipment deterioration, or operational limitations. When these circumstances arise, estimations are made based upon common industry practices and design standards including the NEC and ANSI/IEEE. Worker safety was prioritized when an estimate was made.

1.3.3 Section 3: Short Circuit Analysis and Equipment Evaluation

This Section documents the procedures and methodology used to perform the short circuit and equipment evaluation studies. Complete evaluation tables for all equipment within the scope of this project can be found here.

1.3.4 Section 4: Overcurrent Protective Device Coordination and Protection Analysis

This section documents the procedures and methodology used to perform the overcurrent protective device coordination and protection studies. Time Current Curves (TCCs) for the electrical system within the scope of this project can be found here.

1.3.5 Section 5: Arc Flash Incident Energy Analysis

This section documents the procedures and methodology used to perform the arc flash incident energy analysis. Complete arc flash tables and values for the electrical system within the scope of this project can be found here. Additionally, information on the arc flash label format is included in this section.

1.3.6 Appendices

The appendices document the information used in this project to generate the results found in the short circuit, coordination, and arc flash analysis. The information contained here includes device settings, software input and output data and setup options, utility data, facility drawings, equipment submittals, or other relevant information that may significantly impact the results of the analysis.

1.3.7 One-Line Drawings

One-line drawings can be found in Appendix E.

Job# 847964 Revision 0 Page 7 of 51

Key Findings and Recommendations

1.4.1 Short Circuit Analysis & Equipment Evaluation Results & Recommendations

Maximum short circuit currents were calculated at every location within the scope of the analysis.

These results were then compared to the withstand or interrupting rating for the equipment. Upon review, 117 locations failed the equipment evaluation. For a complete list of failed equipment and mitigation recommendations, see Section 1.5. Full system equipment evaluation tables can be found in Section 3.

Due to the system complexity, multiple switching scenarios were considered for the arc flash analysis. The short circuit equipment evaluations are based upon the switching scenario and/or utility configuration that produces the highest available fault current as found in scenario 1. For a full description of every switching scenario considered for this analysis, see Section 2.3.

1.4.2 Overcurrent Protective Device Coordination and Protection Results & Recommendations

The protective device coordination study evaluates coordination and protection of equipment in accordance with IEEE Standards 141, 242, and 3004. Proper coordination of protective devices increases safety of operations and minimizes nuisance trips and interruptions. Where coordination or protection is not achieved in accordance with these IEEE or NEC standards, commentary has been provided in Section 1.5. For a full discussion of protection and coordination, as well as Time-Current- Curves (TCCs) for the facility, can be found in Section 4.

Protective device information and settings used for this analysis can be found in Appendix A. The results of the coordination and arc flash analysis are based upon these settings. Should any protective device settings be changed from the settings documented here, the results of this analysis are invalid and personnel could be at an increased safety risk. Qualus recommends updating this report whenever settings are modified in the field.

In some instances, coordination or protection concerns were identified. Recommended settings have been provided in Section 1.5 that will reduce or eliminate the concern. If these recommendations are implemented, Qualus recommends updating this report, as settings changes could impact the results of the arc flash analysis.

1.4.3 Arc Flash Incident Energy Analysis Results & Recommendations

The arc flash incident energy analysis calculates the available incident energy, arc flash boundary, and working distance for the equipment in this report. Calculations are performed in accordance with IEEE 1584 “Guide for Performing Arc-Flash Hazard Calculations” and NFPA 70E “Standard for Electrical Safety in The Workplace”. The complete analysis results and recommendations are presented in Section 5.

After evaluating all possible switching scenarios and utility fault currents, the following results were found:

Number of Locations > 40 cal/cm2: 8

Number of Locations > 8 cal/cm2 and < 40 cal/cm2: 101

Locations over >40 cal/cm2 are listed in Section 1.5 and recommendations for reducing the hazard have been provided. In some instances, it may not be practical to reduce the incident energy due to equipment construction. Frequently, service entrance equipment is difficult to mitigate due to the lack of ownership of the supply side protective device. For complete results, see the arc flash evaluation tables in Section 5.

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NFPA 70E requires that this analysis be updated at periods not to exceed five years, or whenever system changes are made that could impact the results of the study. Changes that could impact the results of the study can include a change in utility fault current, service changes or upgrades, the addition of local generation, protective device settings changes, or the addition, removal, or relocation of electrical equipment.

1.4.4 NFPA 70E Compliance Results & Recommendations

Arc Flash Training - Proper training of personnel to identify, mitigate, and work safely around arc flash hazards is required by NFPA 70E. A workplace is not in compliance with NFPA 70E arc flash safety standards unless arc flash safety training has been provided to all appropriate parties.

Facility Maintenance – The arc flash calculations in this report are only valid for a system in which the equipment is properly maintained in compliance with NFPA 70E. NFPA 70E requires electrical equipment be maintained by qualified persons and documented. NEC Article 700.3(C) requires emergency equipment be tested periodically and maintained in accordance with manufacturer and instructions and industry standards.

Facility Single-line - NFPA 70E requires that single-line diagrams for an electrical system be provided, maintained in a legible condition, and kept current.

Facility Electrical Safety Plan - The information presented in this report and covered during arc flash safety training must be integrated into the site electrical safety plan. A complete site electrical safety plan, including arc flash hazard analysis, is required for compliance with OSHA workplace electrical safety standards.

1.4.5 NEC Compliance Results and Recommendations

During the course of reviewing the data used for the analysis, 42 NEC violations were identified. A complete table with descriptions of the violations, and recommendations for how to comply with the most recent version of the NEC is provided in Section 1.5. The scope of this analysis does not include a complete NEC compliance audit of the facility.

Job# 847964 Revision 0 Page 9 of 51

Analysis Recommendation Tables

Table 1.5.1

Failed Equipment - Buses

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

101/EMCCA LV MCC 480 15.70 (*N1) 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

101/EMDPCE LV Panelboard 480 14.18 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

102/EMA2 LV Panelboard 480 17.79 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

102/PA LV Panelboard 480 18.49 (*N1) 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

102/PB LV Panelboard 480 14.43 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/EE LV Panelboard 480 15.00 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE LV Panelboard 480 17.76 (*N1) 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/CDH1A LV Panelboard 480 24.10 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N2) Dev Isc kA modified based on Max Rating Voltage and K Factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.1 - 1

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

104/MSB LV Switchboard 480 29.55 25.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/P2 LV Panelboard 480 23.32 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/P2A LV Panelboard 480 22.77 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PEM LV Panelboard 480 22.34 18.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PL-1 LV Panelboard 480 22.58 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PL-5 LV Panelboard 480 15.26 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

125/A LV Panelboard 208 16.95 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

125/ATS L ATS 208 10.43 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.1 - 2

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

125/B LV Panelboard 208 16.95 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

133/NB LV Panelboard 208 12.78 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/C LV Panelboard 208 11.74 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/EM LV Panelboard 208 10.70 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/MDP LV Switchboard 208 22.24 22.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

22/MDP-1 LV Panelboard 208 11.09 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

22/MDP-2 LV Panelboard 208 10.71 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

48/A LV Panelboard 208 18.40 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.1 - 3

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

48/B LV Panelboard 208 18.40 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/1A LV Panelboard 480 15.27 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CE-DP LV Panelboard 480 21.93 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CE-DP-2 LV Panelboard 480 21.02 18.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CP-DP LV Panelboard 480 21.19 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/DP1 LV Panelboard 480 19.80 18.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/LS-DP LV Panelboard 480 21.76 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

93/MDP LV Panelboard 208 10.20 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.1 - 4

Table 1.5.2

Failed Equipment - Branch Devices

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

125/A BKR Breaker 208 16.68 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

125/B BKR Breaker 208 16.68 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/C BKR Breaker 208 11.73 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/EM-14-EM1 BKR Breaker 208 10.54 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/EM-14/EL2 BKR Breaker 208 10.54 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/MDP-14/B BKR Breaker 208 22.03 22.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/MDP-14/D BKR Breaker 208 22.22 22.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

14/MDP-14/F BKR Breaker 208 22.22 22.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 1

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

22/MDP1-22/D BKR Breaker 208 11.06 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

22/MDP1-69/B BKR Breaker 208 11.06 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

22/MDP2-22/E BKR Breaker 208 10.68 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

48/A BKR Breaker 208 18.34 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

48/B BKR Breaker 208 18.34 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

93/MDP-93/LP BKR Breaker 208 10.17 (*N1) 10.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

101/EMCCA-101/ES BKR Breaker 480 15.22 14.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

101/EMDPCE-101/EACE BKR Breaker 480 14.02 14.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 2

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

101/EMDPCE-101/EBCE BKR Breaker 480 14.02 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

101/EMDPCE-101/ECCE BKR Breaker 480 14.02 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

101/EMDPCE-101/EDCE BKR Breaker 480 14.02 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

102/PA-102/J5 BKR Breaker 480 17.79 (*N1) 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

102/PA-102/PAA BKR Breaker 480 17.79 (*N1) 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

102/PB-102/J6 Breaker 480 14.15 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

102/PB-102/J7 BKR Breaker 480 14.15 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

102/PB-102/SK1 BKR Breaker 480 14.15 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 3

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

103/E BKR Breaker 480 16.63 14.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/EE-103/EMCCE BKR Breaker 480 14.87 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/EE-103/EMCLS BKR Breaker 480 14.87 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/EE-103/EMDCE BKR Breaker 480 14.87 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/EE-103/EMDLS BKR Breaker 480 14.87 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/EE-103/EMECE Breaker 480 14.87 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE-103/C1 BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE-103/C2 BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 4

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

103/PE-103/D5 BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE-103/D6 BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE-103/E BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE-103/E1 BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE-103/E4 BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE-103/F1 BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

103/PE-103/MSR BKR Breaker 480 17.34 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

104 BKR 4A 104/PL-3 Breaker 480 29.35 25.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 5

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

104 BKR 4B 104/PL-4 Breaker 480 29.46 25.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

104 BKR 4C 104/PL-5 Breaker 480 29.46 25.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

104 BKR 4D 104/ATS Breaker 480 28.62 25.00

Study recommends upgrading equipment to a rating (or series rating) of

22 kA or higher. Contact the study engineer for more information on cost effective solutions.

104 BKR 5A 104/MCC1 Breaker 480 29.30 25.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

104 BKR 5B 104/P2 Breaker 480 29.05 25.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

104 BKR 5C 104/PL-2 Breaker 480 29.20 25.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

104 BKR 5D 104/CHILLER Breaker 480 28.64 25.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/P2-104/PL-1 BKR Breaker 480 23.29 18.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 6

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

104/P2A BKR Breaker 480 22.74 14.00

Study recommends upgrading equipment to a rating (or series rating) of

35 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PEM MAIN BKR Breaker 480 21.96 18.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PEM-104/104/MCC4 BKR Breaker 480 21.96 18.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PEM-104/C BKR Breaker 480 22.31 18.00

Study recommends upgrading equipment to a rating (or series rating) of

18 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PEM-104/PEMA BKR Breaker 480 22.31 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PL-1 BKR Breaker 480 22.55 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

104/PL-5-104/PL-6 BKR Breaker 480 15.24 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/1A-58/1CA BKR Breaker 480 15.03 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 7

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

58/CEDP-58/BP BKR Breaker 480 21.44 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CEDP-58/E2CE BKR Breaker 480 21.52 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CEDP-58/E3CE BKR Breaker 480 21.52 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CEDP-58/E4CE BKR Breaker 480 21.52 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CEDP-58/E5CE BKR Breaker 480 21.52 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CEDP-58/GRP BKR Breaker 480 21.52 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CPDP-58/58/E2CP BKR Breaker 480 20.82 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CPDP-58/58/E3CP BKR Breaker 480 20.82 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 8

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

58/CPDP-58/58/E5CP BKR Breaker 480 20.82 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/CPDP-58/EP BKR Breaker 480 20.82 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/DP1-58/1A BKR Breaker 480 19.42 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/DP1-58/1CC BKR Breaker 480 19.42 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/DP1-58/2C BKR Breaker 480 19.42 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/DP1-58/3A BKR Breaker 480 19.42 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/DP1-58/4A BKR Breaker 480 19.42 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/DP1-58/5A BKR Breaker 480 19.42 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 9

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

58/DP1-58/BA BKR Breaker 480 19.42 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/DP1-58/FELEV BKR Breaker 480 19.22 18.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/LSDP-58/E1LS BKR Breaker 480 21.38 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/LSDP-58/E2LS BKR Breaker 480 21.38 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/LSDP-58/EA BKR Breaker 480 21.38 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/LSDP-58/EBS BKR Breaker 480 21.38 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/LSDP-58/EE BKR Breaker 480 21.38 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

58/LSDP-58/EH BKR Breaker 480 21.38 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 10

Equipment Designation Type Voltage Available Short

Circuit Current

Device Short

Circuit Rating Recommendation

58/LSDP-58/ES BKR Breaker 480 21.38 14.00

Study recommends upgrading equipment to a rating (or series rating) of

25 kA or higher. Contact the study engineer for more information on cost effective solutions.

98 BKR - ATS-1 [TS-S] Breaker 480 36.87 (*N1) 0.00/30.00

Study recommends upgrading equipment to a rating (or series rating) of

42 kA or higher. Contact the study engineer for more information on cost effective solutions.

98 BKR 2C TRANE #1 Breaker 480 33.82 (*N1) 0.00/30.00

Study recommends upgrading equipment to a rating (or series rating) of

42 kA or higher. Contact the study engineer for more information on cost effective solutions.

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*N3) Arc Flash Line/Load Side Evaluation IE > 40 cal/cm^2. Table 1.5.2 - 11

Refer to SID Drawings (Red NEC tags denote a violation) Table 1.5.3

NEC Recommendations

Equipment Designation Concern Recommendation

(BLDG 14)

CBL-0406

CBL-0411

CBL-0412

NEC 240.4: Conductor not protected

Decrease the LTPU of the breaker feeding this conductor to less than the conductor rating per the tables in NEC 310. This could require breaker/fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

(BLDG 14)

CBL-0308

CBL-0309

NEC 240.4: Conductor not protected

Decrease the LTPU of the breaker feeding this conductor to less than the conductor rating per the tables in NEC 310. This could require breaker/fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

(BLDG 60)

CBL-0331

CBL-0332

CBL-0333

NEC 240.4: Conductor not protected

Decrease the LTPU of the breaker feeding this conductor to less than the conductor rating per the tables in NEC 310. This could require breaker/fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

(BLDG 93)

CBL-0351

(BLDG 125)

CBL-0370

NEC 240.21C: Transformer secondary conductors cannot round up to the next standard size

Decrease the LTPU of the transformer secondary protection to less than the conductor rating per the tables in NEC 310. This could require breaker/ fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

BLDG (100)

CBL-0365

CBL-0369

NEC 240.21C: Transformer secondary conductors cannot round up to the next standard size

Install an overcurrent protective device no larger than 100A to protect this equipment, at the system voltage of the panel, on loadside of the panel.

100/GRP

100/B

NEC 408.36: Panelboard not protected at the secondary of a transformer

Install an overcurrent protective device to protect this equipment, at the system voltage of the panel.

100 T/GRP

NEC 450.3: LV Transformer not protected - Table 450.3B

(Primary within 125% FLA)

OR

(Primary within 250% FLA and secondary within 125% FLA)

Decrease the LTPU of the transformer primary/ secondary protection within the limits of Table 450.3B. This could require breaker/fuse replacement, or turning the long time dial down.

Table 1.5.3 - 1

NEC Recommendations

Equipment Designation Concern Recommendation

BLDG (58)

CBL-1082

NEC 240.21C: Transformer secondary conductors cannot round up to the next standard size

Decrease the LTPU of the transformer secondary protection to less than the conductor rating per the tables in NEC 310. This could require breaker/ fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

BLDG (58)

CBL-1092

CBL-1193

NEC 240.4: Conductor not protected

Decrease the LTPU of the breaker feeding this conductor to less than the conductor rating per the tables in NEC 310. This could require breaker/fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

BLDG (58)

CBL-1184

CBL-1299

CBL-1311

NEC 240.21C: Transformer secondary conductors cannot round up to the next standard size

Install an overcurrent protective device to protect this equipment, at the cable ampacity and system voltage of the panels, on loadside of the panel.

58/5C

58/EM

58/ET

58/ED

58/2D-1

NEC 408.36: Panelboard not protected at the secondary of a transformer

Install an overcurrent protective device to protect this equipment, at the system voltage of the panel.

58 T/113B

NEC 450.3: LV Transformer not protected - Table 450.3B

(Primary within 125% FLA)

OR

(Primary within 250% FLA and secondary within 125% FLA)

Decrease the LTPU of the transformer primary/ secondary protection within the limits of Table 450.3B. This could require breaker/fuse replacement, or turning the long time dial down.

58 T/5C

58 T/EM

NEC 450.3: LV Transformer not protected - Table 450.3B

(Primary within 125% FLA)

OR

(Primary within 250% FLA and secondary within 125% FLA)

Decrease the LTPU of the transformer primary/ secondary protection within the limits of Table 450.3B. This could require breaker/fuse replacement, or turning the long time dial down.

BLDG (98)

CBL-0996

CBL-1026

NEC 240.4: Conductor not protected

Decrease the LTPU of the breaker feeding this conductor to less than the conductor rating per the tables in NEC 310. This could require breaker/fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

Table 1.5.3 - 2

NEC Recommendations

Equipment Designation Concern Recommendation

BLDG (102)

CBL-0434

NEC 240.4: Conductor not protected

Decrease the LTPU of the breaker feeding this conductor to less than the conductor rating per the tables in NEC 310. This could require breaker/fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

102/EM1

NEC 408.36: Panelboard not protected at the secondary of a transformer

Install an overcurrent protective device to protect this equipment, at the system voltage of the panel.

103/GP

103/F2

103/F3

103/C1

NEC 408.36: Panelboard not protected at the secondary of a transformer

Install an overcurrent protective device to protect this equipment, at the system voltage of the panel.

BLDG (103)

CBL-0611

CBL-0674

CBL-0751

CBL-0678

NEC 240.4: Conductor not protected Install an overcurrent protective device to protect this equipment, at the system voltage of the panel.

BLDG (103)

CBL-0658

CBL-0662

NEC 240.21C: Transformer secondary conductors must terminate in an overcurrent protective device within 25 feet of the transformer

Verify the conductor length, and if still applicable, install an overcurrent protective device within 25 feet of the transformer

104/L3A

104/L3B

104/C

NEC 408.36: Panelboard not protected at the secondary of a transformer

Install an overcurrent protective device to protect this equipment, at the system voltage of the panel.

BLDG (104)

CBL-0891

CBL-0892

NEC 240.4: Conductor not protected Install an overcurrent protective device to protect this equipment, at the system voltage of the panel.

BLDG (104)

CBL-0290

CBL-0899

CBL-0946

NEC 240.4: Conductor not protected

Decrease the LTPU of the breaker feeding this conductor to less than the conductor rating per the tables in NEC 310. This could require breaker/fuse replacement, or turning the long time dial down.

OR

Install a larger conductor.

BLDG (104)

CBL-0901

CBL-0902

NEC 240.21C: Transformer secondary conductors must terminate in an overcurrent protective device within 25 feet of the transformer

Verify the conductor length, and if still applicable, install an overcurrent protective device within 25 feet of the transformer

Table 1.5.3 - 3

Refer to Section 4 TCCs

Table 1.5.4

Coordination Recommendations

TCC Name Equipment/

Breaker Designation Concern Recommendation

Similar Equipment

Concerns, not shown on a TCC

TCC_0001_SWGR 99 RLY-TIE

Coordination - overlap above 0.1 seconds, Tie relay overlaps with downstream feeders. This could cause a loss of power on Bus 2 in the case of an event on those feeders

No action - noted for informational purposes only. Changing settings would result in miscoordination with Main Relay.

TCC_0005_101/MSB RLY-F6

Coordination - overlap above 0.1 seconds with downstream protective device.

No action - noted for informational purposes only. Changing settings would result in miscoordination with Main Relay, and or led to CT saturation.

TCC_0008_101/A1-T1

101/A1 MAIN BKR

101/A1 BKR

Coordination - overlap above 0.1 seconds

No action - noted for informational purposes only

To resolve this concern, the overcurrent protective device would have to be replaced

TCC_0009_101/A1-A

101/A1 MAIN BKR

101/A1-101/A1-A BKR

Coordination - overlap above 0.1 seconds

No action - noted for informational purposes only

To resolve this concern, the overcurrent protective device would have to be replaced

TCC_0012_101/B1-T2

101/B1 MAIN BKR

101/B1-101/B1-A BKR

Coordination - overlap above 0.1 seconds

No action - noted for informational purposes only

To resolve this concern, the overcurrent protective device would have to be replaced

Table 1.5.4 - 1

Coordination Recommendations

TCC Name Equipment/

Breaker Designation Concern Recommendation

Similar Equipment

Concerns, not shown on a TCC

TCC_0013_101/C1-T3

101/C1 MAIN BKR

101/C1-101/C1-A BKR

Coordination - overlap above 0.1 seconds

No action - noted for informational purposes only

To resolve this concern, the overcurrent protective device would have to be replaced

TCC_0015_101/MCC-ES1

101/ES-101/IT BKR

101/IT MAIN BKR

101/ES1 MAIN BKR

Coordination - overlap above 0.1 seconds

No action - noted for informational purposes only

To resolve this concern, the overcurrent protective device would have to be replaced

TCC_0018_101/F-CT

101/F-101/CT BKR

101/CT MAIN BKR

Coordination - overlap above 0.1 seconds

No action - noted for informational purposes only

To resolve this concern, the overcurrent protective device would have to be replaced

TCC_0020_101/GA-GB

101/GA-101/GB BKR

101/GB MAIN BKR

101/GB-101/OT BKR

Coordination - overlap above 0.1 seconds

No action - noted for informational purposes only

To resolve this concern, the overcurrent protective device would have to be replaced

TCC_0021_101/EMCCA [N]

101/EMCCA-101/EMDPCE-2

BKR

101/EMDPCE-2 MAIN BKR

Coordination - overlap above 0.1 seconds

No action - noted for informational purposes only

To resolve this concern, the overcurrent

Table 1.5.4 - 2

Coordination Recommendations

TCC Name Equipment/

Breaker Designation Concern Recommendation

Similar Equipment

Concerns, not shown on a TCC

TCC_0022_101/EMCCA [E] 104 BKR 2C 101/ATS

Coordination - overlap above 0.1 seconds

Recommended settings have been provided in

Table 1.5.6 that can eliminate or reduce this concern. TCCs showing this adjustment can be seen in Section 3.3.

TCC_0025_101/EMDP-EBLS [N] 101/EMDP MAIN BKR

Coordination - overlap above…