the abc of switchboard maintenance - nesma · the abc of switchboard maintenance by mark betcherby...

THE ABC OF SWITCHBOARD MAINTENANCEMAINTENANCE

By Mark BetcherBy Mark BetcherBlacktown City Switchboards

National Electrical Switchboard Manufacturers Association

DEFINITIONSMaintenance – “ a combination of acts carried out to retain an item in or restore it to an acceptable condition”an item in, or restore it to, an acceptable condition .

Acceptable condition “ the condition in which an itemAcceptable condition – the condition in which an item is able to perform its required function and/or meet the relevant specification”.e eva t spec cat o .


DEFINITIONSNon-routine maintenancePreventative maintenancePreventative maintenance

Repair or corrective maintenancePost fault maintenanceRepair or corrective maintenanceRoutine maintenance


WHY MAINTAIN

Economics

WHY MAINTAIN

EconomicsResponsibility

AS3439.1:2002 Clause 5.3“ It is the responsibility of the owner of the ASSEMBLY to institute a system of maintenance. The manufacturer’srecommendations should be addressed, together withthe recommendations of AS2467 in a plannedthe recommendations of AS2467, in a planned preventative maintenance programme. This will minimise the risk of injury or breakdown and the f j yconsequent human suffering and/or loss of supply”.


WHAT & HOW TO MAINTAINThe Metalwork

WHAT & HOW TO MAINTAIN


WHAT & HOW TO MAINTAINThe Busbar System

WHAT & HOW TO MAINTAINy


Main Switchboard

INCOMING CABLES 8 x 1c 300mm²

FED FROM EXISTING3 3

250A

QM1200A

3SERVICE PROTECTION DEVICE -

FACILITY TO BE LOCKED IN'ON' & 'OFF' POSITIONS.DO NOT SWITCH OFF

IN CASE OF FIRE100AQM2

DISTRIBUTION BOARD

LINK RED PHASE - TO BE REMOVED WHEN

PFC UNIT IS CONNECTED

CT2

CHASSIS CH3 - 48 POLE, DIN TYPE, 18mm PITCH

FED FROM EXISTING INTEGRAL SUB No 8615 CT1

PF1

3 3

M1MTB1

3

3

1 12

50A

18

POLE

SPD - 1250ASET @ 1250A

100AQM4

DISTRIBUTION BOARD

100ADISTRIBUTION BOARD

DB-WAREHOUSEBEHIND DESPATCH OFFICE S/E WALL

3

SD1

PF2

3

DISTRIBUTION BOARDDB-ENGINEERINGN/E WALL BEHIND

100A100A

QM3

CT METER PANELMOUNTED REMOTE

BY OTHERS

MTB1

CH

ASS

IS C

H1

3

SPARE SPACE FOR 3P CB UP TO 250A

3

100A DISTRIBUTION BOARDDB-UPS

NORTH WALL ADMIN

P1FT1

POWER FACTOR 300AQM6

630A

3

CHASSIS CH2 1250A 24 POLE

QM9200A

333

QM11200A 200A

3

QM10

33

300AQM14

3

CORRECTION UNIT PFC1ADJACENT

3 630A

3

SINGLE LINE DIAGRAM

250A200A

250A200A

DISTRIBUTION BOARDDB-FAR

ELECTROBARWEST WALL

200A250A

DISTRIBUTION BOARD

DB-OFFICENORTH WALL

ADMIN

300A400A



AIR CONDITIONING SUB BOARD A/C

PLANTROOM NORTH

DISTRIBUTION BOARD

DB-CENTRECENTRE

WAREHOUSE



SINGLE LINE DIAGRAM


Service Protection Device


Revenue CT’s


Surge Diverter ATS /MTS


Outgoing Circuit Breakers


Motor Control Centre

F3F2F1 Q1006A

Q1M125A

MET

ER

PAN

EL

TO P

OIN

T O

F A

TTA

CH

ME

NT

QA120A

QB120A

QC120A

QD120A

QE120A

QF120A

090806 070302 04 0501 11 151412 13 1716 18 1910 20 292826 272322 24 2521 30

NT'

D O

N L

INE

31

Q2M50A

TO L

IGH

T &

POW

ER D

B

A A A A

CIRCUITMONITORING

SUPPLY

N

EAR

TH

NE

UTR

AL

LINKMEN

EARTHMAIN

UB VB WBWAVAUA

M M

WCVCUC UD VD WD

M M

WEVEUE UF VF WF

MM

KC1

FC1

KD1

FD1

KE1

FE1

KF1

FF1

CO

N

VSD STARTERREF. DRG. 0602033-204

REF. DRG. 0602033-203REF. DRG. 0602033-204VSD STARTER

REF. DRG.0602033-206 0602033-206

REF. DRG.0602033-206REF. DRG.

0602033-206REF. DRG.

b

0000

0000

TO PLC.

Q1M

AUX

00C b

APC2

APD2

APE2

APF2

2.6 A1.1 kW

INFLUENTPUMP No.1

2.2 kW

ASPIRATINGAERATOR No.1

2.2 kW

ASPIRATINGAERATOR No.2

0.75 kW

WASPUMP

3.5 kW

WAS STORAGE TANKTRANSFER PUMP

2.6 A1.1 kW

INFLUENTPUMP No.2

"A" "B" "C" "D" "E" "F"

6051 555452 53 5756 58 595040 494846 474342 44 454131 353432 33 3736 38 39

SCA No.1

SCA No.1

00C

00C

QG120A

QM120A

KM1KL1

QL120A

QK120A

QJ120A

QH120A

KH1

QN120A

VNUN UP VP

QP120A

QQ120A

VQUQ UR VR

QR120A

KG1

FG1

CO

NT'

D F

RO

M L

INE

30

CO

NT'

D O

N L

INE

61

VSD STARTERREF. DRG. 0602033-205REF. DRG. 0602033-205

VSD STARTER

REF. DRG. REF. DRG. REF. DRG. REF. DRG.

APG2

APH2

APL2

APM2

KN1 KP1 KQ1 KR1

REF. DRG.0602033-208 0602033-208

REF. DRG.0602033-208REF. DRG.

0602033-208REF. DRG.

M

0.75 kW

EFFLUENT REUSEPRESSURE PUMP

WGVGUG UM VM WM

M

3.4 A1.5 kW

WATER SUPPLYPRESSURE PUMP

M

1.8 A0.75 kW

LPGS PUMPUNIT

WLVLULUK VK WK

M

2.6 A1.1 kW

EFFLUENTPUMP No.1

M

2.6 A1.1 kW

SUPERNATANTRETURN PUMP

UH VH WH WJVJUJ

M

2.6A1.1 kW

EFFLUENTPUMP No.2

M

0.42 A0.05 kW

ALUM DOSINGPUMP No.1

M

0.42 A0.05 kW

ALUM DOSINGPUMP No.2

M

0.42 A0.05 kW

SODA ASHDOSING PUMP No.1

M

0.42 A0.05 kW

SODA ASHDOSING PUMP No.2

SR2FIELD ISOLATOR

ONOFF

SQ2FIELD ISOLATOR

ONOFF

SP2FIELD ISOLATOR

ONOFF

SN2FIELD ISOLATOR

ONOFF

0602033-207 0602033-207 0602033-207 0602033-207

"G" "R""Q""P""N""M""L""K""J""H"


Motor Control Centre


Power Factor Correction Unit


WHEN TO MAINTAIN

The effect on businessForm of ConstructionForm of Construction

EnvironmentLocationEnvironmentDuty


WHEN TO MAINTAINAS 2467 clauses 4 4 3 4 4 4 & 4 4 5

WHEN TO MAINTAINAS 2467 clauses 4.4.3, 4.4.4 & 4.4.5Inspect – 12 months

Examine – 5 years

Overhaul – 15 yearsOverhaul 15 years


CONCLUSIONCONCLUSION


Predictive maintenancePredictive maintenance


Specialist Companies


Design


Manufacturer’s Literature


3rd PLACE


2nd PLACE


WINNER


the abc of switchboard maintenance - nesma · the abc of switchboard maintenance by mark betcherby...

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