{"id":160,"date":"2026-09-07T00:38:31","date_gmt":"2026-09-07T00:38:31","guid":{"rendered":"https:\/\/luliancable.com\/?p=160"},"modified":"2026-10-16T06:14:09","modified_gmt":"2026-10-16T06:14:09","slug":"mineral-insulated-fire-resistant-cable","status":"publish","type":"page","link":"https:\/\/luliancable.com\/ru\/products\/mineral-insulated-fire-resistant-cable\/","title":{"rendered":"Mineral Insulated &#038; Fire-Resistant Cable"},"content":{"rendered":"\n\n<style>\n.lllv{--red:#E30613;--ink:#101720;--mut:#5b6673;--line:#e2e6ea;--soft:#f4f6f8;color:var(--ink);line-height:1.6}\n.lllv *{box-sizing:border-box}\n.lllv h2{font-size:26px;line-height:1.2;margin:0 0 10px;color:var(--ink)}\n.lllv h3{font-size:17px;margin:0 0 8px;color:var(--ink)}\n.lllv p{margin:0 0 12px}\n.lllv .k{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--red);font-weight:700;margin-bottom:8px}\n.lllv .wrap{max-width:1180px;margin:0 auto;padding:0 24px}\n.lllv .hero{background:linear-gradient(135deg,#101720 0%,#1d2836 100%);color:#fff;padding:52px 0}\n.lllv .hero h1{color:#fff;font-size:36px;line-height:1.15;margin:0 0 14px}\n.lllv .hero p{color:#c9d2dc;max-width:64ch}\n.lllv .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}\n.lllv .chip{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);color:#fff;padding:5px 12px;border-radius:999px;font-size:13px}\n.lllv .sec{padding:42px 0;border-bottom:1px solid var(--line)}\n.lllv table{width:100%;border-collapse:collapse;font-size:14px;background: var(--lu-card)}\n.lllv th,.lllv td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}\n.lllv th{background:var(--soft);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}\n.lllv .badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}\n.lllv .badge{border:1px solid var(--line);background: var(--lu-card);padding:6px 12px;border-radius:999px;font-size:13px}\n.lllv .badge.red{background:var(--red);color:#fff;border-color:var(--red)}\n.lllv .grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}\n.lllv .grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}\n.lllv .card{border:1px solid var(--line);background: var(--lu-card);padding:18px}\n.lllv .num{color:var(--red);font-weight:700;font-size:13px}\n.lllv figure{margin:0;border:1px solid var(--line);background: var(--lu-card)}\n.lllv figure img{width:100%;height:auto;display:block}\n.lllv figcaption{font-size:12px;color:var(--mut);padding:8px 12px;border-top:1px solid var(--line)}\n.lllv .note{font-size:13px;color:var(--mut);margin-top:10px}\n.lllv details{border:1px solid var(--line);background: var(--lu-card);margin-bottom:10px;padding:0}\n.lllv summary{cursor:pointer;padding:14px 18px;font-weight:700;list-style:none}\n.lllv summary::-webkit-details-marker{display:none}\n.lllv summary:after{content:\"+\";float:right;color:var(--red);font-size:20px}\n.lllv details[open] summary:after{content:\"\u2212\"}\n.lllv details .a{padding:0 18px 16px}\n.lllv .rfq{background:#101720;color:#fff;padding:34px;border-radius:8px;margin:40px 0;display:grid;grid-template-columns:1.4fr 1fr;gap:24px}\n.lllv .rfq h2{color:#fff}\n.lllv .rfq .btn{display:inline-block;background:var(--red);color:#fff;padding:12px 20px;text-decoration:none;font-weight:700;border-radius:6px;margin-right:10px}\n.lllv .rfq .btn.g{background:transparent;border:1px solid #46536a}\n.lllv .rel{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}\n.lllv .rel a{display:block;border:1px solid var(--line);background: var(--lu-card);padding:14px;text-decoration:none;color:var(--ink)}\n.lllv .rel a:hover{border-color:var(--red)}\n.lllv .rel .t{font-size:11px;letter-spacing:.1em;color:var(--red);text-transform:uppercase}\n@media(max-width:900px){.lllv .grid2,.lllv .grid3,.lllv .rfq{grid-template-columns:1fr}.lllv .rel{grid-template-columns:repeat(2,1fr)}}\n@media(max-width:560px){.lllv .hero h1{font-size:27px}.lllv .rel{grid-template-columns:1fr}}\n<\/style>\n<div class=\"lllv\">\n  <div class=\"hero\"><div class=\"wrap\">\n    <p class=\"k\" style=\"color:#e8b0a5\">PRODUCT FAMILY \u00b7 FIRE-RESISTANT &amp; MINERAL INSULATED \u00b7 IEC 60331<\/p>\n    <h1>Fire-Resistant &amp; Mineral Insulated Cable<\/h1>\n    <p>Cable built so that life-safety circuits keep working during a fire: fire pumps, smoke extraction, emergency lighting, fire-alarm power and escape-route services. Three constructions cover everything from the highest-integrity rigid cable to flexible LSZH designs.<\/p>\n    <div class=\"chips\"><span class=\"chip\">BTTZ rigid MI<\/span><span class=\"chip\">BTLY flexible MI<\/span><span class=\"chip\">BBTRZ LSZH<\/span><span class=\"chip\">IEC 60331 \u00b7 BS 6387<\/span><span class=\"chip\">Patented design<\/span><\/div>\n  <\/div><\/div>\n  <div class=\"sec\"><div class=\"wrap\">\n    <p class=\"k\">\u00a701 \u2014 Range<\/p>\n    <h2>Mineral insulated and fire-resistant cable types<\/h2>\n    <div class=\"grid3\">\n      <a href=\"\/products\/mineral-insulated-fire-resistant-cable\/bttz-btly-bbtrz-fire-resistant-cable\/\" style=\"text-decoration:none;color:inherit\"><div class=\"card\"><div class=\"num\">HIGHEST INTEGRITY<\/div><h3>Rigid Mineral Insulated Cable (BTTZ)<\/h3><p>Copper conductors, compressed magnesium-oxide insulation, seamless copper sheath. Fully inorganic \u2014 nothing to burn.<\/p><\/div><\/a>\n      <a href=\"\/products\/mineral-insulated-fire-resistant-cable\/bttz-btly-bbtrz-fire-resistant-cable\/\" style=\"text-decoration:none;color:inherit\"><div class=\"card\"><div class=\"num\">FLEXIBLE MI<\/div><h3>Flexible Mineral Insulated Cable (BTLY \/ NG-A)<\/h3><p>Corrugated copper sheath with mineral composite insulation \u2014 near-equivalent fire performance, far easier to install.<\/p><\/div><\/a>\n      <a href=\"\/products\/mineral-insulated-fire-resistant-cable\/bttz-btly-bbtrz-fire-resistant-cable\/\" style=\"text-decoration:none;color:inherit\"><div class=\"card\"><div class=\"num\">LSZH FIRE-RESISTANT<\/div><h3>LSZH Mineral Insulated Cable (BBTRZ)<\/h3><p>Mineral-insulated core with LSZH outer covering for tunnels, metros and hospitals where fire and smoke rules both apply.<\/p><\/div><\/a>\n      <a href=\"\/flame-retardant-vs-fire-resistant-cable\/\" style=\"text-decoration:none;color:inherit\"><div class=\"card\"><div class=\"num\">VARIANTS<\/div><h3>Fire-Resistant Power Cable (NH-YJV \/ WDZN-YJY)<\/h3><p>Fire-resistant power cable and LSZH fire-resistant power cable for distribution circuits that must survive a fire.<\/p><\/div><\/a>\n      <a href=\"\/products\/power-cable\/\" style=\"text-decoration:none;color:inherit\"><div class=\"card\"><div class=\"num\">VARIANTS<\/div><h3>LSZH Power Cable (WDZ-YJY)<\/h3><p>Low-smoke halogen-free power cable for occupied buildings without the full fire-resistance requirement.<\/p><\/div><\/a>\n      <a href=\"\/products\/building-wire\/\" style=\"text-decoration:none;color:inherit\"><div class=\"card\"><div class=\"num\">BUILDING WIRE<\/div><h3>Fire-Resistant and LSZH Building Wire (NH-BV \/ WDZ-BYJ)<\/h3><p>Fire-resistant and low-smoke building wire for final circuits.<\/p><\/div><\/a>\n    <\/div>\n    <div class=\"grid2\" style=\"margin-top:18px\">\n      <figure><img decoding=\"async\" src=\"https:\/\/luliancable.com\/wp-content\/uploads\/2026\/09\/lulian-mineral-insulated-cable.jpg\" alt=\"Mineral insulated fire-resistant cable: BTTZ smooth copper sheath and BTLY corrugated sheath\" width=\"2048\" height=\"2048\"><figcaption>BTTZ &amp; BTLY \u00b7 factory photo<\/figcaption><\/figure>\n      <div class=\"card\"><div class=\"num\">WHAT THE RATING MEANS<\/div><h3>Fire-resistant \u2260 flame-retardant<\/h3><p>Flame-retardant (ZR) cable resists ignition and stops flame spread, but is not expected to work during the fire. Fire-resistant (NH \/ MI) cable keeps the circuit alive \u2014 typically 90\u2013180 minutes at 750\u2013950 \u00b0C. Life-safety circuits need the second one.<\/p><p><a href=\"\/flame-retardant-vs-fire-resistant-cable\/\" style=\"color:var(--red);font-weight:700\">Read the full comparison \u2192<\/a><\/p><\/div>\n    <\/div>\n  <\/div><\/div>\n  <div class=\"sec\"><div class=\"wrap\">\n    <p class=\"k\">\u00a702 \u2014 Standards<\/p>\n    <h2>What to require in the specification.<\/h2>\n    <table>\n      <tr><th>Rating<\/th><th>Standard<\/th><th>Proves<\/th><\/tr>\n      <tr><td>Circuit integrity<\/td><td>IEC 60331-21<\/td><td>Works at 750 \u00b0C flame for \u2265 90 min<\/td><\/tr>\n      <tr><td>Fire + water + shock<\/td><td>BS 6387 C\/W\/Z<\/td><td>Survives fire, water spray and mechanical impact<\/td><\/tr>\n      <tr><td>Low smoke \/ halogen-free<\/td><td>IEC 61034 \/ 60754<\/td><td>Protects escape routes and equipment<\/td><\/tr>\n      <tr><td>MI construction<\/td><td>GB\/T 13033 \u00b7 BS EN 60702-1<\/td><td>Dimensional and electrical conformity<\/td><\/tr>\n    <\/table>\n  <\/div><\/div>\n\n  <div class=\"sec\"><div class=\"wrap\">\n    <div class=\"rfq\">\n      <div><h2>Send the cable schedule. We confirm in 24 hours.<\/h2>\n      <p style=\"color:#c9d2dc\">Share type, size, cores, installation method, total length and destination port.<\/p>\n      <p><a class=\"btn\" href=\"mailto:sales@luliancable.com?subject=Fire%20resistant%20cable%20RFQ\">Email RFQ \u2192 sales@luliancable.com<\/a><a class=\"btn g\" href=\"\/contact\/\">Open RFQ form<\/a><\/p><\/div>\n      <div><\/div>\n    <\/div>\n    <p class=\"k\">Related<\/p><div class=\"rel\"><a href=\"\/products\/mineral-insulated-fire-resistant-cable\/bttz-btly-bbtrz-fire-resistant-cable\/\"><div class=\"t\">Product<\/div><strong>BTTZ \/ BTLY \/ BBTRZ<\/strong><\/a>\n      <a href=\"\/what-is-mineral-insulated-cable\/\"><div class=\"t\">Guide<\/div><strong>What Is MI Cable<\/strong><\/a>\n      <a href=\"\/building-infrastructure-cable-solutions\/\"><div class=\"t\">Application<\/div><strong>Buildings<\/strong><\/a>\n      <a href=\"\/quality-certifications\/\"><div class=\"t\">Evidence<\/div><strong>Certificates<\/strong><\/a><\/div>\n  <\/div><\/div>\n<\/div>\n\n\n\n\n<div class=\"rfq-head\" style=\"max-width:1240px;margin:0 auto;padding:0 24px\"><p style=\"font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#EA382F;font-weight:800;margin:0 0 8px\">Send an enquiry<\/p><h2 style=\"color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.2;margin:0 0 4px\">Request a quote<\/h2><p style=\"color:#9A9A9A;font-size:15px;margin:0 0 20px\">Three fields. 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