Flashcards in PV Deck (9):
Both residential. & commercial photovoltaic operate on same principle & both pose similar dangers, the greatest hazard is ?
Most PVs are made of?
Integrated as well as flush mounted arrays may be difficult or impossible to detect at night time hours ?
The use of roof top disconnects should not be relied upon?
True. Mainly installed in order to perform maintenance on the system.
Hose streams should not be applied directly onto energized PV system components. A fog nozzle from a distance and set at a 30 degree fog. **straight stream & foam shall not be used because they are excellent conductors.
Lithium ion batteries - dry chem or foam has proven ___ ?
Effective on battery fires.
Pv systems do not produce electricity at night ?
True. However lightening flashes occurring at night can energize PV system.
On blds with sloping roofs PV arrays will generally be installed on the __ & __ facing sides?
South & west facing sides