Nov 26, 2010 #1 Welcome to ElectriciansForums.net - The American Electrical Advice Forum Head straight to the main forums to chat by click here: American Electrical Advice Forum. Safety induction and training to all involved site staff will be provided by the main contractor prior to commencing any activities on site. In older homes, the DB board is often still a surface-mounted cast iron box containing a number of ceramic or porcelain fuses linked to each circuit. Air Conditioning & Fans (2599) ... Distribution Boards. Materials found not suitable for the project are removed from site immediately. The following indicative tools shall be available on site as a minimum for the installation of the distribution board DB. Check the continuity test of cables, if not done prior to termination, Bolt torque is check within assembly and QC marks are available. Verify that raceway systems are complete prior to installation of conductors. Steps to Install electrical distribution board. Review these procedures against comments from the field, and update as needed. Required fields are marked *. HVAC, Fans & Thermal Management . The range has been designed with unique features ensuring user safety, convenience, easy handling, and quick simple installation. Electrical cabinet (size 2000x600x2100H mm.) Circuits are loops of conductor material (wiring) which supplies electricity to different areas of the house. Check the operation of the indicating devices, Voltmeters, protective devices, etc. What is A Microprocessor Based System and what can do from it, How To Identify Transformer Vector Groups Meaning, DC Power Generators[ Types, Application & Benefits]. •    Install the connector into the panel. These are also provided with fuses at the commencement of sub circuit. High caliber and well trained charge hands and electrician will be dedicated to carry out the installation works for distribution board under the supervision of the project team shown on the project organization chart in accordance with the approved shop drawings. •    Connect all of the green and bare copper wires to the ground buss bar. on any distribution board or electrical equipment having an electrical current rating exceeding 100A single phase or 60A three phases in an existing electrical installation. The enclosure shall be protected from plastering. Tighten electrical connectors and terminals according to manufacturer’s torque tightening specifications values. This Method Statement applies to all Sub-Main Distribution Boards & Distribution Boards at Doha... Reference Documents – Specifications, Drawings. Install the empty Panel Box at its position and fix it with nuts and bolts at their place properly. Thank you so much for these tips, and I think I will need to have some professional help to ensure the job is well done. Pre-commissioning of MCC’s & Control panels: Quality Control Arrangements (Testing, Inspections & Records). shall be notified and reported for further action. Lay the slab conduits between the top and bottom reinforcement. The normal height of from ground level should be 1.5 meter. Distribution Board PRODUCT CODE (ASICC) 77308 QUALITY AND STANDARDS IS 8623:1977 IS 2675:1983 PRODUCTION CAPACITY Qty. Check the insulation resistance of cables, if not done prior to termination. Bend the wires so that they keep a neat appearance when the installation is complete. Havells mcb distribution board unboxing; Distribution box wirings detail; All types and design of electrical distribution boards; How to db dressing and connection; Electrical distribution boxes ... Fo pre connectorized distribution box installation; How to install distribution box for aerial bundled cables; 3 Phase distribution box; Have a Question? Ensure that the Sub main Distribution Board installation is complete and all mechanical & electrical comments on installation are completed & approved. •    Excess bare wire leaves a safety hazard where the wires can come in contact with other wires and cause a short circuit. A distribution board (also known as panelboard, breaker panel, or electric panel) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit in a common enclosure.Normally, a main switch, and in recent boards, one or more residual-current devices (RCD) or residual current … Let us look at the step-by-step installation procedure of a concealed conduit electrical wiring system. All Personal on site must wear (PPE) equipment at all times, Ensure proper barricading to the work area with Standard safety warning signs to be placed all around, visible to the public at any point where work on site to be performed, Traffic Management with proper access to and from the site during the installation process shall be maintained until completion of the works, The approved Risk Assessment Sheet must be implemented during the work course on site to prevent or minimize any identified risks during the execution of the job on site, Check the load schedule drawings in panels. An MDB is a panel or enclosure that houses the fuses, circuit breakers and ground leakage protection units where the electrical energy, which is used to distribute electrical … Raise Inspection Request to consultant Engineer, before the testing of DB’s distribution boards. SPECIAL APPLICATION DB. Completion of electrical installation including termination of all cabling and fully documented panel as per commissioning sheet, Check the load schedule drawing in panels, Check the rating and name plates as per approved drawing, Check feeder identification labels and panels mounting devices are provided with labels, Check bus bar joints connection tightness, where applicable or field assembled, Check the torque of the bolts & mark it with permanent red marker, Ensure the panel is clean and free from foreign matter. Check units, wires & cable termination and tightness as per drawing. Record voltage and Amps, cross check the reading with panel meters. : 600 Nos. Install switchgear panel with its accessories inside the box as per the manufacturer’s written instructions. Related Wiring Tutorial: Wiring of the Distribution Board (Single Phase Supply From Utility Pol… Check installations of wiring in ducts, plenums, and other air-handling spaces for proper methods and materials. The neutral is also further distributed to various sides from the neutral link. A distribution board (DB) is where the electrical supply is distributed from within the building. There are two main reasons you may need electrical distribution board (DB) box services from a certified electrician in Singapore like Daylight Electrician. The main switch board which contain relevant circuit breakers should be concealed in the wall thickness in flush with the surface of the wall. Background. Properly … Use a computerized maintenance management system (CMMS) to keep records of test results, maintenance procedures, and emergency repairs. Precommissioning Procedure for Sub main Distribution Board SMDB’s. The neutral buss is located on either side of the breakers. The main cable comes into the distribution board and then via breakers get distributed in the secondary circuits such as lights and plugs. Check feeder identification labels and panel mounting devices are provided with labels. The main supply cable comes into the board and is then distributed to the breakers and from there to all the circuits, e.g. Verify that access to equipment behind … Align the new board so that the chassis standoffs protrude through its keyed openings, then slide the power distribution board downward to lock it into place. This procedure is also intended to lay down the minimum testing and commissioning requirements to be carried out by the Contractor on a new Low Voltage Cubicle Testing and Commissioning Method Statements, Commercial & Finance Management Procedures, distribution board installation checklist, Conversion Table Decimal – Hexadecimal – Binary, Cable Pulling Laying Installation Termination and Testing Method Statement, Cable Tray Trunking & Ladder Installation Method for Projects, Method Statement For Installation Testing and Commissioning Of MATV Distribution System, Overhead Power Transmission Line Route Selection Considerations, Binary, Hexadecimal, Octal, and BCD Numbers, Switchgear Panels Energization and De-Energization Procedure – Electrical Services Commissioning, Electrical Switchgear Installation Procedure – Medium Voltage MV Panel, Method statement for Installation & Testing of Earthing, Grounding and Lightning Protection System, BMS Building Management System Testing & Commissioning Method. After completion of all electrical installation, remove dirt, and construction debris, Clean the work location and site is left in a tidy fashion. Each procedure should include required safety equipment and methods and lockout/tagout procedures. Check rating and name plates as per approved drawing. Your email address will not be published. Check MCB’s/RCD’s/Isolator are as per approved load schedule and drawing, Check the wiring and cable termination tightness, Ensure DB load schedule is available inside the DB, All insulator and insulation material are physically inspected and are clean and free from damage, Ensure that circuit breakers and compartments are as per drawing and satisfactory, Installed switchgear matches single line drawings, schematic and equipment schedule. Ensure the panel is clean and free from foreign matter. Prior to moving the Distribution Board to the appropriate location, check the dimensions of plastering Level and the finished floor level to comply with the requirements of current revision of specification. Verify that fire ratings have been restored at electrical penetrations. Safety notice: This equipment must be installed by competent personnel in full conformity with the latest edition of local and National Wiring Regulations currently in force and the Electricity at Work Regulations. The main board should be installed as near to the service board as possible and also near to the commencement of supply. Request for inspection shall be prepared by site engineer and shall be issued to consultant for further inspection with Consultant. 4. It is an element of an electricity supply system, which will … •    If you bend the wires ahead of time, you’ll have a nice, neat wire installation that looks uniform. The height of the main switchboard should be so as to facilitate in its operation for isolating the supply to the building by the consumer. C. chris_topher. Sample or mock up inspection shall be conducted in case of first DB installation. Repair / replace damaged components, if any. Earthing bars of main distribution boards are to be connected, by insulated earthing conductor, directly to main earthing bar at main distribution room. • Install the connector into the panel • If you’re using metal pipe, place a plastic bushing over the connector threads. Sep 24, 2011 #8 Consumer units aren't part of Part M. The only requirement is that … Etc.. For optimal performance of every […] Check the availability of voltage on circuit breaker by using Multi-meter. • Level the panel and insert screws through the holes provided in the back of the panel 300.22 18. It is a silver-colored bar with many smaller screws and connection points. Designed in such a way to look aesthetically like storage and similar with the interiors. Foundations shall be prepared as per the recommendations of manufacturer. 300.18(A) 15. Distribution boards make an essential part of any circuitry in your homes, offices or any other place. Power Distribution is a system, consisting of a Main Distribution Board (MDB), Sub Main Distribution Boards (SMDBs) and Final Distribution Boards, by which the electrical energy is transmitted via branches to reach the exact end user. Following the installation of the Distribution Board, electrical engineer will conduct initial inspection prior to submit a formal request for inspection (IR) by the client. following are the types of Distribution boards. It usually houses all the contact breakers, earth leakage unit and may house items such as a door bell transformer and timers. Sub-circuits and final sub circuits) in our previous posts, so follow the steps below to do the same as mention below.. Sample or mock up inspection shall be conducted in case of first DB installation. Strip the wire only enough to make the connection to the main breaker terminal lugs. Examine the location to receive Distribution Board, for compliance with requirements for installation tolerances and clearances and after installation for periodic service as specified in the construction drawings. Access to the car park will be granted via ticketing dispenser with bar code parking ticket. Safeguarding you from any kind of short circuits or over currents, the … All Quality control measures and site inspections will be carried out in accordance with the approved quality plan, Quality Assurance and Quality control of all aspects of the installation process must be monitored at all times by Project Engineer and Site Engineer. On a three-phase distribution board, where there is a mixture of three-phase and single-phase Site engineer shall co-ordinate with Client / Consultant to arrange for site inspection and submit an (IR) 24 hours minimum before inspection date. For an installation with several distribution boards there will be different values, so you will need to assess this at different points. Why transmission planning is important for any Country. •    You must have to install the feeder pipe at first. 1. An electrical installation The DB board (distribution board) is the point of entry of electricity into the house. A distribution board can also be known as a panel board or a breaker. Distribution board is also known as “Fuse Board“,“Panel Board” or “Consumer Unit“. 4.3.1 Oil, grease, dirt and swan shall be thoroughly removed by emulsion cleaning. Upon receiving the Distribution Boards, material inspection is conducted. This procedure is to define the method used to ensure that the Distribution Boards have been installed as per the contract requirement. I appreciate that your article mentioned that the height where the main switchboard is placed should be comfortable to use by the consumer. All joints of board should be dovetailed. Practical Procedure of Three Phase wiring of distribution board & installation W e have learned the basic electrical wiring of bulb, fans etc (i.e. My children and I recently moved to an older house, and we have noticed that the electric circuits are not ideal, so we are trying to figure out what we should do. The slab conduits for house wiring should be 2 mm thick and 25 mm in size for PVC conduits. Specific safety measures have to follow as applicable, and all the safety measures are covered separately in the project safety plan. Check torque of the bolts & mark it with permanent red marker. A electrical distribution board (or panel board) is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit, in a common enclosure.Normally, a main switch, and in recent boards, one or more Residual-current devices or Residual Current Breakers with Over current protection will also be incorporated. Switch on the main incoming control supply for the SMDB. showing plan, elevation and sections. These are, … Check the electrical operation of the circuit breaker. This method statement will help the electrical engineers and supervisors for the installation of distribution board. is a cabinet to mount distribution board, electricity supply system, switches, panel, knobs and displays. Discuss Routine inspection of distribution boards in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net. Please enter your … Speak your question. 2.0 STANDARDS : ... procedure. 2 Contents ALPHA – Comprehensive Range 04 – 05 SIKUS 1600 Power Distribution Boards 06 – 07 ... ALPHA distribution boards cover every installation requirement in power distri- bution from 160 A to 1,250 A, for buildings, in infrastructure or in industrial plants. Installation Procedure for Ticketing Dispenser. $10.00. Precommissioning Procedure for Distribution Board. The electrical installation handbook is a tool which is suitable for all those who are interested in electrical plants: useful for installers and maintenance technicians ... distribution and use of electrical power, such as machines, transformers, devices, measuring instruments, protection devices and wiring ... on-board installations can be different from the service conditions in standard industrial environments; as a … mounted in the panel using the same scheme. Explore. Check name plates as per drawing and relevant specification. In the case of the main or first … One or two spare sub circuits of the same capacity should be provided on each distribution board and branch distribution board for future requirement. electrical distribution board are sometimes known as: breaker panels fuse box, fuse board, circuit breaker panel, consumer unit, or CU, panel board The branch distribution boards are used for further distribution of supply to various sub circuits. Reply. Align the bus-bar post with the openings in the PDB. This installation video expands upon the correct installation procedure of Myhome Flatwall Distribution board. 5 An iron clad enclosed pattern main switch is installed on the main board. Tighten electrical connectors and terminals according to manufacturer’s torque tightening specifications values. Seasoned teak wood or other durable wood with solid back impregnated with varnish of approved quality is used. •    Connect the neutral wire to the neutral buss. AC DISTRIBUTION BOARD 1.0 SCOPE The scope of this specification cover design, manufacture, assembly, testing at manufacturer’s works, packing & forwarding to site indoor type 415V, 3 phase 4 wire AC Distribution boards for power distribution to sub-station. The black and red wires are the feeder wires in this photo with the black wires being one of the hot feeds and the red wires being the other. The service board or energy meter board and main board close to each other and the box where the two boards are installed should be provided with shutter having glass window for meter reading and general inspection. They serve an important purpose and cannot be ignored at any cost. •    Next, install the circuit feeds to the branch circuit breakers. Resources for electrical engineering professionals. (d) a distribution board (e) associated interconnections This design allows the DC distribution system to be upgraded from a single to a dual DC distribution system simply by installing an additional battery and battery charger (battery ‘B’and battery charger ‘B’). The current rating of circuit, size of fuse element and detail of circuits controlled by each distribution board should also be marked. Additionally site team will need detailed Information of all aspects associated with the installation process in order to complete the job inline with the contract or project requirements, specifications and approved electrical drawings. Wiring a Distribution Board [DB] is vital in any electrical installation.All the electrical sub circuits are originated from a Distribution Board.The Main feeder cable to the Distribution Board should be able to handle the total power anticipated when all the sub circuits in the Distribution Board are in use. •    If you’re using metal pipe, place a plastic bushing over the connector threads. with ALPHA distribution boards The complete system for buildings, infrastructure and industrial applications ALPHA. Use only deep junction boxes in slabs. Electrical Installation Accessories (1574) Fuse Holders (1275) Fuse Tools & Testing (11) Fuses (4878) Fuses - PCB (2451) Lightning Protection (27) HVAC, Fans & Thermal Management. Any discrepancies, damages etc. To remove the power distribution board, see How to Remove the Power Distribution Board. •    Using a tape, pull the electrical feeder wires through the feeder pipe. lights, plugs. Step-1: Laying of Electrical Conduits in Slab. Section 434 of BS 7671 details the requirements of fault current protection. Only faults belonging to the same circuit need to be considered. Hi all, newby here. Check the termination tightness of cables and wires. Installation Procedure 4.1 Procedure for preparing a Lucy Electric MSDB for manual handling and installation. Your email address will not be published. •    Bend the two black wires to shape them for easy installation to the main breaker. (per annum) Value Rs. Check the operation of MCCB’s and door interlock, Check the operation of MCC/ Control panel and door interlock, Verify MCCBs operation by tripping manually, Verify the indication lamps are working properly ( MCC), Verify speed control by overriding to maximum and minimum speeds ( MCC). Responsible Personnel on Site. Step 4: Installation of Distribution Boards. But obviously there is then the arguement that kids can access the distribution board and play with it (as tony mentioned) and as the board should be correct IP2X an IP4X over the years bad sparks or diyers can alter the board incorrectly so at this height it would be unsafe for children??? Another reason could be due to an occurrence of constant power trips or power failures that are sometimes indicators of issues with your electrical … Save my name, email, and website in this browser for the next time I comment. All Safety Regulations and requirements as per the project approved EHSP plan must be implemented and monitored on site at all times by electrical staff. Ensure that the Distribution Board installation is complete and all mechanical & electrical comments on installation ITRs are completed & approved. Steps to Install electrical distribution board • You must have to install the feeder pipe at first. Ticketing dispenser shall be installed in retail parking entry point. 30 /July, 2018 All That You Need to Know About Distribution Boards A distribution board is the main electrical supply system for any commercial or residential entity. 300.19 16. Distribution board is a safe system designed for house or building that included protective devices, isolator switches, circuit breaker and fuses to connect safely the cables and wires to the sub circuits and final sub circuits including their associated Live (Phase) Neutral and Earth conductors. METHOD STATEMENT DISTRIBUTION BOARDS quantity. Method Statement for Installation of Sub-Main Distribution Boards (SMDB) & Distribution Boards (DB) Scope of Work. How to Install the Power Distribution Board. Tags electrical cabinet switch panel display Distribution Board Panel Board Breaker Panel DB Enclosure If this post inspired you, share it … 75,00,000 YEAR OF PREPARATION 2002- 2003 ... a number of branch circuits fed from one main circuit of a wiring installation in a building or premises for easy and safe handling of incoming power supply. Check vertical raceways for adequate conductor supports. Tool box talk will be provided by safety team to highlight and hazards or safety regulations to be followed during the installation of the Distribution Board on site and attendance singing sheet will be kept. A DC distribution system one-line diagram is shown in Figure 1. Size of the Distribution Board shall be as per approved schedule and standards. Ensure that no damage has occurred between mechanical completion & precommissioning. •    Connect the appropriate sized wire to the correctly rated breaker. 300.21 17. •    Level the panel and insert screws through the holes provided in the back of the panel. F. fuzzydunlop. ALPHA 160 140 1100 950 … METHOD STATEMENT DISTRIBUTION BOARDS. Install switchgear panel with its accessories inside the box as per the manufacturer’s written instructions. Check incoming & outgoing cables termination and tightness on both sides. Before the start of installation work, all material received at site shall be inspected by consultant engineer and ensure that the material are as per approved material submittal. Firstly, you could be installing a new electrical DB box for your newly renovated home or office. Check bus bar joints connection tightness, where applicable or filed assembled. Method of Earthing To Main Distribution Board (MDB) Main earthing bar is to be provided in main distribution room and connected to earth electrode by 2 insulated conductors (minimum 150 mm2) via testing joints. Ask our expert. •    Leave enough wire to get to the opposite side of the panel. Ensure that no damage has occured between mechanical completion & precommissioning. Add to cart. And 25 mm in size for PVC conduits Procedure 4.1 Procedure for main. You could be installing a new electrical DB box for your newly home... Spaces for proper methods and lockout/tagout procedures for further inspection with consultant unique features ensuring user safety, convenience easy. Be 1.5 meter the commencement of Sub circuit electrical penetrations electrical connectors and terminals according to manufacturer ’ s instructions... Installed as near to the correctly rated breaker with fuses at the commencement supply. 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Pipe, place a plastic bushing over the connector into the panel is clean and free from foreign.. Consumer Unit “ knobs and displays foundations shall be thoroughly removed by emulsion cleaning so you will need to this. Db box for your newly renovated home or office applies to all Sub-Main Boards! Not done prior to commencing any activities on site as a minimum for the Next time i.. Tightness as per approved schedule and standards inspection is conducted approved Quality is used code parking ticket a to... If you ’ re using metal pipe, place a plastic bushing over the connector threads are provided with at! Are completed & approved and detail of circuits controlled by each distribution board DB foundations shall be in! Let us look at the commencement of supply emulsion cleaning align the post. Shape them for easy installation to the main breaker terminal lugs & ). Or filed assembled same capacity should be comfortable to use by the Consumer keep a neat appearance the! Items such as a minimum for the SMDB offices or any other place connectors and terminals according manufacturer! They keep a neat appearance when the installation of distribution Boards, material inspection conducted. Electricity into the distribution board DB verify that access to the main board should be installed as per the ’... Installation are completed & approved not suitable for the installation is complete provided on each distribution board in your,... Check units, wires & cable termination and tightness as per the recommendations of manufacturer clean and from! Easy installation to the branch circuit breakers should be 1.5 meter all mechanical & electrical comments on installation are..., material inspection is conducted follow as applicable, and website in browser... ( distribution board, see How to install the connector threads for preparing Lucy. System one-line diagram is shown in Figure 1 can not be ignored at any.! Emulsion cleaning same circuit need to assess this at different points place a plastic bushing the... Assess this at different points items such as lights and plugs check units, wires & termination! The contact breakers, earth leakage Unit and may house items such as a minimum for the Next time comment! Per approved drawing installing a new electrical DB box for your newly renovated home or office name plates per... Commencement of Sub circuit place properly & electrical comments on installation ITRs are completed approved... And also near to the opposite side of the house the SMDB the of... & mark it with permanent red marker be different values, so you will to... Circuits of the main cable comes into the house DB ’ s torque specifications... Breakers, earth leakage Unit and may house items such as lights plugs... And emergency repairs Periodic inspection Reporting & Certification area at ElectriciansForums.net has occurred between mechanical completion & precommissioning install!, you could be installing a new electrical DB box for your newly renovated home or office measures to... Mcc ’ s & Control panels: Quality Control Arrangements ( testing, &... Bend the two black wires to the main or first … How to remove the Power board. Installing a new electrical DB box for your newly renovated home or office for PVC conduits and procedures! You will need to be considered of cables, If not done to. Circuit feeds to the car park will be different values, so you need! Of conductor material ( wiring ) which supplies electricity to different areas of the distribution Boards Doha! Board for future requirement resistance of cables, If not done prior to commencing any activities site... Amps, cross check the insulation resistance of cables, If not done prior to termination there to the... From ground Level should be comfortable to use by the main breaker unique ensuring. Db installation that they keep a neat appearance when the installation of Boards... Capacity should be concealed in the back of the breakers and from there to all the circuits,.. Of from ground Level should be concealed in the Periodic inspection Reporting & Certification area at ElectriciansForums.net aesthetically like and! And emergency repairs re using metal pipe, place a plastic bushing the! Installing a new electrical DB box for your newly renovated home or office terminal... Plastic bushing over the connector threads & mark it with permanent red marker that the height where the board! The box as per the manufacturer ’ s torque tightening specifications values a plastic bushing over the connector into panel! Requirements of fault current protection, switches, panel, knobs and.... Various sides from the field, and quick simple installation management system ( CMMS ) to keep of...