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Download >> Read Online >> ebcs 11 pdf ebcs pdf ebcs 11 ethiopian building code standard free download ethiopian building code standard- 9 building electrical installation symbol ethiopian building construction standards ethiopian building code standards zip 18 Jul 2015 ETHIOPIAN BUILDING CODE STANDARD EBCS-10 ELECTRICAL INSTALLATION OF BUilDINGS TABLE OF CONTENTS Section 1 1.1 1.2 1J Page 1 of 35. EBCS-10: 2013. Ethiopian Building Code Standard. ELECTRICAL INSTALLATION.

OF BUILDINGS. 2013 Edition. Page 1 of 35 GPC3 – Design Standards.

Generation connection conditions (GCC). 11 ECBS-10 Electrical Installations of Buildings code, chapter 10, issued by the. This Code Standard for the Electrical Installation of Buildings, EBCS 10: 2013 EBCS-10 is an integral part of the Ethiopian Building Code Standard which SECTION 15: INSTALLATION OF LIGHTING EQUIPMENT EBCS-10: 2013 of the Ethiopian Building Code Standard on Electrical Installation of Buildings. EBCS-10: 2013. GRAPHICAL SYMBOLS. (1) This Section of the Code sets provisions for graphical symbols to be used in provisions of the Ethiopian Building Code Standard on Electrical Installation of Buildings. 13 Sep 2014 EBCS ( Ethiopian Building code standard ).

ECEG 4401 10. ECEG 4401 Electrical Installation By Amare A. Building design and engineering requirements for airborne infection prevention and control, 10. Endale Mekonnen. Dr Tesfaye Abicho. Includes the renovation of existing buildings and the construction of new struc- tures The Ethiopian Building Code Standards, EBCS-1-95through11-95.

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MEASUREMENT OF ELECTRICAL SERVICES IN BUILDINGS Onwe Friday I. Department of Technology and Vocational Education Ebonyi State University, Abakaliki ABSTRACT This paper deals with the measurement of electrical services in building. It identified the basic items that make up electrical installation including the procedure for their measurement in line with the relevant sections of the standards method of measurement of building works and services. The paper revealed certain vital information which must be made available to the Quantity Surveyor either directly by the consulting Services Engineers or through the Architects. The relatively simple worked example provided an insight to the subject and showed the method of measuring the electrical services to a small building in accordance with the details on drawing and the distribution sheet as shown.

Keywords: Buildings, Electrical, Conduit, Trunking, switchgear, miniature circuit breaker, installations INTRODUCTION Where electrical circuits are to be measured in detail, such as circuits other than lighting and small power, the route of the conduit and/or cable should be plotted on the plan or a tracing overlay and the number of cables indicated. This sketch will then form a record of what is measured. An isometric sketch is often useful (as with pipework) to illustrate complex runs, Seeley I.H and Roger. According to Murray. (1997), when plotting conduit and cables it is usual to draw runs at right angles to each other rather than running diagonally. This is usually necessary because of the nature of the structure through which the conduits and cables are passing, as for example following joists or beams.

However, conduits and cables can sometimes be laid diagonally where running in floor screeds or in pitched roof voids. Once the route has been plotted and the specification fully understood, the measurement of the work is relatively straightforward, comprising enumerated items of equipment and final circuits and linear items of conduit, cable trunking, cable tray and cable on more complex systems, all measured in accordance with the rules prescribed in the standard method of measurement of builders work seventh edition (SMM7) by the Royal Institute of Chartered Surveyors (RICS, 1998). Within the constraints of this paper, the relatively simple worked example can only provide an introduction to the subject. The measurement of electrical services, as with mechanical services, requires the traditionally trained quantity surveyor to develop his knowledge of the underlying technology. MEASUREMENT PROCEDURES CONDUIT: As stated by the Royal Institute of chartered surveyors (1998) in Seeley et al (2005), conduit (not in final circuits) is measured in metres, distinguishing between straight and curved, giving the radii, and stating the type, external size, method of fixing and background as Y60:1.1-2.1.1-5, and particulars of materials as appropriate (Y60:S1-6).

The conduit is measured over all conduit fittings and branches (Y60:M2). The conduit is deemed © 2012 Cenresin Publications www.cenresinpub.org Volume 4, June 2012 Journal of Education and Policy Review to include all the labours and components described in Y60:C3. However, junction boxes and the like are enumerated as extra over the conduit in which they occur (Y60:2.1-6.1.1), RICS (1997). A typical measured item in take off format follows: PVC heavy gauge; push fit jts.; Space bas saddles at 600 ccs. Conduits 20 dia; strt; plug’g to masonry Surfs. For Small circ.

Boxes CABLE TRUNKING AND TRAY: These are measured similarly to conduit, but in addition stating the method of jointing and spacing and method of fixing supports (Y60:5&8.1-2.1.1.), as stated by Seeley I.H. CABLES: Seeley I.H. (1997), said that cables (not in final circuits) are measured in metres, giving the type, size, number of cores, armouring and sheathing, method of support and background as Y61.1.1.1-7.1-2, and particulars of relevant materials as Y61.S1-7.Y61:as directed by SMM7 (1998).

M3 of the same edition prescribes the allowances to be made to cable lengths entering fittings and equipment. CABLE AND CONDUIT IN FINAL CIRCUITS: According to the Civil Engineering Standard Method of Measurement Third Edition (CESMM3, 1991), these are enumerated on an enumerated points basis where they form part of a domestic or similar simple installation from distribution boards and the like (Y61:M7), as in the illustration shown in example 1. The SMM7 measurement code points out that this approach is appropriate for the majority of small power and lighting installations of a domestic or similar nature and also for the more simple installations in final circuits in other sections.

Other types of final circuits are measured in detail. Y61:P2 requires the following information to be given in connection with final circuits: (a) a distribution sheet setting out the number and location of all fittings and accessories; and (b) a location drawing showing the layout of the point. Examples of these documents are illustrated in table 1 and on drawing 1 of this paper. The SMM7 (1998), measurement code recommends that the distribution sheet should contain information relating to the locations, number and type of lamps, the number of lighting, switch and socket points and the type of fittings, appliances and accessories, together with any information relevant to the circuit arrangement for each distribution board and the like.

18.50 3 Onwe Friday I. Measurement of Electrical Services in Buildings Further clarification of the measurement of enumerated final circuit items contained in the SMM7 (1998), measurement code includes the following guidelines: (1) It is not necessary to give the size of conduit as it will be at the discretion of the contractor. (2) The distribution boards and the like’ from which final circuits are measured include such control gear as control panels for boilers, fire alarms, or master clocks and similar items. (3) The clarification of points in the enumeration of final circuits relates to the terminations of the permanent wiring to switches and to outlet accessories and control gear for the connection of current using appliances or fittings.

(4) Flexible conduits, cables and the like between appliances or fittings and the associated terminal accessories or control gear on the permanent wiring of a final circuit should be included in the description of the relevant appliance or fitting. SWITCHGEAR AND DISTRIBUTION BOARDS: As stated by RICS (1988), these are enumerated, stating the type, size, rated capacity and method of fixing, usually with a cross reference to the specification, and giving details of fuses, supports provided with the equipment and method of fixing, and background as Y71:1-2.1.1.1-3. The SMM7 (1998), measurement code stated that fuse links and miniature circuit breakers (mcb’s) supplied with the switchgear and distribution boards shall be included in the description of the control gear; whereas those supplied independently shall be measured separately. LUMINAIRES AND ACCESSORIES FOR ELECTRICAL SERVICES: These are covered in Y73 and Y74 of SMM7 (1998). Luminaries are enumerated stating the type, size and method of fixing, often with a cross reference to the specification, and any other relevant details listed in the fourth column (Y73:2.1.1.1-13). Pendants are also enumerated, distinguishing between those a drop ≤1.000 and >1.000.

Lamps may be separately enumerated, stating the type, size and rated capacity (Y73:3.1.0.0), or alternatively they can be given in the description of the luminaires (Y73:M2). Accessories, which include lighting switches, socket outlets, thermostats, telephone cord outlet points and bell pushes, are enumerated stating the type, box, method of fixing, background and rated capacity, and may provide for plugs to be provided with socket outlets (Y74:5.1.1.1-2). The description of accessories should state the number of gangs comprised in the accessory, (RICS, 1979). TESTING AND COMMISSIONING OF ELECTRICAL SERVICES: This is given as an item, stating the installation and any other relevant requirements listed in Y81:5.1.1-2.1-2.

Provision of electricity and other supplies and of test certificates is deemed to be included (Y81:CI&C2), Seeley I.H. IDENTIFICATION OF ELECTRICAL WORK: This is enumerated, where not provided with equipment or control gear, and is categorized as to plates, discs, labels, tapes and bands, arrows, symbols, letters and numbers, and charts, giving the type, size and method of fixing (Y82:4.1-6.1.1-2), as prescribed in SMM7 (1998).

Volume 4, June 2012 Journal of Education and Policy Review SUNDRY ITEMS: These are covered in Y89 of SMM7 (1998) For example, marking positions of holes, mortices and chases in the structure is given as an item, stating the installation as Y89:2.1.0.1. Provision of electricity and other supplies required for the temporary operation of the installation is covered by provisional sum as listed in A54 9Y89:6.1.1.1- 3&M3).Preparing drawings can be included as an item, giving the details contained in Y89:7.1.1.1-2. Drawings include builder’s work, installation drawings and records or ‘as fitted’ drawings (Y89:D1), Seeley I.H. WORKED EXAMPLE: A worked example shows the method of measuring the electrical services to a small building, in accordance with the details shown on drawing 1 Table 1: Distribution Sheet Location Lighting Power Remarks _____________________ _________________ `________ Circt. Fittings Switches Circt. ______________________ one gang nr.

Single double nr. Type ______________ SSO SSO one two way way Entrance 1 1 100w 2 2 1 Passage Plain Pendant Waiting room 12 1 150w Plain pendant 2 2 1 1 Office 1 2 65w Fluor.

2 2 1 2 Totals 4 2 4 3 3 Onwe Friday I. Measurement of Electrical Services in Buildings OFFICE consumer control unit WAITING ROOM ENTRANCE PASSAGE 6150 225 3200 100 2340 225 2 6 0 0 ELECTRICAL INSTALLATION DRAWING 1. SCALE: 1:50 9 0 0 100 BLOCKWORK Volume 4, June 2012 Journal of Education and Policy Review Conn. To mains cable Include the follg. Defined provisional sum For works by Electricity Authority Bring’g.

Mains cable to bldg installg. Meter and conn. To switchgear: N4096 Consumer unit LV switchgear & disttn.

Bd Distribution bd. Consumer control unit w.100 amp main switch; manufacs’s ref KM 100; two 5 amp & two 30 amp m.c.b.s.; plugd. To masonry General LV power Cables and conduit in final circuits Final circuits; Cable & conduit in ring main circuit; Concealed installation; consistg. Of 2.5mm2 PVC insul.

Colour coded cable; drn. Into black enam.

Heavy gauge m.s. Conduit; in screeded flrs.; in circuit nr. Six s.s.0’s Accessories soc. Outlet 13 amp; 3 pin shuttered flush; ivory plastic patt single switched, stl.k.O.

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To masonry ditto double switched; do. General Lighting Cables and conduit in final circuits Final circuits Cable and conduit in lighting circuit; concealed insallatn.; consistg of 1.00mm2 PVC insul. Colour coded cable drn.