Core knowledge
2002
What is the year our business was founded?
Type of cable and size typically used for an overhead service feed for a 200a service
What is 4/0 SEU
"You mean I have to let you into my house? I can only be home from 6am to 6:15 am to let you in?"
Our contract says that we need access during normal business hours. Can we be left with access?
Kyle has installed a Powerwall at a customer's home. On the backup loads panel there is a refrigerator. What needs to be done when the fridge circuit starts running?
YOU BETTER GO CATCH IT
1.5°C
What is the global temperature threshold we must stay beneath to avoid "unseen extreme weather events, extreme heatwaves, rising oceans, complete coral reef die off, when the planet will experience heat waves, longer warm seasons and shorter cold seasons
Jiminy Peak
What is the first ski resort in North America powered by a wind turbine and installed by yours truly?
Ground Fault
What is voltage present between home run and ground. Info: When commissioning a system an installer must check voltage on every string. They must also check for voltage from every home run to ground. Why do you do this? What is a proper reading and what is a bad reading? What does a bad reading indicate?
"Why can't you turn my system on now?"
You have not received final interconnection yet. Your current meter does not track current in both directions. We could get in trouble from the Utility by doing this.
What is the solar backfed capacity on a 125A Bus and 100A MB panel?
50 Amps
Anchorage points for a personal fall arrest system must be able to support _____ per employee attached.
We believe that locally generated clean energy is a cost-effective, market-based solution to combat climate change and an important strategy to strengthen our local community.
What is " the GreenSpark Mission Statement"?
The color order for a catv connector. Specify tab direction
What is "striped orange, orange, striped green, blue, striped blue, green, striped brown, brown. left to right Tab away"
"Can we add a few more panels?"
You may tell him whether or not they would technically fit, but you must refer to a salesmen. The system was probably designed this way for a reason. There is more to consider than space. (Inverter Loading, Fire setbacks, shading, ETC.)
A rooftop solar array is not required to include fire setbacks when?
What is the structure is uninhabitable, 2. the pitch of the roof plane is less than 2:12 (~10 degrees)
what is 80 in-lbs, 80 in-lbs, and 250 in-lbs
Three (3) Greenhouse gases
What are CO2, methane, water vapor, and nitrous oxide?
The name of the most important chapter in the Code Book
What is 690
That trench is in terrible shape, when are you going to make it like the golf course?"
Our contract says the trench will be back filled with the spoils removed from the trench. We can work on it a little more but our scope of work explains excavation will be left in "rough grade" condition.
What are (3) limitations of a single powerwall installation?
1. No Loads Over 30A can be backed up 2. Up to 7.6kWAC(nameplate) Inverter can be associated with the powerwall 3. Can not be installed in a habitable area 4. Limited to 5,000W Continuous Output.
To be qualified to sit for the NABCEP PV Installation Professional (PVIP) Board Certification exam you must first.
(This is not the only way)
-Have documented six installations with decision making role.
-OSHA 10
-58 approved training hours. (PV101/202 qualify you)
SED's first line of work?
What is installing MET towers? Data towers to collect site information aka meteorological evaluation towers
What size breaker would you install with a 7.0kw inverter? How did you get there?
7000/240v=29.17A
29.17A*1.25=36.46A (continuous duty correction)
Then round up to nearest breaker size.
Bonus: What is continuous duty mean?
"I don't have to mow around my ground mount, do I?"
"yes, mowing help keeps the creepy crawly bugs and rodents away, and mowing keeps the vegetation from shading the modules, shading is not good!"
When is module level Rapid Shutdown (AP Smarts) needed on a ground mounted array?(Hint: NEC 690.12)
When the BOS / DC Conductors are running through a habitable building for over 3'
How does a GFCI work? (Explain it in terms of current flow) What does it stand for? What is it intended to do? partial credit awarded.
Ground fault circuit interrupter.
Intended for the protection of personnel.
This device monitors the amount of current flowing through the L1 as well as the current through the grounded conductor (Neutral). if it senses a difference it will trip indicating current has gone somewhere it was not intended to go.