voltage
Let an agent explain voltage by definition, measurement and everyday values, and route electric shock and electrical hazards to emergency help and qualified electricians.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain voltage by definition, measurement and everyday values, and route electric shock and electrical hazards to emergency help and qualified electricians.
The difference in electric potential between two points, which drives electric current through a circuit, measured in volts (V); examples include battery voltages, mains supply of about 230 V in Europe and 120 V in North America, and high-voltage transmission lines.
What it is for: Electrical engineering, electronics and everyday power use.
It can be explain voltage, current and resistance; measure voltage safely with a meter; check mains voltage and plug compatibility when travelling; recognise electrical hazards.
Distinguishing features
Potential difference
Measured in volts
AC or DC
Higher voltages are more hazardous
What it looks like
Not visible; shown on meters, labels and warning signs.
Physical character
nominal mains voltage: 230 (Europe) or 120 (North America) V - AC supply
How it is recognised
Values in volts on labels
High voltage warning signs
Current is measured in amperes
Related models
is a kind of - category
is measured in - unit
drives - effect
is measured by - instrument
In practice
Families and kinds
DC voltage
AC voltage and RMS values
low, extra-low and high voltage
open-circuit voltage
thermoelectric voltage
Identifiers
SI unit volt (V) derived unit
Standards and regulation
IEC 60038 standard voltages
EU Low Voltage Directive
National wiring regulations
Failure modes and hazards
Electric shock and burns
Using devices on the wrong voltage
Untrained work on mains wiring
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.voltage
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Concept What it is.
Potential difference drives current.
Define
Definition.
Define
Definition.
- What is voltage, and how does it relate to current and resistance by Ohm law? definition
- What is the voltage in this circuit? measurement
AC and DC
Types.
AC and DC
AC and DC.
- How do AC and DC voltage differ? definition
- What does RMS mean? definition
Measurement Meters.
Measure safely.
Meter
Using a multimeter.
Meter
Measuring voltage.
- How is voltage measured safely with a multimeter? action
- Which meter category rating is needed? provenance
Travel
Mains abroad.
Travel
Mains abroad.
- What mains voltage and plug type are used in this country? provenance
- Does the device accept that voltage? boundary
Safety Hazards.
Safety comes first.
Shock
Electric shock.
Shock
Electric shock.
- Has someone had an electric shock or is still in contact with a live source? boundary
- Should the power be switched off without touching them and emergency services called? action
Wiring
Mains work.
Wiring
Mains work.
- Is the user planning work on mains wiring? boundary
- Should a qualified electrician be used, according to local rules? action
Engineering Design.
Design needs correct voltage.
Design
Circuit design.
Design
Circuit design.
- Which voltage regulator or supply suits this circuit? action
- What tolerance is acceptable? measurement
Grid
Transmission.
Grid
Transmission voltages.
- Why is electricity transmitted at high voltage? definition
- What voltages are used here? provenance
What the second pass must settle
- Should voltage categories be separate entries?
- How should national mains data be linked?
- How should safety guidance be localised?