{"id":3401,"date":"2026-01-05T17:15:00","date_gmt":"2026-01-05T09:15:00","guid":{"rendered":"https:\/\/www.wolunelectric.com\/?post_type=product&p=3401"},"modified":"2026-06-02T12:00:44","modified_gmt":"2026-06-02T04:00:44","slug":"insulators-lk-70-20-iii-lkk-70-20-iii-20kv-70kn-linear-suspension-rod-polymer-insulators","status":"publish","type":"product","link":"https:\/\/www.wolunelectric.com\/ar\/product\/insulators-lk-70-20-iii-lkk-70-20-iii-20kv-70kn-linear-suspension-rod-polymer-insulators\/","title":{"rendered":"Insulators LK 70\/20-III, LKK 70\/20-III 20kV 70kN Linear suspension rod polymer insulators"},"content":{"rendered":"

Product Overview<\/h2>\n

Linear suspension rod polymer insulators of the LK 70\/20 and LKK 70\/20 types are designed for the insulation and fastening of wires and ground wires of overhead power lines and busbars of switchgear at power plants and AC substations with voltages up to 20 kV.<\/p>\n

These insulators can be used in both support and tension insulator hangers. LKK insulators , which are resistant to acid corrosion, are manufactured using an ECR fiberglass rod , which is used to prevent insulator failure due to acid corrosion of the rod in cases of depressurization of the protective shell due to vandalism or careless handling. Thus, LKK insulators offer increased resistance to vandalism and, accordingly, greater reliability.<\/p>\n

<\/h2>\n

Key Technical Parameters<\/h2>\n

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\nElectrical data
\n(1)Nominal Voltage 20kV
\n(2)Lightning Impulse Withstand
\nVoltage (1.2kV\/50\u03bcs Peak value) 75kV
\n(3)Dry 1 min Power Frequency Withstand
\nVoltage(rms) 42kV<\/p>\n

Mechanical data
\n(1)Specified Mechanical Load 70kN<\/p>\n

Dimensions
\n(1)Section Length 438\u00b110mm
\n(2)Dry Arc Distance 237\u00b110mm
\n(3)Creeapage Distance \u2265575mm<\/p>\n

Insulator Color:Gray
\nStandard: IEC 61109 etc.<\/p>\n

Performance Characteristics<\/h2>\n

Strong anti-pollution ability, suitable for operation in heavily polluted regions.
\nLight weight, simplified transportation and installation procedures.
\nHigh mechanical tensile strength, ensuring stable operation under rated load.<\/p>\n

\u0631\u0633\u0645 \u0627\u0644\u0623\u0628\u0639\u0627\u062f<\/h2>\n

\"fxbw4<\/p>","protected":false},"excerpt":{"rendered":"

The LK 70\/20-III and LKK 70\/20-III are 20kV 70kN composite suspension insulators designed for overhead power lines.<\/p>\n

Manufactured with high-quality silicone rubber sheds and fiberglass core rods, they provide excellent mechanical strength, superior pollution resistance, low maintenance, and long-term outdoor reliability.<\/p>","protected":false},"featured_media":3406,"template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"LK 70\/20-III & LKK 70\/20-III 20kV 70kN Polymer Suspension Insulator | Composite Line Insulator","_seopress_titles_desc":"LK 70\/20-III and LKK 70\/20-III are 20kV 70kN polymer suspension insulators featuring silicone rubber housing and fiberglass core. Lightweight, pollution-resistant, and ideal for overhead transmission and distribution lines.","_seopress_robots_index":""},"product_brand":[],"product_cat":[82,45],"product_tag":[],"class_list":{"0":"post-3401","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-russia-type-products","7":"product_cat-high-voltage-insulator","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product\/3401","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/media\/3406"}],"wp:attachment":[{"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/media?parent=3401"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product_brand?post=3401"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product_cat?post=3401"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/ar\/wp-json\/wp\/v2\/product_tag?post=3401"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}