{"id":1449,"date":"2026-09-10T02:04:32","date_gmt":"2026-09-10T02:04:32","guid":{"rendered":"https:\/\/prennox.com\/?post_type=product&#038;p=1449"},"modified":"2026-09-10T02:04:32","modified_gmt":"2026-09-10T02:04:32","slug":"ddp-diamond-dotted-paper","status":"publish","type":"product","link":"https:\/\/prennox.com\/ar\/product\/ddp-diamond-dotted-paper\/","title":{"rendered":"DDP (Diamond Dotted Paper)"},"content":{"rendered":"<p>Diamond Dotted Paper (DDP) is an electrical insulation material made from high-performance electrical-grade cable paper coated with a specially modified epoxy resin in a diamond-dot pattern.<br \/>\nIt is primarily used for turn-to-turn and interlayer insulation in oil-immersed transformer windings. The heat-activated resin coating provides bonding between insulation layers during the winding drying process.<\/p>\n<h4>Key Features<\/h4>\n<ul>\n<li>Combines electrical insulation with heat-activated layer bonding.<\/li>\n<li>Diamond coating pattern preserves open areas for oil penetration.<\/li>\n<li>Available in master rolls or slit widths for winding equipment.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4>\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h4>\n<ul>\n<li>Winding layer insulation in oil-immersed transformers<\/li>\n<li>Distribution transformer foil windings<\/li>\n<li>Oil-filled reactors and similar winding systems<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4>Technical Data<\/h4>\n<div style=\"overflow-x: auto; width: 100%;\">\n<table style=\"width: 100%; border-collapse: collapse;\">\n<tbody>\n<tr>\n<td width=\"95\"><span style=\"color: #333333;\"><strong>No.<\/strong><\/span><\/td>\n<td colspan=\"2\" width=\"376\"><span style=\"color: #333333;\"><strong>Parameter<\/strong><\/span><\/td>\n<td width=\"111\"><span style=\"color: #333333;\"><strong>Unit<\/strong><\/span><\/td>\n<td colspan=\"5\" width=\"479\"><span style=\"color: #333333;\"><strong>Specification<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"95\">1<\/td>\n<td colspan=\"2\" width=\"376\">Substrate Thickness<\/td>\n<td width=\"111\">mm<\/td>\n<td width=\"95\">0.08<\/td>\n<td width=\"95\">0.13<\/td>\n<td width=\"95\">0.18<\/td>\n<td width=\"95\">0.20<\/td>\n<td width=\"96\">0.25<\/td>\n<\/tr>\n<tr>\n<td width=\"95\">2<\/td>\n<td colspan=\"2\" width=\"376\">Thickness of Single\u001esided Adhesive<\/td>\n<td width=\"111\">\u00b5m<\/td>\n<td colspan=\"5\" width=\"479\">5\u001e15<\/td>\n<\/tr>\n<tr>\n<td width=\"95\">3<\/td>\n<td width=\"214\">Tensile Strength<\/td>\n<td width=\"162\">MD<\/td>\n<td width=\"111\">N\/10\u00a0mm<\/td>\n<td width=\"95\">\u226560<\/td>\n<td width=\"95\">\u2265110<\/td>\n<td width=\"95\">\u2265160<\/td>\n<td width=\"95\">\u2265180<\/td>\n<td width=\"96\">\u2265230<\/td>\n<\/tr>\n<tr>\n<td width=\"95\"><\/td>\n<td width=\"214\"><\/td>\n<td width=\"162\">CD<\/td>\n<td width=\"111\">N\/10\u00a0mm<\/td>\n<td width=\"95\">\u226520<\/td>\n<td width=\"95\">\u226535<\/td>\n<td width=\"95\">\u226555<\/td>\n<td width=\"95\">\u226560<\/td>\n<td width=\"96\">\u226570<\/td>\n<\/tr>\n<tr>\n<td width=\"95\">4<\/td>\n<td width=\"214\">Elongation<\/td>\n<td width=\"162\">MD<\/td>\n<td width=\"111\">%<\/td>\n<td colspan=\"5\" width=\"479\">\u22651.5<\/td>\n<\/tr>\n<tr>\n<td width=\"95\"><\/td>\n<td width=\"214\"><\/td>\n<td width=\"162\">CD<\/td>\n<td width=\"111\">%<\/td>\n<td colspan=\"5\" width=\"479\">\u22652.7<\/td>\n<\/tr>\n<tr>\n<td width=\"95\">5<\/td>\n<td width=\"214\">Breakdown Voltage<\/td>\n<td width=\"162\">In the air<\/td>\n<td width=\"111\">kV<\/td>\n<td width=\"95\">\u22650.88<\/td>\n<td width=\"95\">\u22651.37<\/td>\n<td width=\"95\">\u22652.00<\/td>\n<td width=\"95\">\u22652.10<\/td>\n<td width=\"96\">\u22652.25<\/td>\n<\/tr>\n<tr>\n<td width=\"95\"><\/td>\n<td width=\"214\"><\/td>\n<td width=\"162\">In the oil<\/td>\n<td width=\"111\">kV<\/td>\n<td width=\"95\">\u22654.4<\/td>\n<td width=\"95\">\u22657<\/td>\n<td width=\"95\">\u22659<\/td>\n<td width=\"95\">\u22659.8<\/td>\n<td width=\"96\">\u226511.50<\/td>\n<\/tr>\n<tr>\n<td colspan=\"9\" width=\"1064\">Nominal Thickness: 0.08 mm, 0.13 mm, 0.15 mm, 0.18 mm, 0.20 mm, 0.25 mm, 0.30 mm, 0.38 mm<br \/>\nNominal Width: 960 mm,1000 mm, 1250 mm, 1380 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><em><b><i>Specification Confirmation\uff1a<\/i><\/b><\/em><\/strong><em><i>The values shown above represent common market options.<\/i><\/em><em><i>\u00a0<\/i><\/em><em><i>Final dimensions, thermal class, performance requirements and inspection documents are confirmed before order.<\/i><\/em><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Diamond Dotted Paper (DDP) is an electrical insulation material made from high-performance electrical-grade cable paper coated with a specially modified epoxy resin in a diamond-dot pattern.<\/p>","protected":false},"featured_media":1450,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[35],"product_tag":[],"class_list":["post-1449","product","type-product","status-publish","has-post-thumbnail","product_cat-electrical-insulation-materials","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/product\/1449","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/comments?post=1449"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/media\/1450"}],"wp:attachment":[{"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/media?parent=1449"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/product_brand?post=1449"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/product_cat?post=1449"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/prennox.com\/ar\/wp-json\/wp\/v2\/product_tag?post=1449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}