hospital electrical systems preliminary site visit rpt rev2

7/21/2019 Hospital Electrical Systems Preliminary Site Visit Rpt Rev2

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SITE VISIT REPORT & RECOMMENDATIONS DOCUMENT

ELECTRICAL SYSTEMS UPGRADE

Job # NG-23-1

CLIENT: DEUX PROJECTS

1 10thApril 13 First revision Complete with Pictures AI OAD

0 7TH

April 13 Preliminary draft document without pictures AI OAD

REV DATE DESCRIPTION ORIG APPROVALS

Document NumberProject No. Deliv. Code Doc. Type Seq. Num. Rev.

IP-DP-01 1000 5040 001 1


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SITE VISIT REPORT & RECOMMENDATIONS DOCUMENTELECTRICAL SYSTEMS UPGRADE

Page 2 of 23 08/05/13

Table of Contents

0.0 BACKGROUND

1.0 EXISTING INFRASTRUCTURE

2.0 FUNCTIONAL/SAFETY COMPLIANCE ISSUES

3.0 LOAD SUMMARY

4.0 RECOMMENDATIONS

5.0 IPGRUPPS EXECUTIVE COMPANY SUMMARY


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0.0 BACKGROUND

Ongoing upgrades/new infrastructure works at the specialist Hospital facility EKU over the last twoyears have added and upgraded several building facilities. To achieve the expected significantbenefits from this investment the overall electrical utility systems will require substantial upgradesand modifications.

IPgrupp Engineering/NEGO Construction with the support of specialist Hospital EKU personnelhave conducted a site review of the existing electrical utilities ,this preliminary report has beendeveloped to highlight key functional and safety concerns arising from the inspection and provideearly recommendations for system upgrade with summary schedule of works to achieve same..

The report begins with a technical overview of the existing electrical infrastructure and theoperational condition as a prelude to the identification of functional and safety compliance issueswe have identified, we conclude with recommendations to resolve these issues and bring overallsystem into compliance.


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1.0 EXISTING INFRASTRUCTURE

1.1 PHCN Power In-Take and Switching System

Power from the PHCN utility company feeds into the EKU specialist hospital facility via11KV/415V 500KVA substation. The 11KV/415V substation is newly installed underthis project and is located close to the previously shared community sub-station withinthe hospital grounds.

Fig 1 PHCN Intake HV/LV Substation

The transformer unit is rated at 500KVA 11/0.4KV ONAN manufactured by ABB whilethe Feeder Pillar LV Distribution panel is rated for 600Amps


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Fig 2 HV-LV 500KVA Transformer UnitThe Output from the 600Amp Feeder Pillar is routed thru a 4core x 95mmsq

PVC/SWA/PVC copper cable to an over-head Aluminum 4 core x 100mmsq conductorline which feeds the Low Voltage power from this PHCN in-take substation to thefacility main power house/switching sub-station.

Fig 3 LV O/Head Line from PHCN Intake S/Station Fig 4 PVC/SWA/PVC cable connection O/Head Lineto Main Power Plant Isolator

A 4core x 120mmsq Flex Cable continues from where the overhead Aluminum lineends to feed power thru to a main isolator switch the ratings for which we were unableto determine during our survey.

The isolator switch then feeds into a PHCN-to-Generator change-over switchassembly (SW1 fig 5 below)

Transformer

11/

0.415KV Feeder Pillar

600A

Change-over

SW1

11KV Overhead Line Supply From PHCN 2.5MVA

Substation 11KV Overhead Line Feeder to Power Station

120mmsq Aluminum Conductor Cable

3core x 35mmsq

XLPE HV Cable 4core x 95mmsq

PVC/SWA/PVCCable

4core x 120mmsq

PVC/SWA/PVCCable

Main

Isolator

G

Generator

Change-over

SW2

G

Generator

Fig 5 Overall PHCN In-take one-line schematic


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The PHCN-to-Generator change over switch #1 is cascaded to another change 0verswitch #2 which serves to enable selection between the outside functional 500KVAgenerator and the now derelict 230KVA CAT 230 V8 generator. Hence the changeover switch now functions as an isolator for the 500KVA outside generator only.

Change-Over switch #2 enables

selection between the functional

500KVA generator and now

derelict 230KVA CAT generator

(shown beside the change-over

switch)

Fig 6 Change-over switch #2 and faulty 230KVA CAT Generator

Main Change-Over switch #1

enables selection between the

PHCN Supply and selected

generator from Change-Over

switch #2 (now confined 500KVA

generator only as the 230KVAgenerator is faulty

Fig 7 Change-Over Switch #1 PHCN-Generator Supply

Change-over

SW1

G

230KVA

Change-over

SW2

G

500KVA

Faulty

PHCN

Supply

MainIsolator

Fig 8 Change-Over Switch #1 and # 2 Schematic


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Output from changeover switch # 1 is fed thru a 4core 120mmsq PVS/SWA/PVCcopper cable to a secondary internal overhead aluminum conductor system, utilizingconcrete poles slightly shorter than those used for transferring power from the PHCNs/station to the main facility substation.

Secondary Overhead distribution

concrete pole and PVC sheated

100mmsq Aluminum Conducted

Power from PHCN and the main

500KVA Generator is distributed

to the various hospital load

centers thru this overhead

system

PHCN Over Head LV feeder from

Transformer Sub-Station close

to the main gate

Fig 9 Primary and Secondary Power Distr. Overhead Systems

1.2 Local Power Generation System and Ancillary Equipment

Power Plant inspection determined that the facility designed Power generation systemhad previously consisted of two Diesel driven CATERPILLAR Generators CAT 150

and CAT 230 with KVA ratings of 150KVA and 230KVA respectively. Over the yearsas these fell into disrepair a 350KVA PERKINS, 27KVA WOERMANN, 500KA LISTERand a 15KVA unbranded Generator have been added to the Power pool.

As at time of inspection only the 500KVA and the 15KVA generators where in afunctional state the others all being at different stages of disrepair or completelyscrapped out.


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The Power plant equipment interconnect feeder and control cabling has beenrepeatedly altered, decommissioned and re-routed so extensively in variance to allapplicable safety or functional compliance code/regulatory requirements

500KVA Generator currently in

service

Fig 10

150KVA CAT 150 Generator in

state of disrepair (cracked engine

block)

Fig 11

350KVA PERKINS

Generator requiring

general overhauling

repairs works

Far right is the

27KVA WOERMANN

Generator shown with

a missing alternator

Fig 12


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1.3 Power Distribution to Hospital Load Centers

The main power distribution system for this facility is a low voltage overhead linesystem routed to all the main load centers/buildings within the complex. Service 4corealuminum condor cables are generally used to tap power from the nearest overheadpole to each building

Service cable used to tap power

from overhead power distribution

system to each building as

required.

Fig 12 Showing service cables used to Tap Power into Buildings

The emergency power system consist of the 15KVA generator and a distribution panelwith outgoing feeders directly to identified critical loads/facilities. The inspectionrevealed that the outgoing feeders and the distribution panel had been re-workedrepeatedly to an extent that the safety and functionality had been significantlycompromised .

Fig 13 Showing 15KVA Generator and Emergency Feeder Panel


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500 KVA Transformer

11/

0.415KV Feeder Pillar

600A

11KV Overhead Line Supply FromPHCN 2.5MVA

Substation

11KV Overhead Line Feeder to Power Station120mmsq AluminumConductor Cable

3core x 35mmsq

XLPE HV Cable 4core x 95mmsq

PVC/SWA/PVC

Cable

4core x 120mmsq

PVC/SWA/PVC

Cable

Main

Isolator

G

500KVA

Change-over

SW2

G

230KVA

PHCNSupply

PHCN Isolator

SW

Faulty-But still

Connected

Change-over

SW1

LowVo

ltageOverheadLine

InternalDistributionsystem

G

15KVA

Change-over

SW3

Emergency supply to selected wards and theater

Directcablingtoloads

Viaservicecables

4corex120mmsq

PVC/SWA/PVCCable

G

150KVA

Faulty-But still

Connected

Change-overSW4

Safety/

Compliance

Issue 1

Safety/

Compliance

Issue 2

Fig 14 Showing Overall Power Generation and Distribution System


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2.0 FUNCTIONAL/SAFETY COMPLIANCE ISSUES

The technical audit on the electrical systems for the facility revealed several non-compliance and safety issues that should be addressed in any future upgrade program

It was noted that the interconnecting power cabling between generators , change-overand isolator switches has been altered/added and was exposed in several instances .

Control Panels for several of the generators are derelict and need to be decommissioned

as live cabling is still routed thru as part of the generator switching system.

Fig 15 Control Panel and Change-Over Switch Cabling in Plant Room

All switch operations are performed manually with no safety inter-lock systems in placehence only experienced and plant specific trained personnel can perform switchingsafely. Accidental power feedback to generating systems remains a substantial risk withthe current operations.


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3.0 PROJECTED LOAD SUMMARY

S/No Gate House Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 5 240 6 1440 1800

2 External Lights 20 60 240 1200 1500

3 Ceiling Fan 1 400 240 400 500

240 0 0

TOTAL 3040 3800

S/No Waiting room Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 15 240 18 4320 5400

2 External Lights 20 60 240 1200 1500

3 Ceiling Fan 5 400 240 2000 2500

4 Airconditioners 4 1110 240 4440 5550

5 Internal Lights 13 36 240 468 585

6 Emergency Lights 1 40 240 40 50

240 0 0

TOTAL 12468 15585

S/No Maternity Ward Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 100 240 120 28800 36000

2 External Lights 18 60 240 1080 1350

3 Ceiling Fan 20 400 240 8000 10000

4 Airconditioners 9 1110 240 9990 12487.

5 Internal Lights 89 36 240 3204 4005


7 Water Heater 3 1000 240 3000 3750

8 Expeller Fan 6 200 240 1200 1500

9 Bed Lights 28 12 240 336 420

240 0 0

TOTAL 55730 69662.


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S/No Family Medicine Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 5 240 6 1440 1800

2 External Lights 4 60 240 240 300

3 Ceiling Fan 2 400 240 800 1000




7 Water Heater 0 1000 240 0 0

8 Expeller Fan 0 200 240 0 0

TOTAL 4952 6190

S/No Children's Ward Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 114 240 136.8 32832 41040

2 External Lights 21 60 240 1260 1575

3 Ceiling Fan 18 400 240 7200 9000


5 Internal Lights 70 36 240 2520 3150


7 Water Heater 1 1000 240 1000 1250

8 Expeller Fan 18 200 240 3600 4500

9 Bed Lights 10 12 240 120 15010 Hand Dryer 1 600 240 600 750

11 Cooker Unit 1 240 32 7680 9600

TOTAL 63712 79640

S/No Private Ward Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 94 240 112.8 27072 33840

2 External Lights 16 60 240 960 1200

3 Ceiling Fan 19 400 240 7600 9500


5 Internal Lights 90 36 240 3240 4050


7 Water Heater 1 1000 240 1000 1250

8 Expeller Fan 0 200 240 0 0

9 Bed Lights 33 12 240 396 495

10 Hand Dryer 0 600 240 0 0

TOTAL 60608 75760


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S/No Men's Ward Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 86 240 103.2 24768 30960

2 External Lights 21 60 240 1260 1575

3 Ceiling Fan 20 400 240 8000 10000


5 Internal Lights 77 36 240 2772 3465


7 Water Heater 1 1000 240 1000 1250

8 Expeller Fan 4 200 240 800 1000

9 Bed Lights 33 12 240 396 495

10 Hand Drye 1 600 240 600 750

11 Cooker Unit 1 240 32 7680 9600

TOTAL 51916 64895

S/No Women's Ward Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 97 240 116.4 27936 34920

2 External Lights 21 60 240 1260 1575

3 Ceiling Fan 24 400 240 9600 12000

4 Airconditioners 5 1110 240 5550 6937.5

5 Internal Lights 77 36 240 2772 3465


7 Water Heater 3 1000 240 3000 3750

8 Expeller Fan 2 200 240 400 500

9 Bed Lights 40 12 240 480 600

10 Hand Dryer 1 600 240 600 750

11 Cooker Unit 1 240 32 7680 9600

TOTAL 59518 74397.5

S/No Store Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 6 240 7.2 1728 2160


3 Ceiling Fan 3 400 240 1200 1500



TOTAL 6978 8722.5


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S/No Canteen Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 33 240 39.6 9504 11880


3 Ceiling Fan 4 400 240 1600 2000


5 Internal Lights 56 36 240 2016 2520


7 Water Heater 1 1000 240 1000 1250

8 Expeller Fan 2 200 240 400 500

9 Bed Lights 0 12 240 0 0

10 Hand Dryer 0 600 240 0 0

11 Cooker Unit 0 240 0 0 0

TOTAL 19480 24350

S/No Isolation Ward Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 43 240 51.6 12384 15480


3 Ceiling Fan 10 400 240 4000 5000


5 Internal Lights 49 36 240 1764 2205


7 Water Heater 0 1000 240 0 0

8 Expeller Fan 0 200 240 0 0

9 Bed Lights 0 12 240 0 0

10 Hand Dryer 0 600 240 0 0

11 Cooker Unit 1 240 32 7680 9600

TOTAL 41018 51272.5

S/No Walkway Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 0 240 0 0 0

2 External Lights 59 60 240 3540 4425

3 Ceiling Fan 0 400 240 0 0

TOTAL 3540 4425


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S/No

A & E Ward Load

Description QTY Watts Voltage Current W VA

1 13amps Ring Main 186 240 223.2 53568 66960

2 External Lights 16 60 240 960 1200

3 Ceiling Fan 40 400 240 16000 20000


5 Internal Lights 158 36 240 5688 7110


7 Water Heater 5 1000 240 5000 6250

8 Expeller Fan 17 200 240 3400 4250

9 Bed Lights 20 12 240 240 300

10 Hand Dryer 0 600 240 0 0

11 Cooker Unit 1 240 32 7680 9600

TOTAL 127186 158982.5

S/No Luandry Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 25 240 30 7200 9000


3 Ceiling Fan 6 400 240 2400 3000


5 Internal Lights 26 36 240 936 1170


7 Water Heater 4 1000 240 4000 5000

8 Expeller Fan 0 200 240 0 0

9 Bed Lights 0 12 240 0 0

10 Hand Dryer 0 600 240 0 0

11 Cooker Unit 1 240 32 7680 9600

TOTAL 29536 36920

S/No Walkway Load Description QTY Watts Voltage Current W VA

1 13amps Ring Main 4 240 4.8 1152 14402 External Lights 4 60 240 240 300

3 Ceiling Fan 1 400 240 400 500



TOTAL 3118 3897.5


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S/No

Admin Building Load

Description QTY Watts Voltage Current W VA

1 13amps Ring Main 125 240 150 36000 45000

2 External Lights 25 60 240 1500 1875

3 Ceiling Fan 70 400 240 28000 35000


5 Internal Lights 100 36 240 3600 4500


7 Water Heater 10 1000 240 10000 12500

8 Expeller Fan 10 200 240 2000 2500

9 Bed Lights 0 12 240 0 0

10 Hand Dryer 5 600 240 3000 3750

11 Cooker Unit 0 240 0 0 0

TOTAL 112050 140062.5

S/No Building Description W VA

1 Gate House Load Description 3040 3800

2 Waiting Room 12468 15585

3 Maternity Ward 55730 69662.5

4 Family Medicine 4952 6190

5 Children's Ward 63712 79640

6 Private Ward 60608 75760

7 Men's Ward 51916 64895

8 Women's Ward 59518 74397.5

9 Canteen 19480 24350

10 Store 6978 8722.5

11 Isolation Ward 41018 51272.5

12 A& E Ward 127186 158982.5

13 Luandry 29536 36920

14 Walkway 3540 4425

15 Prayer Room 3118 3897.5

16 Admin Building 112050 140062.5

TOTAL 654850 818562.5

TOTAL KVA 818.5625 KVA

TOTAL KVA AT 70%

DIVERSITY 573 KVA


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4.0 RECOMMENDATIONS

The Schematic below depicts an overview of the proposed Power generating and distributionsystems.

PHCN Isolator

SW#1Automatic

Change-OverPanel #1

LowVoltageOve

rheadLine

InternalDistribut

ionsystem

Emergency supply to selected wards and theater

4corex

120mmsq

PVC/SWA/PVCCable

G

500KVA

(Existing)

PERKINS

Generator

PHCN Isolator

SW#2

From 500KVA

Xformer Sub-Station

Automatic

Change-Over

Panel #3

G

350KVA

Proposed New

Generator

Automatic

Change-Over

Panel #4

Proposed Typical Change-Over

Arrangement to be Located in Each

Building Requiring Emergency Power

Supply

BattInverter System

Providing continuous powerto Life Saving Equipment

and all Lighting as

Connected to DB#1Distribution

Panel

# 1

Distribution

Panel

# 2

Lighting & Critical

Equipment

Non Critical

loads

G

750KVA

(Future)

Proposed New

Generator Automatic

Change-Over

Panel #2

Bus-Tie

Interlocked Switch

Fig 16 Proposed Overall Generation and Distribution Schematic


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The above schematic refers:

POWER PLANT

Install one(1) 500KVA generator(existing) and make provision for a future 750KVAgenerator thru the use of a automatic change-over switch #2 system.

Tie-In PHCN utility supply thru a main automatic change-over switch #1 cascaded tosecondary changeover switch #2

Install adequately rated fused Isolator units for PHCN tie-in to change-over switch #1

Install one(1) 350KVA generator unit for emergency load supply thru automatic changeover switch unit #3

Tie-In PHCN thru a fused isolator connected to automatic change-over switch #3

Install a split bus main Low Voltage(LV) panel rated for at least 2000Amps continuousduty

DISTRIBUTION

Connect Output of main change-over switch #1 to one side of the split bus-bar LV Panelthru to the existing over head conductor distribution system.

Connect Output of change-over switch #2 to the other side of the LV Panel bus-bar thruto service circuit breakers feeding identified critical load centers.

Install dedicated service cables from the Power plant LV Panel to each identified criticalload center utilizing cable trays to be mounted along the newly installed walkway roof

trusses

Install manual/automatic change over switches #4 at each critical load center as identifiedto enable selection between normal mains power as supplied from overhead lines andemergency power as supplied from dedicated service runs from the Power Plant.

Install adequately sized inverter/UPS systems within each building identified as criticalload and connect output of change-over switch #4 as its input.


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Connect Inverter/UPS output to distribution panel #1 which should be wired to power allcritical loads and Lighting within the building

Connect distribution panel #2 directly to the change-over switch #4 output and wiredistribution panel to feed all high demand loads within the building including airconditioners, water heaters and cooker units.


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PROPOSED PROJECT PLAN

ID TASK DESCRIPTION IN SUMMARY

WK 1 WK2 WK3 WK4 WK5 WK6 WK7 WK8 WK9 Wk10 WK11 WK12

1 Project Start

2

Site Evaluation and Load Flow and Fault

Studies For Approval of Construction

Drawings/Specifications

3 Procurement

4 Mobilize to Site

5

Installation of Generator & Change Over

Switches

6 Installation of Main LV Panel

7

Installation of Support Cable Trays for

Dedicated Emergency Service Cables

8 Install Emergency Service Cables

9

Install Inverter/UPS Systems in identified

Critical Load Centers

10

Install Change-Over Switchs in identified

Critical Load centers

11 Testing and Commissioning

12 Project Close-Out

IPGRUPPS EXECUTIVE COMPANY SUMMARY

IPgrupp.Engineering has been serving the small and medium sized Electrical & Specialty ControlIndustrial community in Nigeria since 1996.

Our strength lies in the ability to provide dedicated

Construction, commissioning and specialistelectrical/Instrumentation engineering design support servicesfor industrial production facilities. Our services include powersystem design & planning, electrical/Instrumentationprocurement, Construction coordination and maintenancesupport for electrical power distribution systems. .


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From conceptual power system studies to commissioning, IPGRUPP Engineering have averifiable track record of vast technical expertise, equipment and network of technical resourcepartners to complete projects safely, cost- effectively, within schedule and to requiredspecifications. Over the years we have developed and attracted field tested site team techniciansand engineers, extensively supported by experienced Project Managers and design Engineers.

Our core service areas include:

Design and Installation of Back-up PowerSystems including cable distribution.

Design and Installation of SurveillanceSystem.

Design and Installation of Fire & Gasdetection and Alarm System.

Design & Installation of alternative energypower supply systems.

Installation of Power Monitoring & ControlSCADA Systems.

IPgrupp.Engineering is a limited liability company with corporate registration number RC 424165.We have our main office at Lekki-Ajah, Lagos with operations yard and satellite offices in Warri,

Abuja and Port-Harcourt in Delta and Rivers State respectively.

We have successfully completed several Electrical and Instrumentation Projects eitherindependently or as a value adding team member in multiple company efforts. Notable among thenumerous projects include the deployment of real-time gas monitoring SCADA system for fiscalmonitoring on behalf of the Department of Petroleum Resources, Obudu Cattle Ranch (Cross-Rivers)- electrical and network systems, University of Western Delta, Oghara- Electrical,Communication, Safety and Fire Alarm structured cabling and active device systems amongstmany


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OUR VISION STATEMENT

Achieve sustainable and significant service capacity for Enginering Design, Construction,Maintenance and Manufacturing in West Africa and beyond.

OUR MISSION STATEMENT

To Provide excellent and sustainable Engineering Services to the Oil & Gas and Power Sub-sectors of West-African energy industry through effective alliances, local capacity developmentand good business practices.

hospital electrical systems preliminary site visit rpt rev2

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