Volume-II of IV - GAIL

1.0 SCOPE
Cathodic Protection Power Supply Modules (CPPSM) working on switch –
mode principle are intended to supply power to cathodic protection
system for under ground pipelines. This specification covers the
requirements for the design, manufacture, testing, delivery to site and
commissioning of the CPPSM (if specified in data sheet).
2.0 CODES AND STANDARDS
2.1 In general the equipment covered by this specification shall, unless
otherwise specified, be in line with the requirements of any of the latest
applicable standards of :
a) Indian Standards Institution (ISI)
b) International Electromechanical Commission (IEC)
c) American Standards Institution (ANSI)
2.2 Wherever the requirements in this specification are in conflict with any of
the above standards, the requirements under this specification shall be
binding.
3.0 SERVICE CONDITIONS
The CPPSM shall be suitable for installation in non air-conditioned
restricted ventilated room in locations having generally warm and dusty
atmosphere. Service condition shall be as specified in the data sheet. It
not specifically mentioned therein, a design ambient temperature of 40 0 C
and an altitude not exceeding 1000 M above mean sea level shall be
considered.
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