69kv Composite Rubber Line Post Insulator with The Vertical Clamp

Product Description  Wuhan Line Power offer composite line posts for transmission line applications of various voltage classes up to and including 330kV. All of our insulators equip a one-piece, whole injection. This housing is formed onto the core by a compression molding process. Our design, manufacture, testing and quality control provide a unique products that is unparalleled.We have exported more than thousands of composite vertical line post insulators all over the world, just like New Zealand, Australia, Dominica Republic, Czech, etc, below are some of drawings. The first one is vertical trunnion with base, the second one is vertical trunnion with long bolt, the third one is no base.  Type:Vertical Line PostMinimum Order Quantity:350 pcsPrice:NegotiablePackaging Details:plywood case, fumigated solid wood caseDelivery Time:45~50 days EX-worksStandard:IEC 61952, ANSI C29.1RAW MATERIALS:End FittingsCoreSheds and HousingHot dip galvanized cast iron or cast steelEpoxy & Glass fiber(ECR is available)HTV Silicone RubberMin. thickness of the galvanization: 86μmDiameter(mm): Φ38, Φ40, Φ55, Φ70, Φ90, Φ120Color: Grey, RedTECHNICAL DATA (catalog):Typical Line Voltage(kV)Section Length(mm)Dry Arcing Distance(mm) Leakage Distance(mm)Specified Cantilever Load(SCL, kN)Max. Design Cantilever Load(MDCL, kN)1min. Power Frequency Withstand Voltage(Wet)(kV)Lightning Impulse Withstand Voltage(kV)69676±1551714539.56.2175370Notes:1. All section lengths are based on vertical & base or bolt end fittings.2. Below 220kV electrical data shown for composite line post insulators without corona rings and mounted vertically. Wuhan Line Power recommends corona rings to be installed at 220kV and above.3. Additional section lengths and creepage distances are available. Contact sales agency for details.4. All dimensions, tolerances and tests are within allowable IEC standards or ANSI standards.5. All dimensions are in millimeters(mm). If in inches and pounds, please specify.6. We can design according to the end user's requirements.Product structure and advantagesOur company specializes in the production of composite insulators for transmission lines. The main structure is composed of rubber, epoxy glass fiber core and metal end fittings. Compared with similar ceramic and glass insulators, silicone rubber insulators have the following advantages:(1) Small size, light weight (1/7~1/10 times that of ceramic insulators with the same voltage), good elasticity of the shed, not easy to break, convenient transportation and installation, and economical.(2) High mechanical strength. FRP rods have high tensile strength, which is 5-10 times that of ceramic materials. The cross-section of the core material is small, the product is small in size, light in weight, and high in tensile strength. It is easy to manufacture large-tonnage insulators above 300KN.(3) High antifouling performance and good aging resistance. The silicone rubber injection molded shed has good hydrophobicity and mobility, which makes the insulator have high anti-pollution flashover voltage and good electrical corrosion resistance.(4) Easy installation and maintenance, which can greatly reduce maintenance costs caused by power outages and manual labor intensity.(5) The production process is simple and the delivery time is short.  Production Process (Part)  FEATURES: The silicone rubber housing of Composite Line Post Insulator were taken shape by whole injection. It has good hydrophobicity, hydrophobicity migration and soil resistance, as well as excellent electrical insulation properties and aging resistance, which could prevent effectively those accidents of pollution flashover so as to ensure the safe running of high voltage transmission lines. The modified ECR fiberglass reinforced epoxy resin rod is used as it has good resistance to high temperature, stess corrosion & acid attack, as well as fine damping action, high tensile strength (> 1200Mpa) and resistance to creep and fatigue failure, which effectively ensure the internal insulation quality and mechanical stength of insulators.End fittings are crimped onto fiberglass rod with voice-operated displacement type crimper. The insulators with this crimping technique have high mechanical strength and small dispersion. Taking the most advanced automatic overall injection moulding technic and connection method of crimping for production and assembling, and the whole crimping procedure controlled by computer and the crimping result monitored by ultrasonic detector to assure each product is qualified.  ItemRequirementMeasured ValuedVisual examinationFuchsine,grey or white, no obvious mechanical admixture. Vulcanized sillion rubber with dense and smooth cutting surface.OkHardness (shore A)≮5065~70Tensile strength  (Map)≮44~6Failure elongation  (%)≮150≮180Tearing strength (kN/m)≮10 (right angle sample)12~15Volume resistivity (Ω.m)1X10123~8X1012Puncture strength (kV/mm)Alternating current ≮22≮30Tracking and erosionTMA4.5,erosion depth≯2