Ampere Electrical Contracting Est

Ampere Electrical Contracting Est
Ampere Solutions - Mean all Type of Electrical Solutions

Thursday, April 28, 2011

ADDC Company Approval Exam

Classes : 13 Feb to 17 Feb -2011

Registration with Ecoman Traning institute Abu Dhabi at least one month before.
Fees Paid:- AED: 8000
First Day :- 1-5 Chapters coverd

Following steps to Further Procedure

  1. Apply to ADDC for the license approval.
  2. Engineer's qualification Equvilency
  •                         Degree and Higher Secondry  qulification genuinity Certificate to get from Indian Embassy by fill there application form for both certificates with one set of passport copy, certificate photo copies both side for each certification.
  • Indian Embassy will issue a Genuinty Certificate for the certficate after verification that the given certificates are genuine
  • by with secondry Genuinty certificate from Embassy , we will apply to Ministery ofSecondry Education Abu Dhabi Maroor Road Near Bus Stand bride( Delma Street)
  • by with Degree Genuinty certificate from Embassy , we will apply to Ministery of Higher Education Abu Dhabi Najdha Street opposite AL Kindy School and opposite to poilce station

Saturday, April 23, 2011

Bus Bar

  1. Site survey done, Measured the length required for the Bus Bars,
  2. Purchased the MCCB 100A, 35KA and installed inside the Pannel after arranging the back support
  3. Size of Bus Bar 30 x10 mm , 02 Nos. of Length (Each Length 3 Meter)

Friday, April 22, 2011

Electrical Related Web Site Addresses

ELR Installation at Traffic Control Building

Supply and Installation of 04 Nos of ELR ( Earth Leakage Relay ) in SMDB at First Floor in Traffic Control building to the outgoing breakers each were of 100 Ampere MCCB of Schnider Electric( Same as Merlin Gerin)
Material Bought from - Safety Electrical
  1. Shut Relay
  2. ELR
  3. Fuses
  4. CBCT ( We bought it for 50mm2 cable because Lugs were connected so small can't enter in side the cable)
Fixed the shut inside the breaker assembly , put the CT's on the cable , installed ELR on rail mounted c-channel and made the wiring

How Basically It Works

ELR Earth Leakage Relays along with CBCT are used to detect
leakage  current in the earthing. If the earthing is not
proper a small amount of current will appear (in the order
of mA). ELR will continuously monitor the leakage current
if it exceeds the set threshold an output electromechanical
relay (which is inside the ELR) will operate. The output
relay contact can be connected to circuite breakers /
contactor to isolate power supply or alarms.

CBCT Core Balance Current Transformers these will come in
different sizes. the core material will be either nickel or
alloy of nickel, copper wire will be wounded on the core
and properly insulated. The 3-phase line along with neutral
are passed in this core and secondary is connected to ELR.
Idealy the leakage current should be zero if any earth
leakage happen the leakage current will appear at CBCT
secondary it will be detected by ELR

Saturday, April 9, 2011

Air Conditioning Installation

Project No: 1- Abu Dhabi Municipality - 3rd Floor
( Through Highgate Interior Designing Company)

  1. Supply and Installation of Fan coil Units - 04 Nos ( high noise)
  2. Supply and Installation of Chilled water pipe line connection
  3. Supply and installation of Thermostate.and its electrical wiring for the control

Problem Faced:
  • high noise
  • Drain water leakage.
  • thermorstate proper setting
  • No Chemical Flushing did.
  • Because ceiling was 60 x 60 non perforated (like net holes ) so one reason of sound.
  • diffuser used were 40 x 40 and length of ducting was less also so noise might be this reason
  • sound proof liner should be used for make noise free.

Friday, April 8, 2011


Receipt Voucher

Material Approval Form

Installation Testing Certification Report


Incident Report

Monday, March 14, 2011

New Company to start in India

Required Formalities :-

1) Sale tax no.
2) Rented Office for sale tax no.
3) Pan card no.
4) ID card
5) Profile biodata , experience certificate
6) Affidavit
7) Bank account no.
8) Telephone.
9)deposit Rs 10000
10)Enter prise co. letter head

Friday, March 4, 2011

CCTV system Through Internet


1.    Purchase a DSL modem as required (ADSL or SDSL).
2.    Connect one end of the Ethernet cable to the Ethernet port at the back of the DVR box and the other end to the modem.
3.    Set up your IP address. You can obtain it with your DSL connection.
4.    Activate your Firewall, so as to limit external interference in your recorded data on the Internet.
5.    Connect the router to the DVR with the help of a cable in case you require a network of connections.
6.    You now have an Internet connection through the DVR. Now you are able to view every movement from your  Bussiness Establishment online.
Things We Need:
  • IP address
  • DSL modem
  • An Internet service
  • Firewall security
  • DVR
  • Router
  • Ethernet cable
Tips & Warnings
  • Acquire a unique static IP address from the subscriber when you go for it. It will save on time and confusion in the Internet connectivity to your device.
  • You can also connect to the Internet even if you have a standard dynamic IP.
  • Always remember that your IP address is your password to the Internet service; enter it without any mistake.
  • Ensure that the LAN cable is appropriately connected

List of Major Electrical Companies operating in UAE

  1. Gulf Total Tractebel Power Company (GTTPC)
  2. Arabian Power Company (APC)
  3. Emirates Sembcorp Water and Power Company (ESWPC)
  4. Al Mirfa Power Company (AMPC)
  5. Abu Dhabi Distribution Company ADDC.

Thursday, March 3, 2011

How to Do Testing For New Installations

 Before Supply is Connected

  1. Continuity of Earth conductors {(MEC and CEC) - Main earth conductors and Circuit Earth conductors}. -- Test Procedure: 1
  2. Continuity of Main & supplimentary bonding conductors- Test Procedure: 1
  3. Continuity of Ring Circuit conductors. ----- Test Procedure: 2
  4. Insulation Resistance                      -- Test Procedure: 3
  5. Polarity Test                          - Combined with Test: 1
  6. Earth Electrode Resistance     --- Test Procedure: 5

After Supply is Connected
  1. External Earth fault Loop Impedence Test  ----- Test Procedure: 4
  2. Re-confirm Polarity.                                 ------ Test Procedure: 4
  3. Earth fault Loop Impedence                      ----- Test Procedure: 4
  4. Operation of RCD and earth fault devices. ---- Test Procedure: 4
  5. Operation of Switches and Isolators.           ---- Test Procedure: 4
  6. Prospective Fault Current Measurement     ---- Test Procedure: 4
Instrument and Tools Used

  1. Continuity Tester
  2. Insulation Tester. ( Megger Meter)
  3. Loop Impedence Tester.
  4. Probes.
  5. Rubber Gloves when applying 500V
  6. Earthing terminal 4- pin lead.
  7. Isolation Transformer 230/230 Volt for safety Reasons.

Thursday, February 17, 2011

Cable Size Calculation

  2. Calculate the Demand Load or Connected Load Ic = P/1.732 * V * p.f.
  3. Choose the Next Size of Circuit Breaker In = ( CB =Ic).
  4. Cable Size = (CB x 1.15) /(Ft *Fg)
{ Ft - Temperature Correction Factor ( from A7(g)) If the ambient temperature differ from 30C.
{Fg - Grouping Factor ( From A7(h) If more than one circuit}

Grouping Factor

Temperature Correction Factors

Power Factor Calculation

Voltage Drop Calculation

Example:- If Connect load is 6KW, 2 C PVC non-armoured cable cliped on wall, ambient temperature is 40 C and Power factor is 0.85.
 If Load is Single phase
Load Current Ic = Ic = P/V * p.f.  = 6000/1.732 * 0.85 = 30.6A

Circuit Break Size = 32A ( Next One Higher Value)

Cable Size = CB x 1.15 /Ft * Fg  = 32 * 1.15/0.87*0.85 ( From above Table the value of Ft and Fg )
                 = 49A
From A7(c) Cable Size = 2C x 10mm2 ( One next higher value)

Voltage Drop Calculation

               Ic x L x ( mV/A/m)
 Vd =   ----------------------

From Table A7(a) for 70 C Thermoplast PVC non-armoured Cable  "mV/A/m = 18"

So            30.1 x 22 x 18
    Vd = -------------------   = 7.9  so %age Vd = 7.9 /230 = 3.4 % ( which is less than 4% nominal Value)

Saturday, February 12, 2011

Project:- UPS Power back-Up Supply & Installation

Location:- IT Department ( Abu Dhabi Municipality- Abu Dhabi)
UPS Capacity:-

Project Detail:-
  1. Disconnecting the Power supply from UPS and Removal of the 248Nos of Batteries.
  2. Supply and Fabrication of the new Battery Racks.
  3. Supply and Installation of the YUASA Batteries- made in Japan.
  4. Made the Rubber cable links with terminal luggs and termination done of the batteries in series connection
  5. Final testing, commissioning, and observation done for the voltage on full load
  6. Power supply Shutdown was took from the municipality and checked the backup time with the battery backups.

Extra Requirement was to provide the Bank gurrantee

Wednesday, February 9, 2011

Project- IT - Networking at Municipalities of Mussaffa, Sahama, Wathba

Project Name:-
  1. IT Networking for about 30 number LAN and supply and installation of the EPBAX system

Site requirement:
UTP Cable and related material specifications:
  1. Supply and install 100 pair cable gelly armoured XLPE/PVC 0.5mm2 for telephone line
  2. Main Cable: CAT6 UTP, 4-Pairs, 24 AWG.  ( Main cable from MD to the face plate).
  3. Module: CAT6 T568A/B. ( Connector on the backside of the face plate)
  4. Shutter: 1 port Module Holder.
  5. Faceplate: Dual, 2 shutters holder.
  6. Patch Panel: 24 Ports CAT6 – Modular Type – 1U.
  7. Network cabling  ( optical cable from old buiding IDF room to New building IDF Room  will be conected to optical device- optical device will be connected to swtich- Switch will be connected to the patch panel - From patch pannel different Data sockets LAN
    1 Main Cable: CAT6 UTP, 4-Pairs, 24 Pulling, Termination and testing with face plate, and back box 24.00 250 6,000
    2 Cat 6 Patch Panel24 Port 1.00 650 650
    3 Net work cable manager 1.00 100 100
    4 Network 9U Wall Mounted cabinet 1.00 1000 1000
    5 Fiber Patch panel with loaded 1.00 480 480
    6 Optical fiber cable 6 core multimode 100 meter 10 1,000
    7 Fiber cable termination charges 1.00 325 325
    8 Network cat 6 patch cord 1m 24.00 16 384
    9 Network cat 6 patch cord 3m 24.00 20 480
    10 D link10/100/1000MBPS switch 1.00 1500 1500
Cable Material used:-I-net Networks cable 23AWG(0.57mm2) Cat 6 UTP- Made in UK.
Schneider Electric Actessi Cate 6 UTP.
Multimedia connect Cat 6 UTP.

Friday, February 4, 2011

Car Parking Light Control System- Abu Dhabi Municipality

Client: -      ( Abu Dhabi Municipality )

Main Contractor: -     Ampere Electrical Contracting Est

Project Detail 

  1. Visited the site, did the survey and checked out the requirements for the number of motion sensors required for the exact solution
  2. Fabrication of the control pannel

 Material Used:-
  1. GI conduit laying for the control cabling for motion sensors.
  2. install the motion sensor of 220 volt supply (From Sens Light)
  3. Siemens PLC Logo soft confort of latest version 6.1.
  4. write the software programming the loaded on the logo( intial problem was coming of tranfer of program to logo but we found our sofware was of older version and logo was latest so purchased the latest software version also
  5. contactors of 25Ampere of 220 volt coil supply of Federal Electric and Siemens installed.
  6. Siemens Contractor are good for frequest jerks
  7. Each Floor control panel made seperatly and installed on each floor level.
  8. Light circuit fault were cleared also,
  9. Due to non electronic choke of lights , so many lights were found faulty due to frequest ON OFF

  1. Note:- Initially Project was awarded to GISCO, but because GISCO maintenance contract was finished on December 2010 as due their non availabilty and there no interest in the project so Municipality has awarded the same project to Ampere Electrical Contracting on the same agreed price.

Supply and Installation of EPBAX system

Client: -      Musanada ( Abu Dhabi Municipality Affairs)

Client Engineer:-         Engineer Tahir

Main Contractor: -     Al Thuriya Electrical and Sanitary works

Sub-Contractor:-          Ampere Electrical Contacting Est
Project Detail 

  1. Supply and inatallation of telephone sockets, cable pulling, termination and testing commissioning 
 Material Used:-

Project - Supply and Installation of the Parking Gate Barriers with Intercom system at Abu Dhabi Municipality Affairs, Client Musanada ( Abu Dhabi Municipality)

Client: -      Musanada ( Abu Dhabi Municipality Affairs)

Client Engineer:-         Engineer Sabha Rashid

Main Contractor: -     Ampere Electrical Contracting Est

Project Detail 

  1. Supply and inatallation done of the 6Meter rectangular arm car parking barriers
  2. Supply and Installation of the  Audio and Video Inter Com system.
  3. Supply and Programming of the extra 30 Nos. of the Remotes control for the entery barrier opening.
 Material Used:-
Gate Barrier:- BFT Maclingo

Project - Fire Alarm System Installation at Zafrana Municipality, Client Musanada ( Abu Dhabi Municipality)

Project - Fire Alarm System Installation at Food Control Authority Building Airport Road, Client Musanada ( Abu Dhabi Municipality)

Project - Fire Alarm System Installation at Mussffa Garage Sheds, Client Musanada ( Abu Dhabi Municipality)

Scope of the Work:-
1. Supply and Installation of the Addessable Fire Alarm System

APPROVAL Documentation Requirements Such as FOR - ADDC, CIVIL DEFENCE, WATER METER, Fit-Out Contractors

Documents required for ADDC METER Approval
  1. Application Form duly Signed ( Form No:1 - if already meter exisits i.e single page form, Form No:2 if Meter already not exiits i.e Double page form)
  2. Agreement between the owner and tenant
  3. Site Plan
  4. Trade License copy
  5. NOC from Owner for applying Electricity meter
  6. Approved Single Line diagram
  7. Electrical Drawings in Autocad Format
Documents required for Civil Defense Approval
  1. Company's Civil Deense approval certificate copy ( Certificate -1 and Certificate -2)
  2. Company's Equipment approved certificates card copy.
  3. Company's Civil Defense approved card copy
  4. Letter from the Owner.
  5. Location Site Plan.
  6. Letter from the Supplier on their letter ahead( Aikah Letter head about the used devices)

Thursday, February 3, 2011

Green Mountains Environment Est- Waste Water treatment plant commissioning with Siemens at Mussaffa Abu Dhabi

  1. Full project study and full complete study of the logic used in the plant from the given electrical drawings  and from the site visits and had done the meetings with client Engineer Mr. S.Kumar and Siemens Engineer Mr. Ashok Kumar for the complete understanding of the projects
  2. Site Layout
  3. Prepared the Power cable schedule for all the associated machines inside the plant.
  4. Prepared the control cable schedule for all the associated control valves, control switches, controls posts,indications lamps etc
  5. Instructions given to the ampere's electrical team for the installation
  6. Some of the local control pannel fabrication done as per the requirement in the site such panel for ..
  7. Purchase and inventory done for the cables, cable trays, farrules, connectors. enclosures, relays, glands etc.
  8. Supply and installation of all the cable raceways using heavy duty cable trays accoding to ADDC rules and regulations with proper earthing and bondings.
  9. Ater fabrication of the control panel stands, Installation of the local control post and remote control post in side the electrical control room done.
  10. Termination of the control and power circuit terminal blocks with the field wiring
  11. shielded control cable of 22AWG were used for the control termination
  12. Rubber cable of 2.5mm2 and 4mm4 used for the power circuits.
  13. Testing and commisoning.
  14. Fabrication of One of the control pannel for Mannual operation
  15. Final Handover after OK certification from Siemens Engineer