Arc Energy Reduction Performance
Updated 2026-10-24
| Relationship | Entry |
|---|---|
| Governing standard | IEEE 1584-2018 (IEEE Guide for Performing Arc-Flash Hazard Calculations) |
Data records
- Arc Energy Reduction Performance is specified for microprocessor-based protective relays in acceptance testing at clause 7.9.2.B.6 of ANSI/NETA ATS-2025. Value: microprocessor-based protective relays.
- Arc Energy Reduction Performance is addressed in ANSI/NETA ATS-2025.
- Clause 6.8 of IEEE 1584-2018 computes the total arcing current at a location from the total bolted fault current and assigns each upstream protective device its proportional share of that arcing current, which is the current at which that device's clearing time is read from its time-current curve.
- In IEEE 1584-2018 the clearing time of the protective device stands in for the arc duration, apart from the cases clause 6.9.1 describes, and clause 6.9.1 has the device's time-current curve read at both the arcing current and the reduced arcing current of clause 4.5, with the longer clearing time governing the incident energy.
- IEEE 1584-2018 prescribes no field test of arc energy reduction or of any protective device; its field content is the data collection of clause 6.2, which calls for the installed fuse types and ratings, trip unit settings and relay settings to be checked in the field against what the study assumed.
- An arc-flash study performed with IEEE 1584-2018 reports, for each location, the incident energy at the working distance and the arc-flash boundary, which clause 3.1 defines as the distance from the arc source at which the calculated incident energy falls to the threshold value stated in the definition.
- The test method is named Arc Energy Reduction Performance. Value: Arc Energy Reduction Performance.
Elsewhere in the family
- Zone Selective Interlocking related entry on Electrical Testing Reference
- Zone selective interlocking related entry on Protective Relay Reference
- Primary Current Injection Trip Test related entry on Circuit Breaker Reference
- Protective Relay Element Tests related entry on Protective Relay Reference
- Ground fault protection performance related entry on Circuit Breaker Reference
- Ground Fault Protection Performance related entry on Electrical Testing Reference
- Ground fault protection performance related entry on Protective Relay Reference
- Ground fault protection performance related entry on Switchgear Testing Reference
- Motor Overload Relay Trip related entry on Electrical Testing Reference
- Relay Time-Delay Timing Test related entry on Protective Relay Reference
- ANSI/NETA ATS-2025 Standard for Acceptance Testing Specifications related entry on Electrical Testing Reference
Sources
- ANSI/NETA ATS-2025, Acceptance Testing Specifications for Electrical Power Equipment and Systems, 2025 edition, NETA. Cited: clause 7.9.2.B.6. Held as: Purchased single-user copy. Publisher page
- Electrical Testing Reference editorial taxonomy, Electrical Testing Reference editorial taxonomy of test methods, 2026-10 edition, Electrical Testing Reference. Held as: Own observation.
- IEEE 1584-2018, Guide for Performing Arc-Flash Hazard Calculations, 2018 edition, IEEE. Cited: clause 6.8; clause 3.1, 6.9.1; clause 6.2; clause 3.1, 6.11. Held as: Purchased single-user copy.
Obtaining the documents
- ANSI/NETA ATS-2025: publisher catalog or sales page
- IEEE 1584-2018: publisher catalog or sales page
Changelog (14 entries)
| Date | Revision | Change |
|---|---|---|
| 2026-10-24 | created (tests.arc-energy-reduction-performance.ieee1584.arcing-current) | |
| 2026-10-24 | review_status unreviewed -> software_reviewed (tests.arc-energy-reduction-performance.ieee1584.arcing-current) | |
| 2026-10-24 | created (tests.arc-energy-reduction-performance.ieee1584.clearing-time) | |
| 2026-10-24 | revised (tests.arc-energy-reduction-performance.ieee1584.clearing-time) | |
| 2026-10-24 | review_status unreviewed -> software_reviewed (tests.arc-energy-reduction-performance.ieee1584.clearing-time) | |
| 2026-10-24 | created (tests.arc-energy-reduction-performance.ieee1584.no-field-test) | |
| 2026-10-24 | revised (tests.arc-energy-reduction-performance.ieee1584.no-field-test) | |
| 2026-10-24 | review_status unreviewed -> software_reviewed (tests.arc-energy-reduction-performance.ieee1584.no-field-test) | |
| 2026-10-24 | created (tests.arc-energy-reduction-performance.ieee1584.study-outputs) | |
| 2026-10-24 | revised (tests.arc-energy-reduction-performance.ieee1584.study-outputs) | |
| 2026-10-24 | review_status unreviewed -> software_reviewed (tests.arc-energy-reduction-performance.ieee1584.study-outputs) | |
| 2026-10-13 | created (tests.arc-energy-reduction-performance.equipment.relay.acceptance) | |
| 2026-10-13 | created (tests.arc-energy-reduction-performance.governed-by.ansi-neta-ats) | |
| 2026-10-13 | created (tests.arc-energy-reduction-performance.title) |
Cite this page
Cite the governing standard for the fact itself; cite this page as the finding aid.
"Arc Energy Reduction Performance." Arc Flash Reference. 2026-10-24. https://www.arcflashreference.com/tests/arc-energy-reduction-performance/.
Arc Flash Reference, Arc Energy Reduction Performance (Oct. 24, 2026), https://www.arcflashreference.com/tests/arc-energy-reduction-performance/.
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title = {Arc Energy Reduction Performance},
howpublished = {\url{https://www.arcflashreference.com/tests/arc-energy-reduction-performance/}},
organization = {Arc Flash Reference},
publisher = {Arc Flash Reference},
year = {2026},
note = {last substantive change 2026-10-24}
}{{cite web |title=Arc Energy Reduction Performance |website=Arc Flash Reference |publisher=Arc Flash Reference |url=https://www.arcflashreference.com/tests/arc-energy-reduction-performance/ |date=2026-10-24 |access-date=}}