Equipment Spaces and Rooms: Verify 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.

Equipment shall be capable of withstanding the project environmental conditions specified here below encountered at the installed location without mechanical or electrical damage or degradation of operating capability, unless otherwise specified. For devices located in harsh environments such as interior uncontrolled or exterior environments, the Contractor shall provide the necessary housings or enclosures to ensure proper equipment operation and performance.

All electrical equipment including transformers, switchgears, cables, relays, lighting fixtures, motors, etc. shall be designed or derated for continuous and trouble free service under the following climatic conditions: Interior, Controlled Environment – where installed indoors.
Exterior Environment – where installed outdoors.

Equipment locations shown on the Drawings indicate approximate locations and
general layout of equipment. Exact and final locations and layouts together with dimensions, weights, mounting methods and accessories, where relevant, shall be shown on Contractor’s shop and construction drawings.

Wiring layouts shown on the Drawings shall be used as a guide only to defining basic positions, circuiting, loading and switching arrangements. Actual layouts and details of routing of circuits shall be shown on the Contractor’s shop and construction drawings.

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.

Submit for approval the manufacturer/supplier calculations for the following systems, prior to ordering/manufacturing the material:

1. Indoor and outdoor lighting distribution, with necessary supporting documents and photometric data of the lighting fixtures proposed and approved by the Contractor.
2. Circuit breakers selectivity and discrimination calculation study for a full
   selective and discriminated distribution scheme.
3. Cables and busways ampacity.
4. Voltage drop and short circuit calculations after verification of cable and
   breaker sizes.
5. Generators sizing calculations.
6. Power factor correction capacitors sizing based on the final approved loads.
7. Battery bank calculations to fulfil the specification requirements provided for
   the specific equipment.
8. Rating / derating calculations for the specified equipment.
9. Lightning risk assessment and energy coordination studies for surge
   protection.
10. Harmonic analysis.
11. Earthing.
12. Relay settings.
13. Design calculations associated with power consumption and heat dissipation, link budget, fiber count, Quality of Service (QoS), redundancy, reliability an service availability.
14. Any required calculation necessary to define component/equipment sizes for the proper operation of the electrical and to confirm compliance with specified Regulations and Standards.

Technical Literature: 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 Engineer that proposed equipment and systems are suitable and adequate.

List of Proposed Manufacturers: Of all equipment and materials, including all items for which choice of manufacturer is at own discretion, shall be submitted for approval.

Any assembled equipment to be supplied for the project shall be assembled by the manufacturer or his authorized assembler. Submit the necessary documents to substantiate the above including the assembler staff training, quality control,
etc. The Engineer reserves the right to reject any local assembler if the information submitted.
is not sufficient. The Engineer’s rejection in that respect is final and not subject to discussion.

Submit manufacturer’s type and routine test certificates
and reports for equipment and devices. Complete test results shall be submitted in clearly identified and organised booklets, indicating item of equipment, make, model, type, date of tests, type of tests, descriptions and procedures. Include in the test reports the Quality Assurance Certification, the standards to which the equipment comply, and the standards to which the equipment was tested.

Locally manufactured/assembled equipment shall comply with the relevant standards recommendations and shall be witnessed by Engineer, where required in the relevant Specifications Section. If the manufacturer’s test certificates/tests are not complying with the standards, then independent laboratory tests shall be carried out on equipment in accordance with the Specification and the Standards, and as required by Engineer. The Engineer’s requirements in that respect are final and not subject to discussion.

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.

Submit samples of all equipment and materials for approval. Major items of
equipment for which samples cannot be submitted shall be demonstrated in existing installations or by manufacturer’s information, test certificates and reports.

Prior to Substantial Completion, submit Record Drawings certified by the Engineer on installed electrical systems, in accordance with requirements of the Project “General Requirements”. The As-Built (Record) Drawings, where
applicable, shall include data on existing works. The As-Built Records shall be made progressively as the Work proceeds.

Submit CVs of electrical Engineers, electrical personnel, and quality personnel, for
Engineer’s review and approval.

Sequence, coordinate, and integrate installing electrical materials and equipment for efficient flow of the Work. Coordinate installing large equipment requiring positioning before closing in the building.

Equipment shall be the latest standard product of the manufacturer. Component parts shall 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.

Equipment and materials shall be stored in an approved
location, under cover, free from humidity, dust, debris and rodents. Equipment sensitive to heat and humidity shall be kept in climatically conditioned areas until installed and handed over.

Label and identify all equipment, instruments, control and electrical devices etc. to indicate duty, service or function, to the satisfaction of Engineer. Labels shall be laminated anodized Aluminum discs with black surface and white core with incised lettering in English.
Alternative methods of labelling may be submitted for approval. Fix labels with noncorrodible screws to equipment, or to adjacent permanent surfaces or as approved by Engineer.

Equipment Nameplates: Non-corroding, robust metal, inscribed in English, and firmly fixed to equipment at factory. Nameplates shall indicate name and address of manufacturer, model, serial number, basic characteristics and ratings of equipment and shall include elementary diagrams etc., all in accordance with the Standards. Equipment shall also be further identified after location at site, indicating the nomenclature number as per approval.
As a general practice, the identification labels shall be suitably located on adjoining surface or on separate support and not on the electrical device which could be removed and replaced.

Certificate of Origin: For each lot of cable supplied, provide a certificate of origin
issued by manufacturer stating origin, date of manufacture, composition, Standards to which it complies and test certificates. All test certificates shall comply with the test requirements of the relevant standard to which the cable is manufactured.

Standards: Unless otherwise specified, equipment and materials shall be manufactured and installed in compliance with the relevant recommendations of the following or other equal and approved standards:

1. IEC: The International Electro-technical Commission.
2. ISO: The International Standardization Organization.
3. CENELEC: European Committee for Electrotechnical Standardization.
4. CCITT: The International Telephone and Telegraph Consultative Committee.
5. CCIR: The International Radio Consultative Committee.
6. CISPR: The International Special Committee on Radio Interference.
7. IET: The Institution of Engineering and Technology.
8. BS: British Standards.
9. CIE: International Commission of Illumination.
10. ITU: International Telecommunication Unit.
11. NEBS: Network Equipment Building System