AC Wiring
What must be installed on service equipment so no uninsulated, ungrounded service busbar or service terminal is exposed?
Barriers (Yellow ding dongs)
What does UFO stand for?
Universal Fastening Object
What value should a UFO be torqued at?
80 in-lbs minimum
What are 2 types of metal roof?
Standing seam, Trapezoidal, corrugated, pro-panel
What is the SOP to manage wire to a solar panel?
Wire clips/Heycos
When wiring a solar production meter, the wires coming from the inverter land on which side?
Line Side
Why is there yellow lock-tite on UFOs?
To help the T-bolt cam in the rail channel
What is one reason it’s important to have spacing between mods?
Air flow/convection, thermal expansion of mods, future installation of snow guard
The tilt-up legs on a flat roof assembly are tightened to what value?
250 in-lbs
What size is the wire on a DC module?
12 AWG
What is required within 3 ft of a Rapid Shutdown Switch?
Label: Rapid Shutdown Switch for Solar PV System
What is the required depth of a lag into a rafter for FlashFoot2?
2.5" of the 4.75" lag should be embedded in the rafter
What is the preferred ratio of rail spacing for a mod?
25% from the end of the mod
What S5! bracket is designed to fit a trapezoidal seam on a metal roof?
Proteabracket
What is the minimum size of bare copper to be protected from physical damage?
6 AWG
What is the minimum size ground wire for a 40 amp EV circuit?
10 AWG
What is the minimum and maximum distance the lag hole on a FlashFoot2 can be from the edge of the shingle it’s under?
1”-3”
What is the minimum distance conduit can be above the surface of a roof?
7/8" (310.15(b))
Where do you find stand-off spacing requirements for each job?
Engineering Letter in the customer folder
How often do you have to support/strap flexible metal conduit?
12” from box and then every 4 ½’