The sensitivity and effect changes of other parameters have been discussed in the previous literatures. The parameters in the updated estimation models include electrode configuration, open circuit voltage, bolted fault current, arc duration, gap width, working distance, and enclosure dimension. 1584-2018 has added parameters for more accurate arc flash incident energy (IE), arcing current, and protection boundary estimation. D.57), the arcing current multiplied by the k3 coefficient is the full arcing current (Iarc_600, Iarc_2700, Iarc_14300) rather than the reduced arcing current (Iarc_600_min, Iarc_2700_min, Iarc_14300_min).= ,Īrc flash hazard prediction methods have become more sophisticated because the knowledge about arc flash phenomenon has advanced since the publication of IEEE Std. Having had a closer look at the equations in the standard, I strongly suspect that in the equations for E_600 (Eq. Arc Flash Boundary in the standard is 1704mm, whilst in the spreadsheet is 1712.51mm. Incident Energy in the standard is 13.343 J/cm^2, whilst in the spreadsheet is 13.44 J/cm^2. Unfortunately, this results in calculated Incident Energy and Arc Flash Boundary values which are higher than those given on pages 67 and 68. I have entered the data inputs given in Annex D.1 of IEEE Std 1584-2018 (using an arc duration of 223ms given on page 64, which corresponds to the reduced arcing current) into the spreadsheet named "IEEE ExcelCalculator_V 2.6.6_M_mm_08_29_2019.xlsm". IEEE AND ITS CONTRIBUTORS DISCLAIM ALL LIABILITY ARISING FROM YOUR USE OF THE SOFTWARE IN VIOLATION OF ANY APPLICABLE LAWS OR REGULATIONS. YOU ARE SOLELY RESPONSIBLE FOR COMPLYING WITH ALL APPLICABLE LAWS AND REGULATIONS, INCLUDING, BUT NOT LIMITED TO, ANY THAT GOVERN YOUR USE, EXPORTATION OR IMPORTATION OF THIS SOFTWARE. IN NO EVENT SHALL IEEE OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO: PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES LOSS OF USE, DATA, OR PROFITS OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE AND REGARDLESS OF WHETHER SUCH DAMAGE WAS FORESEEABLE. IN ADDITION, IEEE AND ITS CONTRIBUTORS DISCLAIM ANY AND ALL CONDITIONS RELATING TO: RESULTS WORKMANLIKE EFFORT AND LACK OF VIRUSES. THIS SOFTWARE IS PROVIDED "AS IS" AND "WITH ALL FAULTS." IEEE AND ITS CONTRIBUTORS EXPRESSLY DISCLAIM ALL WARRANTIES (EXPRESS, IMPLIED AND STATUTORY) RELATED TO THE SOFTWARE, INCLUDING, BUT NOT LIMITED TO, THE WARRANTIES OF: MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE NON-INFRINGEMENT AND QUALITY, ACCURACY, EFFECTIVENESS, CURRENCY, OR COMPLETENESS OF THE SOFTWARE. THIS CALCULATOR IS NOT A PART OF IEEE 1584-2018 AND WAS NOT DEVELOPED BY THE IEEE P1584 WORKING GROUP. The Calculator function within the spreadsheets provide quick access to data analysis that could increase the productivity for the user. When all variables inputs have been entered, and proper equipment configuration has been selected, the Calculator will solve the equations and the answer is returned. The excel spreadsheet files provide access to a functional Arc Flash Calculator that includes various equipment configurations (VCB, VCBB, HCB, VOA and HOA), Incident Energy and voltage ranges.Īs equipment’s configuration and input fields are presented, the user will be able to key entry specific data using the proper input fields and/or pull down menus provided.
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