KKS-Application
Explanations
Part A
KKS- Identification
System for Power
Stations
VGB-B 106A E
Edition 2004
Published by: VGB PowerTech e.V. Obtainable from: VGB PowerTech Service GmbH
Verlag technisch-wissenschaftlicher Schriften Postfach 10 39 32, D-45039 Essen
Phone: +49-(0)2 01 81 28-200 Fax: +49-(0)2 01 81 28-329 e-mail: [email protected]
http://www.vgb.org
Reproduction is only permitted with prior permission by VGB.
Preface to the KKS Application Explanations, issue 2004
With the edition 2004 the layout was adapted on the form used by “VGB PowerTech Service GmbH” since the year 2000 and the text of the Application Explanations B 106 was converted to standardized electronic formats.
The VGB Technical Committee “Technical Classification Systems”, often specified in the “KKS Application Explanations”, became to the Working Panel “Reference Designation and Plant Documentation” due to the structural changes of VGB in the last years.
A project team, specially installed by the Working Panel, provided also the "KKS Application
Explanations for Hydro-Power Plants" which was published in the year 2004. These specific Application Explanations of Hydro-Power, published as B106 D1 supplement the existing explanations around the special interests of the Hydro-Power plants and create the basis for a more efficient engineering and project completion in this field of activity.
Correct application of the KKS is the condition that unique identification and rational function in the desired measure is reached. The Application Explanations are supplements to the KKS Guidelines and are intended to give assistance in use of the identification system.
Following overview shows the connection between the KKS Definitions and KKS Applications. Essen, in September 2004
KKS- Rules
KKS-
Guidelines KKS-keys - Function - Equipment - unit - Component Equipment unit and component Code reference list Compilation „Arrangements between the parties involved in the project“ Part A General KKS Application Explanations DIN/KKS Comparison KKS- Application Explanations Part B
Engineering discipline specific KKS application explanations B1 Mechanical engineering B2 Civil engineering B3 Electrical and instrumen- tation B4 Instrumentation in process engineering Part C Subject specific Classification examples (publication later) Part D
Type of Power Plant specific KKS- Application Explanations D1 Hydro-Power Plants
Contents
1 Structure and Scope... 5
2 Format of Code ... 6
2.1 Types of Code and Breakdown Levels ... 6
2.2 Examples of Types of Identification ... 9
2.2.1 Process-Related Identification... 9
2.2.2 Point of Installation Identification ... 13
2.2.3 Location Identification... 16
2.3 Prefix Symbols and Breakdown Symbols for Types of Code ... 17
2.4 Format of Breakdown Levels ... 18
2.4.1 Classifying Code Elements... 18
2.4.2 Numbering Code Elements ... 19
3 Contents of Data Characters... 20
3.0 Total Plant... 20
3.1 Process-Related Identification ... 22
3.1.1 System Code... 23
3.1.2 Equipment Unit Code ... 34
3.1.3 Component Code ... 41
3.2 Point of Installation Identification ... 44
3.2.1 Installation Unit Code ... 45
3.2.2 Installation Space Code ... 47
3.3 Location Identification ... 48
3.3.1 Structure Code ... 49
1
Structure and Scope
The Application Explanations show the many possible ways of using KKS to fulfil the various identification requirements of the engineering disciplines. The application explanations are also structured in keeping with these requirements.
The Application Explanations, which give examples on the use of KKS, contain detailed descriptions for the various engineering disciplines and are subdivided as follows:
Part A: General KKS application explanations
Part B: Engineering discipline-specific application explanations Part B1: Identification in mechanical engineering Part B2: Identification in civil engineering
Part B3: Identification in electrical and control and instrumentation
engineering
Part B4: Identification of control and instrumentation tasks/functions in process systems and identification of functions in control and instrumentation systems
Part C: Engineering discipline-specific identification examples Part A: General KKS application explanations
Part B1 Identification in mechanical engineering Part B2 Identification in civil engineering Part B3 Identification in electrical and con-trol an instrumen-ting engineering
Part B4
Identification of control and instrumentation tasks/functions in process systems and identification of functions in control and instrumentation systems
The present Part A comments on applications, which are common to all engineering disciplines, Parts B1 - B4 on engineering discipline-specific applications.
2
Format of Code
2.1 Types of Code and Breakdown Levels
In consideration of the various requirements placed on the identification of plants, sections of plants and items of equipment in power stations, KKS has three different types of code:
Process-related code
Process-related identification of systems and items of equipment according to their functions in mechanical, civil, electrical and control and instrumentation engineering
Point of installation code
Identification of points of installation of electrical and control and instrumentation devices in installation units (e.g. in cabinets, panels, consoles)
Location code
Identification of locations in structures, on floors and in rooms and also of fire areas and topographical stipulations (surface area grid)
These three types of code use the same identification scheme, which is subdivided into four breakdown levels. Originally the titles of the breakdown levels were based on the process-related code:
Serial no. of
breakdown level 0 1 2 3
Titel of breakdown
level Total plant Function Equipment unit Component
The titles of the breakdown levels of the three types of code will be as follows:
Serial no. of
breakdown level 0 1 2 3
Process-related
identification Total plant System code Equipment unit code Component code
Point of installation
identification Total plant Installation unit code space code Installation
Location
The synopsis overleaf shows the following relationships: - Examples of types of code and breakdown levels
- Correlation of the examples with the engineering disciplines
- Correlation of the examples with the individual parts of the application explanations
Of particular importance is the process-related code. It is used by all engineering disciplines, whether mechanical, civil, electrical or control and instrumentation engineering. As is apparent from the synopsis, it is possible to combine items from different engineering disciplines in one code, for example:
Serial no. of
breakdown level 0 1 2 3
Civil engineering engineering Mechanical engineering Electrical
Structure; floor Rolling door Motor
Mechanical
engineering InstrumentationControl and
Control and Instrumentatio
n System Measuring circuit Transducer
Electrical
engineering engineering Mechanical engineering Electrical
Transformer Fan unit Motor
2.2 Examples of Types of Identification 2.2.1 Process-Related Identification
The process-related code serves to identify systems, plants, sections of plants and items of equipment according to their tasks in the power station process. It is used by all engineering disciplines.
The examples below illustrate applications in mechanical, civil, electrical, control and instrumentation engineering. The examples also demonstrate combinations of code elements from the various engineering disciplines within a code.
Example 1: Identification of a pump in a process-related system
Breakdown level 0 1 2 3
Total plant System code Equipment unit code Component code
Example Unit Spray deluge system Pump unit Pump
Example 2: Identification of drive motor of a rolling door in a structure
Breakdown level 0 1 2 3
Total plant System code Equipment unit code Component code
Example Unit Turbine buil-ding floor Rolling door Motor
Example 3: Identification of a fuse in low-voltage switchgear
Breakdown level 0 1 2 3
Total plant System code Equipment unit code Component code
Example 4: Identification of a fan motor on a transformer
Breakdown level 0 1 2 3
Total plant System code Equipment unit code Component code
Example Unit transformer Start-up Fan unit Motor
Example 5: Identification of a terminal block in a junction box in a structure
Breakdown level 0 1 2 3
Total plant System code Equipment unit code Component code
Example Unit Turbine buil-ding, floor Junction box Terminal block
Example 6: Identification of a gauge in a process-related system
Breakdown level 0 1 2 3
Total plant System code Equipment unit code Component code
Example Unit Spray deluge measu. circuit Pressure Gauge
Example 7: Identification of a manual command pushbutton in a functional group control system
Breakdown level 0 1 2 3
Total plant System code Equipment unit code Component code
2.2.2 Point of Installation Identification
The point of installation code serves to identify the installation units and installation spaces of electrical and instrumentation and control facilities and equipment.
Example 8: Identification of a medium-voltage switchgear cubicle breakdown level
Breakdown level 0 1 2
Total plant Installation unit code
Example Unit Medium-volt, switchgear •
In this instance, subdivision of the installation unit into installation spaces is unnecessary. Breakdown level 2 and the "full stop" breakdown symbol are thus not used.
Example 9: Identification of installation space of a plug-in unit in a low-voltage switchgear cubicle
Breakdown level 0 1 2
Total plant Installation unit code Installation space code
Example Unit Low-voltage switchgear • Tier, space
Example 10: Identification of installation space in an electronic equipment cabinet breakdown level
Breakdown level 0 1 2
Total plant Installation unit code Installation space code
Example 11: Identification of a coordinate on a control console breakdown level
Breakdown level 0 1 2
Total plant Installation unit code Installation space code
Example Unit Control con-sole/section • Coordinate
2.2.3 Location Identification
The location code serves to identify structures, floors, rooms and fire areas in order to provide unique addressing of the locations of plants, sections of plants an items of equipment in power stations.
The location code is used by all engineering disciplines, whether mechanical, civil, electrical, control and instrumentation engineering.
Example 12: Identification of a room in a boiler house breakdown levels
Breakdown level 0 1 2
Total plant Structure code Room code
2.3 Prefix Symbols and Breakdown Symbols for Types of Code
The types of code are distinguished in accordance with DIN 40719, Part 2, by means of prefix and breakdown symbols.
Serial no. of
breakdown level 0 1 2 3
Process-related
identification = Total plant System code Equipment unit code Component code
Point of installation
identification + Total plant Installation unit code • space code Installation
Location
identification + Total plant Structure code Room code
Prefix symbol Breakdown symbol
The prefix symbols are necessary because in some applications the same code letters are used on breakdown level 1 for different types of code; consequently confusion is possible if prefix symbols are not entered. The prefix symbols may be omitted if the code remains unique, due to the use of formatted notation in flow diagrams, for example. In the point of installation code the " • " breakdown symbol is placed between breakdown levels 1 and 2.
Example:
Process-related code: Cooling unit in cabinet = CHA04 AH001 Point of installation code: Installation space in cabinet + CHA04.AH001 The " • " breakdown symbol is necessary for positive distinction between types of code and therefore must always be written. Explanations on this are given in Part B3.
2.4 Format of Breakdown Levels
The code is made up of breakdown levels. The individual breakdown levels are differently formatted. They are made up of classifying and numbering code elements. The latter consist of data characters occupied by alpha and numeric symbols.
Serial no. of breakdown level 0 1 2 3 Designation of data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN Type of data character A or N N A A A N N A A N N N A A A N N
A = Alpha characters (Roman letters except I and O, and special symbols) N = Numerical characters (Arabic numerals)
The breakdown levels and the data characters within the breakdown levels denote pro-gressively smaller entities from left to right.
Read from left to right no data characters may be omitted. Special guidelines apply to data characters G, F0 and A3 .
2.4.1 Classifying Code Elements
The alpha code elements F1, F2, F3, A1, A2 and B1, B2 have a classifying function.
Serial no. of breakdown level 0 1 2 3 Designation of data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN Type of data character A or N N A A A N N A A N N N A A A N N Maingroups F1 Groups F2 Subgroups F3 Maingroups A1 Subgroups A2 Maingroups B1 Subgroups B2
The classifying coding letters and designations are established on a non-project-specific basis in the KKS keys as follows:
- Function key, for F1 / F1 F2 / F1 F2 F3 on breakdown level 1
- Equipment unit key, for A1 / A1 A2 on breakdown level 2
- Component key, for B1 / B1 B2 on breakdown level 3
The terminology of the key may be modified on a project-specific basis but only provided that the contents are not altered. Modifications to be specified between the parties to the project. "Blocked" coding letters are reserved for future technologies and new systems engineering configurations. They may only be allocated and released by the VGB Techni-cal Committee on TechniTechni-cal Classification Systems.
The letters of the alphabet are divided up between the main groups A1 and B1. For this
reason certain letters may not be used within each group.
2.4.2 Numbering Code Elements
The code elements G, F0,FN,AN, A3 and BN have a numbering function.
Serial no. of breakdown level 0 1 2 3 Designation of data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN Type of data character A or N N A A A N N A A N N N A A A N N
These numbering code elements are subject to agreement on a project-specific basis and between the parties to the project as regards numbering systems and direction of numbering. However, the following principles apply:
As a rule numbering starts anew when one of the preceding code elements changes. Numbering may be consecutive or grouping. Numbering need not be continuous.
Numbering conventions, once established, may not be altered, not even in the event of changes made in the progress of planning.
Redundant zeros must be written, except as modified below.
An application-specific scheme of numbering may be established. However, such schemes may not have the effect of reserving numbers in other applications, not even within the same engineering discipline.
The subject of numbering systems is dealt with individually for the engineering disciplines in Parts B1 - B4. Statements on the direction of numbering are made below in the sections "Total Plant" and "Prefix Symbols" in the present Part A.
3
Contents of Data Characters
3.0 Total Plant Serial no. of breakdown level 0 1 2 3 Designation of data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN Type of data character (A or N) N A A A N N A A N N N A A A N N Total PlantBreakdown level 0 identifies - Power station units - Non-unit-specific plants - Extensions
on the site of a power station irrespective of the three types of code. This code, where used, has to be specified between the parties to the project with respect to:
- Contents
- Type of data character (A or N) - Direction of numbering
Use of an alpha symbol for the data character of breakdown level 0 is recommended since the next data character F0 (prefix number of breakdown level 1) is numeric.
Project-specific local factors are crucial to the direction of numbering (or lettering). The direction of numbering for breakdown level 0 should be established jointly with that for the prefix number of breakdown level 1 (q.v.).
The directions of numbering are subject to agreement between the parties to the project prior to the start of identification. However, standard identification schemes take priority. The direction of numbering may be established on the basis of the following considerations:
• Direction of flow of - materials
- energy
• Direction of view from a defined standpoint, for example - from left to right
- from bottom to top - from front to rear - from inside to outside • Points of the compass • Directions of extension • Cartesian coordinates • Polar coordinates • Priorities
Breakdown level 0 may be omitted if the code remains unique. This has to be specified between the parties to the project.
The "total plant" breakdown level is identical for all three types of code in all engineering disciplines. It is therefore not dealt with in Parts B1 - B4 of the application explanations.
3.1 Process-Related Identification
Process-related identification of systems and items of equipment according to their func-tions in mechanical, civil, electrical and control and instrumentation engineering.
Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = (A or N) (N) A A A N N A A N N N (A) A A N N
Prefix symbol
for process -related code
Prefix number for system code
Numbering of similar systems and plants in the parts of a power station identified on breakdown level 0
System classification
Classification of systems and plants as per KKS Key
System numbering
Numbering subdivision of systems and plants into subsystems and sections of plants
Equipment unit classification
Classification of mechanical equipment, electrical and control and instrumentation equipment as per KKS Key
Equipment unit numbering
Numbering of mechanical equipment, electrical and control and instrumentation equipment
Additional code
for the equipment unit code
Component classification
Classification of components, signals or signal applications as per KKS Key
Component numbering
Numbering of components, signals or signal applications
The data characters in parentheses () may be omitted if the code remains unique. This has to be specified between the parties to the project.
3.1.1 System Code 3.1.1.1 Prefix Number Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = A or N N A A A N N A A N N N A A A N N
Prefix number for system code
Numbering similar systems and plants referring to F1 - F3
Within the parts of a power station identified on breakdown level 0 the prefix number ap-plies only to the system or plant which is classified in the subsequent alpha data charac-ters. Where multiple identical or similar self-contained systems or plants are identified by the classifying part of the system code (F1 F2 F3), they are consecutively numbered by
means of the prefix number. Each prefix number applies to the addressed system only. The prefix number must be written in all codes for the system concerned. The prefix number is not an alternative to the numbering entered inFN or the identification given on
breakdown level 0.
Use of the prefix number has no effect on the systematics of identification in the other data characters. If there is a risk of confusion between data characters G and F0 in the
event of incorrect notation of KKS relative to the data characters, F0 should be written as
well.
Details of application to be specified between the parties to the project particularly with respect to standard identification conventions.
The rules for the prefix number apply in principle to all three types of identification: - Process-related identification
- Point of installation identification - Location identification
and to all engineering disciplines: - Mechanical engineering - Civil engineering
- Electrical engineering
- Control and instrumentation engineering
For this reason the commentary on the prefix number is not repeated in the application explanations for the other types of identification in Part A or in the application explanations contained in Parts B1 - B4.
Prefix numbering relating to F1
1
System code F0 F1 F2 F3 FN
Example 14: 2 half-duty boilers in one unit
Conventional heat generation 1
The prefix number may be used in this manner to number systems and plants from other main groups F1 given in the function key. Use of the prefix number is subject to
agreement between the parties to the project.
Prefix numbering relating to F2
1
System code F0 F1 F2 F3 FN
Example 15: Generators in a two-set tandem-compound turbine plant
Generator plant 1 In a two-set plant
1 System code F0 F1 F2 F3 FN 1 H 1 System code F0 F1 F2 F3 FN 1 M K
Example 16: Several generator plants in a combined-cycle unit
Generator plant 1 in combined-cycle plant
The number of generator plants in a power station unit governs use of the prefix number. The prefix number (F0) in the example therefore identifies the following generator plants:
1MK . Generator plant 1 with gas turbine plant 1 2MK . Generator plant 2 with gas turbine plant 2 3MK . Generator plant 3 with steam turbine plant 1 System code F0 F1 F2 F3 FN 1 M K
Example 17: 2 feedwater pump turbines
Steam turbine plant 1 of feedwater pump system
1 System code F0 F1 F2 F3 FN
Example 18: 4 emergency diesel generating systems
Generator plant 1 of emergency diesel generating system
Prefix numbering relating to F3
1
System code F0 F1 F2 F3 FN
Example 19: 2 cooling tower structures in one unit
Conventional heat generation 1
The prefix number may be used in this manner to number systems and plants from other main groups F1 given in the function key. Use of the prefix number is subject to
agreement between the parties to the project.
1 System code F0 F1 F2 F3 FN 1 X K 1 System code F0 F1 F2 F3 FN 1 U R A
3.1.1.2 System Classification Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = A or N N A A A N N A A N N N A A A N N
System classification
Classification of systems and plants as per KKS Key
Coding letters and designations of the main groups F1 as given in the Function Key:
A Grid and distribution system
B Power transmission and auxiliary power supply
C Instrumentation and control equipment
D Instrumentation and control equipment (for use only when the function keys CM to CT are insufficient for the identification)
E Conventional fuel supply and residues disposal
F Handling of nuclear equipment
G Water supply and disposal
H Conventional heat generation
J Nuclear heat generation
K Nuclear auxiliary system
L Water, steam, gas cycle
M Main machine set
N Process energy supply for external users (e.g. district heating)
P Cooling water system
Q Auxiliary system
R Gas generation and treatment
S Ancillary system
T blocked
U Structure
V blocked
W System for regenerative-energies
X Heavy machinery
Y blocked
Z Workshop and office equipment
Example 20: System codes in a coal-fired power plant
Example 21: System codes in nuclear heat generation
The path for looking up from data character F1 to data characters F2 and F3 and the
applicable interfaces and gaps is as follows: (examples/extracts from the Function Key)
Interfaces:
The relevant pages of the Function Key show the interface definitions with the meanings given below:
"from incl." means "including" the named item "from excl." means "excluding" the named item "to excl." means "excluding" the named item "to incl." means "including" the named item
Gaps:
A number of coding letters in main groups F1 groups F2 and subgroups F3 have been
reserved, for example to allow inclusion of future technologies. In main groups A1 and B1,
as well as in some subgroups, some coding letters have also been reserved. All reserved coding letters may only be allocated with the agreement of the VGB Technical Committee on Technical Classification Systems.
In the Function Key it is not possible to make generally valid rules for certain coding letters in data characters F2 and F3 since they depend exclusively on the configurations
and arrangements concerned. Similar considerations apply to A1 = E and G in the
Equipment Unit Key. In such cases a remark with the following meaning appears in the key part concerned:
"...free for use for" i.e. the letters thus annotated may be used within the terms of the stated definitions
or
"...free for use" i.e. unreserved letters may be used without any restrictions within the terms of the stated definitions in F1 resp. F2
In Main Group F1 = U for structures, the F3 subdivisions for groups:
• The rules for UA to UX are not binding but are merely suggestions for coding. Definite subdivisions, even for F3 coding letters not mentioned in the Function Key,
are subject to agreement between the parties to the project prior to the start of identification.
• The rules for UX and UZ are binding.
3.1.1.3 System Numbering Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = A or N N A A A N N A A N N N A A A N N
System numbering
Numbering subdivision of systems and plants into subsystems and sections of plants Numbering starts anew when one of the preceding code elements changes. TheFN code
element has no generally-applicable classifications. Redundant zeros must be written. Details of application to be specified between the parties to the project.
The rules below also apply to the direction of numbering in FN:
• In process-related identification the direction of flow takes priority over local conventions for orientation, for example. (Combinations with numbering conventions according to direction of flow and local features give rise to conflicts at intersections, e.g. of parallel pipe trains.)
• The direction of numbering of standardized identification conventions for plants may only be established in accordance with non-project-specific considerations. (Superposition of directions of numbering according to project-specific and local considerations usually destroys the standardized identification convention.)
3.1.2 Equipment Unit Code Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = A or N N A A A N N A A N N N A A A N N
Equipment unit classification
Classification of mechanical equipment, electrical and control and instrumentation equip-ment as per KKS Key
Coding letters and designations of the main groups A1, as given in the Equipment Unit
Key:
A Mechanical equipment
B Mechanical equipment
C Direct measuring circuit
D Closed-loop control circuit
E Analog and binary signal conditioning
F Indirect measuring circuit
G Electrical equipment
H Subassembly of main and heavy machinery
J Nuclear assembly
The subdivisions in A2 are given in the applicable Equipment Unit Key. Main group A1 = H
may only be used in connection with the main groups of the system code F1 = M "Main
machine set" and F1 = X "Heavy machinery".
The subgroups of main groups E and G are not all stipulated on a generally valid basis since their format and contents depend on the electrical and control and instrumentation hardware used for the individual application. These subgroups are subject to agreement between the parties to the project.
The path for looking up items in the Equipment Unit Key is governed by the same rules as that for the Function Key. Unused A1 and A2 data characters may only be reserved by
3.1.2.1 Equipment Unit Numbering Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = A or N N A A A N N A A N N N A A A N N
Equipment unit numbering
Numbering of mechanical equipment, electrical and control and instrumentation equipment
Redundant zeros must be written.
Details of application to be specified between the parties to the project.
Example 24: Process-related identification of an LP turbine rotor
Example 26: Process-related identification of rotating assembly of a generator plant
3.1.2.2 Additional Code Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = A or N N A A A N N A A N N N (A) A A N N
Additional code
for the equipment unit code
The additional code is used for the numbering of:
- Pilot valves and overpressure protection equipment - Multiple supplies for electric loads
- Measuring circuits which share one sensor
The additional code is not an alternative code for the components identified under break-down level 3.
Examples of how to use the additional code in the mechanical, electrical and control and instrumentation engineering disciplines are given together with particular instructions in Parts B1, B3 and B4.
3.1.3 Component Code Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = A or N N A A A N N A A N N N A A A N N
Component Classification
Classification of components, signals or signal applications as per KKS Key
Coding letters and designations of main groups B1 for components as given in the
Com-ponent Key and for signals and signal applications:
- Electrical component (to DIN 40719, Part 2)
K Mechanical component
M Mechanical component
Q Instrumentation and control component (non-electrical)
X Signal origin -
Y Signal application
Z Gated signal
Subdivisions in B2 for components are given in the applicable Component Key.
No generally valid rules have been established for subdivisions for "signals and signal applications" since such subdivisions depend on the design of the control and
instrumentation systems. The subgroups have to be specified between the parties to the project.
3.1.3.1 Component Numbering Serial no. of
breakdown level 0 1 2 3
Title of
breakdown level Total plant System code Equipment unit code Component code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3 B1 B2 BN
Type of data
character = A or N N A A A N N A A N N N A A A N N
Component numbering
Numbering of components, signals and signal applications Redundant zeros must be written.
There are no generally valid rules for the systematics of numbering conventions.
Two examples of component identification are given below. Breakdown levels 0 and 1 are not included since the components can be combined in any form with codes from the various engineering disciplines; for example, the fan as a mechanical component is used both in mechanical engineering itself and also in civil, electrical, control and instrumentation engineering applications. Examples of the identification of signals and signal applications are commented on in Parts B3 and B4.
Example 28: Components in a switchgear assembly in LP switchgear
3.2 Point of Installation Identification
Identification of points of installation of electrical and control and instrumentation devices in installation units (e.g. in cabinets, panels, consoles).
Every process-related equipment unit and every measuring and control circuit requires electrical and control and instrumentation equipment. The process-related, that is, function-related, identification of such items is defined unequivocally under "Process-Related Identification". The 'point of installation code' serves to identify the points of installation of electrical components such as switches, indicators and electronic modules. This is necessary for the cabling and wiring of electrical and control and instrumentation equipment for example.
Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Installation unit code Installation space code Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + (A or N) (N) A A A N N • A (A) (N) (N) N (A)
Prefix symbol
for point of installation code
Prefix number
for installation unit code
Numbering of similar installation units in the parts of a power station
identified on breakdown level 0
Installation unit classification
Classifying subdivision of installation units, e.g. cubicles, consoles, cabinets, panels
Installation unit numbering
Numbering subdivision of installation units
Breakdown symbol "full stop" Installation space code
Vertical subdivision (rows)
of installation spaces in installation units
Installation space code
Horizontal subdivision (columns)
of installation spaces in installation units
Additional code for
installation space identification
The "full stop" breakdown symbol must always be written in order to distinguish the point of installation code from the process-related and location codes.
This type of identification applies only to electrical and control and instrumentation engineering.
3.2.1 Installation Unit Code Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Installation unit code Installation space code Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N (N) A A A N N • A A N N N A
Prefix number for installation Unit code
Numbering of similar installation units in the parts of a power station identified on break-down level 0
The prefix number applies only to the installation units addressed in the subsequent alpha characters. If it is not possible to classify all installation units in F3, the prefix
number F0may be used to supplement this classifying information. It does not constitute
an alternative to the numbering information inFN or the identification given on breakdown
level 0. Details of application to be specified between the parties to the project.
Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Installation unit code Installation space code Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N N A A A N N • A A N N N A
Installation unit classification
Classifying subdivision of installation units, e.g. cubicles, consoles, cabinets, panels Coding letters and designations of the main groups F1 as given in the Function Key:
A Grid and distribution system
B Power transmission and auxiliary power supply C Instrumentation and control equipment
D Instrumentation and control equipment (for use only when function keys CM to CT are insufficient for the identification)
The subdivisions in F2 and F3 are given in the applicable Function Key.
Special engineering-discipline-specific rules apply to installation unit classification in connection with other F1 main groups.
The classifying part of the point of installation code serves to identify hardware facilities such as switchgear, electronic equipment cabinets and control consoles. The coding letters A, B, C, D of main group F1 are identical for both process-related and point of
installation identification. Allocation of the many unreserved F2 and F3 data characters is
governed by the individual plant concept, i.e. by aspects such as auxiliary power system configuration, hardwired control and instrumentation in conventional technology or combined cabinets or programmable logic systems. Generally valid rules cannot be established.
Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Installation unit code Installation space code Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N N A A A N N • A A N N N A
Installation unit numbering
Numbering subdivision of installation units
Numbering starts anew when one of the preceding code elements changes. Redundant zeros must be written.
Details of application to be specified between the parties to the project. See Part B3 for explanations.
3.2.2 Installation Space Code Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Installation unit code Installation space code Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N N A A A N N • A (A) (N) (N) N (A)
Vertical subdivision (rows)
of installation spaces in installation units
Horizontal subdivision (columns)
of installation spaces in installation units
Additional Code
Identification of special installation locations of components or further subdivision of AN
The number of data characters is governed by the necessary degree of detail of the coor-dinate system. The data characters in parentheses () may be omitted if the code remains unique.
Deviations in accordance with DIN 40719 Part 2 are allowed and must be specified between the parties to the project.
See Part B3 for explanations.
3.3 Location Identification
Identification of locations in structures, on floors and in rooms and also of fire areas and topographical stipulations (surface area grid).
Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Structure code Room code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + (A or N) (N) A A A N N (A) (A) (N) N N (A)
Prefix symbol
for the location code
Prefix number for structure code
Numbering of similar structures in the parts of power station identified on breakdown level 0
Structure classification
Classifying subdivision of structures (outdoor area as well)
Floor numbering
Numbering subdivision of structures into floors, storeys, platforms, elevations, etc.
Room classification
Identification of rooms and fire areas
Room numbering
- Numbering of rooms an fire areas on each floor (number code) or
- Identification of grid squares on each floor (coordinate system)
Additional code
for subdivision of room number
The data characters in parentheses 0 may be omitted if the code remains unique. This must be specified between the parties to the project.
3.3.1 Structure Code Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Structure code Room code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N (N) A A A N N A A N N N A
Prefix number for structure code
Numbering of similar structures in the parts of power station identified on breakdown level 0
Each prefix number applies only to the structures classified under F1 specified between
the parties to the project.
Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Structure code Room code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N N A A A N N A A N N N A
Structure Classification
Classifying subdivision of structures (outdoor area as well)
Coding letters and designations for main groups F1 from the Function Key.
U Structure
The subdivisions into F2 and F3 are given in the applicable Function Key.
No generally binding rules have been established for the subgroups F3 of groups UA and
UX. Definitive rules to be specified between the parties to the project.
Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Structure code Room code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N N A A A N N A A N N N A
Floor numbering
Numbering subdivision of structures into floors, storeys, platforms, elevations etc.
Numbering begins anew for each structure. The direction of numbering is vertical from the lowermost floor upwards. Details of application to be specified between the parties to the project.
3.3.2 Room Code
There are 2 methods of using the room code, as follows: Identification by numbering
i.e. rooms are successively numbered for each floor Identification by means of coordinates
i.e. floors/outdoor area subdivided into coordinate systems
3.3.2.1 Room Identification by Numbering Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Structure code Room code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N N A A A N N (A) (N) N N (A)
Room classification
Identification of rooms and fire areas
Cording letters and designations for main group A1:
R Room (may be omitted if code remains unique) S Fire area (must always be written)
A2
is not used in numbered room codes
Room Numbering
Numbering of rooms and fire areas on each floor
Shafts and rooms which extend over more than one floor receive the room numbering of the lowermost floor for all elevations. The 100s character may be omitted if no structure in the total plant comprises more than 99 rooms. Is this is not the case, all room numbering codes of the total plant must be written uniformly with three data characters inAN.
Additional code
for subdivision of room number
3.3.2.2 Room Identification by Coordinates Serial no. of
breakdown level 0 1 2
Title of
breakdown level Total plant Structure code Room code
Designation of
data character G F0 F1 F2 F3 FN A1 A2 AN A3
Type of data
character + A or N N A A A N N A A (N) N N (A)
Room classification
Data character A1 = R must always be written
Coordinate on abscissa (alphanumeric)
The numeric data character may be omitted
Coordinate on ordinate (numeric) Additional code
for subdivision of grid
The dimensions of the grid squares should be established with the aid of suitably scaled coordinate systems (see DIN 1356) relative to a surveyed origin (e.g. after Gauß-Krüger). The grid sizes and the meaning and type of the data characters (A or N) must be
specified between the parties to the project.
