The KKS system is a classification system for the complete power plant and its components and provides a common language for the designer. IDENTIFICATION SYSTEM KKS Chapter I KKS Guidelines and Total Plant Key Chapter II Function Key Chapter III Equipment Unit Key Chapter IV Component. I have a query which states: One of my client using KK standard codification for P&ID In KKS Codification of P&IDs, the line tag, instrument tag and valve tag.

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Identification of the functional groups involved in process-related tasks so as to relate them to the principal task concerned may be performed by using the alpha characters in F Structure-related identification is expedient where different systems are held by shared supports.

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Component codification and identification systems|INIS

Where several mechanical systems identified differently in data characters F2 and F3 are connected to one mechanical service system, the following code letters are used for the service systems on breakdown level 1 in the data characters concerned as follows: On breakdown level 2, the individual windings are classified but not on a phase-specific basis by means of GT for transformer equipment and numbered starting on the high-voltage side.

For this purpose, data character B1 can contain: EB – Conditioning of signals related to single drive control. Room Identification by Numbering Serial no.

Measuring Circuits Measuring circuits comprise analog signal acquisition, conditioning, distribution and measured data recording and indicating processing elements. The kke character may be omitted if no structure in the total plant comprises more than 99 rooms. Special Rules for Mechanical Engineering I – 5. The prefix symbols may be omitted if the information contents of the codes remain unambiguous.


KK standard codification

However the following principles apply: Mechanical Service Systems Mechanical service systems which cofification more than one main group identified on breakdown level 1 are identified as auxiliary or ancillary systems in separate main groups F1 by means of the following coding letters: X special structures, Y bridge structures, Z ducting structures. However, such schemes may not have the effect of reserving numbers in other applications, not even within the same codificatiln discipline.

The data characters in parentheses may be omitted if the code remains unique. AL Codificatiln to cubicles, divisions, sections etc. Feed water system Control and protection system for steam, LY. Z — Workshop and office equipment These types of code are distinguished by means of prefix and breakdown symbols. Redundant zeros must be written.

A standard designation system enables each party, codificatlon of language and assignment, to identify uniformly and unambiguously, those parts of the plant within its responsibility. Component Code A component designated in breakdown level 3 is a part of equipment unit identified in breakdown level 2. Increased unit sizes, higher rates of automation and further developments in power-plant technology, coupled with the demands made on classification systematics by power plant operators, all called for a uniform and total solution of the classification problem.

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 station, KKS has three different types of code: Control and instrumentation equipment which serves more than one main group may be identified under main group C for control and instrumentation, e.


QCG Central chemical supply free for use e. Calculation of new value on base of 2 variables, e. CF means the twelfth local measuring circuit of fluid flow the code CF12 is not correct.

Equipment Unit-Specific Analog Signal Processing and Measuring Circuits Equipment oks analog signal processing elements comprise control and instrumentation equipment which is only provided for one equipment unit such as control interface, protective logics, instruments in the feeder and command termination for final control elements.

Signals and Signal Applications Breakdown level 3 is used to identify signals and their applications. System code System code consists of three letters and two digits. Equipment Unit Code Equipment Unit Code consists of two letters, three digits and sometimes one additional letter data character A3 which can be omitted. It is one digit which identifies one from two or more identical subsystems in the overall plant.

Conventional heat generation Unit control system L. Structure Code Serial no.

For example maximum of a few direct measured variables: FN numbering is governed by the following principles: These three types of code use the same identification scheme, which is subdivided into four breakdown levels.

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Coding letters and designations of the main groups A1 as given in the Equipment Unit Key: