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Flashcards in PV Deck (9):
0

Both residential. & commercial photovoltaic operate on same principle & both pose similar dangers, the greatest hazard is ?

DC shock.

1

Most PVs are made of?

Silicon

2

Integrated as well as flush mounted arrays may be difficult or impossible to detect at night time hours ?

True

3

The use of roof top disconnects should not be relied upon?

True. Mainly installed in order to perform maintenance on the system.

4

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.

True

5

Lithium ion batteries - dry chem or foam has proven ___ ?

Effective on battery fires.

6

Pv systems do not produce electricity at night ?

True. However lightening flashes occurring at night can energize PV system.

7

On blds with sloping roofs PV arrays will generally be installed on the __ & __ facing sides?

South & west facing sides

8

Dry chem or foam effective on battery fires?

True