What is the FIRST step a solar worker should take before performing any maintenance on a PV system?
Pv Safety
Question · Easy
OSHA fall heights, to scale
Short
Which type of personal protective equipment (PPE) is MOST important when working on energized PV circuits?
Gear such as a hard hat, safety glasses or arc-rated clothing that a workplace hazard assessment shows a worker needs.
Hazard controls
Guess the Term
Chapter 1: Safety & Job Site Hazard Prevention
1.1 OSHA Regulations, Job Site Safety Standards, and Personal Protective Equipment
Study guide
Why can a PV module NOT be fully de-energized simply by turning off the inverter?
Question · Medium
Read the clue and guess the term in 6 tries.
Game
What is the primary purpose of an equipment grounding conductor (EGC) in a PV system?
Procedure that disables machinery so stored energy cannot start it while a worker services or maintains it.
Hazardous energy
According to OSHA fall protection standards, at what height above a lower level must fall protection be used during PV installation on a roof?
What is the purpose of a rapid shutdown system on a PV installation?
Device that cuts power when the current leaving and returning on a conductor differs by about five milliamperes.
Electrical safety
1.2 Fall Protection Systems, Ladder Safety, and Roof Access Protocols
Which of the following is an arc fault hazard specific to PV systems?
Swap tiles to line up three of the same term.
Term Match
A PV installer notices a cracked module during installation. What should they do?
Hazard that guardrails, safety nets or a personal arrest system protect a worker against at six feet or more above a lower level.
Working at height
What type of fire extinguisher is appropriate for an electrical fire at a PV installation?
What is the main reason PV systems require warning labels and placards at the point of utility connection?
Group of photovoltaic modules wired in series so that all of them must carry the same current.
PV components
1.3 Electrical Safety, Arc Flash Hazards, and Lockout/Tagout (LOTO) Procedures
What is the maximum voltage threshold for NEC rapid shutdown requirements on conductors more than 1 foot from the array in 2026?
Question · Hard
Flip two cards at a time to find matching terms.
Term Pairs
Which safety organization establishes the Permissible Exposure Limits (PELs) for workplace hazards that apply to solar installers?
Single photovoltaic device, usually producing about one or two watts.
What is the primary electrical shock hazard when working on a string of PV modules connected in series?
What safety device is required by the NEC to protect against DC arc faults in PV systems?
Set of photovoltaic modules wired in series and parallel so they work as one DC generating unit.
Chapter 2: Solar Resource, Sun-Earth Geometry & Site Assessment
2.1 Solar Radiation Principles, Irradiance vs. Insolation, and Peak Sun Hours
When working on a rooftop PV installation, what is the minimum distance that must be maintained from overhead power lines according to OSHA standards?
Find five hidden terms in a grid of letters.
Term Search
What hazard does a ground fault detection and interruption (GFDI) device protect against in a PV system?
Electrical power measure equal to one joule per second.
Electrical concepts
Which heat-related illness is a medical emergency that requires immediate treatment and a call to 911?
What is the primary purpose of a disconnect switch located near the PV array on a rooftop?
Third-party financing deal in which a host buys the electricity an on-site system produces for a set period.
Financing options
2.2 Sun-Earth Geometry, Solar Angles, Sun Path Charts, and the Solar Window
An installer is working on a roof and notices dark clouds approaching. What is the correct safety protocol?
Trades Exam Prep Podcast
Listen on Spotify
Podcast
What does NFPA 70E primarily address in relation to PV system work?
Financing repaid through a special charge added to a building's tax bill.
What is the photovoltaic effect?
Pv Core Knowledge
What type of semiconductor material is most commonly used in residential PV modules?
Module rating basis, also abbreviated SRC, that fixes irradiance at 1,000 W/m2, cell temperature at 25 C and an AM1.5 spectrum.
Module specifications
2.3 Site Assessment, Orientation, Tilt, Azimuth, and Shading Analysis
What happens to the voltage output of a crystalline silicon PV module as its temperature increases?
What does STC stand for in the context of PV module ratings?
Module rating taken at open circuit on an open rack under 800 W/m2, 20 C air and 1 m/s wind.
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