which electricity meter is used to record the electricity produced by a PV installation?
import meter
export meter
generation meter
tariff meter
which electricity meter is used to record excess electricity produced by a PV installation, which is sold on to the GRID?
import meter
export meter
generation meter
tariff meter
which meter is used to record electricity consumed from the GRID?
utility meter
export meter
generation meter
tariff meter
what is the function of an inverter in a PV system?
it converts DC electricity into AC
it converts AC electricity into DC
it converts sunlight into electricity
it measures the amount of electricity produced
when excess electricity produced by a PV system is sold back to the DNO, what tariff would be payable to the owner of the PV system?
pay-back tariff
generation tariff
feed-in tariff
PV tariff
when a PV system is connected to the GRID but electricity produced is not sold to the DNO, which tariff is payable to the owner of the PV system?
generation tariff
feed-in tariff
no tariff would be paid
export tariff
what is used to isolate the pv arrays from an installation, prior to any maintenance being carried out on PV modules?
DC isolator
AC isolator
switching off the inverter
switching off the main switch in the consumers unit
which value represents the EU panel generation factor - used when calculating the quantity of PV panels required for an installation?
3.92
2.93
9.32
2.39
PV installations that connect to the GRID can connect to either a 'spare' way in the main installation consumer unit, or be spliced into the main DNO 'tails' using....?
henry connecting blocks
hendrey connecting blocks
henley connecting blocks
henery connecting blocks
PV inverters are CLASS 2 equipment. This means .....
they require any metalwork to be earthed
they have no exposed conductive parts
they operate at 'mains' voltage levels
they work on AC and DC
a PV system that is to connect to the mains GRID, must be installed by an accredited member of ....
IET
MCS
DTI
OFGEM
installers of domestic PV systems must be accredited with .....?
part M of the building regs
part P of the building regs
part F of the building regs
part D of the building regs
identify the colours of the conductors for the AC side of a PV installation?
red and black
brown and blue
brown and grey
black and white
identify the colours of the conductors for the DC side of a PV installation?
red and black
brown and blue
brown and grey
black and white
identify the name of the metallic mouldings used to weather-proof a roof that has PV panels integrated into it.
lashings
flashing
noggins
battening
'string fuses' are installed when a PV string contains more than ..?... modules
2
4
6
10
what instrument is used for conducting a Isc test?
low-ohms meter
insulation-resistance tester
clamp meter
voltmeter
what instrument is used for conducting a Voc test?
low-ohms meter
insulation-resistance tester
clamp meter
voltmeter
which test requires the positive and negative conductors from the PV to be connected together during the test?
Voc
Isc
insulation-resistance
polarity
state the dc test voltage for an insulation-resistance test on a PV array with an operating voltage not exceeding 120v DC
500v
250v
120v
1000v
state the dc test voltage for an insulation-resistance test on a PV array with an operating voltage up to 600v DC
500v
250v
120v
1000v
state the minimum value of insulation-resistance acceptable for a PV array with an operating voltage up to 600v DC
0.25M ohms
0.5M ohms
1M ohm
2M ohms
state the minimum value of insulation-resistance acceptable for a PV array with an operating voltage not exceeding 120v DC
0.25M ohms
0.5M ohms
1M ohm
2M ohms
in addition to any certification documentation for the existing 'mains' installation, state the minimum number of documents to be completed for the PV installation alone.
one document
two documents
three documents
four documents
during insp/testing of a PV installation, which test would be carried out with a voltmeter at the terminals of the DC isolator?
Vt test
Voc test
Vsc test
Vin test
during insp/testing of a PV installation, which test would be carried out with a clamp-meter?
Isc test
Voc test
Vsc test
Ioc test
during insp/testing of a PV installation, which test instrument is used to measure the quantity of sunlight falling on the PV panels?
irradiance meter
illumination meter
lux meter
light meter
when carrying out a Voc test of PV modules, it is necessary to make a measurement of the?
current
wattage
temperature
power
What is meant by the abbreviation REA ?
renewable energy association
replacement electricity authorised
revised electrical assessment
re-instated electrical apparatus
which test must NEVER be conducted across the terminals of a PV module/array?