GOST 2.702-75 UDC 744.43:621.3.062:006.354 Group T52 Interstate standard Unified system for design documentation RULES miswiring Unified system for design documentation. Rules for presentation of electric schemes Effective date 07/01/1977 This standard applies to electrical wiring products for all industries, as well as the electrical wiring of power structures and establishes rules to perform manual or automated fashion. Kinds and types of circuits and general requirements to implement them - according to GOST 2,701. Alphanumeric designations in electrical circuits - GOST 2,710. Corresponds to the standard ST SEV 1188 in terms of Sec. 2-4, 6-9 (see annex). (Revised edition, Alt. № 2). 1. RULES FOR THE IMPLEMENTATION OF THE STRUCTURAL ARRANGEMENTS 1.1. The structural diagram depict all the basic functionality of the product (the elements, devices, and functional groups) and the basic relationship between them. 1.2. Functional parts of the scheme is portrayed as a rectangle or a conventional graphic symbols. 1.3. Graphical scheme should give the most visual representation of the sequence of interaction between the functional parts in a product. On the lines recommended links arrows indicate the direction of the processes occurring in the product. 1.4. The scheme must specify the name of each functional part of the product, if its designation applied rectangle. The scheme allowed to specify the type of the element (device), and (or) the designation of the document (the basic design documents, state standards and technical conditions), under which the element (device) is applied. The depiction of the functional parts in the form of rectangles names, types and symbols recommended enter into rectangles. 1.5. With a large number of functional parts is allowed instead of names, types and symbols affix serial numbers to the right of the image or over it, usually downward from left to right. In this case, the names, types and symbols indicate in the table provided on the box scheme. 1.6. Allowed to put on the scheme explaining the inscriptions, charts or tables that define the sequence of processes in time, as well as to specify the parameters at characteristic points (the currents, voltages, pulse shapes and sizes, mathematical relations, etc.). 2. RULES FOR THE IMPLEMENTATION OF FUNCTIONAL CIRCUITS 2.1. The functional diagram depict functional parts of the product (the elements, devices, and functional groups) involved in the process, illustrated circuit, and the connection between these parts. 2.2. Functional parts and their relationships in the scheme is portrayed as a conventional graphic symbols set forth in the Uniform Standards of design documentation. Individual pieces of functionality may be represented in the form of rectangles. 2.3. Graphical scheme should give the most visual representation of the sequence of processes illustrated in the scheme. 2.4. Is subject to the functional circuits using the provisions set forth in paragraphs. 3.6-3.15 and 3.24. 2.5. The scheme must be specified: for each functional group - the designation assigned to her on the concept, and (or) its name, and if the functional group is shown as a conventional graphic symbols, its name does not indicate, for each device, shown as a rectangle - positional notation, assigned to him on the concept, its name and type, and (or) the designation of the document (the basic design documents, state standards and technical conditions), under which the device is applied, for each device shown in the form of a conditional graphical notation - positional notation, assigned to him on the concept, its type and (or) the designation of the document, for each item - tag given to him on the concept, and (or) its type. Designation of the document based on which device is used and the type of element is allowed not to specify. Names, types and symbols is recommended to insert into rectangles. 2.6. The scheme should specify the technical characteristics of the functional parts (next to the graphic symbols or free-field circuit). 2.7. The scheme put explanatory labels, charts or tables that define the sequence of processes in time and also indicate the parameters at characteristic points (the currents, voltages, pulse shapes and sizes, mathematical relations, etc.). 3. RULES FOR THE IMPLEMENTATION OF SCHEMATIC DIAGRAM 3.1. To depict the concept of all the electrical components or devices necessary to implement and control the product specified electrical processes, all the electrical connections between them, as well as electrical components (connectors, clamps, etc.), which ends the input and output circuits. (Revised edition, Alt. № 2). 3.2. The scheme is allowed to represent the connecting and mounting components that are installed in a product for structural reasons. 3.3. Schemes carried out for articles in the open position. In technically justified cases allowed some elements of the scheme to depict the selected position with reference to the scheme field regime, which shows these elements. 3.4. Elements and devices, conventional graphic symbols are set forth in the Uniform Standards of design documentation, portrayed in the diagram in the form of conventional graphic symbols. 3.5. Elements or devices used in the product partly allowed to portray the scheme incomplete, picture is only limited use of parts or elements. 3.4, 3.5. (Revised edition, Alt. № 3). 3.6. Elements and devices depicted in the schemes combined or remote manner. 3.7. When combining the method of component parts or elements of devices depicted in the scheme in close proximity to each other. 3.8. Spaced at the way the constituent parts of the elements and devices, or individual elements of devices depicted in the scheme in different places so that the individual chain items were depicted most clearly. Spaced method is allowed to represent all and the individual elements or devices. When performing schemes are encouraged to use lower case way. In this case, the conditional graphical notation elements or parts thereof, belonging to the same chain, represent one after the other in a straight line, and some chains - side by side, forming a parallel (horizontal or vertical) line. In carrying out the scheme lowercase method allowed line numbers in Arabic numerals (Fig. 1). Damn. 1 3.9. When the image elements or devices spaced manner permitted on free-field scheme to put the conditional elements of graphic symbols, or devices made by combination of different methods. The elements or devices used in the product partly depict fully showing used and unused parts or elements (eg, all contacts and multiple relays). Conclusions (contacts) in unused elements (parts) represent shorter than the leads (contacts) used elements (parts) (Fig. 2). Damn. 2 3.8, 3.9. (Revised edition, Alt. № 3). 3.10. Scheme operates in multiline or single-line image. 3.11. When a Multiline image each chain represent a separate line, and the elements contained in these chains - separate conventional graphic symbols (Fig. 3a). a - Multiserver image b - one-line image of Hell. 3 3.12. When a single-line image chain operating identical functions, represent a single line, and the same elements of these chains - a symbol of graphic symbols (Fig. 3b). 3.11, 3.12. (Revised edition, Alt. № 3). 3.13. If necessary, the scheme indicate the electrical circuit. These designations should conform to the requirements of GOST 2,709 or other regulatory and technical instruments in force in the industry. 3.14. When an image on a scheme for the various functional circuits allowed them to distinguish the line thickness. In one scheme, do not use more than three dimensions of the lines in thickness. If necessary, the field circuit is placed clarification. 3.15. To simplify the scheme may be somewhat electrically connected communication lines merge into a line of group communication, but at the approach to the contacts (elements) per line of communication represent a separate line. At the confluence of lines each line mark at the confluence, and if necessary, and at both ends of the symbols (numbers, letters or a combination of letters and numbers) or the notation adopted for electrical circuits (see paragraph 3.13). Legend of lines put down in accordance with the requirements given in GOST 2,721. Damn. 3a telecommunications lines merge into a line of group communication, as a rule, should not have branches, ie, every conditional number must occur in the line of group communication twice. If necessary, indicate the number of their branches after the serial number of the line through the slashes (Fig. 3a). 3.16. Each element and (or) the device with self-concept and considered as an element included in the product and depicted in the scheme, shall have the identification (tagging) in accordance with GOST 2,721. Devices that do not self-concepts, and functional groups are encouraged to assign the designation in accordance with GOST 2,710. 3.15, 3.16. (Revised edition, Alt. № 2). 3.17. Positional notation elements (devices) should be assigned within the products (installed). 3.18. Serial numbers of components (a device) should be assigned, beginning with unity within a group of elements (devices), which in the scheme given the same letter tag, for example, Rl, R2, R3, etc., Cl, C2, C3 and T . e. 3.19. Sequence numbers must be assigned in accordance with the sequence of items or devices on the circuit from the top down from left to right. If necessary, is allowed to modify the sequence assignment of sequence numbers, depending on the placement of elements in the product direction of the signals or the functional sequence of the process. When you make changes in circuit sequence assignment of ordinal numbers may be compromised. 3.20. Positional notation mark on the scheme next to the conventional graphic symbols of elements and (or) devices on the right side or above them. 3.21. The scheme products, which consists of devices that do not separate concepts, is allowed to assign a tag elements within each unit. If the composition of products includes several similar devices, the tag elements should be assigned within these devices. Serial numbers of items should be assigned by the rules established in Section 3.18. Elements not included in the device tag is assigned, starting with one, according to the rules set out in paragraphs. 3.17-3.19. 3.22. The scheme products, which consists of functional groups, tagging element is assigned according to the rules set out in paragraphs. 3.17-3.19, while initially assign a tag items, non-functional groups, and then elements within the functional groups. If there is a product of multiple identical functional groups tagging elements assigned to one of these groups, should be repeated in all subsequent groups. Designation of a functional group that is assigned in accordance with GOST 2,710 indicate about the image of a functional group (top or right). 3.23. When the image on the scheme component or device spaced way tag element or device shall be about each component (Fig. 4). Combined method of image device exploded the way the image device devil. 4 Damn. 5 If the field circuit is divided into zones or circuit is made lowercase way, the right of the tag or a tag for each part of the component or device may be indicated in parentheses refer to zones or line numbers, which shows all of the other component parts of the component or device ( features. 5). 3.21-3.23. (Revised edition, Alt. № 2). 3.24. Allowed if it does not complicate the scheme, shown separately of the elements connecting line mechanical connection, indicating that they belong to the same element. In this case, the tagging elements put down one or both ends of the line of mechanical connections. 3.25. The depiction of individual elements of devices at different locations in the tagging of these items should be included tagging device to which they belong, for example, = A3-C5 - C5 condenser, part of the unit A3. 3.26. Spaced at the image of a functional group (if necessary, and when combined method) to the tagging elements included in this group should include the designation of functional groups, for example, ? T1-C5 - C5 condenser, part of a functional group T1. 3.27. When a single-line image about one conditional graphical notation that replaces several conventional graphic symbols of identical elements or devices to indicate positional notation of all these elements or devices. If the same elements or devices are not all circuits shown single line, the right of the tag or below it in the brackets indicate the designation of chains, which contain these elements or devices (see Fig. 3). 3.28. On the concept should be clearly defined and all elements and devices included in the product and depicted in the diagram. Data about the elements must be recorded in the list of elements. The connection list for conditional graphical notation elements should be done through tagging. Permitted in certain cases specified in state or industry standards, all the information about elements placed around conventional graphic symbols. 3.27, 3.28. (Revised edition, Alt. № 3). 3.29-3.33. (Deleted, Mod. № 2). 3.34. When entering the complex, such as when a device has no self-concept, includes one or more devices that are independent concepts, and (or) functional groups, or if the functional group includes one or more devices, etc. then the list of items in the column "Name" before the name of devices that do not have self-concepts, and functional groups allowed to affix a serial number (ie, like the designation of sections, subsections, etc.) within the entire scheme of the product (Fig. 9a). If the scheme in the tag element includes a positional notation system, or the designation of the functional group, the list of items in the column "Pos. designation "indicate tag element without tag device or mark the functional group. (Revised edition, Alt. № 2). 3.35. (Deleted, Mod. № 2). 3.36. When referring to some conventional graphic symbols face values ??of resistors and capacitors (Fig. 11) is supposed to apply a simplified way to represent units of measurement: for resistors from 0 to 999 ohms - without specifying the units, from 1.103 to 999,103 ohms - in kiloomah labeled units to lowercase, from 1.106 to 999,106 ohms - in megaomah with units of measurement to a capital letter M, more than 1.109 Ohm - at gigaomah with units of measurement to a capital letter T, for condensers from 0 to 9999.12 -12 F - in picofarads without specifying the units, from 1.10 -8 to -6 9999.10 F - in microfarads with units of measurement to lowercase microns. 3.37. The diagram should indicate the designation leads (contacts) elements (devices), marked on the product or set in their documentation. If a design element (device) and in its documentation the notation leads (pins) are not specified, allowed conditionally assign them to refer to the scheme by repeating them in the future in the relevant design documents. A conditional assignment notation conclusions (contacts) in the field circuit is placed an appropriate explanation. When the image on the scheme of multiple identical elements (devices) designation leads (contacts) can specify one of them. When the image of a spaced identical elements (devices), the findings indicate (contact) point to each part of the element (device). For differences in the naming scheme of deductions (contacts) from other symbol (chains, etc.) is allowed to record the notation leads (contacts) with a qualifying symbol in accordance with the requirements of GOST 2,710. 3.38. (Revised edition, Alt. № 2, 3). (Deleted, Mod. № 2). 10. 3.39. (Revised edition, Alt. № 2). 3.40. 2. 3. (Revised edition, Alt. № 2). 3.42. 2. (Revised edition, Alt. № 2, 3). (Deleted, Mod. № 2). (Deleted, Mod. № 2). (Revised edition, Alt. № 2). (Deleted, Mod. № 2). (Revised edition, Alt. № 2). 4. 4.2. (Revised edition, Alt. № 2). 4.3. 4.4. 4.5. (Revised edition, Alt. № 2). 4.6. 4.7. 4.8. 4.9. (Revised edition, Alt. № 2). 4.10. (Revised edition, Alt. № 2, 3). 4.12. (Revised edition, Alt. № 2). 4.13. 4.14. 4.15. 4.16. 25. (Revised edition, Alt. № 2). 4.18. 2. 3. 4. 4.19. 4.20. 4.21. 2. 4.22. 4.23. 4.24. 4.25. 2. 4.26. Note. (Revised edition, Alt. № 2). 5. 5.2. (Revised edition, Alt. № 2). 5.3. 5.4. 5.5. (Revised edition, Alt. № 2). 5.6. 5.7. 5.8. 5.9. (Revised edition, Alt. № 2). 6. 6.2. (Revised edition, Alt. № 2). 6.3. 6.4. (Revised edition, Alt. № 2). 6.5. 6.6. 6.7. (Revised edition, Alt. № 3). 6.8. 6.9. 6.10. 6.11. Note. (Revised edition, Alt. № 2). (Revised edition, Alt. № 2). 7. 7.2. 7.3. (Revised edition, Alt. № 2). 7.4. 7.5. (Revised edition, Alt. № 2). 8. Developed and submitted by the State Committee of Standards Council of Ministers DEVELOPERS VR Graphical symbols in diagrams. Robot device GOST 2.755-87 Unified system for design documentation. Graphical symbols in electrical circuits. Device switching and contact connections GOST 2.756-76 * Unified system for design documentation. Graphical symbols in diagrams. Is often perceived electromechanical devices GOST 2.757-81 * Unified system for design documentation. Graphical symbols in diagrams. Elements of the switching field for switching systems GOST 2.758-81 Unified system for design documentation. Graphical symbols in diagrams. Signal Technology GOST 2.762-85 * Unified system for design documentation. Graphical symbols in electrical circuits. Frequencies and frequency bands for transmission systems GOST 2.763-85 * Unified system for design documentation. Graphical symbols in electrical circuits. Device with a pulse-code modulation GOST 2.764-86 Unified system for design documentation. Graphical symbols in electrical circuits. Integrated optoelectronic display elements GOST 2.768-90 Unified system for design documentation. Graphical symbols in diagrams.
GOST 2.702-75 UDC 744.43:621.3.062:006.354 Group T52 Interstate standard Unified system for design documentation RULES miswiring Unified system for design documentation. Rules for presentation of electric schemes Effective date 07/01/1977 This standard applies to electrical wiring products for all industries, as well as the electrical wiring of power structures and establishes rules to perform manual or automated fashion. Kinds and types of circuits and general requirements to implement them - according to GOST 2,701. Alphanumeric designations in electrical circuits - GOST 2,710. Corresponds to the standard ST SEV 1188 in terms of Sec. 2-4, 6-9 (see annex). (Revised edition, Alt. № 2). 1. RULES FOR THE IMPLEMENTATION OF THE STRUCTURAL ARRANGEMENTS 1.1. The structural diagram depict all the basic functionality of the product (the elements, devices, and functional groups) and the basic relationship between them. 1.2. Functional parts of the scheme is portrayed as a rectangle or a conventional graphic symbols. 1.3. Graphical scheme should give the most visual representation of the sequence of interaction between the functional parts in a product. On the lines recommended links arrows indicate the direction of the processes occurring in the product. 1.4. The scheme must specify the name of each functional part of the product, if its designation applied rectangle. The scheme allowed to specify the type of the element (device), and (or) the designation of the document (the basic design documents, state standards and technical conditions), under which the element (device) is applied. The depiction of the functional parts in the form of rectangles names, types and symbols recommended enter into rectangles. 1.5. With a large number of functional parts is allowed instead of names, types and symbols affix serial numbers to the right of the image or over it, usually downward from left to right. In this case, the names, types and symbols indicate in the table provided on the box scheme. 1.6. Allowed to put on the scheme explaining the inscriptions, charts or tables that define the sequence of processes in time, as well as to specify the parameters at characteristic points (the currents, voltages, pulse shapes and sizes, mathematical relations, etc.). 2. RULES FOR THE IMPLEMENTATION OF FUNCTIONAL CIRCUITS 2.1. The functional diagram depict functional parts of the product (the elements, devices, and functional groups) involved in the process, illustrated circuit, and the connection between these parts. 2.2. Functional parts and their relationships in the scheme is portrayed as a conventional graphic symbols set forth in the Uniform Standards of design documentation. Individual pieces of functionality may be represented in the form of rectangles. 2.3. Graphical scheme should give the most visual representation of the sequence of processes illustrated in the scheme. 2.4. Is subject to the functional circuits using the provisions set forth in paragraphs. 3.6-3.15 and 3.24. 2.5. The scheme must be specified: for each functional group - the designation assigned to her on the concept, and (or) its name, and if the functional group is shown as a conventional graphic symbols, its name does not indicate, for each device, shown as a rectangle - positional notation, assigned to him on the concept, its name and type, and (or) the designation of the document (the basic design documents, state standards and technical conditions), under which the device is applied, for each device shown in the form of a conditional graphical notation - positional notation, assigned to him on the concept, its type and (or) the designation of the document, for each item - tag given to him on the concept, and (or) its type. Designation of the document based on which device is used and the type of element is allowed not to specify. Names, types and symbols is recommended to insert into rectangles. 2.6. The scheme should specify the technical characteristics of the functional parts (next to the graphic symbols or free-field circuit). 2.7. The scheme put explanatory labels, charts or tables that define the sequence of processes in time and also indicate the parameters at characteristic points (the currents, voltages, pulse shapes and sizes, mathematical relations, etc.). 3. RULES FOR THE IMPLEMENTATION OF SCHEMATIC DIAGRAM 3.1. To depict the concept of all the electrical components or devices necessary to implement and control the product specified electrical processes, all the electrical connections between them, as well as electrical components (connectors, clamps, etc.), which ends the input and output circuits. (Revised edition, Alt. № 2). 3.2. The scheme is allowed to represent the connecting and mounting components that are installed in a product for structural reasons. 3.3. Schemes carried out for articles in the open position. In technically justified cases allowed some elements of the scheme to depict the selected position with reference to the scheme field regime, which shows these elements. 3.4. Elements and devices, conventional graphic symbols are set forth in the Uniform Standards of design documentation, portrayed in the diagram in the form of conventional graphic symbols. 3.5. Elements or devices used in the product partly allowed to portray the scheme incomplete, picture is only limited use of parts or elements. 3.4, 3.5. (Revised edition, Alt. № 3). 3.6. Elements and devices depicted in the schemes combined or remote manner. 3.7. When combining the method of component parts or elements of devices depicted in the scheme in close proximity to each other. 3.8. Spaced at the way the constituent parts of the elements and devices, or individual elements of devices depicted in the scheme in different places so that the individual chain items were depicted most clearly. Spaced method is allowed to represent all and the individual elements or devices. When performing schemes are encouraged to use lower case way. In this case, the conditional graphical notation elements or parts thereof, belonging to the same chain, represent one after the other in a straight line, and some chains - side by side, forming a parallel (horizontal or vertical) line. In carrying out the scheme lowercase method allowed line numbers in Arabic numerals (Fig. 1). Damn. 1 3.9. When the image elements or devices spaced manner permitted on free-field scheme to put the conditional elements of graphic symbols, or devices made by combination of different methods. The elements or devices used in the product partly depict fully showing used and unused parts or elements (eg, all contacts and multiple relays). Conclusions (contacts) in unused elements (parts) represent shorter than the leads (contacts) used elements (parts) (Fig. 2). Damn. 2 3.8, 3.9. (Revised edition, Alt. № 3). 3.10. Scheme operates in multiline or single-line image. 3.11. When a Multiline image each chain represent a separate line, and the elements contained in these chains - separate conventional graphic symbols (Fig. 3a). a - Multiserver image b - one-line image of Hell. 3 3.12. When a single-line image chain operating identical functions, represent a single line, and the same elements of these chains - a symbol of graphic symbols (Fig. 3b). 3.11, 3.12. (Revised edition, Alt. № 3). 3.13. If necessary, the scheme indicate the electrical circuit. These designations should conform to the requirements of GOST 2,709 or other regulatory and technical instruments in force in the industry. 3.14. When an image on a scheme for the various functional circuits allowed them to distinguish the line thickness. In one scheme, do not use more than three dimensions of the lines in thickness. If necessary, the field circuit is placed clarification. 3.15. To simplify the scheme may be somewhat electrically connected communication lines merge into a line of group communication, but at the approach to the contacts (elements) per line of communication represent a separate line. At the confluence of lines each line mark at the confluence, and if necessary, and at both ends of the symbols (numbers, letters or a combination of letters and numbers) or the notation adopted for electrical circuits (see paragraph 3.13). Legend of lines put down in accordance with the requirements given in GOST 2,721. Damn. 3a telecommunications lines merge into a line of group communication, as a rule, should not have branches, ie, every conditional number must occur in the line of group communication twice. If necessary, indicate the number of their branches after the serial number of the line through the slashes (Fig. 3a). 3.16. Each element and (or) the device with self-concept and considered as an element included in the product and depicted in the scheme, shall have the identification (tagging) in accordance with GOST 2,721. Devices that do not self-concepts, and functional groups are encouraged to assign the designation in accordance with GOST 2,710. 3.15, 3.16. (Revised edition, Alt. № 2). 3.17. Positional notation elements (devices) should be assigned within the products (installed). 3.18. Serial numbers of components (a device) should be assigned, beginning with unity within a group of elements (devices), which in the scheme given the same letter tag, for example, Rl, R2, R3, etc., Cl, C2, C3 and T . e. 3.19. Sequence numbers must be assigned in accordance with the sequence of items or devices on the circuit from the top down from left to right. If necessary, is allowed to modify the sequence assignment of sequence numbers, depending on the placement of elements in the product direction of the signals or the functional sequence of the process. When you make changes in circuit sequence assignment of ordinal numbers may be compromised. 3.20. Positional notation mark on the scheme next to the conventional graphic symbols of elements and (or) devices on the right side or above them. 3.21. The scheme products, which consists of devices that do not separate concepts, is allowed to assign a tag elements within each unit. If the composition of products includes several similar devices, the tag elements should be assigned within these devices. Serial numbers of items should be assigned by the rules established in Section 3.18. Elements not included in the device tag is assigned, starting with one, according to the rules set out in paragraphs. 3.17-3.19. 3.22. The scheme products, which consists of functional groups, tagging element is assigned according to the rules set out in paragraphs. 3.17-3.19, while initially assign a tag items, non-functional groups, and then elements within the functional groups. If there is a product of multiple identical functional groups tagging elements assigned to one of these groups, should be repeated in all subsequent groups. Designation of a functional group that is assigned in accordance with GOST 2,710 indicate about the image of a functional group (top or right). 3.23. When the image on the scheme component or device spaced way tag element or device shall be about each component (Fig. 4). Combined method of image device exploded the way the image device devil. 4 Damn. 5 If the field circuit is divided into zones or circuit is made lowercase way, the right of the tag or a tag for each part of the component or device may be indicated in parentheses refer to zones or line numbers, which shows all of the other component parts of the component or device ( features. 5). 3.21-3.23. (Revised edition, Alt. № 2). 3.24. Allowed if it does not complicate the scheme, shown separately of the elements connecting line mechanical connection, indicating that they belong to the same element. In this case, the tagging elements put down one or both ends of the line of mechanical connections. 3.25. The depiction of individual elements of devices at different locations in the tagging of these items should be included tagging device to which they belong, for example, = A3-C5 - C5 condenser, part of the unit A3. 3.26. Spaced at the image of a functional group (if necessary, and when combined method) to the tagging elements included in this group should include the designation of functional groups, for example, ? T1-C5 - C5 condenser, part of a functional group T1. 3.27. When a single-line image about one conditional graphical notation that replaces several conventional graphic symbols of identical elements or devices to indicate positional notation of all these elements or devices. If the same elements or devices are not all circuits shown single line, the right of the tag or below it in the brackets indicate the designation of chains, which contain these elements or devices (see Fig. 3). 3.28. On the concept should be clearly defined and all elements and devices included in the product and depicted in the diagram. Data about the elements must be recorded in the list of elements. The connection list for conditional graphical notation elements should be done through tagging. Permitted in certain cases specified in state or industry standards, all the information about elements placed around conventional graphic symbols. 3.27, 3.28. (Revised edition, Alt. № 3). 3.29-3.33. (Deleted, Mod. № 2). 3.34. When entering the complex, such as when a device has no self-concept, includes one or more devices that are independent concepts, and (or) functional groups, or if the functional group includes one or more devices, etc. then the list of items in the column "Name" before the name of devices that do not have self-concepts, and functional groups allowed to affix a serial number (ie, like the designation of sections, subsections, etc.) within the entire scheme of the product (Fig. 9a). If the scheme in the tag element includes a positional notation system, or the designation of the functional group, the list of items in the column "Pos. designation "indicate tag element without tag device or mark the functional group. (Revised edition, Alt. № 2). 3.35. (Deleted, Mod. № 2). 3.36. When referring to some conventional graphic symbols face values ??of resistors and capacitors (Fig. 11) is supposed to apply a simplified way to represent units of measurement: for resistors from 0 to 999 ohms - without specifying the units, from 1.103 to 999,103 ohms - in kiloomah labeled units to lowercase, from 1.106 to 999,106 ohms - in megaomah with units of measurement to a capital letter M, more than 1.109 Ohm - at gigaomah with units of measurement to a capital letter T, for condensers from 0 to 9999.12 -12 F - in picofarads without specifying the units, from 1.10 -8 to -6 9999.10 F - in microfarads with units of measurement to lowercase microns. 3.37. The diagram should indicate the designation leads (contacts) elements (devices), marked on the product or set in their documentation. If a design element (device) and in its documentation the notation leads (pins) are not specified, allowed conditionally assign them to refer to the scheme by repeating them in the future in the relevant design documents. A conditional assignment notation conclusions (contacts) in the field circuit is placed an appropriate explanation. When the image on the scheme of multiple identical elements (devices) designation leads (contacts) can specify one of them. When the image of a spaced identical elements (devices), the findings indicate (contact) point to each part of the element (device). For differences in the naming scheme of deductions (contacts) from other symbol (chains, etc.) is allowed to record the notation leads (contacts) with a qualifying symbol in accordance with the requirements of GOST 2,710. 3.38. When an image component or device spaced way inscription is placed around one part of the product or on the circuit around the image component or device, made combined way. (Revised edition, Alt. № 2, 3). Damn. 9a * ___________ * Damn. 6-9. (Deleted, Mod. № 2). Damn. 11 * _________ * Damn. 10. (Deleted, Mod. № 2). 3.39. The scheme should specify the characteristics of input and output circuits products (frequency, voltage, amperage, resistance, inductance, etc.), as well as the parameters to be measured at the control contacts, sockets, etc. If you can not specify the characteristics or parameters input and output circuits of the product, it is recommended to specify the name of circuits, or controlled variables. (Revised edition, Alt. № 2). 3.40. If the product is obviously designed to work only in a certain product (installation), then the scheme can specify the address of external connections of input and output circuits of the product. Address must ensure the uniqueness of accession, for example, if the output pin and must be connected with the fifth contact, the third connector device A, the address should be written as follows: = A - A3: 5. Damn. 12 Damn. 13 can specify the address in general terms, if the uniqueness of the connection will be provided, for example, "Device A". 3.41. Characteristics of input and output circuits of the product and addresses of their external connections is recommended to record in a table, placed instead of conventional graphic notation of input and output elements - connectors, boards, etc. (Fig. 12). Each table is assigned tag element instead of conventional graphic symbols of which it is placed. Above the table is allowed to specify a conditional graphical notation of contact - socket or pin. Tables are allowed to perform spaced manner. The order of the contacts in the table is determined by the ease of constructing the scheme. Allowed to put a table with the characteristics of chains in the presence of the scheme conditional graphical notation of input and output elements - connectors, boards, etc. (Fig. 13). Similar tables is recommended to place the lines depicting the input and output circuits and ending on the scheme connectors, cards, etc. In this case, the tag table is given. Notes: 1. If there are multiple tables on the scheme allowed the head table result in only one of them. 2. In the absence of the characteristics of the input and output circuits, or the addresses of their foreign connection in the table do not lead to a graph with this data. If necessary, be allowed to enter the table additional columns. 3. Allowed to affix in the column "Cont." Few serial numbers of contacts in case they are connected. Pin numbers separated by commas. 3.40, 3.41. (Revised edition, Alt. № 2). 3.42. When the image on the scheme and multiple connectors are allowed to use conventional graphic symbols are not showing individual contacts (GOST 2.755). Connection information contact connectors indicate one of two ways: some images of the connectors on the open field circuit or in the subsequent sheets scheme put tables, which indicate the address of the connection [designation of the chain (Fig. 14a) and (or) the tagging elements are joined to this contact (Fig. 14b)]. If necessary, the table indicates the characteristics of chains and links to external connections (Fig. 14a). If the tables are placed on the field circuit or in the subsequent pages, then they are given a tag connector, to which they are made. and - a table, placed on the free-field circuit or in the subsequent sheets circuit b - a table, placed close to an image connector Damn. 14 In the column of the table indicate the following: Under "Cont." - Number of the contact connector. Pin numbers written in ascending order, in the "Address" - marking the chain, and (or) the tagging elements connected to the contacts, in the "chain" - the characteristics of the circuit, in the "external address" - the address of the external connection, connection to contacts Connector depict spaced manner (Fig. 15). Damn. 15 NOTE: 1. Points connected dashed line with the connector, refer to connect to corresponding contacts of the connector. 2. If necessary, the characteristics of chains placed on the free-field scheme of continuation lines. (Revised edition, Alt. № 2, 3). 3.43. When the image elements of the scheme, whose parameters are selected at the regulation, about tagging these elements on the diagram and the list of items affix an asterisk (eg R1 *), and the scheme field put the footnote: "* is selected at the regulation." The list must be written to the elements, whose parameters are closest to the calculated ones. Permitted the selection of limit values ??of parameters of elements indicated in the list under "Note." If the option to be selected at the regulation provided by different types of elements, these elements are listed in the specifications on the field and, in the columns list of elements indicate the following: Under "Name" - the name of the item and the option closest to the settlement, in the "Note" - a reference to the relevant paragraph of the technical requirements and allowed the selection of limiting values. 3.44, 3.45. (Deleted, Mod. № 2). 3.46. If a parallel or serial link implemented for a certain parameter (capacitance or resistance of a certain size), then the list of items in the column "Remarks" indicate the total (total), the parameter elements (eg R = 151 ohms). 3.47. (Deleted, Mod. № 2). 3.48. When the image device (or devices) in the form of a rectangle is allowed in a rectangle instead of conventional graphic notation of input and output elements to put a table with the characteristics of the input and output circuits (Fig. 18), and outside the rectangle are allowed to put a table showing the addresses of external connections (Fig. 19 ). If necessary, be allowed to enter in the table additional columns. Damn. 18 * ___________ * Damn. 16, 17. (Deleted, Mod. № 2). Damn. 19 Each table is assigned tag element instead of conventional graphic symbols of which it is placed. In the table instead of the word "Cont." May be completed using the graphical notation of contact connector (see fig. 19); on the scheme products in boxes, depicting the device is allowed to place structural or functional circuit devices, either totally or partially repeating their concepts. Elements of these devices in the list of items not recorded. If a product contains multiple identical devices, the circuit device is recommended to place on the free-field circuit products (not in box) with an appropriate inscription, for example: "The scheme of blocks A1-A4. (Revised edition, Alt. № 2). 3.49-3.51. (Deleted, Mod. № 2). 3.52. On the field circuit is allowed to put instructions on the stamps, the sections and colors of wires and cables (stranded wire, electrical cords), which must be performed combining the elements as well as guidance on specific requirements for electrical installation of this product. (Revised edition, Alt. № 2). 4. RULES FOR THE IMPLEMENTATION OF SCHEMES Compounds 4.1. On the wiring diagram should be shown all the devices and elements that make up the product, their input and output elements (connectors, boards, clips, etc.), as well as connections between these devices and elements. 4.2. Devices and elements in the diagram represent: the device - in the form of rectangles or simplified external shape, the elements - in the form of conventional graphic symbols, rectangles or simplified external shapes. When the image elements in the form of rectangles or simplified external shape may be placed inside their conditional graphical notation elements. Input and output elements is portrayed as a conventional graphic symbols. Allowed input and output elements represent the rules established in Secs. 3.41, 3.42 and 3.48. 4.1 and 4.2. (Revised edition, Alt. № 2). 4.3. Location graphic notation devices and elements in the scheme should correspond approximately to the actual placement of elements and devices in a product. Location images of input and output elements of or conclusions within the graphic notation and the devices or elements should approximately correspond to their actual placement of the device or element. Allowed the scheme does not reflect the location of units and components in a product, if the scheme operates on several sheets or placement of devices and elements on site are unknown. 4.4. Elements used in the product part, is allowed to portray the scheme incomplete, picture is only used in limited parts. 4.5. The scheme about graphic notation devices and elements indicate positional notation, assigned to the concept. Near or inside the graphic notation device can specify the name and type, and (or) the designation of the document based on which device is used. (Revised edition, Alt. № 2). 4.6. (Deleted, Mod. № 2). 4.7. The diagram should indicate the designation leads (contacts) elements (devices), marked on the product or set in their documentation. If the design of the device or component and its documentation for designation of input and output elements (pins) are not specified, allowed conditionally assign them to refer to the scheme by repeating them in the future in the relevant design documents. A conditional assignment notation, the input and output elements (conclusions) on the field circuit is placed an appropriate explanation. When the image on the scheme of multiple identical devices, refer to the findings can specify one of them (such as pinout of electronic devices). 4.8. Devices and components with the same external connections are allowed to represent the diagram showing the connection for one device or element. 4.9. Devices that have separate wiring diagrams depict the scheme allowed the product without showing connection wire and cable cores (stranded wires, electrical cords) to input and output elements. (Revised edition, Alt. № 2). 4.10. When the image on the scheme of connectors are allowed to apply conditional graphical notation, not showing individual contacts (GOST 2.755). In this case, about the image of the connector in the field circuit or in the subsequent sheets scheme placed a table showing the electrical connections (Fig. 20). When placing tables on the field circuit or in the subsequent sheets they are given a tag connector, in addition to which they are made. Allowed in the table to introduce additional graphs (eg data cables). If a tourniquet (cable - stranded wire, cord, a group of wires) connecting the connector contacts of the same name, the table may be placed near one end of the image bundle (cable - stranded wire, electric cable, a group of wires). If the connection information contacts are given in the connection table, the table showing the electrical connections on the circuit, there may be placed. (Revised edition, Alt. № 2, 3). Damn. 20 4.11. In the diagram, the product inside the rectangle or simplified external shape, depicting the device is allowed to represent their structural, functional or schematic diagrams. 4.12. In the absence of concept products at the connection diagram is assigned tagging devices, as well as elements not included in the schematic diagrams of the composite parts of the product, according to the rules set out in paragraphs. 3.16-3.20, and record them in a list of items. 4.11, 4.12. (Revised edition, Alt. № 2). 4.13. On the wiring diagram to show the product is allowed external wiring, according to the rules set out in paragraphs. 5.8, 5.9. 4.14. Wire, a group of wires, cords and cables (stranded wire, electrical cords) must be shown on charts of individual lines. The thickness of the lines depicting the wire bundles and cables (stranded wire, electrical cords) on the schemes shall be from 0,4 to 1 mm. To simplify the mark scheme are allowed to merge the individual wires or cables (stranded wire, electrical cords), running on the scheme in one direction, a common line. At the approach to contact each wire and conductor cable (stranded wire, electric cable) represent a separate line. Permitted lines representing wires, a group of wires, cords and cables (stranded wire, electrical cords), not to hold or pick them near the place of connection, if their image is difficult to read the schema. In these cases, the scheme places around fitting (Fig. 21) or a table at the free-field scheme (Fig. 22) put the information in an amount sufficient to ensure a clear connection. Damn. 21 Damn. 22 (Revised edition, Alt. № 2, 3). 4.15. The scheme products, which includes more multiple elements, the lines depicting the strands (cables - stranded wire, electrical cords, a group of wires), is allowed to bring only up to the contour of the graphic notation of the element, not showing the connection to the contacts. Instructions on joining the wires or cable conductor (stranded wire, electric cable) to the contacts result in this case, one of the following ways: at the contacts show the ends of lines depicting the strands of wire or cable (stranded wire, electrical cord), and indicate their designation. Ends of lines directed toward the appropriate wiring harness, cable (stranded wire, electrical cord), a group of wires (Fig. 23); in the multi-image element is placed a table showing the electrical connections. Table join a line-callout with the appropriate wiring, cable (stranded wire, an electric cord) by a group of wires (Fig. 24). 4.16. Introductory elements through which the wire (the group of wires, harnesses, cables - stranded wire, electrical cords), is portrayed as a conventional graphic symbols specified in the standards of the Uniform system design documentation. Bushings, cable glands, glands is portrayed as a conventional graphic symbols shown in fig. 25. 4.15, 4.16. (Revised edition, Alt. № 2). Damn. 23 Damn. 24 Bushings cable glands gland a - a line representing the conductor (a group of wires, wiring, cable - stranded wire, cord) Damn. 25 4.17. The diagram should indicate the designation input elements, marked on the product. If you refer to the introductory element is not specified in the product design is permitted, conditionally assign them to refer to the wiring diagram, repeating them in the appropriate technical documentation. In this scheme put on the field the necessary explanations. 4.18. Solid wire harnesses, cables (stranded wire, electrical cords) must be designated serial numbers within the product. Wires, harnesses, cables (stranded wire, electrical cords) should be numbered separately. In this case, the wires entering into a bundle label within the bundle, and cable conductor (stranded wire, electric cable) - within the cable (stranded wire, electric cable). Notes: 1. Allowed continuous numbering of all the wires and cable cores (stranded wires, electrical cords) within the product. 2. Allowed continuous numbering of individual wires, cords and cables (stranded wire, electrical cords) within the product. In this case, the wires entering into a bundle label within the bundle, and cable conductor (stranded wire, electric cable) - within the cable (stranded wire, electric cable). 3. There may be denoted harnesses, eabeli (stranded wire, electrical cords), and individual wires, if appliances that make up the scheme, will enter the complex and indicate wiring, cables (stranded wire, electrical cords) and wires will be awarded within the entire complex. 4. Allowed to assign designations groups of wires. 4.19. If the concept of electric circuits assigned to the designations in accordance with GOST 2,709, then all the solid conductors, veins cables (stranded wire, electrical cords), and wire harnesses is assigned the same designations. In this case, bundles and cables (stranded wire, electrical cords) indicate, in accordance with the requirements of paragraph 4.18. 4.20. The scheme by letter (alphanumeric) notation can define a functional accessory wire, rope or cable (stranded wire, electric cable) to a specific complex, a room or a functional circuit. Letter (alphanumeric) symbol placed in front of the designation of each wire, rope, cable (stranded wire, electrical cord), separating it with a hyphen. In this case, the letter (alphanumeric) designation is part of the label each wire harness and cable (stranded wire, electric cable). Hyphen in the designation is allowed are not listed unless it would make ambiguity in the reading scheme. If all wires, harnesses, cables (stranded wire, electrical cords), which are shown in the diagram belong to one set, a room or a functional circuit, the letter (alphanumeric) designation does not put down, and the field circuit is placed an appropriate explanation. 4.21. 2. 4.22. 4.23. 4.24. 4.25. 2. 4.26. Note. (Revised edition, Alt. № 2). 5. 5.2. (Revised edition, Alt. № 2). 5.3. 5.4. 5.5. (Revised edition, Alt. № 2). 5.6. 5.7. 5.8. 5.9. (Revised edition, Alt. № 2). 6. 6.2. (Revised edition, Alt. № 2). 6.3. 6.4. (Revised edition, Alt. № 2). 6.5. 6.6. 6.7. (Revised edition, Alt. № 3). 6.8. Damn. 6.9. 6.10. 6.11. Note. (Revised edition, Alt. № 2). Damn. (Revised edition, Alt. № 2). 7. 7.2. 7.3. (Revised edition, Alt. № 2). 7.4. 7.5. 7.6. (Revised edition, Alt. № 2). 8. (Deleted, Mod. № 2). Developed and submitted by the State Committee of Standards Council of Ministers DEVELOPERS VR Graphical symbols in diagrams. Robot device GOST 2.755-87 Unified system for design documentation. Graphical symbols in electrical circuits. Device switching and contact connections GOST 2.756-76 * Unified system for design documentation. Graphical symbols in diagrams. Is often perceived electromechanical devices GOST 2.757-81 * Unified system for design documentation. Graphical symbols in diagrams. Elements of the switching field for switching systems GOST 2.758-81 Unified system for design documentation. Graphical symbols in diagrams. Signal Technology GOST 2.762-85 * Unified system for design documentation. Graphical symbols in electrical circuits. Frequencies and frequency bands for transmission systems GOST 2.763-85 * Unified system for design documentation. Graphical symbols in electrical circuits. Device with a pulse-code modulation GOST 2.764-86 Unified system for design documentation. Graphical symbols in electrical circuits. Integrated optoelectronic display elements GOST 2.768-90 Unified system for design documentation. Graphical symbols in diagrams.
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