9.1 Coding System of WASAC

Coding System

Standard

Version Log

Version Date Author Note

F 1 16th March 2017 Celestin MWAMBUTSA

F1 25-06-2018 M. Brouwer Added locations

別添 9

9.1 Coding System of WASAC

1 Table of Contents 1 Introduction ..................................................................................................................................... 3

2 Encoding .......................................................................................................................................... 3

3 Functional decomposition ............................................................................................................... 3

4 ANNEX I: Tables location-oriented code ......................................................................................... 6

4.1 Branch number ........................................................................................................................ 6

4.2 Location name ......................................................................................................................... 7

5 ANNEX 2: Process groups ................................................................................................................ 9

6 ANNEX 3: Process steps ................................................................................................................. 10

7 ANNEX 3: Modules ........................................................................................................................ 11

8 ANNEXES 4: Components .............................................................................................................. 11

9.1 Coding System of WASAC

1 Introduction Encoding is something like naming in the form of a code. It is not necessary, that the code also

replaces the common designations in the parlance. WASAC has chosen to naming and coding as

much as possible to distract from the functional denomination.

The code must be applied to all relevant given as core parts of the plant and then forms the means of

identification of the element and the key to all this available information. Because the encryption

system is derived from the structure of treatment plants, in the most meaningful and simple way as

possible. This document also describes the methodology of defining and clarifying the locations.

Encryption is used on Piping and Instrumentation Diagrams (P&IDs), electrical and mechanical

drawings, in controlling processes, and displaying process.

2 Encoding The encoding conforms to the following principles:

Unique design

Assigning a code expires according to a tight structure

Process oriented

The code says something about the position within the production process of the indicated

process part

Functional decomposition of processes

The encoding follows the Division of the process in functional parts.

Applicable to all current and future processes on (drinking) water locations

The structure is part of the process but gives no restrictions to the process.

3 Functional decomposition In order to be able to describe the functioning of production sites, for example for the design of the

process Automation, a breakdown structure is made of the process in functional parts (functional

decomposition). This breakdown structure continues in P&ID, process descriptions and operating

plans. By defining a functional decomposition can also clear the encoding be set up.

For the method of decomposition is chosen for the standard "Batch control" part 1: Models and

terminology (NEN-EN-IEC 61512-1), also known as "s88". Although this standard out of automating

batch processes but this system of Division is no longer apply to the processes at WASAC.

The breakdown of the process takes place in accordance with this standard in seven layers which a

corresponding WASAC names, as shown in the following table.

9.1 Coding System of WASAC

Denomination

in accordance

with

IEC 61512-1-

NEN:

WASAC

naming:

Area Location

name

Technical installation

Process cell Process

group Process name

Unit Process

step

Equipment

module

Module

Functional title Control

module

Component

The location name provides information on the location of a production or distribution location

within the organization. The location name and code is in whole WASAC unique and is sufficient to

identify the location.

The process name gives a main classification of the process. The process is divided into process

groups and process steps

A process step is an important contribution to the production process such as Raw water,

treatments or distribution.

For a good understanding, a distinction is made in primary and auxiliary (secondary) process steps. By

primary steps runs the water of Raw water towards treatment. Here may be multiple steps in

series. There may also be more steps of the same type are switched one after another, these are

then numbered in the direction of the water flow. Supporting processes work for one or more steps

in the same group. Per group are only the established steps possible. The functional title gives the

function of a part of the process from that operation.

A module is a part of a step as a filter, a pump (Group), and (between) reservoir to decoupling of

process steps. Per step there may be different module be used. For a number of steps are specific

module that can be used only in that step.

As the last decomposition there are components that can be divided into valves, measurements and

equipment. The distinction between the components is focused on the function, this is determined

by the component and not by the location of the component in the process or the medium what the

component is edited.

The encoding follows the decomposition and is divided as follows:

9.1 Coding System of WASAC

aaaa aan aann

a = alphabet letters

n = numbers digits

Location code/number

Proces group

Module + number

Component + number

Location oriented

Process oriented

a aa

Proces step

4 characters

1 character

2 + 1 characters

2 + 2 characters

2 characters

Functional oriented

nn

Branche number 2 characters

9.1 Coding System of WASAC

4 ANNEX I: Tables location-oriented code

4.1 Branch number Description code part: characters: Note:

BUGESERA 16

GICUMBI 09

GIKONDO 23

HUYE 06

KACYIRU 20

KANOMBE 25

KARONGI 12

MUHANGA 02

MUSANZE 04

NGOMA 08

MUHIMA 24

NYAGATARE 15

NYAMAGABE 11

NYAMIRAMBO 21

NYANZA 07

NYARUGENGE 26

REMERA 22

RUBAVU 03

RUHANGO 17

RUSIZI 05

RWAMAGANA 10

9.1 Coding System of WASAC

4.2 Location name

Description code part: characters: Note:

Treatment plant Byimana TPBY Gikondo (23)

Treatment plant Cyampirita TPCY Nyagatare (15)

Treatment plant Cyondo TPCO Nyagatare (15)

Treatment plant Cyunyu TPCU Rusizi (05)

Treatment plant Gihengeri TPGI Nyagatare (15)

Treatment plant Gihira TPGH Rubavu (03)

Treatment plant Gihogwe TPGO Nyarugenge (26)

Treatment plant Gihuma TPGU Muhunga (02)

Treatment plant Jali TPJA Nyarugenge (26)

Treatment plant Kadahokwa TPKA Huye (06)

Treatment plant Kanwiriri TPKN Nyagatare (15)

Treatment plant Kanyabusage TPKY Ngoma (08)

Treatment plant Karenge TPKR Kanombe (25)

Treatment plant Kimisagara TPKI Nyamirambo (21)

Treatment plant Kizanye Mpazi TPKZ Nyarugenge (26)

Treatment plant Mburabuturo TPMB Nyarugenge (26)

Treatment plant Mpanga TPMP Nyanza (07)

Treatment plant Muhazi TPMU Rwamagana (10)

Treatment plant Mutobo TPMU Musanze (04)

Treatment plant Ngenda TPNG Bugesera (16)

Treatment plant Nyagatare TPNY Nyagatatre (15)

Treatment plant Nyamabuye TPNA Gicumbi (09)

Treatment plant Nzove TPNZ Nyarugenge (26)

Treatment plant Rawasaburo TPRA Ngoma (08)

Treatment plant Rwampara TPRW Nyamirambo (21)

Treatment plant Rwasama TPRS Nyagatare (15)

Treatment plant Rwabigeyo A TPRB Nyagatare (15)

Treatment plant Rwabigeyo B TPRI Nyagatare (15)

9.1 Coding System of WASAC

Treatment plant Tovu TPTO Nyagatare (15)

Treatment plant ?? TP??

Booster pump station Kabindi BPKA Nyagatare (15)

Booster pump station Rwimondo BPRW Nyagatare (15)

Booster pump station ?? BP??

Reservoir Ntora RSNT Kacyiru (20)

Reservoir New Mt. Kigali Reservoir RSKR Nyamirambo (21)

Reservoir ?? RS??

District Meter Area (DMA) 0-99 DM01 Maximum is 99

DMA Kibagabaga DM01 Remera (22)

DMA Free Trade Zone / Masoro DM02 Remera (22)

DMA Kinyinya DM03 Remera (22)

DMA Bumbogo DM04 Remera (22)

DMA Nyarutarama DM05 Remera (22)

DMA Kimironko 1 DM06 Remera (22)

DMA Kimironko 2 DM07 Remera (22)

DMA Bibare DM08 Remera (22)

DMA Amahoro Stadium DM09 Remera (22)

DMA Nyakabanda DM10 Remera (22)

DMA Rukiri DM11 Remera (22)

DMA Nyabasindu DM12 Remera (22)

DMA Ndera DM01 Kanombe (25)

DMA Masaka & Rusheshe DM02 Kanombe (25)

DMA Kabuga DM03 Kanombe (25)

DMA Samaduha DM04 Kanombe (25)

DMA Gasogi DM05 Kanombe (25)

DMA Gishore DM06 Kanombe (25)

DMA Gako & Ayabaraya DM07 Kanombe (25)

DMA Kamashashi & Nyarugunga DM08 Kanombe (25)

DMA Buanza DM09 Kanombe (25)

9.1 Coding System of WASAC

DMA Kabeza DM10 Kanombe (25)

DMA Rwimbogo & Nonko DM11 Kanombe (25)

DMA Muyumbu DM12 Kanombe (25)

Location code:

The location code consists of 6 letters and/or numbers, they are combined from the list with branch

numbers and location names. This combination is unique.

On the same site multiple processes are possible. Also it may be that there are different types are

present in the same location (e.g. a water tower on a water treatment location) the location will then

get the broadest indication (in the example, so water treatment).

The numbering of the DMAs (District Meter Areas) are rising to a maximum of 99.

5 ANNEX 2: Process groups Description code: characters: Note:

Raw water R

Boreholes B

treatment T

Distribution D

Chemicals C

General G

9.1 Coding System of WASAC

6 ANNEX 3: Process steps Description PROCESS STEP

Procesgroup Raw water: ---

Raw water transport RT

River RV

Raw water reservoir RR

Water hammer tank WH

Dam DM

Procesgroup treatment: ---

Disinfection DI

Filtration FT

Clarifier CF

Treatment supporting ---

Hypochlorite make HM

Chlorine make CM

Disinfection DS

Backwashing BW

Algae floc dosing1 AF

Process Group Distribution: D ---

Treated water transport TT

Treated water reservoir TR

Disinfection DS

Meter chamber MC

Water hammer tank WH

General: G

Common elements CE

9.1 Coding System of WASAC

Description PROCESS STEP

Electrical supply ES

7 ANNEX 3: Modules Description MODULE

River RVx

Raw water intake RIx

Mixing chamber MCx

Dosing DOx

Clarifier CFx

Lamella separator LMx

Filter FLx

Quality monitoring QMx

Pipe PPx

Pump group PGx

Distribution group DGx

Reservoir RSx Also Sump and tank

Tank TKx

Unit UNx Also: merged unit

Lagoon LGx rinse water pond

Water tower WTx

Dam DMx

Customer meters CMx

Meter Chamber MCx

8 ANNEXES 4: Components Name Component

Valves:

9.1 Coding System of WASAC

Electrical operated valve EVxx

Manuel operated valve MVxx

Pneumatic operated valve PVxx

Measurements:

Pressure indicator PIxx

Pressure transmitter PTxx

Pressure switch PSxx

Level indicator LIxx

Level transmitter LTxx

Level switch LSxx

Ph-transmitter POxx

Quality instrument QIxx

Chlorine instrument CIxx

Turbidity instrument TIxx

TDS instrument DIxx

Conductivity sensor GOxx

Hardness sensor HOxx

Oxygen sensor ZOxx

Flow indicator FIxx

Flow transmitter FTxx

Flow meter pulse FQxx

Flow switch FSxx

Secondary:

Energy monitoring EMxx

Intrusion detector IBxx

Current measurement IMxx

9.1 Coding System of WASAC

Power measurement PMxx

Temperature measurement TMxx

Voltage measurement UMxx

Regulator XRxx

UPS UPxx

Data logger (RTU/PLC) DLxx

Tools:

Centrifuge CFxx

Air compressor ACxx

Pump PPxx

Mixer MXxx

Dosing pump DPxx

Scraper SPxx

Hypochlorite generator HGxx

Secondary:

Transformer TFxx

UPS unit UPxx