Hi Bob, I would rather it be worded "maximum normal operating voltage". Maximum operating voltage would be the recommended BULK voltage for the battery type being utilized. Equalization is a maintenance procedure, which is why it calls for separate listing. It must also include polarity of grounded conductor.
Eric _____________________________________________________________________________________ Eric Bentsen | Schneider Electric | Solar Business | UNITED STATES | Technical Support Representative Phone: +(650) 351-8237 ext. 001# | Email: [email protected] | Site: www.schneider-electric.com/solar | Address: 250 South Vasco Rd., Livermore, CA 94551 *** Please consider the environment before printing this e-mail From: "Bob Clark" <[email protected]> To: "'RE-Wrenches'" <[email protected]> Date: 06/10/2013 08:08 PM Subject: [RE-wrenches] NEC 690.55 - "maximum operating voltage" Sent by: [email protected] RE_Wrenches: Can someone tell me what is being referred to in NEC 690.55 when it says “Photovoltaic power systems employing energy storage shall also be marked with the “maximum operating voltage, . . .” ? We have an off-grid system which employs energy storage [i.e.; batteries]; so I need to know what exactly is referred to when this section mentions “maximum operating voltage” so I can put it on a sign. Bob Clark SolarWind Energy Systems, LLC ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. ______________________________________________________________________ _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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