Terms used in the technical operation of consumer electrical installations and their definitions

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Terms used in the technical operation of consumer electrical installations and their definitions. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Rules for the technical operation of consumer electrical installations (PTE)

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Blocking of an electrical product (device)	Part of an electrical product (device) designed to prevent or limit the performance of operations by some parts of the product under certain conditions or positions of other parts of the product in order to prevent the occurrence of unacceptable states in it or to exclude access to its live parts
Explosion-proof electrical product (electrotechnical device, electrical equipment)	An electrical product (electrotechnical device, electrical equipment) for special purposes, which is designed in such a way that the possibility of ignition of an explosive atmosphere surrounding it due to the operation of this product is eliminated or hindered
Overhead power line (hereinafter - VL)	A device for transmitting electricity through wires located in the open air and attached with the help of insulators and fittings to supports or brackets and racks on engineering structures (bridges, overpasses, etc.). For the beginning and end of the overhead power line, linear portals or linear inputs of the switchgear (hereinafter - switchgear) are accepted, and for branches - a branch support and a linear portal or linear input of the switchgear
Built-in substation	Electrical substation occupying part of the building
Secondary transmission circuits	A set of rows of clamps, electrical wires and cables connecting devices and control devices for electrical automation, blocking, measurement, protection and signaling
target briefing	Instructions for the safe performance of specific work in an electrical installation, covering the category of workers defined by the order or order, from the person who issued the order, gave the order to a member of the team or performer
Source of electrical energy	An electrical product (device) that converts various types of energy into electrical energy
Power frequency test voltage	RMS voltage of 50 Hz AC, which the internal and/or external insulation of electrical equipment must withstand for a given time under certain test conditions
Test rectified voltage	The amplitude value of the voltage applied to electrical equipment for a given time under certain test conditions
Cable power line (hereinafter - CL)	A line for the transmission of electricity or its individual pulses, consisting of one or more parallel cables with connecting, locking and end sleeves (terminals) and fasteners, and for oil-filled cable lines, in addition, with feeders and an oil pressure alarm system
Complete switchgear	Switchgear, consisting of fully or partially closed cabinets or blocks with built-in switching devices, equipment, protection and automation devices, supplied assembled or fully prepared for assembly. The complete switchgear (hereinafter referred to as KRU) is intended for indoor installation. Complete switchgear (hereinafter referred to as KRUN) is intended for outdoor installation
Complete transformer (converting) substation	A substation consisting of transformers (converters) and blocks (KRU or KRUN and other elements) supplied assembled or fully prepared for assembly. Complete transformer (converting) substations (hereinafter referred to as KTP, KPP) or parts of them, installed indoors, refer to indoor installations, installed outdoors - to outdoor installations
Power line	An electrical line extending outside a power plant or substation and intended for the transmission of electrical energy
Non-normalized measured value	A quantity whose absolute value is not regulated by the norms. In this case, the assessment of the state of electrical equipment is carried out by comparing the measured value with the data of previous measurements or similar measurements on the same type of electrical equipment with obviously good characteristics, with the results of other tests, etc.
Neutral	Common point of star-connected windings (elements) of electrical equipment
Converter substation	Electrical substation designed to convert the type of current or its frequency
Electrical energy receiver (electric receiver)	Apparatus, unit, mechanism designed to convert electrical energy into another form of energy
Mobile electrical receiver	An electrical receiver, the design of which makes it possible to move it to the place of use for its intended purpose using vehicles or rolling it manually, and the connection to the power source is carried out using a flexible cable, cord and temporary detachable or detachable contact connections
Schematic diagram of a power plant (substation)	A diagram showing the composition of the equipment and its connections, giving an idea of the principle of operation of the electrical part of the power plant (substation)
Control current network	AC or DC electrical network designed for transmission and distribution of electrical energy used in control, automation, protection and signaling circuits of a power plant (substation)
Power circuit	An electrical circuit containing elements whose functional purpose is to produce or transmit the main part of electrical energy, distribute it, convert it into another type of energy or into electrical energy with other parameter values
Busbar system	A set of elements connecting the connections of an electrical switchgear
Conductor	A device made in the form of tires or wires with insulators and supporting structures, designed for the transmission and distribution of electrical energy within a power plant, substation or workshop
Transformer substation	An electrical substation designed to convert electrical energy of one voltage into electrical energy of another voltage using transformers
Traction substation	An electrical substation designed primarily to supply electrically powered vehicles via a catenary
Control panel of a power plant (substation)	A set of consoles and panels with control, monitoring and protection devices of a power plant (substation) located in one room
Electrical substation	Electrical installation designed for the conversion and distribution of electrical energy
Electrical network	A set of electrical installations for the transmission and distribution of electrical energy, consisting of substations, switchgears, current conductors, overhead and cable power lines operating in a certain area
Electrical distribution point	Electrical switchgear not included in the substation
Electrical switchgear	An electrical installation that serves to receive and distribute electricity and contains switching devices, prefabricated and connecting buses, auxiliary devices (compressor, battery, etc.), as well as protection devices, automation and measuring instruments
Electric equipment	A set of electrical devices that have common features. Signs of association, depending on the tasks, can be: appointments, for example, technological; conditions of use, for example, in the tropics; belonging to an object, for example, a machine, a workshop
Exploitation	The stage in the life cycle of a product at which its quality is realized, maintained or restored
Wiring	A set of wires and cables with their associated fasteners, mounting and protective parts, laid on the surface or inside the structural building elements of buildings and structures
Power	An electrical installation intended for the production of electrical or electrical and thermal energy, consisting of a building part, equipment for converting various types of energy into electrical or electrical and thermal energy, auxiliary equipment and electrical switchgear
Electrical installation	A set of machines, devices, lines and auxiliary equipment (together with the structures and premises in which they are installed) intended for the production, conversion, transformation, transmission, distribution of electrical energy and its conversion into another type of energy
Electrical installation operating	An electrical installation or part thereof that is energized, or to which voltage can be applied by switching on switching devices
Electrical equipment with normal insulation	Electrical equipment intended for use in electrical installations subject to lightning surges, with normal surge protection measures
Electrical equipment with lightweight insulation	Electrical equipment intended for use in electrical installations not subject to lightning surges, or with special protective measures that limit the amplitude of lightning surges

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