NATIONAL ALUMINIUM COMPANY LIMITED - Rites

(k.) All manufacturing, fabrication and execution of work in connection with the equipment
/ system, prior to the approval of the drawings, shall be at the Contractor’s risk. The
Contractor is expected not to make any changes in the design of the equipment
/system, system, once they are approved by the Employer. However, if some changes are
necessitated in the design of the equipment/ system at a later date, the Contractor may
do so, but such changes shall promptly be brought to the notice of the Employer
indicating the reasons for the change and get the revised drawing approved again in
strict conformance to the provisions of the Technical Specification.
(l.) Drawings shall include all installations and detailed piping and wiring drawings.
(m.) Assessing & anticipating the rrequirement
equirement and supply of all piping and equipment shall
be done by the contractor well in advance so as not to hinder the progress of piping &
equipment erection, subsequent system charging and its effective draining & venting
arrangement as per site suita suitability.
(n.) Any software used by the contractor shall be given to the project manager and
concerned engineer of employer. The contractor shall make the engineer of the
employer aware of the programme. Any computer aided programme shall be approved
subject to giving entire detail to the project manager.
(o.) Drawings must be checked by the Contractor in terms of its completeness, data
adequacy and relevance with respect to Engineering schedule prior to submission to
the Employer. In case drawings are found to be su submitted bmitted without proper endorsement
for checking by the Contractor, the same shall not be reviewed and returned to the
Contractor for re-submission. submission. The contractor shall make a visit to site to see the existing
facilities and understand the layout completel completely y and collect all necessary data /
drawings at site which are needed as an input to the engineering. The contractor shall
do the complete engineering including interfacing and integration of all his equipment,
systems & facilities within his scope of work as well as interface engineering &
integration of systems, facilities, equipment & works under Employer’s scope and
submit all necessary drawings/ documents for the same.
(p.) All drawings shall be reviewed and approved by Engineering coordinator, including the
following drawings / data which require specific approval.
1. Data sheets for various equipments / systems.
2. Field testing procedures for various equipment and piping system.
3. Pre commissioning / commissioning procedures including flushing, Chemical
cleaning, g, steam blowing and hydro test etc. (Wherever applicable) O&M manual
shall also be reviewed and approved by Employer. The content of O&M manual
shall be as specified elsewhere in the specification.
4. Guarantee test procedures.
5. Any other drawings that may be required by the Engineer from time to time.)
6. Data furnished in the bid shall be binding on the contractor even if superior to
the technical specification requirement and any revision shall be done with the
owner/RITES /RITES’s agreement.
Technical Specifications: Sec-5,General Techn chnical Requirements
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