Arc Flash Evaluation Studies
PTW Arc Flash Evaluation calculates
the incident energy and arc flash boundary for each
location in a power system. Arc Flash saves time by automatically
determining trip times
from the protective device settings and arcing fault current values.
Incident energy and
arc flash boundaries are calculated following the NFPA 70E, IEEE 1584
and NESC standards.
Clothing requirements are specified from a user-defined clothing
library. Clearing times
can be automatically reduced based on current-limiting capabilities.
- 1. Design safer power systems while applying
the NEC 110.16, OSHA, NFPA 70E, IEEE 1584 and NESC standards or
- 2. Save time with the fully integrated Short
Circuit, Over-Current Coordination, Equipment Evaluation and Arc Flash
Evaluation modules working together with
libraries of clothing levels, protective devices and bus ratings.
- 3. Provide a safer working environment by
specifying the proper level of clothing. Wearing inadequate clothing is
dangerous for obvious reasons, but wearing too
much clothing is dangerous due to limited mobility and visibility.
- 4. Evaluate alternatives quickly and easily to
establish an optimal design.
- 5. Improve safety margins with user-definable
arcing fault tolerances.
- 6. Save time by automatically generating arc
flash labels and work permits.
- 7. Avoid potential fines, lost productivity,
and increased insurance and litigation costs.
- Simple to use tabular interface for system
design, PPE selection, and reviewing
- Summary and detail view enables complete bus by
bus examination of study data.
- Pre-populated library of protective clothing
allows user-defined PPE additions.
- Bus and branch arcing fault values are
automatically calculated and trip times are automatically determined
from the protective device settings.
- Arc Flash labels are automatically produced to
comply with NEC 110.16 labeling
requirements and can be printed to several standard size label sheets.
- Create custom labels in any size with
user-defined logos, text, comments, field
placement, and local language support.
- Report selected bus locations using custom
queries or go-to function.
- Full featured reporting including bus report,
line-side report, and load-side report.
- Option to follow the NFPA 70E, IEEE 1584 or
- Option to perform DC Arc Flash analsys. (DC
Systems study module required)
- Option to report in English or Metric units.
- Fuses and breakers may be modeled as current
limiting devices with user-defined equations.
- Allows representation of differential,
zone-interlocking, photo-sensing, and other special instantaneous
- Induction motors can be included; excluded; or
included for a user-defined time.
- Automatically accumulates energy from parallel
contributions that clear at different times.
- Compare results from multiple project scenarios
in a single table.
- Option to check upstream protective devices for