PV 2

Question 1

A static structural load due to the weight of accumulated snow

Answer 1

Snow load

Question 2

The estimated temperature of a module operating in a specific mounting system design

Answer 2

Installed nominal operating cell temperature

Question 3

The maximum value of a 3 sec gust at 33’ (10m) elevation, which is used in wind loads calculations

Answer 3

Basic wind speed

Question 4

A dynamic structural load due to the weight of temporary items and people using or occupying the structure

Answer 4

Live load

Question 5

A dynamic structural load due to periodic motion

Answer 5

Vibration load

Question 6

The addition of lumber under a roof surface and across trusses or rafters as supplemental structural support

Answer 6

Spanning

Question 7

A type of fixed tilt array mounting system where modules are affixed directly to an existing finished rooftop or other building surface with little or no space between a module and the surface

Answer 7

Direct mount

Question 8

An array mounting system that uses no electrical means to automatically direct an array mounting towards the sun

Answer 8

Passive tracking mount

Question 9

A static structural load due to the weight of permanent building members, supported structure, and attachments

Answer 9

Dead load

Question 10

The condition when a vibration frequency matches the fundamental frequency of the structure

Answer 10

Resonance

Question 11

An attachment method that relies on the weight of the array, support structure, and ballasting material to hold the array in position

Answer 11

Self ballasting

Question 12

An array mounting system that uses electric motors and gear drives to automatically direct the array towards the sun

Answer 12

Active tracking mount

Question 13

An array mounting system that permanently secured modules in a non-movable position at a specific tilt angle

Answer 13

Fixed tilt mounting system

Question 14

a type of fixed tilt array mounting system where modules are supported by a structural parallel to and slightly above the roof surface

Answer 14

Stand-off mount

Question 15

A type of array mounting system where modules are installed at an elevation on a pedestal

Answer 15

Pole mount

Question 16

A device that prevents conductors or devices from reaching excessively high temperatures under high current loads by opening the circuit

Answer 16

Over current protection device

Question 17

A diode used to pass current around, rather than through, a group of PV cells

Answer 17

Bypass diode

Question 18

A conductor connecting exposed metallic equipment, which might inadvertently become energized, to the grounding electrode conductor

Answer 18

Equipment grounding conductor (EGC)

Question 19

The current that a conductor can carry continuously under the conditions of use without exceeding its temperature ratings

Answer 19

Ampacity

Question 20

A circuit breaker that allows current flow in either direction

Answer 20

Back fed breaker

Question 21

The automatic opening of conductors involved in a ground fault

Answer 21

Ground fault protection

Question 22

The maximum over current that an over current protection device is able to stop without being destroyed or causing an electrical arc

Answer 22

Interrupting rating

Question 23

The circuit connecting the PV source to the rest of the system

Answer 23

PV output circuit

Question 24

A conductive rod, plate, or wire buried in the ground to provide a low resistance connection to the earth

Answer 24

Grounding electrode

Question 25

The circuit connecting a group of modules together and to the common connection point of the DC system

Answer 25

PV source circuit