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Arc Flash Calculator.html
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<!DOCTYPE html>
<!--
IEEE 1584-2018 BASED ARC FLASH CALCULATOR
TESTED WITH 144,000 TEST CASES FROM IEEE 1584-2018 OFFICIAL EXCEL SPREADSHEET
Jason Grimard
Version 1.0.2
MIT License
Copyright (c) [2023] [Jason Grimard]
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
-->
<html>
<head>
<title>Arc Flash Calculator</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style type="text/css">
.error {
color: red;
}
.container {
display: flex;
justify-content: center;
width: 100%;
height: auto;
}
.form {
display: flex;
flex-direction: column;
align-items: center;
padding: 20px;
border: 1px solid black;
border-radius: 5px;
}
div.inputs {
display:grid;
grid-template-columns: auto auto auto;
grid-gap: 3px;
align-items: center;
}
div.inputs label.prelabel {
text-align:right;
}
div.inputs label.postlabel {
text-align:left;
}
.form input[type=text], select {
width: 80px;
height: 25px;
border: 1px solid black;
border-radius: 5px;
margin: 5px 0;
padding: 0 10px;
box-sizing: border-box;
}
.form input[type=button] {
width: 50%;
height: 35px;
border: 1px solid black;
border-radius: 5px;
margin: 10px 0;
background-color: #333;
color: white;
cursor: pointer;
}
.results p{
margin: 5px;
}
.steps p{
margin: 5px;
}
#title {
font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
text-align: center;
font-size: 30px;
margin: 5px;
}
#version {
text-align: center;
font-size: 14px;
margin: 5px;
}
</style>
</head>
<body>
<h1 id="title">Arc Flash Calculator</h1>
<p id="version">Version 1.0.2</p>
<div class="container">
<form class="form">
<div class="inputs">
<label class="prelabel">Secondary Voltage:</label>
<input type="text" id="sec_v">
<label class="postlabel">V</label>
<label class="prelabel">Bolted Fault Current:</label>
<input type="text" id="I_bf_ka">
<label class="postlabel">kA</label>
<label class="prelabel">Electrode Configuration:</label>
<select name="ec" id="ec">
<option value="VCB">VCB</option>
<option value="VCBB">VCBB</option>
<option value="HCB">HCB</option>
<option value="VOA">VOA</option>
<option value="HOA">HOA</option>
</select>
<label class="postlabel">Selection</label>
<label class="prelabel">Conductor Gap:</label>
<input type="text" id="G_mm">
<label class="postlabel">mm</label>
<label class="prelabel">Working Distance:</label>
<input type="text" id="D_in">
<label class="postlabel">in</label>
<label class="prelabel">Box Width:</label>
<input type="text" id="width_in">
<label class="postlabel">in</label>
<label class="prelabel">Box Height:</label>
<input type="text" id="height_in">
<label class="postlabel">in</label>
<label class="prelabel">Box Depth:</label>
<input type="text" id="depth_in">
<label class="postlabel">in</label>
<label class="prelabel">Arc Time:</label>
<input type="text" id="T_ms">
<label class="postlabel">ms</label>
</div>
<input type="button" value="Calculate" onclick="calculate()" id="calculate_btn">
<div class="errors">
<p id="error" class="error">Error:</p>
<p id="volt_error" class="error">Voltage must be between 208 and 15000</p>
<p id="I_bf_error" class="error">Bolted Fault Current out of range for IEEE 1584-2018<br>
208V - 600V: 0.5kA to 106kA<br>
601V - 15kV: 0.2kA to 65kA</p>
</div>
<div class="results" id="results">
<p id="E_cal">Incident Energy:</p>
<p id="AFB_ftin">Arc Flash Boundary:</p>
</div>
<input type="button" value="Show Steps" id="stepsBtn">
<div class="steps" id="steps">
<p id="Etype">Etype:</p>
<p id="A">A:</p>
<p id="B">B:</p>
<p id="width_capped">width_capped:</p>
<p id="height_capped">height_capped:</p>
<p id="EQ_11">EQ_11:</p>
<p id="EQ_12">EQ_12:</p>
<p id="EQ_11_capped">EQ_11_capped:</p>
<p id="EQ_12_capped">EQ_12_capped:</p>
<p id="width_1">width_1:</p>
<p id="height_1">height_1:</p>
<p id="EES">EES:</p>
<p id="Eq_14">Eq_14:</p>
<p id="Eq_15">Eq_15:</p>
<p id="CF">CF:</p>
<p id="I_arc600">I_arc600:</p>
<p id="I_arc2700">I_arc2700:</p>
<p id="I_arc14300">I_arc14300:</p>
<p id="I_arc_LT600">I_arc_LT600:</p>
<p id="I_arc_1">I_arc_1:</p>
<p id="I_arc_2">I_arc_2:</p>
<p id="I_arc_3">I_arc_3:</p>
<p id="I_arc">I_arc:</p>
<p id="E_LT600">E_LT600:</p>
<p id="E_600">E_600:</p>
<p id="E_2700">E_2700:</p>
<p id="E_14300">E_14300:</p>
<p id="E_1">E_1:</p>
<p id="E_2">E_2:</p>
<p id="E_3">E_3:</p>
<p id="E">E:</p>
<p id="AFB_LT600">AFB_LT600:</p>
<p id="AFB_600">AFB_600:</p>
<p id="AFB_2700">AFB_2700:</p>
<p id="AFB_14300">AFB_14300:</p>
<p id="AFB_1">AFB_1:</p>
<p id="AFB_2">AFB_2:</p>
<p id="AFB_3">AFB_3:</p>
<p id="AFB">AFB:</p>
<p id="AFB_in">AFB:</p>
</div>
</form>
</div>
<script src="ArcFlashCalculatorClass.js"></script>
<script>
// Insert some default test data into inputs
document.getElementById("sec_v").value = "480";
document.getElementById("I_bf_ka").value = "45";
document.getElementById("G_mm").value = "32";
document.getElementById("D_in").value = "24"; // 600mm
document.getElementById("width_in").value = "24"; // 600mm
document.getElementById("height_in").value = "24"; // 600mm
document.getElementById("depth_in").value = "10"; // 250mm
document.getElementById("T_ms").value = "61.3";
// Add event listeners to trigger calculate() when text boxes are changed
document.getElementById('sec_v').addEventListener("change", function(e){ calculate() });
document.getElementById('I_bf_ka').addEventListener("change", function(e){ calculate() });
document.getElementById('ec').addEventListener("change", function(e){ calculate() });
document.getElementById('G_mm').addEventListener("change", function(e){ calculate() });
document.getElementById('D_in').addEventListener("change", function(e){ calculate() });
document.getElementById('width_in').addEventListener("change", function(e){ calculate() });
document.getElementById('height_in').addEventListener("change", function(e){ calculate() });
document.getElementById('depth_in').addEventListener("change", function(e){ calculate() });
document.getElementById('T_ms').addEventListener("change", function(e){ calculate() });
// Add event listener to show intermediate calculation steps
const stepsBtn = document.getElementById('stepsBtn');
const ResultsBox = document.getElementById('steps');
ResultsBox.style.display = 'none';
stepsBtn.addEventListener('click', () => {
if (ResultsBox.style.display === 'none'){
ResultsBox.style.display = '';
stepsBtn.value = "Hide Steps";
} else {
ResultsBox.style.display = 'none';
stepsBtn.value = "Show Steps";
}
});
function formatNumber(x) {
let formattedNumber = parseFloat(x);
if (formattedNumber > 1000){
formattedNumber = formattedNumber.toFixed(0);
} else if (x > 100){
formattedNumber = formattedNumber.toFixed(0);
} else if (formattedNumber > 10){
formattedNumber = formattedNumber.toFixed(1);
}else if (formattedNumber > 1){
formattedNumber = formattedNumber.toFixed(2);
}else {
formattedNumber = formattedNumber.toFixed(3);
}
return formattedNumber;
}
function calculate() {
let sec_v = parseFloat(document.getElementById("sec_v").value);
let I_bf_ka = parseFloat(document.getElementById("I_bf_ka").value);
let ec = document.getElementById("ec").value;
let G_mm = parseFloat(document.getElementById("G_mm").value);
let D_in = parseFloat(document.getElementById("D_in").value);
let width_in = parseFloat(document.getElementById("width_in").value);
let height_in = parseFloat(document.getElementById("height_in").value);
let depth_in = parseFloat(document.getElementById("depth_in").value);
let T_ms = parseFloat(document.getElementById("T_ms").value);
//Validate inputs and Show Errors
let containsError = false;
if (sec_v < 208 || sec_v > 15000 || isNaN(document.getElementById("sec_v").value) || isNaN(sec_v)){
document.getElementById('volt_error').style.display = '';
document.getElementById('sec_v').style.borderColor = 'red';
containsError = true;
} else {
document.getElementById('volt_error').style.display = 'none';
document.getElementById('sec_v').style.borderColor = 'black';
}
//I_bf_ka must be within the following range
//Min I_bf @ <= 600v 0.500 kA
//Max I_bf @ <= 600v 106.000 kA
//Min I_bf @ > 600v 0.200 kA
//Max I_bf @ > 600v 65.000 kA
if (sec_v <= 600 && (I_bf_ka < 0.5 || I_bf_ka > 106 || isNaN(document.getElementById("I_bf_ka").value) || isNaN(I_bf_ka))){
document.getElementById('I_bf_error').style.display = '';
document.getElementById('I_bf_ka').style.borderColor = 'red';
containsError = true;
} else if (sec_v > 600 && (I_bf_ka < 0.2 || I_bf_ka > 65 || isNaN(document.getElementById("I_bf_ka").value) || isNaN(I_bf_ka))){
document.getElementById('I_bf_error').style.display = '';
document.getElementById('I_bf_ka').style.borderColor = 'red';
containsError = true;
} else
{
document.getElementById('I_bf_error').style.display = 'none';
document.getElementById('I_bf_ka').style.borderColor = 'black';
}
if (isNaN(document.getElementById("G_mm").value) || G_mm <= 0 || isNaN(G_mm)){
document.getElementById('G_mm').style.borderColor = 'red';
containsError = true;
} else {
document.getElementById('G_mm').style.borderColor = 'black';
}
if (isNaN(document.getElementById("D_in").value) || D_in <= 0 || isNaN(D_in)){
document.getElementById('D_in').style.borderColor = 'red';
containsError = true;
} else {
document.getElementById('D_in').style.borderColor = 'black';
}
if (isNaN(document.getElementById("width_in").value) || width_in <= 0 || isNaN(width_in)){
document.getElementById('width_in').style.borderColor = 'red';
containsError = true;
} else {
document.getElementById('width_in').style.borderColor = 'black';
}
if (isNaN(document.getElementById("height_in").value) || height_in <= 0 || isNaN(height_in)){
document.getElementById('height_in').style.borderColor = 'red';
containsError = true;
} else {
document.getElementById('height_in').style.borderColor = 'black';
}
if (isNaN(document.getElementById("depth_in").value) || depth_in <= 0 || isNaN(depth_in)){
document.getElementById('depth_in').style.borderColor = 'red';
containsError = true;
} else {
document.getElementById('depth_in').style.borderColor = 'black';
}
if (isNaN(document.getElementById("T_ms").value) || T_ms <= 0 || isNaN(T_ms)){
document.getElementById('T_ms').style.borderColor = 'red';
containsError = true;
} else {
document.getElementById('T_ms').style.borderColor = 'black';
}
if (containsError) {
document.getElementById('error').style.display = '';
document.getElementById('results').style.display = 'none';
document.getElementById('stepsBtn').style.display = 'none';
document.getElementById('stepsBtn').value = "Show Steps"
document.getElementById('steps').style.display = 'none';
// exit function early if there are errors
return;
} else {
document.getElementById('error').style.display = 'none';
document.getElementById('results').style.display = '';
document.getElementById('stepsBtn').style.display = '';
}
//Arc Flash Calculator
//sec_v: Secondary Voltage (V)
//I_bf: Bolted Fault Current (kA)
//ec: Electrode Configuration (VCB, VCBB, HCB, VOA, HOA)
//G: Conductor Gap (mm)
//D: Working Distance (in)
//width: Box Width (in)
//height: Box Height (in)
//depth: Box Depth (in)
//T: Arc Time (ms)
//Create new ArcFlashCalculator object
const arcFlashCalculator = new ArcFlashCalculator(
sec_v,
I_bf_ka,
ec,
G_mm,
D_in,
width_in,
height_in,
depth_in,
T_ms
);
//Update screen with calculated output
document.getElementById("E_cal").innerHTML = `Incident Energy: ${formatNumber(arcFlashCalculator.E_cal)} cal/cm2`;
document.getElementById("AFB_ftin").innerHTML = `Arc Flash Boundary: ${arcFlashCalculator.AFB_ftin}`;
document.getElementById("Etype").innerHTML = `Etype: ${arcFlashCalculator.Etype}`;
document.getElementById("A").innerHTML = `A: ${arcFlashCalculator.A}`;
document.getElementById("B").innerHTML = `B: ${arcFlashCalculator.B}`;
document.getElementById("width_capped").innerHTML = `width_capped: ${formatNumber(arcFlashCalculator.width_capped)} mm`;
document.getElementById("height_capped").innerHTML = `height_capped: ${formatNumber(arcFlashCalculator.height_capped)} mm`;
document.getElementById("EQ_11").innerHTML = `EQ_11: ${formatNumber(arcFlashCalculator.EQ_11)}`;
document.getElementById("EQ_12").innerHTML = `EQ_12: ${formatNumber(arcFlashCalculator.EQ_12)}`;
document.getElementById("EQ_11_capped").innerHTML = `EQ_11_capped: ${formatNumber(arcFlashCalculator.EQ_11_capped)}`;
document.getElementById("EQ_12_capped").innerHTML = `EQ_12_capped: ${formatNumber(arcFlashCalculator.EQ_12_capped)}`;
document.getElementById("width_1").innerHTML = `width_1: ${formatNumber(arcFlashCalculator.width_1)} mm`;
document.getElementById("height_1").innerHTML = `height_1: ${formatNumber(arcFlashCalculator.height_1)} mm`;
document.getElementById("EES").innerHTML = `EES: ${formatNumber(arcFlashCalculator.EES)}`;
document.getElementById("Eq_14").innerHTML = `Eq_14: ${formatNumber(arcFlashCalculator.Eq_14)}`;
document.getElementById("Eq_15").innerHTML = `Eq_15: ${formatNumber(arcFlashCalculator.Eq_15)}`;
document.getElementById("CF").innerHTML = `CF: ${formatNumber(arcFlashCalculator.CF)}`;
document.getElementById("I_arc600").innerHTML = `I_arc600: ${formatNumber(arcFlashCalculator.I_arc600)} kA`;
document.getElementById("I_arc2700").innerHTML = `I_arc2700: ${formatNumber(arcFlashCalculator.I_arc2700)} kA`;
document.getElementById("I_arc14300").innerHTML = `I_arc14300: ${formatNumber(arcFlashCalculator.I_arc14300)} kA`;
document.getElementById("I_arc_LT600").innerHTML = `I_arc_LT600: ${formatNumber(arcFlashCalculator.I_arc_LT600)} kA`;
document.getElementById("I_arc_1").innerHTML =`I_arc_1: ${formatNumber(arcFlashCalculator.I_arc_1)} kA`;
document.getElementById("I_arc_2").innerHTML = `I_arc_2: ${formatNumber(arcFlashCalculator.I_arc_2)} kA`;
document.getElementById("I_arc_3").innerHTML = `I_arc_3: ${formatNumber(arcFlashCalculator.I_arc_3)} kA`;
document.getElementById("I_arc").innerHTML = `I_arc: ${formatNumber(arcFlashCalculator.I_arc)} kA`;
document.getElementById("E_LT600").innerHTML = `E_LT600: ${formatNumber(arcFlashCalculator.E_LT600)} J/cm2`;
document.getElementById("E_600").innerHTML = `E_600: ${formatNumber(arcFlashCalculator.E_600)} J/cm2`;
document.getElementById("E_2700").innerHTML = `E_2700: ${formatNumber(arcFlashCalculator.E_2700)} J/cm2`;
document.getElementById("E_14300").innerHTML = `E_14300: ${formatNumber(arcFlashCalculator.E_14300)} J/cm2`;
document.getElementById("E_1").innerHTML = `E_1: ${formatNumber(arcFlashCalculator.E_1)} J/cm2`;
document.getElementById("E_2").innerHTML = `E_2: ${formatNumber(arcFlashCalculator.E_2)} J/cm2`;
document.getElementById("E_3").innerHTML = `E_3: ${formatNumber(arcFlashCalculator.E_3)} J/cm2`;
document.getElementById("E").innerHTML = `E: ${formatNumber(arcFlashCalculator.E)} J/cm2`;
document.getElementById("AFB_LT600").innerHTML = `AFB_LT600: ${formatNumber(arcFlashCalculator.AFB_LT600)} mm`;
document.getElementById("AFB_600").innerHTML = `AFB_600: ${formatNumber(arcFlashCalculator.AFB_600)} mm`;
document.getElementById("AFB_2700").innerHTML = `AFB_2700: ${formatNumber(arcFlashCalculator.AFB_2700)} mm`;
document.getElementById("AFB_14300").innerHTML = `AFB_14300: ${formatNumber(arcFlashCalculator.AFB_14300)} mm`;
document.getElementById("AFB_1").innerHTML = `AFB_1: ${formatNumber(arcFlashCalculator.AFB_1)} mm`;
document.getElementById("AFB_2").innerHTML = `AFB_2: ${formatNumber(arcFlashCalculator.AFB_2)} mm`;
document.getElementById("AFB_3").innerHTML = `AFB_3: ${formatNumber(arcFlashCalculator.AFB_3)} mm`;
document.getElementById("AFB").innerHTML = `AFB: ${formatNumber(arcFlashCalculator.AFB)} mm`;
document.getElementById("AFB_in").innerHTML = `AFB: ${formatNumber(arcFlashCalculator.AFB_in)} in`;
} //end of calculate() function
//Run calculate() on page load
calculate();
</script>
</body>
</html>