16120.doc

07-733 07-743

SECTION 16120 - CONDUCTORS

PART 1 GENERAL

1.1

QUALITY ASSURANCE

A.

Conductors shall be of American manufacture and made in accordance with the requirements of the National Electrical Code and the Underwriters Laboratories.

B.

Conductors shall be copper. Aluminum is not acceptable except where specifically called for on plans.

1.2

SUBMITTALS

A.

Provide manufacturer’s literature.

PART 2 PRODUCTS

2.1

MATERIALS

A.

Type THW or THWN conductors shall be used in wet or dry locations unless otherwise indicated on the drawings. Type THHN may be used in dry locations.

1. All wiring #12 and larger shall be stranded.

B.

Conductors for fire alarm wiring shall be type TFN insulation.

C.

Connectors

1.

Cable size #6 or larger, use lugs or approved connectors.

2.

Conductors #8 and smaller, use one of the following solderless connections or approved equal:

Ideal Industries "Wing Nut"

3M Co. "Scotchlok"

Buchanan steel splice cap with nylon insulator

2. Contractor shall be responsible for providing appropriate connectors for terminating stranded wire to devices and equipment.

D.

Note any special wiring of auxiliary systems as specified elsewhere or noted on the drawings.

E.

Pre-wired cable shall not be acceptable.

PART 3 EXECUTION

3.1

INSTALLATION

A.

All conductors installed in raceways.

B.

Conductors to be sized in accord with the National Electrical Code except minimum size #12 AWG gauge unless otherwise specified, noted or approved.

C.

Color coded in accord with the following table:

System Voltage EQ \O(O,/)A

EQ \O(O,/)B

EQ \O(0,/)C

Neutral Ground

120/208 Wye

Black Red

Blue White

Green

277/480 Wye

Brown Orange Yellow Gray

Green

1.

Auxiliary systems shall each have their own color coding throughout the respective systems.

D.

Circuits run and numbered to agree with drawings. Combining of circuits other than what is shown on drawings is unacceptable.

E.

Feeders

1.

Splices in feeders are not permitted, unless noted on plans.

3.2

FINAL INSPECTION AND TESTING

A.

Perform an insulation resistance test on all distribution feeders, panelboard feeders, and equipment feeders over 100 amps installed under this contract, including neutrals, using a megohmeter. Apply 500 volts DC to each conductor and maintain for one minute. Minimum value for each conductor shall be 100 megohms at 60 degrees F. Insulation test is to be made between conductors and between conductors and ground.

B. Furnish written report of test data to Contracting Officer.

END OF SECTION 16120

RML AUTOCLAVE REPLACEMENT ( NIH-NIAID RML ( HAMILTON, MT

CONDUCTORS 16120-2