Name this
Photo #1
Sunny bundle or sun bundlers
When commissioning a SMA system what should you do when you are asked to create a password.
(We do all these the same so O/M doesn't struggle)
Password: Greenspark3!
What do you do when you have to poo
Everybody poops. Don't blow up a customers bathroom right next to their kitchen. use your judgement or take the vans somewhere.
We are installing a new service on a ranch house. We are installing a 150a service. What is the minimum size GEC should we use?
What is #6 copper or #4 al
What Greenspark core value do yo most relate to? and how?
no wrong answers (for the most part)
Believe in People
Keep it real
Find Joy
Be a Leader
Work together
Photo #2
Intersystem bonding block
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?
Checking for ground Faults. A fault means here is voltage present between home run and ground.
Why Cant 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.
Service entrance cables shall be supported at intervals not exceeding ____ inches
Hint: section 230
30"
Anchorage points for a personal fall arrest system must be able to support _____ per employee attached.
Photo #3
tandem 1p 20 square D home line breaker
This was a question on the last jeopardy no one got it right:
Give me the color order for a catv connector.
specify tab direction
striped orange, orange, striped green, blue, striped blue, green, striped brown, brown.
left to right Tab away
Your response when a customer asks "can we add a few more panels?"
You may tell him weather 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.)
We are working in a 400a service. We are installing a 200a circuit coming off that main service. What size equipment Grounding Conductor should we use?
What is #6 Cu or #4 Al
what is 80 in-lbs, 80 in-lbs, and 250 in-lbs
Photo #4
Look in your codebook give me the real name
(We just call it flex)
But its actually Liquidtight Flexible Metallic Conduit
LMFC
When commissioning a battery system, what are some crucial steps that the installer must do to ensure the system is working properly.
Simulate a power outage!!!
Other acceptable answers: make sure all communications and monitoring are working and accurate.
Your response to when a customer says, "you can remove your mask, were not worried about that in this house"
" Ok thank you for the option, it is our company policy to keep masks on inside, so I am just following the rules"
The difference between a NEMA 3R, and a NEMA 4 enclosure
Bonus: What does NEMA stand for?
3R - protection against rain, sleet, and damage from external ice formation.
4 - protection against windblown dust and rain, splashing water, hose-directed water and damage from external ice formation.
Bonus - National Electrical Manufacturer Association
To be qualified to sit for the NABCEP 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)
Photo #5
Eaton BR Quad 30a 2p
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?
Not a customer conundrum but oh well...
How do you bend exactly a 12" offset in EMT using 45 deg bends?
1.4*12=16.8
Place two marks in pencil 16.8 inches apart on the EMT bend two 45 deg bends on those marks in opposite directions
(120% rule question)
You have a 7000w inverter feeding a sub panel with a breaker. The subpanel has a 100 rated bus. The sub panel in fed from a 200a main service with a 100a breaker.
Is this ok? What issues do you see. propose a solution.
7kw inverter need a 40a OCPD.
40a breaker in 100a bus fed with 100 breaks 120% rule.
40a of back feed in the MSP is ok because 1.2*200=240.
Proposed solution(two answers accepted): tap the sub, or re feed the sub with a 80a breaker.
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.