Page 217 - Offshore Electrical Engineering Manual

204 CHAPTER 1 Notes on Design Project Organization and Documentation

installation inspectors. In addition to an installation general code of practice, this
document should also contain a series of blank test sheets for recording all electrical
equipment precommissioning tests.
The arrangements for preservation of the equipment will need to continue while
erection is completed. It is important to produce or obtain from the manufacturer a
written erection procedure well before the contractor starts working. This will allow
the procedure to be checked for compatibility with the relevant construction pack-
age and for any operation that might be dangerous to personnel or risk damaging the
equipment.
The procedure should identify every item in the plant the installation contractor
will need to install the equipment, so that space may be allocated for it and, if it is
a source of ignition, electromagnetic interference, etc., the relevant precautions can
be taken in advance. When cables are being installed or electrical equipment com-
missioned, the installation contractor should be required to mark up a set of drawing
prints showing any changes to cable routes, terminations, etc. which prove necessary.
These ‘as-built’ drawings are then returned to the design office for review and if
accepted, the changes should be incorporated in the drawing masters. Providing the
work is done to the inspector’s satisfaction, the contractor will receive a certificate of
acceptance, which he or she will need for invoicing purposes.
Commissioning and precommissioning tests are covered in PART 7
Chapters 1–5.
Practical notes on the installation of particular equipment are given in PART 7
Chapter 1.
Please also refer to PART 2 Chapter 8 for electrical cable selection, sizing, etc.