About Double-hoop photovoltaic bracket purlin installation
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6 FAQs about [Double-hoop photovoltaic bracket purlin installation]
What is solar panel support with Z profiles and purlins brackets?
Solar power systems use the sun’s rays as a high-temperature energy sources to produce electricity in a thermodynamic cycle. Thereby we have to introduce some solar panel support with Z profiles and purlins brackets, which are hot galvanized steel material for use in long time with better surface and the best cost during the system construction.
What size bridging is required for a purlin roof?
Alternative hole sizes, shapes and centres are possible, subject to enquiry. Stramit recommends that bridging be installed such that the maximum unbraced length is 20 x D (where D is the purlin web height), or 4000mm whichever is the least. In addition to enhancing purlin performance this requirement assists with the erection of roof sheeting.
Do I need a bridging inspection before installing a purlin?
It is imperative that this be resolved immediately and prior to installation. Purlins and Girts supplied by Stramit will be made from high tensile galvanised steel. Final inspection of the installed purlin, girt and bridging system should check for correct bolting of laps and that bridging is correctly in place.
What is the bolt strength of a roof purlin?
The bolt strength grade (4.6 or 8.8) should be specified by the design engineer to conform with the Stramit® Purlins, Girts & Bridging – Product Technical Manual. Loads to be suspended from roof purlins must be accounted for in design. No allowance is included in the capacity tables.
Why do large purlins require large bridging systems?
Large purlins require large bridging systems due to the larger spans and heavier loads encountered. These bridging components are conventional in nature but on a much larger scale. Generally the bridging channel is a C150 section firmly bolted to end plates to suit the particular purlin concerned.
How should a purlin flange be connected?
Any such loadings must be connected to the purlin web by using hangers or other means. Never attach loads to the purlin lips. Attachments to the purlin flange must be within 25mm of the web. Connection design should follow the rules within AS/NZS4600, including a check on bearing of the purlin. Loads should not be suspended from wall girts.