BASIC ELECTRICAL MATERIALS AND METHODS

BASIC ELECTRICAL MATERIALS AND METHODS
PART 1 - GENERAL
1.01 RELATED DOCUMENTS
A. Drawings and general provisions of Contract, including General and
Supplementary Conditions and Division 1 Specification Sections, apply to
this and the other sections of Division 16.
B. It's the Contractor responsibility to be fully aware of and comply with all of
the requirements of the above.
1.02 SUMMARY
A. This Section includes general administrative, proced
ural and technical
requirements for electrical installations. The following requirements are
included in this Section to expand the requirements specified in Division 1:
1. General information and requirements
2. Design Conditions
3. Equipment and Materials
4. Submittals.
5. Coordination drawings.
6. Record documents.
7. Maintenance manuals.
8. Delivery, Storage and Handling
9. Rough-in
10. Electrical installations.
11. Cutting and patching.
12. Tests on Site
13. Record
14. Operation and Maintenance
15. Maintenance Contracts
B. Scope of Work
1. Electrical work, unless otherwise specified, includes the supply,
installation, testing and commissioning of the complete electrical
systems, equipment and materials shown on the Drawings and/or
described in the Specification together with all associated ancillary
work, support work and builder's work in connection.
2. Incoming power supply and connection will be provided by Local
Power Authority and the Smart Village Management at 11kV and 50
Hz.
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3. Telephone public exchange lines will be brought into the premises by
the Local Telephone Authority to the location shown on the drawings
or to be agreed upon with Authority.
4. There will be other works associated with and related to this Contract
the contractor is responsible to get the approval from other related
contract authorities. The Contractor shall make himself fully aware of
the interfaces between and the requirements of his works and the
works of other and also the existing utilities relating to these works.
The Contractor shall, before commencement of Installation Drawings,
make himself fully aware of the special setting-out and installation
requirements of other contract works that affect the works of this
section, including the LEED requirements.
5. The contractor shall be required to demonstrate that the equipment and
systems under this Contract function and operate in full accordance
with the Specification and the testing and commissioning procedures
described elsewhere in this Specification.
6. Once the Contractor has demonstrated the operation of the works to
the satisfaction of the Engineer the complete integration of the
Contractors works with the works of others will be the responsibility
of others.
7. Not withstanding this, the Contractor's works will not be deemed
complete until the works are fully integrated and demonstrated in
function and operation as being fully integrated with the associated
works by others.
8. The Contractor shall allow for full attendance to the Engineer and
others in order that the whole of the works under this contract can be
successfully demonstrated to be functioning and operating with all
other associated works to the satisfaction of the Engineer.
9. This shall not relieve the contractor in any way of his responsibilities
under the Contract.
C. Related Sections: The following sections contain requirements that relate
to this section:
1. Division 11 ¡§EQUIPMENT¡§
2. Division 13 Section "SECURITY SYSTEM¡¨
3. Division 15 Section "ELECTRICAL REQUIREMENTS FOR
MECHANICAL WORKS," for factory-installed motors, controllers,
accessories, and connections.
1.03 GENERAL REQUIREMENTS
A. Installations Generally
1. carry out electrical work in accordance with the Drawings,
Specification and Regulations, ensuring compliance with design and
performance requirements, to provide safe and protected systems with
equipment readily accessible for operation, maintenance and repair
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2. installations are to be complete, ready for operation and fully
integrated and coordinated with all other work.
3. installations are to be carried out by qualified personnel.
4. provide accessories necessary to complete the installations, of the
types specified or recommended for the purpose by the manufacturer
of the equipment or accessories.
B. Equipment Spaces and Rooms: check that dimensions, structure,
ventilating and cooling arrangements and other provisions in equipment
spaces and rooms are suitable for installation, operation and maintenance
of proposed equipment. Note any discrepancies on the shop and
construction drawings.
C. Systems Used Before Substantial Completion: for the benefit of the
Contractor are to have all consumable elements, such as lamps etc. and
defective equipment replaced by new, within 7 days prior to the date of
substantial completion.
D. Power Supply: liaise with the Local Power Authority and the Smart Village
Management to confirm:
- Characteristics of supply and system earthing
- Location of incoming supply shown on the Drawings
- Space requirements and associated builder¡¦s work for the
Authority¡¦s installations.
Make necessary arrangements at the earliest opportunity to ensure
connection as and when required, and inform the engineer in the event of
any foreseen delay.
E. KWH-Metering: liaise with the Local Power Authority and provide
necessary instrumentation, enclosures and accessories required by them to
effect a complete Kwh-metering installation.
F. Telephone Public Exchange Lines: liaise with the Local Telephone
Authority to confirm location of connection of public telephone exchange
lines into the premises.
G. Factory testing for locally manufactured/assembled equipment is to comply
with the relevant standards¡¦ recommendations and to be witnessed by the
Engineer and/or employer.
H. Factory testing for equipment obtained from abroad is to be witnesses by the
Engineer and/or employer if witness test is specifically required by the
relevant equipment specification sections.
I. The requirements of the Contract Documents, including the General
Conditions and special Conditions and General Requirements apply to the
work of this division.
J. In case of conflict between these requirements and the general requirements,
refer the issue to engineer for direction.
K. Drawings are diagrammatic and are a graphic representation of contract
requirements to the best available standards at the scale required.
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L. Light, power and systems riser diagrams and schematic diagrams generally
indicate equipment connections to be used for various systems. Provide
system raceway and wiring as required for actual systems installed on this
project. Provide all work shown on diagrams whether or not it is duplicated
on the plans.
M. Specifications include incomplete sentences. Words or phases such as "the
contractor shall, " " shall be, " "furnish, " "provide," "a" "an," "the," and "all"
have been omitted for brevity.
N. Except where modified by a specific notation to the contrary, the indication
and/or description of any item, in the Drawings of Specification or both,
carries with it the instruction to furnish and install the item complete with all
appurtenances or accessories necessary to complete any required system,
regardless or whether or not this instruction is explicitly stated as part of the
indication or description.
O. Specification and Drawings are complimentary and are to be taken together
for a complete interpretation of the work.
P. Drawings of necessity utilize symbols and schematic diagrams to indicate
various items of work. Neither of these have any dimensional significance
nor do they delineate every item required for the intended installation.
Q. Install the work in accordance with the diagrammatic intent expressed on the
electrical and mechanical drawings, and in conformity with the dimensions
indicated on final architectural working drawings and on equipment shop
drawings.
R. Certain details appear on the drawings, which are specific with regard to the
dimensioning and positioning of the work. These details are intended only
for the purpose of establishing general feasibility. They do not obviate field
coordination for the indicated work.
S. Where a discrepancy exists between the drawing and/or between drawings
and other parts of the Contractor Documents or where the interpretation of
either is in doubt, the Contractor shall obtain written clarification from the
Engineer on such matters before commencing the work.
1.04 DESIGN CONDITIONS
A. Nominal Characteristics of Power Supply and Distribution are as follows:
medium voltage : 10.5 kV, 3 phase,
3 wire,
Low voltage : 380/220V, 3 phase,
4 wires, solidly earthed neutral
frequency : 50 Hz.
B. Distribution systems are to be supplied or derived from the voltage system
previously described, as shown on the Drawings, or as otherwise specified.
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C. Equipment is to be designed for the system voltage and frequency
previously described with minimum power factor value of 0.9 unless
otherwise indicated, unless otherwise specified. Special provisions are to
be made for equipment sensitive to power supply frequency and voltage
variations and for equipment operated at other voltages/frequencies or by
direct current sources.
E. Climatic Conditions: all electrical equipment and material
including transformers, switchgear, distribution boards/panels,
cables, relays, lighting fixtures, switches, circuit breakers, etc.,
are to be designed and derated for continuous and trouble free
service under the following climatic conditions:
„h altitude : at sea level
„h Average ambient
Temperature in summer: 45 deg. C.
„h maximum ambient
temperature in summer: 50 deg. C
„h minimum ambient
temperature : 6 deg. C
„h maximum relative
humidity : 100% at 30CO
E. Where design and operating conditions, different from the above are
required for particular equipment, they are described in the specification
sections of the related equipment .
F. Regulations: unless otherwise required in the Sections that follow, of
Division 16, carry out electrical work in accordance with the current issue
of the local codes of practice and latest Edition of the "Regulation for
Electrical Installations" (BS 7671) Issued by the "British Institute of
Electrical Engineer -IEE" in addition.
G. Standards: unless otherwise specified, equipment and materials are to be
manufactured and installed in compliance with the relevant
recommendations of the following:
IEC : The International Electro-technical Commission
ISO : The International Standardization Organization
BS : British Standards
CCITT : The International Telephone and Telegraph
Consultative Committee
NFPA : National Fire Protection Association
or other equal and approved standards, herein referred to as 'Standards'.
Local standards, where enforced and relevant, are to have precedence over
the Standards dated above.
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Where any standard or code is proposed in preference to those specified, a
copy of the proposed standard or code translated into English language is to
be submitted with the tender. The Engineer reserves the right to insist that
materials and workman ship to be the relevant specified standard where he
judges that the alternative implies lower than acceptable quality.
H. Equipment locations shown on the Drawings indicate the approximate
locations and general layout of equipment. Exact and final locations and
layouts together with dimensions, weights, mounting methods and
accessories, where relevant, are to be shown on the shop and construction
drawings.
I. Wiring layouts shown on the Drawings are to be used as a guide only to
defining basic positions, circuiting, loading and switching arrangements.
Actual layouts and details of routing of circuits are to be shown on the shop
and construction drawings.
J. Equipment and wiring layouts shown on the Drawings for work not
included in the Electrical Work, such as motor control centres/panels,
cables between motor controllers or motor control centers to motors and
other similar electrically operated equipment are shown for information
and reference only.
K. KWH Metering: provide necessary equipment, enclosure and accessories
required by Local Power Authority to effect a complete KWH metering
installation.
1.05 EQUIPMENT AND MATERIALS:
A. Availability: confirm availability of equipment and materials proposed for
use in the work prior to submission for approval.
B. Acceptance By Authority: confirm that proposed equipment and material
characteristics where required are compatible with the requirements of the
Local Power Authority or other authorities having jurisdiction and are
acceptable to them. Inform the Engineer of any modifications necessary to
comply with the Local Power Authority's requirements.
C. Manufacturers' Standards: equipment is to be the latest standard product of
the manufacturer. Component parts are to be the product of a single
manufacturer, unless otherwise approved and provided that components
made by other manufacturers are of a standard design and are
interchangeable.
D. Approved Manufacturers: listing of approved manufacturers in the
Specification does not necessarily constitute approval of their standard
products as equal to those specified. Ascertain that listed manufacturers
are able to supply equipment and material in conformity with the
Specification. Subject to compliance with requirements, provide products
from a reputable manufacturer engaged in the filled and whose products
have been in satisfactory use in the similar service for not less than 5 years.
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E. Factory Assembly: equipment generally is to be supplied in complete
factory assembled units ready for installation on site. Dis-assembly
necessary for transportation or other purposes is to be arranged to limit site
work to simple re-assembly and inter-wiring of control and power cabling.
F. Storage Of Materials: equipment and materials are to be stored in an
approved location, under cover, free from humidity, dust, debris and
rodents. Equipment sensitive to heat and humidity is to be kept in
climatically conditioned areas until installed and handed over.
G. Defective Equipment: the Owner reserves the right to operate operable
defective equipment during the Defects Liability Period until it can be
removed from service for repair or replacement. The removal of the
defective equipment/items should not affect the building operation, if
necessary the Contractor shall provide a temporary replacement of the
defective items until replacement.
H. Warranty: where required by the Specification, provide a warranty, signed
by the manufacturer (including his agreement to replace promptly,
defective equipment or parts thereof, as instructed by the Engineer)
covering materials and workmanship for the period stated in the
Specification, starting at substantial completion. The Contractor is to
assign the benefits of such warranty to the owner.
I. Spare Parts: not later than the date of substantial completion, provide spare
parts required by the Specification, together with suitable means of
identifying, storing and securing same.
J. Tools And Instruments: not later than the date of substantial completion,
provide sets of tools and instruments required by the Specification, together
with suitable means of identifying, storing and securing same.
K. Label and identify all equipment, instruments, control and electrical
devices etc. to indicate duty, service or function, to the satisfaction of the
Engineer. Labels are to be laminated plastic or anodized aluminium discs
with black surface and white core with incised lettering in English.
Alternative methods of labelling may be submitted for approval. Fix labels
with non-corrodible screws to equipment, or to adjacent permanent
surfaces or as approved by the Engineer. Refer to Section "Electrical
Identification".
L. Equipment nameplates are to be non-corroding, robust metal, inscribed in
English, and firmly fixed to equipment at factory. Nameplates are to
indicate name and address of manufacturer, model, serial number, basic
characteristics and ratings of equipment and are to include elementary
diagrams etc., all in accordance with the Standards.
M. Fire Stopping must be provided where penetrations degrade compartment
fire rating e.g. between floors/compartments/critical areas¡K.etc. An
appropriately rated material must be used to maintain the required level of
protection.
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1.06 SUBMISSIONS
A. General: Follow the procedures specified in Division 1 Section
"SUBMITTALS".
B. Increase, by the quantity listed below, the number of electrical related shop
drawings, product data, and samples submitted, to allow for required
distribution plus two copies of each submittal required, which will be
retained by the Engineer (or as per contract agreement).
1. Shop Drawings - Initial Submittal: 1 additional blue- or black-line
prints.
2. Shop Drawings - Final Submittal: 1 additional blue- or black-line
prints.
3. Product Data: 1 additional copy of each item.
Additional copies may be required by individual sections of these
Specifications.
C. Generally: submit for approval, manufacturers' technical literature, shop
and construction drawings and other information required by the
Specification, before ordering equipment or materials and before executing
any related work on site.
D. Technical literature is to include detailed manufacturers' specifications and
original catalogues or catalogue cuts, characteristics, model number,
application and operating criteria of all equipment and materials, together
with other information necessary to satisfy the Engineer that proposed
equipment and systems are suitable and adequate.
E Coordination Study: submit for approval a short circuit and protection
coordination study for the MV and LV distribution equipment of the
project including setting of all protective relays and circuit breakers.
F. Shop and construction drawings are to demonstrate to the Engineer that the
design requirements are understood by indicating all equipment and
material proposed to be supplied and installed and by detailing fabrication
and installation methods proposed to be used. Shop and construction
drawings are to clearly state the name and location of the work, the names
of the Engineer and Contractor, submission date, cross-references to the
Drawings and Specification and the specific reference number, location,
service and function of each item.
G Shop and construction drawings are to be submitted as a scale of 1:50 for
general layout plans, and 1:10, or 1:20 as approved by the Engineer for
sections, details, elevations, congested layouts, etc. Drawings shall include
but not be limited to the following:
Details of electrical installations in conjunction with all trades concerned,
showing sleeves and openings for passage through floor structure.
Composite construction drawings fully dimensioned, in metric, showing
locations of cables, conduits, bus ducts, shafts, mechanical and electrical
equipment rooms ceiling spaces and all other critical locations.
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Plans showing equipment layouts including all details pertaining to
clearances, access, sleeves, electrical connections, location and elevation
of pipes, ducts, conduits, etc.
Plans, sections and elevations of electrical spaces to illustrate compliance
with Standards for allocation of spaces for maintenance, movement,
installation, etc.
H. List of proposed manufacturers of all equipment and materials, including
all items for which choice of manufacturer is at the discretion of the
Contractor, is to be submitted for approval.
I. Test Certificates and Reports: where required by the Specification, submit
manufacturer's type and routine test certificates and reports for equipment
and devices. Complete test results are to be submitted in clearly identified
and organized booklets, indicating item of equipment, make, model, type,
date of tests, type of tests, descriptions and procedures.
J. Laboratory Tests: if manufacturer's test certificates are considered
unsatisfactory, then independent laboratory tests are to be carried out on
equipment in accordance with the Specification and the Standards, as
required by the Engineer.
K. Spare Parts Schedules: submit with the Tender itemized schedules of spare
parts to be provided, as required by the individual sections of the
Specification, and state against each item the manufacturer's unit price
including packaging and delivery to site.
L. Tools and Instruments Schedules: submit with the Tender itemized
schedules of tools and instruments to be provided, as required by the
individual sections of the Specification, and state against each item the
manufacturer's unit price including packaging and delivery to site.
M. Labeling Schedule: submit for approval, prior to installation, a schedule of
all equipment and devices to be labeled and the suggested details, lettering,
position and fixing methods of each label indicating its application.
N. Samples: submit samples of all equipment and materials for approval.
Major items of equipment for which samples cannot be submitted are to be
demonstrated in existing installations or by manufacturer's information, test
certificates and reports.
1.07 COORDINATION DRAWINGS
A. Prepare coordination drawings in accordance with Division 1 Section
"PROJECT COORDINATION," to a scale of 1:50 or larger; detailing
major elements, components, and systems of electrical equipment and
materials in relationship with other systems, installations, and building
components. Indicate locations where space is limited for installation and
access and where sequencing and coordination of installations are of
importance to the efficient flow of the Work, including (but not necessarily
limited to) the following:
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1. Proposed locations of major raceway systems, equipment, and
materials. Include the following:
a. Clearances for servicing equipment, including space for
equipment disassembly required for periodic maintenance.
b. Exterior wall and foundation penetrations.
c. Fire-rated wall and floor penetrations.
d. Equipment connections and support details.
e. Sizes and location of required concrete pads and bases.
2. Scheduling, sequencing, movement, and positioning of large
equipment into the building during construction.
3. Floor plans, elevations, and details to indicate penetrations in floors,
walls, and ceilings and their relationship to other penetrations and
installations.
4. Reflected ceiling plans to coordinate and integrate installations, air
outlets and inlets, light fixtures, communications systems components,
sprinklers, and other ceiling-mounted devices.
1.08 RECORD DOCUMENT
A. Prepare record documents in accordance with the requirements in Division
1 Section "PROJECT CLOSEOUT". In addition to the requirements
specified in Division 1, indicate installed conditions for:
1. Major raceway systems, size and location, for both exterior and
interior; locations of control devices; distribution and branch electrical
circuitry; and fuse and circuit breaker size and arrangements.
Equipment locations (exposed and concealed), dimensioned from
prominent building lines.
2. Approved substitutions, Contract Modifications, and actual equipment
and materials installed.
1.09 MAINTENANCE MANUALS
A. Prepare maintenance manuals in accordance with Division 1 Section
"PROJECT CLOSEOUT". In addition to the requirements specified in
Division 1, include the following information for equipment items:
1. Description of function, normal operating characteristics and
limitations, performance curves, engineering data and tests, and
complete nomenclature and commercial numbers of replacement parts.
2. Manufacturer's printed operating procedures to include start-up, breakin,
and routine and normal operating instructions; regulation, control,
stopping, shutdown, and emergency instructions; and summer and
winter operating instructions.
3. Maintenance procedures for routine preventative maintenance and
troubleshooting; disassembly, repair, and reassembly; aligning and
adjusting instructions.
4. Servicing instructions and lubrication charts and schedules.
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1.10 DELIVERY, STORAGE AND HANDLING
A. Deliver products to the project properly identified with names, model
numbers, types, grades, compliance labels, and other information needed
for identification.
B. Deliver products in manufacturer's packing means for type of delivery, well
protected during handling and storing.
PART 2 - DEFINITIONS
2.01 GENERAL DEFINITIONS AND ABBREVIATIONS
A. The following initials, words and phrases shall the following meanings:
CED - Cairo Electricity Distribution Co
EC - Egyptian Code
IEC - International Electro Technical Commission
DIN - German Standard Institute.
VDE - Association of German Electrical Engineers
BS - British Standards
EN - European Standards.
NFPA - National Fire Protection Association
"The Work" - That part of the project dependent upon or
subsequent to the statement
"The Works" - The works referred to in the Specification and
which are fully shown and described in the
Contract Documents.
"Directed" - Directed by the Engineer
"Inspected" - Inspected by the Engineer
"Submitted" or "Submit" - The description of performance requirements,
materials and workmanship contained in the
Contract Documentation.
"IEE Regulations" - The wiring Regulations for Electrical
Installations within Buildings as issued by the
IEE 16th edition.
"U.S GBC" U.S green building council
"LEED" Leader ship in Energy and Environmental Design
2.02 DEFINITION OF "AGREEMENT", ACCEPTANCE" AND "APPROVAL"
"Agreement" Acceptance" and "Approval" shall have the following meanings:
"Agreed" or "Agreement" - Agreed by or agreement of the Engineer in writing
"Accepted" or - Accepted or acceptance by the Engineer in writing
"Accepted"
"Approved" or - Approved by or approval of the Engineer in writing
"Approved"
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"Agreement", "Acceptance" or " Approval" by or of the Engineer shall have the
following limitation:
A. When given in respect to samples of materials, workmanship or methods
of construction submitted in accordance with the requirements of the
Contract Documents shall not be construed as denoting any degree of
satisfaction with the materials used in, or the execution of the works.
B. When given in respect of drawings, documents or schemes called for by
the contract documents or proposed by the contractor, is only for
conformance with the design intent and information given in the Contract
Documents or contained in subsequent instructions.
C. When given in respect to the methods of keeping records shall mean those
methods are satisfactory.
2.03 INTERPRETATION OF DRAWINGS
A. The Contract Documents shall include, whether or not specifically
mentioned or shown, any materials, accessories or works as may be
necessary for the satisfactory completion of the contract works.
B. Where a discrepancy exists between the drawings and/or between drawings
and other parts of the Contract Documents or where the interpretation of
either is in double, the Contractor shall obtain written clarification from
the Engineer on such matters before commencing the work.
2.04 SYMBOLS
A. The symbol notation for all drawings to be produced by the Contractor
shall be in accordance with applicable standards and regulations and shall
be agreed by the Engineer and shown on a separate drawings.
PART 3 ¡V DEFINITIONS OF TYPES OF ENGINEER'S DRAWINGS
3.01 TENDER DRAWINGS
A. Shall mean the drawings prepared in such detail as may be necessary to
enable those tendering to interpret the design for the works and to submit
competitive tenders for the execution of the works.
3.02 TENDER DRAWINGS
A. Shall mean the drawings contained in or forming part of the numbered
documents which constitute the Contract Documents.
3.03 TAKING DIMENSIONS FROM DRAWINGS
A. The Contractor shall verify the accuracy of all dimensions abstracted from
the contract drawings, including verifying the accuracy by taking
dimensions on site, in the preparation of any drawings by the Contractor
and before the relevant work proceeds.
3.04 DISCREPANCIES BETWEEN DRAWINGS
A. Should any differences exist between the drawings or should there be any
discrepancy in the figures, scale or the respects, the Contractor shall refer
the same to the Engineer for clarification before proceeding with the work.
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PART 4 ¡V DEFINITIONS OF TYPES OF CONTRACTOR'S DRAWINGS
4.01 WORKSHOP DRAWINGS
A. Shall mean the drawings, based on the Contract Drawings showing details
of the Contractor's proposals for the execution of the works. The drawings
shall be 1:50, for floor plans and 1:25 for plant rooms and electrical rooms,
in such detail and with all necessary dimensions as to enable the work to
be installed and shall indicate all conduit necessary dimensions as to
enable the work to be installed and shall indicate all conduit layouts, cable
tray layouts, busway routing bends, connections panel boards location and
sizing, etc. necessary for installation and also particular installation
methods to be applied in certain instances, e.g. where connecting to
existing utility services. These drawings shall also relate to builder's work
drawings confirming relationships to cable intakes. Etc.
B. In respect of electrical installations shall include but not necessarily be
limited to:
i. General layout drawings of all plant and equipment included in the
contract including method of connection to existing utility services.
ii. Schematics for main and sub-main distribution.
iii. Cabling and wiring connections showing cable types, sizes and loads.
iv. Trunking and cable tray routes with details of sizes, fixings, cables
carried and terminations complete with calculations of trunking or tray
Capacities.
v. Conduit routes with conduit sizes, methods of installation and details of
cables, loads and terminations, and all junction and pull-in boxes.
vi. Power distribution for electrically operated equipments such as HVAC,
Pumps, motors, etc.
vii. Lighting layouts for normal and emergency purposes, detailing positions
and types of luminaries, switch positions and wiring connection.
viii. Earthing system with precise details of routing, conductor sizes,
capacity and connection.
ix. Lightning protection system with precise details of position, routing,
conductor sizes and terminations.
x. Fire detector and alarm positions and wiring routes with type details and
functions.
xi. Communication systems (telephone, data, sound, A/V,¡K..etc) raceways
routes and details.
xii. Power supply systems and changeover arrangements including detailed
wiring with identification of those sections of the normal system
operated from the standby source.
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4.02 BUILDER'S WORK INFORMATION DRAWINGS
A. Shall mean the drawings and Schedules prepared to show requirements for
architectural or structural provisions necessary to facilitate the execution of
the works and allow their integration into the project.
B. Such drawings should include requirements for foundations, bases, lifting
and supporting structures for plant or equipment, all holes in walls, floors
and ceiling elements, provision of services requirements within voids above
false ceilings or below false floors, the integration of the services
installations into the false ceiling system and trenches, depressions, ducts,
etc., in or through building and site elements.
C. General arrangements and floor plan drawings giving builder's work
requirements shall be to a scale of 1:50.
D. Builder's work drawings for plant rooms risers and electrical rooms shall be
to a scale of 1:25.
4.03 MANUFACTURERS AND EQUIPMENT DRAWINGS
A. Shall mean the drawings of any item of plant or equipment produced by
manufacturer or equipment supplier indicating principle dimensions,
fixings, connections and all other relevant details.
B. Where manufactures' original drawings are used they shall be specific to
the relevant works and all references to optional features, other machines
of a range, etc., shall be deleted or the original drawings redrawn to
comply with this clause.
C. Each drawing shall be stamped CERTIFIED by the Manufacturer which
shall mean that:
i. The drawing represents accurately the item concerned with correct
dimensions and all connections precisely located.
ii. The item conforms to the specific description given in the documents,
quoting the reference numbers from the Contract Documents.
iii. The item is shown complete and entire as it will be supplied for the
works and no extraneous or alternative parts are indicated.
D. Individual and layout drawings from electrical component manufacturers
shall include wiring internal and external to panels and controls.
E. All wiring diagrams shall indicate clearly that wiring which forms part of
or is connected to the equipment as delivered and shall include the
following minimum information to enable the site connections and wiring
to be completed:
i. Maximum electrical loading for each power cable.
ii. Cable termination facilities.
iii. Cable identification and all terminal numbers.
iv. Inter-connections between different items.
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4.04 CONTROLS DRAWINGS
A. Shall mean the drawings and schematics of plant and equipment showing
the control layout with each item uniquely identified, and including a brief
description of the controls operation and any associated interlocking.
B. In respect of electric controls shall mean logic sequence and wiring
diagrams showing the connections of all items of electric control
equipment and interlocking on the plant control schematics.
4.05 SWITCHGEAR AND PANEL DRAWINGS
A. Shall mean the drawings showing the general arrangement, the
construction, the external and internal layout of panels, and wiring
diagrams comprising internal wiring, schematics of interlocking and
external wiring diagrams, for the complete systems in the panels.
4.06 RECORD DRAWINGS
A. Before commissioning work, provide complete set of coloured prints of
Contract Drawings.
B. Maintain prints in field office and permanently record, in colored pencil,
on such prints, at time of occurrence, deviations from contract drawings.
C. Dimension underground utilities from permanent identifiable structural
points.
D. Make drawings available for the Engineer's periodic inspection and submit
for review with As-Built Drawings.
4.07 AS-BUILT DRAWINGS
A. Before commencing work, provide complete set of contract Drawings on 4
mill Mylar and upon completion of works contractor shall submit on CD's,
computer reproducible as built drawings of electrical works and colour
prints.
B. Neatly revise to conform with Record Drawings.
C. Conspicuously indicate major deviations by specific reference to shop
drawings and provide an accurate and complete record of the work as
installed.
D. Upon completion of work, submit signed and certified As-Built and
referenced shop Drawings, along with marked up prints of Record
Drawings, to the Engineer for acceptance.
PART 5 - EXECUTION
5.01 ROUGH-IN
A. Verify final locations for rough-ins with field measurements and with the
requirements of the actual equipment to be connected.
B. Refer to equipment specifications in Divisions 2 through 16 for rough-in
requirements.
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5.02 ELECTRICAL INSTALLATIONS
A. General: Sequence, coordinate, and integrate the various elements of
electrical systems, materials, and equipment. Comply with the following
requirements:
1. Coordinate electrical systems, equipment, and materials installation
with other building components.
2. Verify all dimensions by field measurements.
3. Arrange for chases, slots, and openings in other building components
during progress of construction, to allow for electrical installations.
4. Coordinate the installation of required supporting devices and sleeves
to be set in poured-in-place concrete and other structural components,
as they are constructed.
5. Sequence, coordinate, and integrate installations of electrical materials
and equipment for efficient flow of the Work. Give particular
attention to large equipment requiring positioning prior to closing in
the building.
B. Where mounting heights are not detailed or dimensioned, install systems,
materials, and equipment to provide the maximum headroom possible.
C. Coordinate connection of electrical systems with exterior underground and
overhead utilities and services. Comply with requirements of governing
regulations, franchised service companies, and controlling agencies.
Provide required connection for each service.
D. Install systems, materials, and equipment to conform with approved
submittal data, including coordination drawings, to greatest extent possible.
Conform to arrangements indicated by the Contract Documents,
recognizing that portions of the Work are shown only in diagrammatic
form. Where coordination requirements conflict with individual system
requirements, refer conflict to the Engineer.
E. Install systems, materials, and equipment level and plumb, parallel and
perpendicular to other building systems and components, where installed
exposed in finished spaces.
F. Install electrical equipment to facilitate servicing, maintenance, and repair
or replacement of equipment components. As much as practical, connect
equipment for ease of disconnecting, with minimum of interference with
other installations.
G. Install systems, materials, and equipment giving right-of way priority to
systems required to be installed at a specified slope.
5.03 TESTS ON SITE
A. Generally: carry out inspection and acceptance tests on site on each
complete system, before final placement into service, in accordance with
the Regulations and Standards, as described in the Specification and
required by the Engineer.
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B. Test schedules and procedures are to be submitted for approval and are to
include details of testing equipment to be provided.
C. Witnessing: inspection and acceptance tests are to be carried out in the
presence of the Engineer and, when required, by an authorized
representative of the Local Power Authority.
D. Visual Inspection: visually check proper installation, connections and
nameplate data before testing.
E. Insulation Resistance: test the feeders, lighting and power circuits, motors
and other power equipment of low voltage installations with a megger of
not less than 500 V d.c. for installations rated up to 500 V (r.m.s. value of
a.c. supply) and 1000 V d.c. for installations rated above 500 V up to 1000
V, and as required by the particular Section of the Specification.
F. Insulation Resistance: unless otherwise specified or approved, test the
circuit insulation resistance related to communications and security systems
with a megger of not less than 500 V operating voltage, with equipment
disconnected.
G. Continuity: test all feeders and circuits for continuity.
H. Operational Tests: carry out operational tests on all equipment and
complete systems to verify proper performance in compliance with the
Specification. Tests are to be carried out under normal operating
conditions for not less than 3 days, and as reasonably required by the
Engineer.
I. Specific Tests: carry out specific tests required by the Specification and any
other tests required by the Engineer to verify compliance of the
installations with the Specification.
5.04 RECORDS
A. Generally: not later than the date of substantial completion, provide the
Engineer with four copies of all approved As-built drawings, test records,
manufacturers' guarantees and warranties, operating and maintenance
manuals and other records required by the Specification.
B. Presentation of records is to be in A4 size plastic covered, loose-leaf ring
binders or other approved binders with hard covers, each indexed, divided
and appropriately cover titled. Drawings larger than A4 size are to be
folded in the binders so that they may be unfolded without being detached.
C. As-installed drawings are to contain the complete assembled information
included on the construction drawings, prepared in the same manner, and
up-dated to indicate the systems, labelling, referencing, mounting methods,
routing etc. as installed. Submit complete drawings for approval. Provide
the Engineer with two sets of transparencies in addition to the four copies
required.
D. Test records are to include test certificates of type tests, routine tests, site
tests, commissioning and performance tests and all other tests on
equipment and installations described in the Specification and required by
the Engineer. Information is to include test procedures and results,
conditions under which tests were carried out including set points,
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temperatures and the like, dates, location and attendance by authorized
representatives etc.
E. Operating and maintenance manuals are to contain the following:
1. technical description of each system and item of equipment installed,
written to ensure that the Government's staff fully understand the scope
and facilities provided
2. diagrammatic drawings of each system indicating principle
components and items of equipment
3. schedules (system by system) of equipment installed giving
manufacturer, catalogue list numbers, model, rating, capacity and
operating characteristics; each item is to have a unique code and
number, cross- referenced to the diagrammatic drawings and layout
drawings
4. name, address, telephone, telex and fax numbers of the manufacturer
of every item of equipment
5. name, address, telephone and telex numbers of equipment
agents/representatives for emergency services and procedures
6. manufacturer's service manual for each major item of equipment,
assembled specifically for the project, including detailed drawings,
illustrations, circuit details, operating and maintenance instructions,
modes of operation, control provisions, sequences and interlocks and
preventative maintenance program
7. schedules of all fixed and variable equipment settings established
during commissioning
8. procedures for fault finding, where applicable
9. manufacturers' lists of recommended spare parts for items subject to
wear and deterioration, giving expected running period and indicating
specifically those items, which may involve extended deliveries.
F. Operating and Maintenance Manuals: prepare two temporary copies with
provisional record drawings and preliminary performance data and make
available at time of testing and commencement of commissioning to enable
the owner staff to familiarize themselves with the installations. Temporary
copies are to be in the same format as the final manuals with temporary
insertions for items which cannot be finalized until installations are
commissioned and performance tested.
G. A complete set of contractor ¡§As built¡¨ drawings shall be submitted in
ACAD Format in duplicate on computer diskettes or laser disk.
5.05 OPERATION AND MAINTENANCE TRAINING
A. Before the date of substantial completion, explain and demonstrate to the
owner maintenance staff the purpose, function and operation of the
installations including all items and procedures listed in the operating and
maintenance manuals. Include for not less than training period specified in
the following individual sections.
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5.06 MAINTENANCE CONTRACTS
Where required by the Specification, submit supplementary proposals for
annual maintenance contracts. The proposals are to:
1. include for maintaining the installations in efficient working order
including routine and emergency service checks, adjustments, lubrication
and the supply and replacement of damaged parts etc.
2. set out the terms of the offer, the work to be carried out, the guarantees of
performance and the price of the work or part thereof for the first twelve
months after substantial completion.
The proposals will not be considered as part of the Tender.
PART 6 ¡V CONTROL OF QUALITY
6.01 SPECIFIED MATERIALS, EQUIPMENT AND WORKMANSHIP
A. Unless otherwise specified all materials, plant and equipment, and the use
and installation thereof, shall comply with the material, test and other
equipments of the relevant IEE wiring regulations 16th edition and IEC
standards.
B. Materials or substances which are generally known at the time of use to be
deleterious shall not be used other than as allowed by standards or
statutory regulation current at the time of use.
C. Workmanship shall be of the best quality, and shall be produced by skilled
and responsible draftsmen fully experience and in their respective trades.
D. Allow for proper packing and safe delivery of all equipment and materials
and for returning re-usable packaging to the suppliers as appropriate.
E. Include for obtaining materials from any source whatsoever to complete
the works within the contract period and no claim will be allowed for
materials ex-stock or from any other source in the event of difficulty of
supply.
F. Identical parts of similar equipment shall be interchangeable and any
items, fittings or accessories which are used in quantity shall in each case
be the produce of one manufacturer.
6.02 GUARANTEE AVAILABILITY OF SPEARS
A. Guarantee or provide manufacturers' written guarantees that spares will be
available for a minimum period of ten years from the date of practical
completion both to the Owner and to any other future building Owner,
occupier of contractor having responsibility for the maintenance of the
works.
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6.03 PROTECTION OF MATERIALS AND EQUIPMENT PRIOR TO
FIXING
A. All installation materials, component parts or complete items of
equipment shall be delivered and stored on site in properly labeled boxes,
crates or containers, suitably designed and constructed to give protection
against transportation and handling damage and deterioration during
storage. The packing shall be weather - proof.
B. Store all materials on raised boarded platforms under weather-proof cover
and store pipes, conduits, trunking and the like on racking.
C. Equipment or component parts of equipment specifically designed to
operate in normal room conditions, shall be delivered to and stored on site
with suitable waterproof protection.
D. Take particular care to protect component parts specifically designed to
act as heat transfer surfaces. These surfaces shall have purpose-designed
packing to protect them whilst in transit and storage on site.
E. Completely cover valve ports and ends of pipes or plug to prevent the
ingress of foreign matter, and additionally protect flanges against damage
to the flange surface.
F. Examine all materials and equipment supplied under this contract on
delivery to site and immediately prior to installation. Any material or
equipment which is damaged or faulty shall be replaced.
6.04 SETTING OUT
A. The contractor shall be responsible for the true and proper setting out of
the works and for the correctness of position, levels, dimensions and
alignment for all parts of the works and for the provision of all necessary
instruments, appliances and labor in connection therewith. If any error
shall appear or arise in the position, levels, dimensions or alignment of
any part of the works the setting out for which the contractor was
responsible, the contractor shall at his own expense rectify such error.
B. The checking of any setting out or of any line or level by the Engineer
shall not in any way relieve the contractor of this responsibility for the
correctness thereof. The contractor shall carefully protection preserve all
bench-marks, sight rails, pegs and other things used in setting out the
works.
C. Take all necessary dimensions on site, check runs and levels and mark
out for builders work.
D. Any unnecessary work carried out by the Engineer or other contractor
due to inaccuracy of the contractors drawings dimensions, or marking
out shall be paid for by the contractor.
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6.05 PROTECTION OF NEW WORK
A. The contractor shall be entirely responsible for ensuring that all his work
is adequately protected. Protection shall be by the contractor at the
completion of each day and during periods of inclement weather, and all
work exposed to view on completion in the works shall be protected
from spillage, stains and other damage. All systems shall be kept in a
fully drained condition prior to commissioning.
B. Test water shall be disposed of so as not to damage any part of the
temporary or permanent works, or any adjoining land or property.
6.06 INSPECTION AND TESTING CENTRALLY
A. Agree procedures for notices, witnessing, reporting and recording tests
with all parties involved including local authorities and statutory
undertakings, prior to the commencement of the works.
B. Submit copies of the formal test certificates signed by the contractors
representative not later than seven days after completion of successful
tests.
6.07 ADDITIONAL TESTS
A. Re-test or carry out at no extra cost any additional tests required to
establish acceptability of the works following failure of any part thereof
or any item therein to meet the required standard or functional
performance.
6.08 INSTRUMENTS AND EQUIPMENT FOR TESTING
A. Supply, check, re-calibrates whenever necessary and maintain in good
working order all instruments and equipment for setting out,
measurements, gauging, inspection, commissioning and performance
testing whether they are specifically called for or implied by the contract
documents.
B. All such instruments and equipment shall be adequate for the purpose
and shall satisfy the purposes and accuracy's required by the contract
documents.
C. All instruments and equipment shall remain the property of the
contractor.
6.09 PROVISION OF STAFF
A. Provide all necessary staff with the relevant skills and competence for all
inspection, testing, commissioning and performance testing.
PART 7 INSPECTION AND TESTING CERTIFICATIES
7.01 PROCEDURES
A. Schedule and submit an integrated program in respect of those elements
of the works for which inspections and tests shall be carried out and for
which inspection and test records shall be maintained.
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These elements shall include in particular those which will be covered
up during construction, and other matters described under certificates for
materials and equipment.
B. Testing of individual items of plant and equipment at manufacturers
works shall be witnessed and approved by the Engineer. On site, and
final testing of completed installations or parts of installations shall all be
in accordance with the contract documents.
7.02 CERTIFICATES FOR MATERIALS AND EQUIPMENT
A. All materials shall be manufactured and tested in accordance with the
appropriate British standard or as described. Should the contactor
propose an alternative item without the appropriate certification,
independent testing shall be carried out at the contractors expense to
determine compliance with the contract documents.
B. Where appropriate all materials delivered to the site shall bear the
manufacturer's name, brand name and any other data that may be
required to verify their exact nature and relate it to the requirements of
the contract documents.
7.03 WORKS TESTS CERTIFICATES
A. Works tests certificates shall include, whenever applicable, full
information to enable the item tested to be identified, such as project
title, contractors name manufacturers nameplate or serial numbers, the
location in the works and the delivery or batch which the sample
represents.
7.04 INSPECTION, AND TESTING RECORDS
A. Maintain records of all inspections, and testing performed to substantiate
conformity with the contract documents including those carried out by
the contractor and/or third party testing agencies, together with
manufacturers or suppliers certificates of test.
B. All records shall be retained on site and made available to the Engineer
on request. On completion of the works all records shall be handed over
to the engineer unless otherwise directed.
C. These records shall include, as appropriate, but not be limited to, project
title, contractors name, the identification of the element, item, batch or
lot, the nature and number of the observations and tests, the dates of
testing, the name and signature of the person responsible for the testing,
the number and type of deficiencies found and details of any corrective
action taken.
D. Any record which indicates that any part of the works inspected or tested
doesn't comply with the contract documents shall be submitted without
delay in order that the contractors proposals for rectification may be
assessed.
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7.05 MATERIALS AND SAMPLES
A. Each manufacturer must be willing to admit the engineer and the
consultant to his premises during normal working hours for the purpose
of examining and witnessing the testing of materials and equipment
proposed for the works.
B. All materials and equipment shall be new.
C. Obtain and implement manufacturers instructions on the assembly and
installation of materials and equipment.
D. Submit all samples required by the contract documents.
E. The procedure for submission of samples shall be agreed prior to
commencement of the works.
F. Samples of materials, workmanship, components and equipment
accepted as complying with the contract documents will be retained by
the consultant and all related items included in the works shall be at
least equal in all respects to these samples.
Provide safe storage of accepted samples on site including racks for
display, reference and inspection.
7.06 REJECTION OF MATERIALS OR WORKS NOT TO STANDARD OF
SAMPLES
A. Any material or work which is inferior to an accepted sample or is
different from parts of the works already constructed or which is stained
or damaged after installation will be treated as defective work.
7.07 DEFECTIVE WORK
A. Defective work and the opening up of the works to ascertain same shall
be dealt with strictly in accordance with the requirements detailed
elsewhere in the contract document.
B. Replace defective work with materials, goods or work in accordance
with the contract documents. Alternatively submit proposals for any
treatment or making good that is considered will bring the defective
work to the standard required by the contract documents. Such
proposals shall not relieve the contractor of his responsibility to execute
the works to the full intent of the contract documents.
C. The costs as defined in the contract conditions shall include the cost of
any related delay or disruption in the progress of the works, or any other
consequential cost.
7.08 DAMAGE BY INCLEMENT WEATHER
A. The contractor shall not execute any work when it is likely to be
adversely affected by inclement weather and he shall make good any
damage so caused at his own expense.
END OF SECTION 16050