S-1 — المواصفات العامة للتركيبات الكهربائية
A البنود العامة
الصفحة 9 في الوثيقة الأصلية
عرض PDFA - GENERAL CLAUSES.
A.1 SCOPE:
A.1.1 This specification covers the supply, delivery to site, erection and commissioning of all
materials and equipment required in connection with the Electrical Services of Government
Projects and all other projects where this specification is specifically applied.
A.1.2 This specification does not cover street and external lighting on lighting columns. All street and
external lighting including walkway lighting shall be dealt with by the Street Lighting
Department - Electrical Distribution Networks Sector - MEW.
A.1.3 The external lighting that includes shaded car park lighting, decorative lighting , lighting
bollards, lighting on boundary walls, up lights for trees, stair lighting , floor lighting, façade
lighting, etc. are to be designed and installed in accordance with these regulations.
A.1.4 The designs of street and external lighting systems whether or not the electrical power supply is
fed from the project itself or by MEW , shall be submitted to the MEW‟s Street Lighting
Department for approval prior to submitting the drawings to the Electrical Installation
Department of MEW.
A.2 GENERAL:
A.2.1 The entire works shall be carried out in strict accordance with this specification, the various
electrical drawings, the schedule of points and latest issue of the Rules and Regulations for the
Electrical Installation works issued by the Ministry of Electricity & Water (MEW R-1) and
amendments.
A.2.2 The General Conditions of Contract and any special conditions shall be applied to the Electrical
Installation, in as far as they are applicable.
A.2.3 The tenderer shall complete the form (E) for the experience of the electrical contractor or the
sub-contractor and shall submit them with the offer.
A.2.4 The contractor shall refer only to those items of this specification which are applicable for the
particular project.
A.2.5 The Contractor shall refer to section of "Particular specifications" for any details not included in
this Standard Specifications but is required in the particular project.
A.2.6 The contractor shall refer to all relevant civil, mechanical, A/C...etc. drawings and obtain for
himself the location and routes of all gas and water services, A/C ducts, etc., so as to maintain
adequate clearance between electrical and other services.
The position of all fittings, fans, equipment, apparatus, etc... indicated on the drawings are to be
taken as approximate only and are intended to indicate generally the arrangement of the works.
The exact positions of all fittings, fans, equipment, apparatus , etc....shall be co-ordinated with
other works and services and prior approval of Engineer is required.
A.2.7 Approval of Engineer does not relieve the contractor from his contractual obligation if later on
found that these do not comply with (specification and) site arrangements.
9
A.2.8 Should any portion of the works be reasonably and obviously be inferred as necessary for the
complete, safe and satisfactory operation of the installation as a whole, but not expressly
described or specified, the Contractor shall notify the Engineer before executing such works.
A.2.9 The contractor shall submit all the required samples, technical details, original catalogues in
English language, drawings, wiring diagram called for in the individual clauses of
this specifications.
Any deviation from the specification should be mentioned clearly in the submittal under
heading deviation or else the Engineer shall have the right to reject any material at any period
of the contract.
A.3 ELECTRICAL SUPPLY:
All electrical works, equipment, accessories and fittings shall be designed and manufactured to
operate continuously in the electricity supply system having the following characteristics:
Voltage : 415 Volts ± 6%, 3 phase, 4 wire
240 Volts ± 6%, single phase.
Frequency : 50 Hz ± 4%.
Neutral : Solidly earthed, T.T. system
Fault levels : 31, 35 & 43 MVA at 415 volts, respectively for 1000, 1250 &
1600 KVA Kuwait Rating transformers.
Fault duration : 0.5 seconds
A.4 CLIMATIC CONDITION:
Extremes of temperature and humidity are experienced in Kuwait. Periods of high humidity are
common and humidity of 100% has been recorded at 30oC.
Violent sand and dust storms occur and even on comparatively calm days fine dust is carried in
the atmosphere.
All apparatus and equipment shall be capable of continuous and prolonged operation in the
ambient temperature stated below:
Max. ambient temperature
if installed within buildings of
substantial construction having
good heat insulating properties
and adequate ventilation: . . 40oC.
Max. ambient temperature in Summer : . . 55oC.
Temperature within transformer
room, engine rooms and boiler
rooms, etc...may rise to: . . 55oC.
10
Max. sun radiation temperature in Summer: . . 84oC.
Minimum ambient temperature in Winter. . . - 6 oC
A.5 DERATING:
Unless otherwise mentioned due allowance has been made in the design of the electrical
installations described in this specifications and drawing, for the severe climatic conditions of
Kuwait and all equipment, wires, cables, switches, etc., specified herein have been adequately
derated.
A.6 ELECTRICAL CONTRACTOR:
The electrical works shall be carried out by an Electrical Contractor or sub -contractor who is
on the Central Tenders Committee's approval list of Electrical Contractors and under
categories specified in the particular condition of the project.
The Electrical Contractor must have at least one electrical engineer registered in
Kuwait Society of Engineers and electrical supervisor for ensuring proper supervision of
the work. The electrical engineer shall be available at site periodically and during the time
as per particular condition of Contract or as agreed by the Engineer. The electrical supervisor
should be available at site during working hours.
The Contractor shall visit the site and acquaint himself of any conditions whatsoever which
may in any way affect the carrying out of his works as no claims will be allowed for lack of
knowledge in this respect.
A.7 MATERIALS:
Attention of all Tenderers is hereby drawn to the following:
A.7.1
A.7.2
A.7.3
All materials, equipment and components shall be the best of their respective kind, from the
standard range of product of repute d manufacturers and shall be suitable for prolonged and
trouble-free service in the climatic conditions specified under A.4. All individual items of
material shall be of the same make throughout the project unless spe cifically approved by the
Engineer and shall comply as a minimum with the latest relevant recommendations of the
International Electro -Technical Commission (I .E.C.) and if this is not available to the latest
relevant British Standard Specifica tions (B.S.S). Materials of other national standards may also
be employed provided they are comparable with I.E.C./B.S.S. This applies to quality of material
and testing etc. If standards as mentioned above contradict with this tender specifications, then the
requirements of this specifications shall apply.
Electrical Contractors who wish to base their offers on standards other than those mentioned
under (A.7.1) may do so provided that they confirm in their offers that such standards meet the
requirements under (A.7.1) as a minimum, and in due time, the successful Electrical
Contractor will be asked to pro ve this and if needed, be verified by the Inspectors appointed
by the Engineer.
The successful Elec trical Contractor shall submit to the Electrical Engineer full details and
particulars of all the equipment he proposes to install along with the documents listed against
each item.
11
A.8 WORKING DRAWINGS:
The working drawings shall be prepared with AutoCAD and the Contractor shall provide at least
four (4) sets of working drawings unless otherwise specified showing the following:
a) Cabling, 415 V Switchgear & Distribution Board:
Exact cable routes of all underground cable s whether laid underground or on cable
ducts. Location of 415 volt switchgear and distribution boards should also be shown.
(Scale not more than 1:200)
Section of each portion of the routes to show the cable arrangement, spacing,
fixation, filling, manholes....etc. Dimension shall be shown where applicable (Scale of
Section to be 1:50).
In addition to above a further layout drawings shall show in detail the location of the
415 volts switchgears , method of fixation and cable connec tions, cable trenches,
duct....etc. (Scale to be 1:50).
These drawings shall be submitted within one month from hand ing over the site and
approval of the Engineer should be taken before commencing any portion of the work.
b) Trunking and conduits:
The run of conduits and trunkings for lighting and power shall show the size of the
conduit or trunking, the number and size of wires in each conduit or trunking, draw in
and draw out junction boxes. Scale to be 1:50 maximum.
NOTE:- If separate lighting and power drawings shall be submitted scale can be 1:100.
The drawings shall be submitted within two months from handing over the site and at
least one month from the commencement of the work.
c) Earthing system:
Complete design of earthing system with detailed description of particulars.
A.9 FINAL RECORD DRAWINGS:
Upon completion. of the electrical work and at least three weeks before the date of inspection,
the contractor shall hand over to the Engineer one mother print of diazo polyester film of
minimum thickness of 0.064 mm (2.5 mill) and five white paper prints of the "as fitted"
electrical installation drawings made out in five sets, each set in a binder form, giving
particulars of the positions of all switchgear, distribution boards, lights and power outlets,
fittings, equipment, etc. together with the schedule of circuits and all other information
relevant to the electrical services. The "as fitted" electrical installation drawings shall be
prepared with AutoCAD and the Electrical Contractor must also submit CAD files of all "as
fitted" drawings in three (3) complete sets of Compact Discs (CD).
12
A.10 MICRO-FILM:
3 sets of standard 35 mm. Micro-film aperture cards photographed from "as fitted" drawings
shall be submitted along with above mentioned drawings and compact discs.
Details on the reverse side of the micro film aperture card shall include -
Supplier:
Contract number:
Title of the Project:
Title of the Drawings:
Drawing number:
Reduction ratio:
Date:
Front face of the card must be left blank.
A.11 MAINTENANCE AND INSTRUCTION MANUALS:
Three sets at least one original of maintenance and instruction manuals and catalogues enclosed
in adequate binders should be submitted for composite equipment and as directed by the
Engineer.
A.12 SPARES:
The contractor shall supply and deliver to owner's stores all spare materials as listed in the Bills
of Quantity.
A.13 INSPECTION AND TESTING:
The contractor should submit the necessary "Test Form", "Load Form" duly filled in along with
one set of approved drawings and 2 sets of "as fitted" drawings (not working drawings) to the
Engineer, at least two weeks before requesting for inspection and testing of the installation.
A.14 COMMISSIONING:
The Contractor shall commission all equipment included in the Electrical installation after the
electrical supply has been connected to the main switchboard.
13
A.1 SCOPE:
A.1.1 This specification covers the supply, delivery to site, erection and commissioning of all
materials and equipment required in connection with the Electrical Services of Government
Projects and all other projects where this specification is specifically applied.
A.1.2 This specification does not cover street and external lighting on lighting columns. All street and
external lighting including walkway lighting shall be dealt with by the Street Lighting
Department - Electrical Distribution Networks Sector - MEW.
A.1.3 The external lighting that includes shaded car park lighting, decorative lighting , lighting
bollards, lighting on boundary walls, up lights for trees, stair lighting , floor lighting, façade
lighting, etc. are to be designed and installed in accordance with these regulations.
A.1.4 The designs of street and external lighting systems whether or not the electrical power supply is
fed from the project itself or by MEW , shall be submitted to the MEW‟s Street Lighting
Department for approval prior to submitting the drawings to the Electrical Installation
Department of MEW.
A.2 GENERAL:
A.2.1 The entire works shall be carried out in strict accordance with this specification, the various
electrical drawings, the schedule of points and latest issue of the Rules and Regulations for the
Electrical Installation works issued by the Ministry of Electricity & Water (MEW R-1) and
amendments.
A.2.2 The General Conditions of Contract and any special conditions shall be applied to the Electrical
Installation, in as far as they are applicable.
A.2.3 The tenderer shall complete the form (E) for the experience of the electrical contractor or the
sub-contractor and shall submit them with the offer.
A.2.4 The contractor shall refer only to those items of this specification which are applicable for the
particular project.
A.2.5 The Contractor shall refer to section of "Particular specifications" for any details not included in
this Standard Specifications but is required in the particular project.
A.2.6 The contractor shall refer to all relevant civil, mechanical, A/C...etc. drawings and obtain for
himself the location and routes of all gas and water services, A/C ducts, etc., so as to maintain
adequate clearance between electrical and other services.
The position of all fittings, fans, equipment, apparatus, etc... indicated on the drawings are to be
taken as approximate only and are intended to indicate generally the arrangement of the works.
The exact positions of all fittings, fans, equipment, apparatus , etc....shall be co-ordinated with
other works and services and prior approval of Engineer is required.
A.2.7 Approval of Engineer does not relieve the contractor from his contractual obligation if later on
found that these do not comply with (specification and) site arrangements.
9
A.2.8 Should any portion of the works be reasonably and obviously be inferred as necessary for the
complete, safe and satisfactory operation of the installation as a whole, but not expressly
described or specified, the Contractor shall notify the Engineer before executing such works.
A.2.9 The contractor shall submit all the required samples, technical details, original catalogues in
English language, drawings, wiring diagram called for in the individual clauses of
this specifications.
Any deviation from the specification should be mentioned clearly in the submittal under
heading deviation or else the Engineer shall have the right to reject any material at any period
of the contract.
A.3 ELECTRICAL SUPPLY:
All electrical works, equipment, accessories and fittings shall be designed and manufactured to
operate continuously in the electricity supply system having the following characteristics:
Voltage : 415 Volts ± 6%, 3 phase, 4 wire
240 Volts ± 6%, single phase.
Frequency : 50 Hz ± 4%.
Neutral : Solidly earthed, T.T. system
Fault levels : 31, 35 & 43 MVA at 415 volts, respectively for 1000, 1250 &
1600 KVA Kuwait Rating transformers.
Fault duration : 0.5 seconds
A.4 CLIMATIC CONDITION:
Extremes of temperature and humidity are experienced in Kuwait. Periods of high humidity are
common and humidity of 100% has been recorded at 30oC.
Violent sand and dust storms occur and even on comparatively calm days fine dust is carried in
the atmosphere.
All apparatus and equipment shall be capable of continuous and prolonged operation in the
ambient temperature stated below:
Max. ambient temperature
if installed within buildings of
substantial construction having
good heat insulating properties
and adequate ventilation: . . 40oC.
Max. ambient temperature in Summer : . . 55oC.
Temperature within transformer
room, engine rooms and boiler
rooms, etc...may rise to: . . 55oC.
10
Max. sun radiation temperature in Summer: . . 84oC.
Minimum ambient temperature in Winter. . . - 6 oC
A.5 DERATING:
Unless otherwise mentioned due allowance has been made in the design of the electrical
installations described in this specifications and drawing, for the severe climatic conditions of
Kuwait and all equipment, wires, cables, switches, etc., specified herein have been adequately
derated.
A.6 ELECTRICAL CONTRACTOR:
The electrical works shall be carried out by an Electrical Contractor or sub -contractor who is
on the Central Tenders Committee's approval list of Electrical Contractors and under
categories specified in the particular condition of the project.
The Electrical Contractor must have at least one electrical engineer registered in
Kuwait Society of Engineers and electrical supervisor for ensuring proper supervision of
the work. The electrical engineer shall be available at site periodically and during the time
as per particular condition of Contract or as agreed by the Engineer. The electrical supervisor
should be available at site during working hours.
The Contractor shall visit the site and acquaint himself of any conditions whatsoever which
may in any way affect the carrying out of his works as no claims will be allowed for lack of
knowledge in this respect.
A.7 MATERIALS:
Attention of all Tenderers is hereby drawn to the following:
A.7.1
A.7.2
A.7.3
All materials, equipment and components shall be the best of their respective kind, from the
standard range of product of repute d manufacturers and shall be suitable for prolonged and
trouble-free service in the climatic conditions specified under A.4. All individual items of
material shall be of the same make throughout the project unless spe cifically approved by the
Engineer and shall comply as a minimum with the latest relevant recommendations of the
International Electro -Technical Commission (I .E.C.) and if this is not available to the latest
relevant British Standard Specifica tions (B.S.S). Materials of other national standards may also
be employed provided they are comparable with I.E.C./B.S.S. This applies to quality of material
and testing etc. If standards as mentioned above contradict with this tender specifications, then the
requirements of this specifications shall apply.
Electrical Contractors who wish to base their offers on standards other than those mentioned
under (A.7.1) may do so provided that they confirm in their offers that such standards meet the
requirements under (A.7.1) as a minimum, and in due time, the successful Electrical
Contractor will be asked to pro ve this and if needed, be verified by the Inspectors appointed
by the Engineer.
The successful Elec trical Contractor shall submit to the Electrical Engineer full details and
particulars of all the equipment he proposes to install along with the documents listed against
each item.
11
A.8 WORKING DRAWINGS:
The working drawings shall be prepared with AutoCAD and the Contractor shall provide at least
four (4) sets of working drawings unless otherwise specified showing the following:
a) Cabling, 415 V Switchgear & Distribution Board:
Exact cable routes of all underground cable s whether laid underground or on cable
ducts. Location of 415 volt switchgear and distribution boards should also be shown.
(Scale not more than 1:200)
Section of each portion of the routes to show the cable arrangement, spacing,
fixation, filling, manholes....etc. Dimension shall be shown where applicable (Scale of
Section to be 1:50).
In addition to above a further layout drawings shall show in detail the location of the
415 volts switchgears , method of fixation and cable connec tions, cable trenches,
duct....etc. (Scale to be 1:50).
These drawings shall be submitted within one month from hand ing over the site and
approval of the Engineer should be taken before commencing any portion of the work.
b) Trunking and conduits:
The run of conduits and trunkings for lighting and power shall show the size of the
conduit or trunking, the number and size of wires in each conduit or trunking, draw in
and draw out junction boxes. Scale to be 1:50 maximum.
NOTE:- If separate lighting and power drawings shall be submitted scale can be 1:100.
The drawings shall be submitted within two months from handing over the site and at
least one month from the commencement of the work.
c) Earthing system:
Complete design of earthing system with detailed description of particulars.
A.9 FINAL RECORD DRAWINGS:
Upon completion. of the electrical work and at least three weeks before the date of inspection,
the contractor shall hand over to the Engineer one mother print of diazo polyester film of
minimum thickness of 0.064 mm (2.5 mill) and five white paper prints of the "as fitted"
electrical installation drawings made out in five sets, each set in a binder form, giving
particulars of the positions of all switchgear, distribution boards, lights and power outlets,
fittings, equipment, etc. together with the schedule of circuits and all other information
relevant to the electrical services. The "as fitted" electrical installation drawings shall be
prepared with AutoCAD and the Electrical Contractor must also submit CAD files of all "as
fitted" drawings in three (3) complete sets of Compact Discs (CD).
12
A.10 MICRO-FILM:
3 sets of standard 35 mm. Micro-film aperture cards photographed from "as fitted" drawings
shall be submitted along with above mentioned drawings and compact discs.
Details on the reverse side of the micro film aperture card shall include -
Supplier:
Contract number:
Title of the Project:
Title of the Drawings:
Drawing number:
Reduction ratio:
Date:
Front face of the card must be left blank.
A.11 MAINTENANCE AND INSTRUCTION MANUALS:
Three sets at least one original of maintenance and instruction manuals and catalogues enclosed
in adequate binders should be submitted for composite equipment and as directed by the
Engineer.
A.12 SPARES:
The contractor shall supply and deliver to owner's stores all spare materials as listed in the Bills
of Quantity.
A.13 INSPECTION AND TESTING:
The contractor should submit the necessary "Test Form", "Load Form" duly filled in along with
one set of approved drawings and 2 sets of "as fitted" drawings (not working drawings) to the
Engineer, at least two weeks before requesting for inspection and testing of the installation.
A.14 COMMISSIONING:
The Contractor shall commission all equipment included in the Electrical installation after the
electrical supply has been connected to the main switchboard.
13