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Simon Storage, Fluorobenzene Gantry / Tank 24
Instrument & Electrical Installation Tender Package
DOCUMENT REF: SI347001.INS
ISSUE: B DATE: 13.10.97
PAGE: 12 OF 23
2.11
Testing and Commissioning
2.11.1 Testing
On completion of any installation work the Contractor shall carry out tests to ensure that it
has been correctly executed and is safe to commission. This section provides a guide to the
minimum normal requirements. Additional or special testing of particular equipment or
components may be necessary and if so shall be carried out in accordance with any
applicable instructions or recommendations. These tests must be carried out by a
COMPEX certified person.
Visual Inspection
, during the course of installation the Contractor shall check completed
work for loose connections, removal of installation debris, temporary links etc. Before
testing, a final inspection shall take place to ensure that tests may commence in safety.
visual inspection shall also include tags, labels, terminal numbers and the like.
Safety Procedures
, for any tests which may involve danger to personnel, the Contractor
shall 'tape off' the area and display warning notices.
Earth Tests
, as soon as possible after establishment, the value of the plant earth(s) shall be
measured, preferably using an instrument specifically for this purpose. Tests shall
preferably be carried out in dry weather.
Continuity of all earth paths shall be checked
, loop impedance values shall be measured
and recorded for all or sample circuits at the discretion of the Engineer. Any sample
testing shall involve circuits furthest from the point of supply.
Insulation Tests
, insulation tests shall be carried out on all cables and equipment using a
'Megger' of appropriate voltage. Low voltage devices (e.g. electronic circuitry) which could
suffer damage thereby, shall be disconnected prior to testing.
Di-electric tests on insulating oil shall be carried out only if required by the Engineer.
Pressure Tests
, it may be assumed that pressure testing (over-potential) of equipment will
have taken place at works prior to despatch and need be repeated only if required by the
Engineer.
In general and unless expressly excluded, all HV cables shall undergo a site pressure test
prior to energising.
Injection Tests
, injection tests on protective relays shall be carried out at the discretion of
the Engineer.
Phase Rotation
, supplies to principle load centres shall be checked for correct phase
rotation.