Need a Solution that works? McCune Works.
world faces a “Convergence” of multiple crisis in disasters, food security, mass
relocations, environmental stress, climate change and energy shortages; as
people need a solution that works. McCune Works!
Design, Research & Development in Innovative Green Products, Building Methods, Materials, &
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McCune Solar Works, LLC
A McCune Works, Inc.
“To operate within a framework of social and environmental responsibility to
develop and manufacture new products, building designs, materials and methods
for affordable, low maintenance energy efficient, high quality solutions
for distribution worldwide.
We will maintain a design ethic consonant with our planet and the
world around us, respectfully coexistent with the forces of nature.”
Its not enough to
comply with the new Rapid Shutdown NEC 2014 requirements
30 volts or less does not provide the safety necessary for Firefighters
Zero Volts is the requirement for safety
PV Stop shutdown is Zero Volts within 10 seconds
Shutdown of PV Systems on Buildings PV system circuits installed on or in
buildings shall include a rapid shutdown function that controls specific
conductors in accordance with 690.12(1) through (5) as follows.
(1) Requirements for controlled conductors shall apply
only to PV system conductors of more than 1.5 m (5 ft) in length inside a
building, or more than 3 m (10 ft) from a PV array.
(2) Controlled conductors shall be limited to not more
than 30 volts and 240 volt-amperes within 10 seconds of rapid shutdown
(3) Voltage and power shall be measured between any two
conductors and between any conductor and ground.
(4) The rapid shutdown initiation methods shall be labeled
in accordance with 690.56(B).
(5) Equipment that performs the rapid shutdown shall be
listed and identified.
PV Stop Control Center
Real Time Status Screen
Off Status Report
PV Stop J-Box
We have a number of J-Box Module Level Control Electronics solutions for module
manufacturers requiring no impact on production cycle time.
Custom design upon request
Grid/Micro Grid Systems