Page 360 - Offshore Electrical Engineering Manual

CHAPTER

Introduction to 1

Commissioning

This chapter is intended as a general checklist for use when preparing commission-
ing workscopes and should not be treated as exhaustive. Every piece of equipment
and the way that it is intended to be operated, will need to be thoroughly understood
before writing such a document. Any document of this kind should also include ref-
erence to access and permit-to-work procedures specific to the installation where the
commissioning is being carried out.
All test equipment used should have valid calibration certificates, as, apart
from the results of tests being invalid, incorrect equipment control or protective
device settings could render the equipment unsafe and, in some cases, create a
fire or explosion hazard. The test equipment itself, when used in areas where
flammable gas may be present, will also be an ignition hazard, and therefore,
‘hot work’ permits will be required for most of the tests described. It is important
that all test results are recorded so that a complete maintenance history can be
retained for reference, should a failure occur. Some typical test sheets are pro-
vided in Appendix B.
Lastly, all commissioning must accord with the client oil company’s standard
procedures, the relevant British Standards and the manufacturer’s installation and
operating manuals for the equipment concerned.
The commissioning details for the different types of equipment are covered in the
following chapters.

Chapter 2 Generators
Chapter 3 Switchgear
Chapter 4 Electrical Protection, Monitoring and Control
Chapter 5 Large Motors
Chapter 6 Process Monitoring and Control

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