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Saving Install Cost by Using Connectors as Means of Disconnect

February 5, 2016 By

HIQ imageAdditional AC and DC disconnects add cost and complexity to PV systems and introduce several points of potential failure, thus reducing reliability. In the US disconnecting means are mandated by the governing electrical code. Several cents/Watt can often be saved in installation cost if separate disconnect boxes can be avoided in favor of integrated disconnects used by inverter manufacturers such as HiQ and Enphase. But is this code compliant? This paper addresses the regulatory requirements governing disconnecting means required for the replacement and servicing of PV inverter equipment. Specifically, the use of connecters as the required means of disconnect is detailed. It then shows that HiQ Solar TrueString™ inverters have been tested as part of their certification to allow this.

 

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Filed Under: HiQ Solar, PV, Solar, White Papers

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