REC PEAK Energy Series Installation Manual

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REC PEAK Energy Series Installation Manual Manual pdf 8 page image

< 60 mm >< 30 mm >REC Peak Energy Series Installation Manual - IEC 61215/61730Rev L - 09.14 Ref: NE-06-03-L88grounding dimensions and wire fastening torque:Cross section[mm2]Type Torque [Nm]13.3 - 21.2 stranded 3.98.4 stranded 3.42.1 - 5.3 stranded / solid 2.8vii) groundinglocal regulations may require grounding of the panels. Check all applicable requirements before beginning installation. where grounding isnecessary, it must be done using an electrical connection from the panel frame:• suitable grounding lugs must be used.• grounding cable size should be between 2.1 mm² - 21.2 mm².• attach grounds to the grounding holes in the panel frames.• Fix lug to the frame using a star washer and lock nut, ensuring a conductive connection (fig. 8).• Place the star washer between the frame and the nut, using a 5 mm diameter stainless steel bolt and locking nut to mount the lug to thepanel frame and tighten according to the manufacturer’s recommended torque.To avoid galvanic corrosion, stainless steel fastening materials are preferred, however galvanized or hot dipped zinc platedfasteners are equally suitable.ConnECtIons anD ConnECtoRsIn order to ensure durable and safe connections between panels and bos equipment, the following instructions must be followed in orderto protect the electrical connections from the elements. More detailed information is given in the guide to best Practice - Connections andConnectors which can be found via the REC website Download Center (www.recgroup.com/downloads).ConneCtors• Connectors must be securely joined to each other according to the manufacturer’s instructions. REC explicitly excludes the cutting ofcables and replacement of connectors. If this causes an issue for a particular site, contact REC via www.recgroup.com for further advice• the use of any chemicals or lubricants on the connectors or contacts must be carried out in line with the connector manufacturer’sinstructionsProteCtIng tHe Cables• to prevent stress on the junction box casing, ensure the cable exits the junction box in a straight line before any bend in the cable.• the cables on the REC Peak Energy series have a minimum bending radius of 30 mm to avoid damage to the insulation (Fig. 9)• Ensure cables do not hang loose where they may be damaged through friction or stress, e.g., caused by wind or grazing animals• shield connectors from falling or dropping water by locating them directly beneath a panel• Cables must be firmly secured to the structure, without overtightening, as this can deform the cable insulationEnsure the drainage holes are not covered by the mounting structure.vi) Drainage holesEach corner of the panel frame has small drainage holes (fig. 7) to allow water caused by rain or snow melt to exit the frame easily and tominimize damage caused by freezing and thawing. these must not be used for mounting the panel.Fig. 7: Drainage holesGRGRgroundingcablestar washerFig. 8: RecommendedgroundingFig. 9: Minimum bend radius of 30 mmseCurIng Cables anD ConneCtors• when securing the connector, place it away from the mounting structure with sufficient air circulation all around. this allows theconnector to dry effectively and avoids the risk of damage or degradation of the connection• good practice is to secure the cable either side of the connectors, ensuring no stress is exerted on the connector casing or cable entryTo enable correct cooling and drying of the connectors, do not add extra protection to the connector, e.g., heat shrink, grease ortape