NATIONAL ALUMINIUM COMPANY LIMITED - Rites

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In drawings or specifications wherever both Metric and British units are indicated, the Contractor
shall indicate the equipment dimensions on both the units. Location marking of all equipment shall
be in Metric Units.
5.06 Accessibility
Special attention shall be given to the design, arrangement and assembly of all equipments to
ensure ease of maintenance and renewal of parts.
5.07 Standard Equipment & Materials and Alternates
a) Equipment, material and erection and other services shall be completed in all respects and
in strict accordance with the specifications, except that alternative proposals may be
submitted where stipulated provisions depart from the Contractor’s Standards, provided
that the substitutions are approved as equivalent by the Engineer and the reasons
therefore are stated by the Contractor in his proposal as a result of such substitution.
b) Any request for substitution after the contract is awarded, shall be accompanied with the
difference in price and such substitution can only be made on approval by the Engineer on
behalf of the Purchaser in writing, provided that such substitution does not cause any
addition to the contract price.
5.08 a) All work shall be done in accordance with the applicable portions of the current editions of
the codes and standards of the respective U.S.A., U.K. National and Technical Societies or
equal or with the standards and codes of the Government of India, and in accordance with
the applicable portions of the following codes and standards in particular:
Indian Boiler Regulations
Indian Electricity Act
Indian Electricity Rules
Indian Factories Act
Indian Explosives Act
Indian Standard Institution (IS)
British Standard Institution (BS)
American Society of Mechanical Engineers (ASME)
Institute of Electrical & Electronics Engineers Inc. (IEEE)
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