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Electrical Systems Commissioning Issue Date: December 9, 2002 16995S 1 SPECIAL SPECIFICATION SECTION 16995S

Electrical Systems Commissioning
Issue Date: December 9, 2002
16995S 1


SPECIAL SPECIFICATION

SECTION 16995S

ELECTRICAL SYSTEMS COMMISSIONING


PART 1 - GENERAL

1.01 DESCRIPTION

A. The purpose of this section is to specify Division 16 responsibilities in the commissioning
process which are being directed by the TE. Other electrical systems testing is required under
the direction of the CM.

B.
The list of commissioned equipment and systems is found in Section 01710S.

C. Commissioning requires the participation of Division 16 to ensure that all systems are
operating in a manner consistent with the Contract Documents. The general commissioning
requirements and coordination are detailed in Division 1. Division 16 shall be familiar with all
parts of Division 1 and the commissioning plan issued by the TE and shall execute all
commissioning responsibilities assigned to them in the Contract Documents.

1.02 DEFINITIONS

A. Refer to section 01715S

1.03 RESPONSIBILITIES

A. Electrical Contractors. The commissioning responsibilities applicable to the electrical
contractor are as follows (all references apply to commissioned equipment only):

B.
Construction and Acceptance Phases

1. Include the cost of commissioning in the contract price.

2. In each purchase order or subcontract written, include requirements for submittal data,
O&M data and training.

3. Attend a commissioning scoping meeting and other necessary meetings scheduled by the
TE to facilitate the Cx process.

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4. Contractors shall provide normal cut sheets and shop drawing submittals to the TE of
commissioned equipment.

5. Provide additional requested documentation, prior to normal O&M manual submittals, to
the TE for development of start-up and functional testing procedures.

a. Typically this will include detailed manufacturer installation and start-up, operating,
troubleshooting and maintenance procedures, full details of any owner-contracted
tests, fan and pump curves, full factory testing reports, if any, and full warranty
information, including all responsibilities of the Owner to keep the warranty in force
clearly identified. In addition, the installation and checkout materials that are actually
shipped inside the equipment and the actual field checkout sheet forms to be used by
the factory or field technicians shall be submitted to the Commissioning Agent.

b. The Commissioning Agent may request further documentation necessary for the
commissioning process.

c. This data request may be made prior to normal submittals.

6. Provide a copy of the O&M manuals submittals of commissioned equipment, through
normal channels, to the TE for review and approval.

7. Contractors shall assist (along with the design engineers) in clarifying the operation and
control of commissioned equipment in areas where the specifications, control drawings or
equipment documentation is not sufficient for writing detailed testing procedures.

8. Provide assistance to the TE in preparation of the specific functional performance test
procedures. Subs shall review test procedures to ensure feasibility, safety and equipment
protection and provide necessary written alarm limits to be used during the tests.

9. Develop a full start-up and initial checkout plan using manufacturers start-up procedures
and the prefunctional checklists from the TE. Submit manufacturers detailed start-up
procedures and the full start-up plan and procedures and other requested equipment
documentation to TE for review.

10. During the startup and initial checkout process, execute and document the electrical-
related portions of the prefunctional checklists provided by the TE for all commissioned
equipment.


Electrical Systems Commissioning
Issue Date: December 9, 2002
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11. Perform and clearly document all completed startup and system operational checkout
procedures, providing a copy to the TE.

12. Address current A/E punch list items before functional testing. Air and water TAB shall
be completed with discrepancies and problems remedied before functional testing of the
respective air- or water-related systems.

13. Provide skilled technicians to execute starting of equipment and to execute the functional
performance tests. Ensure that they are available and present during the agreed upon
schedules and for sufficient duration to complete the necessary tests, adjustments and
problem-solving.

14. Perform functional performance testing under the direction of the TE for specified
equipment in Section 01710S. Assist the TE in interpreting the monitoring data, as
necessary.

15. Correct deficiencies (differences between specified and observed performance) as
interpreted by the TE, CM and A/E and retest the equipment.

16. Prepare O&M manuals according to the Contract Documents, including clarifying and
updating the original sequences of operation to as-built conditions.

17. Prepare red-line as-built drawings for all drawings and final as-builts for contractor-
generated coordination drawings.

18. Provide training of the Owners operating personnel as specified.
19. Coordinate with equipment manufacturers to determine specific requirements to maintain
the validity of the warranty.

20. Power System Studies

a. Provide power system studies that include a complete short-circuit study, equipment
evaluation study and protective device coordination study based on the installed
electrical distribution system.

b. Include in the study all portions of the electrical distribution system from the utility
substation circuit breaker(s) and from alternate sources of power in the electrical
distribution system under study.

c. Cover normal system operating configuration plus any plausible alternate
configurations and operations that could result in maximum fault condition.

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d. Short-Circuit Study

(1) Perform short circuit study using the power tools for windows software
package as produced by SKM, Inc.

(2) Include the following study input data: the utility source short-circuit single- and
three-phase contribution, with the X/R ratio, the resistance and reactance
components of each branch impedance, motor and generator contributions,
base quantities selected, and other circuit parameters as applicable.

(3) Calculate the short-circuit momentary and interrupting duty on the basis of
maximum available fault current at each bus in the distribution system down to
the following points in the low-voltage system:

(a) 480 volt system busses where available short circuit current is less than
14,000 amperes RMS symmetrical.

(b) 208 or 240 volt system busses where available short circuit current is less
than 10,000 amperes RMS symmetrical.

e. Equipment Evaluation Study

(1) Perform an equipment evaluation study to determine the adequacy of circuit
breakers, controllers, surge arresters, busways, switches and fuses.

(2) Tabulate and compare the short-circuit ratings of the devices with the available
fault currents.

(3) Notify the Contract Administrators Technical Representative of any problem
areas or inadequacies in the electrical distribution system equipment.

f. Protective Device Coordination Study

(1) Perform protective device coordination study to select or to check the
selections of power fuse ratings, protective relay characteristics and settings,
ratios and characteristics of associated voltage and current transformers, and
low-voltage breaker trip characteristics and settings.

(2) Perform protective device coordination study using the power tools for
windows software as produced by SKM, Inc.

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(3) Include in the coordination study all voltage classes of equipment from the
utilities incoming line protective device down to and including each low voltage
load protective rated 100 amperes and larger.

(4) Provide time-current characteristic plots of the specified protective devices on
11"x17" log-log coordination paper.

(a) Provide coordination plots for both phase and ground protective devices on
a complete system basis.

(b) Include on plots complete titles, representative one-line diagram and legend,
associated utility relay or fuse characteristics, significant motor starting
characteristics, complete parameters of transformers, complete operating
bands of circuit breaker trip curves, and fuse curves.

(c) Indicate on the plots the types of protective devices selected, proposed
relay taps, time dial and instantaneous trip settings, ANSI transformer
magnetizing inrush and withstand curves per ANSI C37.91, cable damage
curves, symmetrical and asymmetrical fault currents.

(d) Comply with NFPA-70, National Electrical Code. Maintain reasonable
coordinat