{"id":100138,"date":"2026-02-15T20:19:46","date_gmt":"2026-02-15T20:19:46","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100138"},"modified":"2026-02-15T20:19:46","modified_gmt":"2026-02-15T20:19:46","slug":"insulation-resistance-calculator","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/bn\/calculators\/insulation-resistance-calculator\/","title":{"rendered":"\u09ae\u09cb\u099f\u09b0 \u0987\u09a8\u09b8\u09c1\u09b2\u09c7\u09b6\u09a8 \u09aa\u09cd\u09b0\u09a4\u09bf\u09b0\u09cb\u09a7 (\u09ae\u09c7\u0997\u09be\u09b0) \u0987\u09a8\u09cd\u099f\u09be\u09b0\u09aa\u09cd\u09b0\u09c7\u099f\u09be\u09b0 | IEEE 43"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Motor Insulation Resistance Interpreter\",\"description\":\"Interpret motor insulation resistance (megger) readings per IEEE 43. 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a:hover{text-decoration:underline}\n.vc-footer-links{margin-top:8px;font-size:12px}\n.vc-footer-links a{margin:0 8px}\n@media print{.vc-section-body{max-height:none!important}.vc-faq-a{max-height:none!important}.vc-results{max-height:none!important;padding:24px!important}.vc-copy-btn,.vc-section-chevron,.vc-faq-chevron,.vc-promo{display:none!important}}\n<\/style>\n\n<div class=\"vc-calculator\" id=\"vc-insulation-resistance\">\n\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool<\/p>\n    <h1 class=\"vc-header-title\">Motor Insulation Resistance Interpreter<\/h1>\n    <p class=\"vc-header-subtitle\">Interpret megger test results per IEEE Std 43. Calculate minimum acceptable insulation resistance, temperature-corrected values, polarization index, and trending recommendations.<\/p>\n    <div class=\"vc-badges\">\n        <span class=\"vc-badge\">IEEE 43<\/span>\n        <span class=\"vc-badge\">Megger Test<\/span>\n        <span class=\"vc-badge\">Polarization Index<\/span>\n    <\/div>\n<\/header>\n\n<div class=\"vc-card\">\n    <form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\">\n        <div class=\"vc-form-grid\">\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-ir1\">1-Minute IR Reading <span class=\"vc-label-hint\">(M\u03a9)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-ir1\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 500\" value=\"500\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-ir10\">10-Minute IR Reading <span class=\"vc-label-hint\">(M\u03a9, optional for PI)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-ir10\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 2000\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-voltage\">Motor Rated Voltage <span class=\"vc-label-hint\">(V)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-voltage\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 4160\" value=\"4160\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-temp\">Test Temperature <span class=\"vc-label-hint\">(\u00b0C)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-temp\" inputmode=\"decimal\" step=\"any\" placeholder=\"e.g. 25\" value=\"25\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-age\">Motor Age \/ Condition<\/label>\n                <select class=\"vc-select\" id=\"vc-age\">\n                    <option value=\"new\">New or recently rewound<\/option>\n                    <option value=\"service\" selected>In service (normal)<\/option>\n                    <option value=\"old\">Aged (>20 years)<\/option>\n                <\/select>\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-insclass\">Insulation Class<\/label>\n                <select class=\"vc-select\" id=\"vc-insclass\">\n                    <option value=\"thermoplastic\">Thermoplastic (older)<\/option>\n                    <option value=\"thermoset\" selected>Thermoset (modern, epoxy)<\/option>\n                <\/select>\n            <\/div>\n        <\/div>\n    <\/form>\n\n    <div class=\"vc-results vc-visible\" id=\"vc-results\">\n        <div class=\"vc-results-head\">\n            <h2 class=\"vc-results-title\">Interpretation<\/h2>\n            <button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\">\n                <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg>\n                Copy\n            <\/button>\n        <\/div>\n        <div class=\"vc-result-grid\">\n            <div class=\"vc-rcard vc-rcard-primary\">\n                <div class=\"vc-rcard-label\">Overall Assessment<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-verdict\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Minimum Acceptable (IEEE 43)<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-minimum\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Corrected IR @ 40\u00b0C<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-corrected\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Temperature Correction Factor<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-tempfactor\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Polarization Index (PI)<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-pi\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Recommended Test Voltage<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-testvolt\">\u2014<\/div>\n            <\/div>\n        <\/div>\n        <div class=\"vc-rcard\" style=\"margin-bottom:12px;\">\n            <div class=\"vc-rcard-label\">Trending Recommendation<\/div>\n            <div id=\"vc-r-trending\" style=\"font-size:14px;color:var(--vc-ink-secondary);margin-top:6px;\">\u2014<\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<!-- Theory -->\n<div class=\"vc-section vc-open\" id=\"vc-sec-theory\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\">\n        <span class=\"vc-section-toggle-text\">\n            <span class=\"vc-section-icon\">\ud83d\udcd8<\/span>\n            <span class=\"vc-section-title\">Theory &#038; Standards<\/span>\n        <\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner vc-theory\">\n            <h3>Minimum Insulation Resistance (IEEE 43)<\/h3>\n            <p>Per IEEE Std 43, the minimum recommended 1-minute insulation resistance at 40 \u00b0C is:<\/p>\n            <div class=\"vc-formula-box\">R_min = kV + 1 &nbsp;&nbsp;(M\u03a9)<\/div>\n            <p>Where <strong>kV<\/strong> is the rated voltage in kilovolts. For a 4160V motor: R_min = 4.16 + 1 = 5.16 M\u03a9.<\/p>\n\n            <h3>Temperature Correction<\/h3>\n            <p>Insulation resistance approximately doubles for every 10 \u00b0C decrease in temperature. To normalize to 40 \u00b0C:<\/p>\n            <div class=\"vc-formula-box\">R\u2084\u2080 = R_T \u00d7 C_T, where C_T = 0.5^((40 \u2212 T)\/10)<\/div>\n            <p>For a reading at 25 \u00b0C: C_T = 0.5^((40\u221225)\/10) = 0.5^1.5 = 0.354. So a 500 M\u03a9 reading at 25 \u00b0C becomes 177 M\u03a9 at 40 \u00b0C.<\/p>\n\n            <h3>Polarization Index (PI)<\/h3>\n            <div class=\"vc-formula-box\">PI = IR\u2081\u2080min \/ IR\u2081min<\/div>\n            <table class=\"vc-table\">\n                <thead><tr><th>PI Value<\/th><th>Insulation Condition<\/th><\/tr><\/thead>\n                <tbody>\n                    <tr><td>&lt; 1.0<\/td><td>Dangerous \u2014 do not energize<\/td><\/tr>\n                    <tr><td>1.0 \u2013 2.0<\/td><td>Questionable<\/td><\/tr>\n                    <tr><td>2.0 \u2013 4.0<\/td><td>Good<\/td><\/tr>\n                    <tr><td>&gt; 4.0<\/td><td>Excellent<\/td><\/tr>\n                <\/tbody>\n            <\/table>\n\n            <h3>Recommended Test Voltages (IEEE 43)<\/h3>\n            <table class=\"vc-table\">\n                <thead><tr><th>Motor Rated Voltage<\/th><th>DC Test Voltage<\/th><\/tr><\/thead>\n                <tbody>\n                    <tr><td>&lt; 1000 V<\/td><td>500 V DC<\/td><\/tr>\n                    <tr><td>1000 \u2013 2500 V<\/td><td>500 \u2013 1000 V DC<\/td><\/tr>\n                    <tr><td>2501 \u2013 5000 V<\/td><td>1000 \u2013 2500 V DC<\/td><\/tr>\n                    <tr><td>5001 \u2013 12000 V<\/td><td>2500 \u2013 5000 V DC<\/td><\/tr>\n                    <tr><td>&gt; 12000 V<\/td><td>5000 \u2013 10000 V DC<\/td><\/tr>\n                <\/tbody>\n            <\/table>\n\n            <div class=\"vc-warning-box\">\n                <p style=\"margin:0;font-size:14px;color:var(--vc-ink-secondary);\"><strong>\u26a0\ufe0f Important:<\/strong> A single IR reading is less meaningful than a trend. Always compare with previous readings taken under similar conditions. A sudden drop (>50%) is more alarming than an absolutely low but stable value.<\/p>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<!-- Related -->\n<div class=\"vc-section\" id=\"vc-sec-related\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\">\n            <span class=\"vc-section-icon\">\ud83d\udd17<\/span>\n            <span class=\"vc-section-title\">Related Calculators<\/span>\n        <\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\">\n            <div class=\"vc-related\">\n                <a class=\"vc-related-link\" href=\"\/calculators\/motor-winding-resistance\/\">Winding Resistance Calculator<\/a>\n                <a class=\"vc-related-link\" href=\"\/calculators\/diagnostic-matrix\/\">Vibration Diagnostic Matrix<\/a>\n                <a class=\"vc-related-link\" href=\"\/calculators\/vibration-glossary\/\">Vibration Glossary<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<!-- FAQ -->\n<div class=\"vc-section\" id=\"vc-sec-faq\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\">\n            <span class=\"vc-section-icon\">\u2753<\/span>\n            <span class=\"vc-section-title\">Frequently Asked Questions<\/span>\n        <\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\">\n            <div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-promo\">\n    <div class=\"vc-promo-text\">\n        <strong>Vibromera \u2014 Portable Balancing &#038; Vibration Analysis<\/strong><br>\n        Professional field balancing instruments and software. 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Last updated: February 2025<\/p>\n    <div class=\"vc-footer-links\">\n        <a href=\"\/calculators\/engineering-calculators\/\">All Calculators<\/a>\n        <a href=\"https:\/\/vibromera.eu\/contacts\/\">Contact<\/a>\n    <\/div>\n<\/footer>\n\n<\/div>\n\n<script>\n(function() {\n    'use strict';\n\n    function $(id) { return document.getElementById(id); }\n    function fmt(n, d) {\n        if (isNaN(n) || !isFinite(n)) return '\u2014';\n        var f = n.toFixed(d === undefined ? 2 : d);\n        return f.replace(\/(\\.\\d*?)0+$\/, '$1').replace(\/\\.$\/, '');\n    }\n\n    function getTestVoltage(ratedV) {\n        if (ratedV < 1000) return '500 V DC';\n        if (ratedV <= 2500) return '500\u20131000 V DC';\n        if (ratedV <= 5000) return '1000\u20132500 V DC';\n        if (ratedV <= 12000) return '2500\u20135000 V DC';\n        return '5000\u201310000 V DC';\n    }\n\n    function calculate() {\n        var ir1 = parseFloat($('vc-ir1').value);\n        var ir10 = parseFloat($('vc-ir10').value);\n        var voltage = parseFloat($('vc-voltage').value);\n        var temp = parseFloat($('vc-temp').value);\n        var age = $('vc-age').value;\n        var insclass = $('vc-insclass').value;\n\n        if (isNaN(ir1) || ir1 < 0 || isNaN(voltage) || voltage <= 0) {\n            $('vc-r-verdict').innerHTML = '\u2014';\n            return;\n        }\n\n        var kv = voltage \/ 1000;\n        var rMin = kv + 1; \/\/ M\u03a9 per IEEE 43\n\n        \/\/ Temperature correction to 40\u00b0C\n        var tempC = isNaN(temp) ? 40 : temp;\n        var corrFactor = Math.pow(0.5, (40 - tempC) \/ 10);\n        var ir40 = ir1 * corrFactor;\n\n        \/\/ PI calculation\n        var piVal = NaN;\n        var piText = 'Enter 10-min reading to calculate';\n        var piClass = '';\n        if (!isNaN(ir10) && ir10 > 0 && ir1 > 0) {\n            piVal = ir10 \/ ir1;\n            if (piVal < 1.0) { piText = fmt(piVal, 2) + ' \u2014 <span class=\"vc-status-fail\">DANGEROUS<\/span>'; }\n            else if (piVal < 2.0) { piText = fmt(piVal, 2) + ' \u2014 <span class=\"vc-status-warn\">Questionable<\/span>'; }\n            else if (piVal < 4.0) { piText = fmt(piVal, 2) + ' \u2014 <span class=\"vc-status-pass\">Good<\/span>'; }\n            else { piText = fmt(piVal, 2) + ' \u2014 <span class=\"vc-status-pass\">Excellent<\/span>'; }\n        }\n\n        \/\/ Thermoset PI note\n        if (insclass === 'thermoset' && !isNaN(piVal) && piVal > 5) {\n            piText += '<br><span style=\"font-size:12px;color:var(--vc-ink-muted);\">Note: Thermoset insulation may show very high PI (>5) \u2014 this is normal.<\/span>';\n        }\n\n        \/\/ Overall verdict\n        var verdict, verdictClass;\n        if (ir40 < rMin) {\n            verdict = 'FAIL';\n            verdictClass = 'vc-status-fail';\n        } else if (ir40 < rMin * 5) {\n            verdict = 'MARGINAL \u2014 Monitor closely';\n            verdictClass = 'vc-status-warn';\n        } else if (ir40 < 100) {\n            verdict = 'ACCEPTABLE';\n            verdictClass = 'vc-status-warn';\n        } else {\n            verdict = 'PASS \u2014 Good insulation';\n            verdictClass = 'vc-status-pass';\n        }\n\n        if (!isNaN(piVal) && piVal < 1.0) {\n            verdict = 'FAIL \u2014 PI < 1.0, moisture or contamination likely';\n            verdictClass = 'vc-status-fail';\n        }\n\n        $('vc-r-verdict').innerHTML = '<span class=\"' + verdictClass + '\">' + verdict + '<\/span>';\n        $('vc-r-minimum').innerHTML = fmt(rMin, 1) + ' <span class=\"vc-rcard-unit\">M\u03a9 at 40 \u00b0C (kV + 1 rule)<\/span>';\n        $('vc-r-corrected').innerHTML = fmt(ir40, 1) + ' <span class=\"vc-rcard-unit\">M\u03a9<\/span> <span class=\"vc-rcard-unit\">(from ' + fmt(ir1, 1) + ' M\u03a9 at ' + fmt(tempC, 0) + ' \u00b0C)<\/span>';\n        $('vc-r-tempfactor').innerHTML = fmt(corrFactor, 4);\n        $('vc-r-pi').innerHTML = piText;\n        $('vc-r-testvolt').innerHTML = getTestVoltage(voltage);\n\n        \/\/ Trending recommendation\n        var trending = '';\n        if (ir40 >= rMin * 10) {\n            trending = '<strong>Healthy insulation.<\/strong> Continue routine testing at 6\u201312 month intervals. Record values for trend analysis.';\n        } else if (ir40 >= rMin) {\n            trending = '<strong>Adequate but declining.<\/strong> Increase testing frequency to every 3\u20136 months. Investigate if values drop >25% between tests. Consider cleaning or drying the winding.';\n        } else {\n            trending = '<strong>Below minimum.<\/strong> Do not energize. Investigate: check for moisture, contamination, or damage. Clean\/dry the winding and retest. If still failing, the winding may need repair or replacement.';\n        }\n        if (age === 'old') {\n            trending += ' <em>Note: aged motors may show lower readings \u2014 compare with the machine\\'s own historical trend.<\/em>';\n        }\n        $('vc-r-trending').innerHTML = trending;\n\n        $('vc-results').classList.add('vc-visible');\n    }\n\n    $('vc-form').addEventListener('input', calculate);\n    $('vc-form').addEventListener('change', calculate);\n\n    $('vc-copy-btn').addEventListener('click', function() {\n        var text = 'Insulation Resistance Interpretation\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\n' +\n            '1-min IR: ' + $('vc-ir1').value + ' M\u03a9\\n' +\n            'Motor Voltage: ' + $('vc-voltage').value + ' V\\n' +\n            'Temperature: ' + $('vc-temp').value + ' \u00b0C\\n' +\n            'Corrected @ 40\u00b0C: ' + $('vc-r-corrected').textContent + '\\n' +\n            'Minimum: ' + $('vc-r-minimum').textContent + '\\n' +\n            'PI: ' + $('vc-r-pi').textContent + '\\n' +\n            'Verdict: ' + $('vc-r-verdict').textContent + '\\n' +\n            '\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nvibromera.eu';\n        if (navigator.clipboard) {\n            navigator.clipboard.writeText(text).then(function() {\n                var btn = $('vc-copy-btn');\n                btn.classList.add('vc-copied');\n                btn.innerHTML = '<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><polyline points=\"20 6 9 17 4 12\"\/><\/svg> Copied!';\n                setTimeout(function() { btn.classList.remove('vc-copied'); btn.innerHTML = '<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy'; }, 2000);\n            });\n        }\n    });\n\n    document.querySelectorAll('.vc-section-toggle').forEach(function(btn) {\n        btn.addEventListener('click', function() {\n            var section = this.closest('.vc-section');\n            section.classList.toggle('vc-open');\n            this.setAttribute('aria-expanded', section.classList.contains('vc-open'));\n        });\n    });\n\n    var faqData = [\n        { q: 'What is the \"kV + 1\" rule?', a: '<p>IEEE Std 43 recommends a minimum 1-minute insulation resistance (at 40 \u00b0C) of <strong>(kV + 1) M\u03a9<\/strong>, where kV is the rated line-to-line voltage in kilovolts. This is a minimum \u2014 healthy motors typically read much higher.<\/p>' },\n        { q: 'Why correct for temperature?', a: '<p>Insulation resistance decreases as temperature increases (approximately halves every 10 \u00b0C). To compare readings taken at different temperatures, normalize to 40 \u00b0C standard reference.<\/p>' },\n        { q: 'What is Polarization Index?', a: '<p>PI is the ratio of 10-minute to 1-minute IR readings. It indicates how well the insulation absorbs charge. A low PI (&lt;2) suggests moisture or contamination. Thermoset insulation may show very high PI (&gt;5) which is normal.<\/p>' },\n        { q: 'Should I test hot or cold?', a: '<p>Both have value. Cold readings (motor off for >8 hours) are best for trending. Hot readings can reveal problems masked when cold. Always record the temperature and normalize to 40 \u00b0C.<\/p>' },\n        { q: 'What causes low insulation resistance?', a: '<p>Common causes: moisture absorption, contamination (oil, dust, chemicals), insulation degradation from aging or overheating, physical damage, and cracked insulation from thermal cycling.<\/p>' }\n    ];\n    var faqList = $('vc-faq-list');\n    faqData.forEach(function(faq) {\n        faqList.innerHTML += '<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>' + faq.q + '<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">' + faq.a + '<\/div><\/div><\/div>';\n    });\n    faqList.addEventListener('click', function(e) {\n        var btn = e.target.closest('.vc-faq-q');\n        if (!btn) return;\n        btn.closest('.vc-faq-item').classList.toggle('vc-open');\n    });\n\n    calculate();\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>IEEE \u09ea\u0969 \u09aa\u09cd\u09b0\u09a4\u09bf \u09ac\u09bf\u09a8\u09be\u09ae\u09c2\u09b2\u09cd\u09af\u09c7 \u0985\u09a8\u09b2\u09be\u0987\u09a8 \u09ae\u09cb\u099f\u09b0 \u09a8\u09bf\u09b0\u09cb\u09a7\u0995 \u09aa\u09cd\u09b0\u09a4\u09bf\u09b0\u09cb\u09a7 \u09ac\u09cd\u09af\u09be\u0996\u09cd\u09af\u09be\u0995\u09be\u09b0\u09c0\u0964 \u09a8\u09cd\u09af\u09c2\u09a8\u09a4\u09ae \u0997\u09cd\u09b0\u09b9\u09a3\u09af\u09cb\u0997\u09cd\u09af \u09aa\u09cd\u09b0\u09a4\u09bf\u09b0\u09cb\u09a7, \u09a4\u09be\u09aa\u09ae\u09be\u09a4\u09cd\u09b0\u09be \u09b8\u0982\u09b6\u09cb\u09a7\u09a8, \u09aa\u09cb\u09b2\u09be\u09b0\u09be\u0987\u099c\u09c7\u09b6\u09a8 \u09b8\u09c2\u099a\u0995 \u098f\u09ac\u0982 \u09aa\u09be\u09b8\/\u09ac\u09cd\u09af\u09b0\u09cd\u09a5 \u09ae\u09c2\u09b2\u09cd\u09af\u09be\u09af\u09bc\u09a8 \u0997\u09a3\u09a8\u09be \u0995\u09b0\u09c1\u09a8\u0964<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100138","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100138","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100138\/revisions"}],"predecessor-version":[{"id":100452,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100138\/revisions\/100452"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/media?parent=100138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/categories?post=100138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/tags?post=100138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}