Basic concepts of the electrician

Time to talk also about electric terminology. Her knowledge is useful to you when you read further publications and other literature after the electrician.

Схема устройства автоматического выключателя

Scheme of the device of the automatic cut.

 The Automatic Cut (AC) – the type of the safety lock which works if current intensity in the chain exceeds the established size.

HELL – the automatic machine differential. The hybrid device combining in itself OUZO and the mechanism of protection against the current overload.

Ampere – current intensity unit.

The anode – the positive conclusion of the battery.

The battery – two or more elements connected consistently or in parallel for ensuring the necessary tension and current.

Watt – unit of electric power.

Схема соединения проводов колпачком.

Scheme of connection of wires cap.

Outer conductor – the wire which connects the current source with the consumer.

Volt – voltage unit.

Alignment of potentials – elimination of the difference of potentials between the carrying-out objects.

I LIE (input distributing device) – the device via which the electric power is entered into the house on air and cable lines.

Visible radiation – electro-magnetic radiation with the wavelength from 380 to 780 nanometers.

Internal resistance – resistance to current through the element measured in Ohms.

Energy output – the capacity expense increased by medium voltage during discharge time of batteries, expressed in Watt-hours.

Vmazka – placement and fastening of the mechanism or device.

The wet room – the dry not heated rooms in which couples are allocated only temporarily in small amounts, and the relative humidity – within 60-75%.

Hertz – unit of alternating-current frequency.

Corrugation – flexible pipe PVC. The corrugated plastic pipe, is applied as the additional insulator to the electrical wiring.

Deafly grounded neutral – the transformer neutral or the generator attached to the grounding device directly or through small resistance.

Sleeves – aluminum or copper tubes which internal surface can be greased with kvartsevazilinovy paste.

Виды подрозетников

Types of podrozetnik.

Group network – the network feeding lamps and sockets.

The gas discharge tube – the lamp in which the luminescence is created directly or indirectly from electric discharge in gas, vapors of metal or in mix of gas and steam.

Naked wire – the wire which over conducting veins has no protecting or insulating covers.

Dismantling of the electrical wiring – removal of old wires which connected the guard, lamps, sockets.

Dismantling of sockets and switches – removal of old sockets and switches.

Dismantling of the power cable – removal of the old eyeliner.

Dismantling of the telephone/television cable – removal of the old cable.

Dismantling of lamps – removal of old lamps.

It is allowed – this decision is applied by way of exception as forced.

Capacity – amount of electrical energy which the battery emits under certain conditions discharge, expressed in ampere-hours or the Coulomb.

Vein – copper or aluminum thread in the wire or the cable on which there passes current.

Plait – the wire bundle, laid and connected among themselves, with tips for connection to elements of the scheme or the product.

Схема розетки с заземлением

Scheme of the ground outlet.

The grounding conductor – the wire which is taking away electric current.

Protective wire (RE) – the wire connecting the open carrying-out parts of electric devices to other carrying-out parts and/or to the grounding conductor.

Call – the signaling device working when pressing the button.

Charge – the electrical energy transferred to the element for the purpose of transformation to the reserved chemical energy.

Replacement of automatic machines of protection – replacement of the device intended for protection against the overload and the short circuit.

Fault to frame – random coupling of the parts of the electric unit which are energized with their constructive parts which are normally not energized.

Ground fault – random coupling of the parts of the electric unit which are energized with the constructive parts which are not isolated from the earth or directly with the earth.

The grounding device – set of the grounding conductor and the grounding conductors.

Grounding – deliberate electrical connection of the part of the electric unit with the grounding device.

Nulling – deliberate connection of the parts of the electric unit which are normally not energized with the deadly earthed neutral of the generator or transformer in networks of the three-phase current.

The insulator – the electric device for isolation of the parts of electric equipment which are under different electric potentials and preventions of open ground fault, the body.

The isolated neutral – the neutral which is not attached to the grounding device or attached via the devices compensating the capacity current in network.

Схема индукционной лампы

Scheme of the induction lamp.

Induction lamp – the lamp which is functioning by the principle of the mercury lamp of high pressure, but not having the electrode.

Infrared radiation – optical radiation with wavelength bigger, than at visible radiation.

Isolation – the material interfering distribution of electric current.

The cathode – the negative conclusion of the battery.

Ceramic torch – the metalhalogen lamps equipped with the ceramic torch.

Efficiency – efficiency.

Compensation subcharge – the method at which for reduction of the battery in completely charged state and its maintenance in this state the direct current is used.

Kilowatt-hour – unit of consumption of electric current. Measure power meters.

Схема устройства контактного зажима

Scheme of the device of the terminal clamp: 1 screw; 2 – spring washer; 3 – washer or basis of the terminal clamp; 4 – current carrying vein; 5 – the emphasis limiting spreading of the aluminum conductor.

The terminal clamp – the clip with two screws for connection of wires.

The button is ringing – the contact mechanism.

Terminal group – the plug for connection of wires.

Contact – the basic working element of the device.

Cable – several insulated conductors in the protective hermetic cover.

Color rendition coefficient – the relation of flowers of objects when lighting by their this light source to flowers of the same objects lit by the light source taken for the standard in strictly certain conditions.

KZ – the short circuit.

CLUMPS – the plug of equalizing of potentials.

The contactor – the device intended for frequent remote kommutation of the electric circuit at the standard duty of work.

As a rule – this requirement is prevailing, and derogation from it has to be proved.

KLL – the compact fluorescent lamp.

Luminescence – the radiation which does not demand heating of bodies and can arise in aeriform, liquid and solid bodies under the influence of blows of electrons.

Phosphors – the solid or liquid substances capable to radiate light under the influence of different activators.

Схема устройства люминесцентной лампы

Scheme of the device of the fluorescent lamp.

Fluorescent lamps – gas discharge tubes of low pressure.

Lamp – the electric device intended for light radiation.

Metalhalogen lamps – mercury lamps of high pressure in which additives from iodides of metals, including rare-earth and also difficult compounds of caesium and halogenide of tin are used.

Monochromatic light – one-color light, light of one certain wavelength. In practice contains the narrow site of the range.

Mounting of the electrobox – fastening of the electrobox to the wall.

Tension – potential difference between two points, for example, between the phase and zero wire.

Rated voltage – 220-240 V for the alternating current main.

Zero wire (N) – the wire serving for return of current.

Hinge plate of chandeliers, sconce, lamps – suspension and connection of chandeliers, sconce, lamps.

Laid on electropoint – the socket/switch, walls established on the surface.

Cutoff voltage – the minimum voltage at which the battery is capable to give useful energy under certain conditions of discharge.

Tension of no-load operation – tension on external clips of the battery in the absence of selection of current.

No more – values of sizes are the greatest.

Not less – values of sizes are the smallest.

Схема освещения ванной комнаты

Scheme of illumination of the bathroom.

Normal rooms – dry rooms if there are no conditions (especially crude, hot, dusty).

Ohm – unit of electrical resistance.

Lighting – use of light in the specific situation, near objects or in their environment, with the purpose to make them visible.

Illumination – the size which reflects the ratio of the falling luminous flux to the lit area. The unit of measure – luxury.

Reflection – property of materials to return light falling on them.

Especially crude room is the room where relative air humidity is close to 100%.

The conductor – the electrical wiring constituent serving for transfer of current.

Alternating current – electric current which periodically changes the size and the direction.

Direct current – electric current which flows steadily in one direction.

Consumers of electricity – all electric electric devices working due to electric power consumption.

Board partition – replacement of automatic machines of protection with reconnection of wires.

The boss – the device for installation and fixing of the electric lamp in the lamp.

The safety fuse – the switching electric element intended for shutdown of the protected chain by melting of the protective element.

Схема соединения проводов в распредкоробке.

The scheme of connection of wires in the raspredkorobka.

Buckles – devices for fastening of cables and wires to the bases at open laying.

Wire – the conductor of electric current consisting of one or several conducting veins.

Carrying – the lighting which is carried out by the portable lamps attached to network of 220-240 V in normal rooms and 12 V in rooms of the increased danger.

Wire (PEN) – the wire with protective function.

Energy density – the relation of energy of the element to its weight or volume expressed in Watt-hours per unit mass or volume.

Puskoreguliruyushchy devices (PRA) – the device working in the electric circuit with gas discharge tubes and serving mainly for stabilization of current at discharge.

Soldering – connection of wires by means of the soldering iron and special solders.

Distribution board – the installation site of safety locks, remote switches, etc.

Discharge – consumption of electrical energy from the element in the external circuit.

Detachable contact joints – the devices consisting of the fork and the socket.

Folding contact connections – devices which can be disassembled without destruction of the connected parts.

Raspayachny box – the box in which connection of wires is made.

Current intensity – amount of the electricity proceeding on the wire for the certain period of time.

Heavy current – current up to 1000 V.

Схема устройства линии выключателя

Scheme of the device of the line of the switch.

The low-current safety lock – the small safety fuse used in electric devices.

Weak current – current up to 50 V.

The scheme of the electrical wiring – the scheme which displays position of all electric devices and wires.

The power line – the line of wires for connection of power sockets (the electric stove, the water heater, etc.).

The lamp – the plafond with the boss and the bulb.

Drilling of through openings in walls – drilling of openings through passage in walls.

Power wire – the wire on which there is supply of electricity.

The equipment cable for the computer – the line of computer network.

Light return – light return shows with what efficiency the received electric power will be transformed to the public. It is measured in lumens/W and is the main indicator of profitability of the lamp.

Luminous flux – all radiant power of the light source evaluated on light feeling of the eye of the person. It is measured in lumens.

Light intensity – intensity of light radiated in determinate direction. It is measured in candelas.

The starter – the device serving for ignition of gas discharge tubes by heating of the electrode.

The dry room – the room in which relative air humidity does not exceed 60%.

The crude room – the room in which air humidity the long time exceeds 75%.

Resistance of the grounding device – the sum of resistance of the grounding conductor (concerning the earth) and the grounding conductors.

Resistance to spreading – resistance which is shown by the grounding conductor on the site of spreading of current.

Варианты скрутки проводов

Options of twist of wires.

LED – the semiconductor device with electron-hole r-n transition or contact metal semiconductor which generates when passing through it electric current optical (visible) radiation.

The counter – the electric power metering device.

Twist – the device for connections of separately taken monolithic veins of small section.

Leakage current – the current arising at wiring damage.

Pipe PVC – the rigid plastic pipe. It is applied as the additional insulator to the electrical wiring.

Phone line – the cable for telephone communication.

Television crab – the device for the branching of the television cable on several separate lines.

Earth fault current – the current passing through the earth in the place of short circuit.

The transformer – the device transforming the alternating voltage of one level to tension of other level.

The Device of Protective Shutdown (DPS) – the device for protection against defeat by electric current.

The device of the maximum current protection – the safety fuse or the linear circuit breaker.

Ultra-violet radiation – optical radiation with the length of waves smaller, than at visible radiation.

The ignition device – the electric device which provides the conditions necessary for initiation of discharge.

Installation of the electropoint – installation of the socket/switch.

Installation of the internal electropoint – the vmazk of the podrozetnik.

Схема расположения розеток.

Scheme of the arrangement of sockets.

Installation of the socket – installation of the mechanism of the socket.

Installation of terminal group – connection of wires by means of the plug.

Phase wire – the main conducting wire.

Cycle – one sequence of the charge and discharge of the element.

Color temperature – the measure of the objective impression of color of this light source.

Color feeling – the general subjective feeling which the person feels when he looks at the light source.

Frequency – the number of fluctuations in the second. Alternating-current frequency in the normal power supply network is 50 Hz.

Shtrobleniye – cutting of furrows in walls and ceilings for laying of wires.

The busline – the complete device for laying of the network circuit. Consists of the separate sections connected by welding and bolt connections.

Electric circuit – the closed site of the electrical wiring.

The shielding grid – the part of the lamp made of transparent or opaque elements so that to cover the lamp from direct observation under the certain corner.

Electrolyte – the material which is carrying out charge carriers in the element.

Electrode – the carrying-out material capable at reaction with electrolyte to make carriers of current.

Electric board – the complex of the electrodevices installed in one boxing and intended for electric power distribution on lines and their overload protection, KZ and earth leak currents.

Electrical wiring – the wires connecting the group guard, lamps, sockets, fixed electric devices.

Electrobox – the plastic cable channel for laying of wires in it. It is applied when mounting the outside electrical wiring.

Electropoint – the socket/switch.

Electrical link – the contact of elements providing the continuity of the electric circuit.

Electroadjusting bracket – the plastic P round or flat strip bent in the form of the arch or the letter (depending on cable section).

Of course, it is not all terms which are in the electrician. Here only most often found are provided.


  1. Name

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  3. Andrey

    Friends. I congratulate all of you on day of the power engineering specialist. I wish all of you success in your not easy work.

    To answer
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