Product Description
Product Description
Product DescriptionTerminal Box Knockout testerJunction box Orifice cover strike off testing machinetesting equipment for pv module StandardAccording to IEC 61730:2-2004 and EN 168 purpose Removable hole covers in the walls of module terminal enclosures (knockouts)shall remain in place under nominal force application and also be easily removed for the field appliction of permanent wiring system components specifications 1. 38mm length,diameter 6.4mm flat-heat circular shaft 2.Connection box clamp3.Weights automatic lift and fall device Specimen conditional :With a knock-off orifice’s polymer connection box sample will in the temperature 25ºC being test .With another knock-off orifice’s polymer connection box sample will in the -20±1ºC Placed 5hAfter placed , the connection box should repeat above testing immediatelyTest procedure as following :First , use the shortest Length 38mm,Diameter 6.4mm flat-head circular shaft against knock-off cover apply 44.5N force,continue apply force 1minApply force direction with orifice cove plane vertical , its add maybe cause knock-off orifice cover move place , after 1 h , measurement orifice cover with connection box wall dislocation Second , use a screw knife as chisel , Open the knock-off cover , knockoff after allow the screw knife blade edge along already opened inner wall scratch a circle. In order to clear the edge’s debris Third , For another two knock-off cover repeat the first step and second step If connection box’s knock-off cover can have more diameter trepan , when small diameter knockoff cover is opened , big diameter knock-off cove should not move , qualified determination image show Company Information Dongguan Hong Tu Instrument Co.,Ltd , specializes in developing and producing sales of testing instrument for helmet ,photovoltaic , leather ,footwear ,luggage ,sport equipments, metal and rubber , we have firm connections and full cooperation from China's National Third-part Quality Inspection and Notarization Center on producing and developing high-precision testing machines We treasure the value of good quality , reasonable price and efficient service with customer satisfaction. we expert ourselves in providing our customers the best suitable testing designs and high quality testing machines to make you the utmost profit Please feel free to contact us for any enquires from our wide range of productsOur Services1.High quality and best after-sell service 2.100% quality inspection before delivery 3.Managment Innovate 4.Strong R & D team 5.Can handle customers's feedback problems and doubt timely 6.Our testing machine have one year Warranty time Exhibition Clients visit photos Package show Business Card
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