Tools
What part attaches the base to the rail?
L foot
The cost of electricity is measured in what units?
***Dailyyy Doublee***
kWh
How far above the roof should the ladder extend?
3 ft
Greater than or equal to 3 ft
Series connections increases what in a PV System?
Voltage
Volts
The interconnection of a PV system is approved by who?
the Utility
Attachment mounts are screwed in with what?
Lag
How do you calculate array layout width ?
Add module width, mids and ends
What is the safety glasses rating for construction
ANSI Z87
There are 4 concrete holding a system on a roof... What kind of system is this?
Ballasted system
What does BOS stand for ?
Balance of Systems
What does a conduit connector do?
Connect conduit to a box
How many watts is a HP
746W
What is the Hard hat class rating for residential solar installation ?
Class G
What is the purpose of a bypass diode?
To limit the effects of shading on a module,
Replaces voltage loss from shading
What component is installed between the main service panel and the inverter?
AC Disconnect
Name the tool used for cleaning conduit cuts
Reimer
How long do PV modules manufactures generally warranty the modules for?
10 Years material 25 years performance
What are the 3 parts to the fall arrest system?
Anchor, Lifeline ( yoyo) , and harness
what is the least amount of current that would contract someone's muscle and they cant let go?
*** Daily Doubleee***
10-20mA
The approval of the PV system plans set are done by who?
AHJ
3 most often used conduit types
*** Dailyyy Doubleee***
EMT, ENT, Flexible or liquid tight (FMT)
A 12V light bulb is left on for 13 hrs at 1.5 A with a 12 V battery. How many Ah are used?
19.5Ah
For every hazard there is a what?
*** Dailyyy Doubleee***
A control
What is the simplest type of PV System?
Direct Coupled System
What are the 5 steps for an array layout?
***Daily Doubleee***
Setback, rafters, corners, rails, attatchments