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Online tools for engineers, electricians and DIYers. https://www.asutpp.com/
Amps to Volts Calculator
Select calculation type, enter amps and watts or ohms and press the Calculate button to get volts:
Calculation Type:
Amps to Volts with Watts
Amps to V...
See also: https://www.asutpp.com/amps-to-volts-calculator.html
Amps to VA Calculator
Enter the current in amps (A), voltage in volts (V), then press the Calculate button to get the result in volt-amps (VA).
Select phase:
Single phase
Three phase
Current (A):
Li...
See also: https://www.asutpp.com/amps-to-va-calculator.html
Amps to Kilowatts Calculator
To convert amperes to watts for both DC and AC single and three-phase circuits, you will need to input the current and voltage values. Our calculator will then provide you with the precise wattage output.
In...
See also: https://www.asutpp.com/amps-to-kilowatts-calculator.html
What Is an Electrical Circuit Overload?
Overload is operating conditions in an electrically undamaged circuit, which cause an overcurrent [this term is defined in the IEC 60050-441].
IEC 60269-5 technical report, IEC 60947-1, IEC 61058-1, IEC 61095, IEC 61892-2, and...
See also: https://www.asutpp.com/electrical-circuit-overload.html
Residual Current Devices (RCDs) Explained
In this article we will look at what an RCD is, its purpose, principle of operation and construction features.
What Is a Residual Current Device?
Residual current device (RCD): a mechanical switching device or association o...
See also: https://www.asutpp.com/residual-current-device-rcd
What Is a Protective Conductor Current? Definition, Flow Path, Limits
What is meant by the term protective conductor current?
Protective conductor current is an electric current appearing in a protective conductor, such as leakage current or electric current resulting from an insulation fault [t...
See also: https://www.asutpp.com/protective-conductor-current.html
How to Read Circuit-Breaker Markings and Labels?
In this article, we will look at what information is marked on IEC 60898-1-2019 compliant household circuit-breakers.
Understanding Circuit-Breaker Markings
Each circuit-breaker shall be marked in a durable manner wi...
See also: https://www.asutpp.com/how-to-read-circuit-breaker-markings-and-labels.html
Switchgear and Controlgear
The term ‘switchgear and controlgear’ is officially defined within the IEC 60050-826-2022 as:
electric equipment intended to be connected to an electric circuit for the purpose of carrying out one or more of the following...
See also: https://www.asutpp.com/switchgear-and-controlgear.html
Electric Circuit of an Electrical Installation
Definitions
The term ‘electric circuit of an electrical installation’ is officially defined within the IEC 60050-826-2022 as:
arrangement of devices or media through which electric current is intended to flow.
IEC 6005...
See also: https://www.asutpp.com/electric-circuit-of-an-electrical-installation.html
What Is a Fixed Electrical Equipment?
The term ‘fixed equipment’ is officially defined within the IEC 60050-826-2022 as:
electric equipment fastened to a support or otherwise secured in a specific location.
IEC 60050-826-2022
Note 1 to entry: Equipment tha...
See also: https://www.asutpp.com/fixed-electrical-equipment.html
What Is a Permanently Connected Electrical Equipment?
The term ‘permanently connected equipment’ is officially defined within the IEC 61010-1 as:
equipment that is electrically connected to a supply by means of a permanent connection which can be detached only by the use of ...
See also: https://www.asutpp.com/permanently-connected-electrical-equipment.html
PME (Protective Multiple Earthing) System: Detailed Explanation, Diagram
Protective multiple earthing (PME) system: an earthing arrangement, found in TN-C-S systems, in which the supply neutral conductor is used to connect the earthing conductor of an installation with Earth, in accordance with the El...
See also: https://www.asutpp.com/pme-earthing.html
Main Distribution Board (MDB): Definition, Meaning, Components
Main distribution board (MDB) is a distribution board that fulfills all the functions of a main electrical distribution for the supplied area assigned to it and where the voltage is measured for operating the electric supply syst...
See also: https://www.asutpp.com/main-distribution-board-mdb.html
Types of Earthing Systems for AC and DC Electrical Distribution Systems
Type of system earthing: an integrated characteristic of the distribution system, which assigns availability or absence of earthing of live parts of a power source, availability of earthing of exposed-conductive-parts of an elect...
See also: https://www.asutpp.com/types-of-system-earthing.html
Protective Measure: Double or Reinforced Insulation. Definition, Meaning, Symbol, Requirements
Double insulation is an insulation comprising both basic insulation and supplementary insulation [source: IEC 60050-195-2021].
Reinforced insulation is an insulation of hazardous-live-parts which provides protection against el...
See also: https://www.asutpp.com/double-insulation.html
VA to Amps Calculator
Enter the number of phases, the apparent power in volt-amps, and the voltage in volts, and press the calculate button to obtain the current in amps:
Select phase:
Single phase
Three phase
E...
See also: https://www.asutpp.com/va-to-amps-calculator.html
Kilowatts to Amps Calculator
To use the calculator, select the current type, enter the power in kilowatts, voltage in volts, and power factor (if applicable). For AC three phase systems, choose between line to line or line to neutral voltage. Click “Calcul...
See also: https://www.asutpp.com/kilowatts-to-amps-calculator.html
Overload Current of an Electric Circuit
What Is an Overload Current?
Overload current is an overcurrent occurring in an electric circuit, which is not caused by a short-circuit or an earth fault [SOURCE: IEC 60050-826-2022].
The definition given has a logical sev...
See also: https://www.asutpp.com/overload-current.html
What Is a Short-Circuit? Definition & Meaning, Causes, Protection
Definition & Meaning
The term ‘short-circuit’ is officially defined within the IEC 60050-151 as:
accidental or intentional conductive path between two or more conductive parts forcing the electric potential differences...
See also: https://www.asutpp.com/short-circuit.html
Earthed System: What it Is, Examples, Features
Earthed system is an electrical system in which at least one live part is earthed directly.
Note 1 – Three-phase four-wire and single-phase three-wire AC electrical systems must be earthed. In three-phase three-wire and sing...
See also: https://www.asutpp.com/earthed-system.html
Nominal Voltage of an Electrical Installation
The term ‘nominal voltage of an electrical installation’ is officially defined within the IEC 60050-826-2022 as:
value of the voltage by which the electrical installation or part of the electrical installation is designat...
See also: https://www.asutpp.com/nominal-voltage-of-an-electrical-installation.html
What Is a Touch Voltage? [Definitive Guide]
We are all familiar with the dangers of electricity, but few people understand what touch voltage is and why it can be so dangerous. Touch voltage is an electrical hazard that occurs when a person comes into contact with a live p...
See also: https://www.asutpp.com/touch-voltage.html
What Is an Electrical Riser in a Building?
An electrical riser is an electrical distribution circuit mounted vertically in a building.
In the electrical installations of apartment buildings are usually mounted vertically located electrical circuits – electrical riser...
See also: https://www.asutpp.com/what-is-an-electrical-riser.html
What Is a Hand-Held Electrical Equipment?
The term ‘hand-held equipment’ is officially defined within the IEC 60050-826-2022 as:
electric equipment intended to be held in the hand during normal use.
IEC 60050-826-2022
Hand-held electrical equipment means equip...
See also: https://www.asutpp.com/hand-held-electrical-equipment.html
What Is a Stationary Electrical Equipment?
The term ‘stationary equipment’ is officially defined within the IEC 60050-826-2022 as:
fixed equipment or equipment that cannot be easily moved.
Note 1 to entry: Stationary equipment is neither movable equipment nor ...
See also: https://www.asutpp.com/stationary-electrical-equipment.html
What Is a Consumer Unit?
The term ‘consumer unit (may also be known as a consumer control unit or electricity control unit)’ is officially defined within the 2018 edition of BS 7671 as:
A particular type of distribution board comprising a type-te...
See also: https://www.asutpp.com/what-is-a-consumer-unit.html
Electrical Distribution Circuit: Definition, Meaning, Examples
Distribution circuit: an electric circuit supplying one or more distribution boards [this term is defined in the IEC 60050-826-2022]. In some regulatory documents, instead of the correct term “distribution circuit,” the terms...
See also: https://www.asutpp.com/distribution-circuit.html
What Is a Final Electric Circuit (Branch Circuit)? Definition, Meaning, Requirements
Definitions
Final electric circuit (IEC, UK) or (branch circuit, US)is an electric circuit incorporating current-using equipment and/or socket-outlets [this term is defined in the IEC 60050-826-2022].
Branch circuit: the ci...
See also: https://www.asutpp.com/final-electric-circuit.html
What Is Reference Earth (Ground)?
Reference earth (or reference ground in the USA) is a part of the Earth considered as conductive, the electric potential of which is conventionally taken as zero, being outside the zone of influence of any earthing arrangement.
...
See also: https://www.asutpp.com/reference-earth-ground.html
Earthing Switch: Classification, Ratings, Design and Construction
Earthing switch (or grounding switch in the USA) is a mechanical switching device for earthing parts of a circuit, capable of withstanding for a specified time currents under abnormal conditions such as those of short-circuit, b...
See also: https://www.asutpp.com/earthing-switch.html