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104. Wiring and Attach ing Sockets

to Fixtures

Place.

ble cut-out for each outlet, protecting both sides of the circuit.

This contractor shall attach

sockets by

means of a (suitable gas attachment) to the Already in (gas) fixtures already in place. These fixtures shall be properly insulated, and shall be wired, in the following manner: -

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with

At each outlet a suitable cut-out shall be provided, protecting both sides of the circuit. In each socket shall be placed the proper lamp, and all shades shall be attached.

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Sockets and lamps shall be suspended by means of pendants from the ceiling. Each pendant to be in length (provided with a cord adjuster) and protected by a double-pole ceiling cut-out. Both at the cutout and in the socket the cord shall be knotted so that in no case will the weight come on the binding screws. Where the cord passes through the neck of the socket it shall be protected by a - bushing. In each socket shall be placed the proper lamp, and all shades. shall be attached.

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Three-Wire System.

This specification is identical with the twowire specification, except in "System," p. 77, sec. 84, in place of which insert the following:

All

S risers feeders ( on the basis of the three-wire system, but the distribution circuits shall consist of two wires only except to outlets for a group of

and mains shall be figured

c. p., lamps or more, and for special circuits specifically mentioned. Care shall be taken in arranging the distribution circuits to have the same number of lamps on each side of the system, and that no circuit shall be connected across the outside wires. The neutral wire shall in all cases be properly tagged and shall be run between the outside wires.

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106. System.

Three-Wire System Adapted to the Two-Wire
System.

This specification is identical with the twowire specification, except in "System,” p. 77, sec. 84, in place of which insert the following:

( risers) All and mains shall consist of 107. System. O feeders ( three wires, but the neutral wire shall consist of two wires, each equal in cross-section to the outside wires, or of one wire equal in cross-section to the outside wires combined, in order that if desired all lights may be operated on the two-wire system; if two neutral wires are run they shall be permanently connected at each cut-out box. All distribution circuits shall consist of two wires only except to outlets for a group of c. P.,

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lamps or more, and for special circuits specifically mentioned. In all three-wire distribution circuits the neutral shall be equal in cross-section to the two outside wires combined. Care shall be taken in arranging the distribution circuits to have the same number of lamps on each side of the system and that no circuit shall be connected across the outside wires or between the neutral wires. The neutral shall in all cases be properly tagged and shall be run between the outside wires.

108. Circuits.

Arc System.

The lights shall be divided into the following circuits:

Circuit No. 1 (Number of lights and location.)

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109. Insulation of Wire.

110. Insulation Resistance.

All wire used in the installation shall be insulated with for inside circuits, and

with for outside circuits.

Each circuit shall test out with an insulation resistance of at least

ohms.

111. Joints.

See p. 80, sec. 92.

112. Method of Wiring.

All interior wires shall be run

Son insulators)

in conduits)

in such a manner that the

highest possible insulation is obtained.

All

wiring shall be neat in its mechanical appear

ance and arrangement.

shall be run

All exterior wires

sion of Lamps.

In the interior of (the) building(s) the lamps 113. Suspenspecified shall be suspended from securely fastened to the ceiling (and provided with a suitable device for raising and lowering). On the exterior of (the) building(s) the lamps specified shall be suspended from securely attached to-, (and provided with a suitable device for raising and lowering).

(Add details concerning any posts, polesteps, ornamental treatment desired, etc.)

Conduit System. Two-Wire.

No wires shall be run in contact with any part of the building material, but the building shall be equipped from the source of supply to each outlet with the insulating conduits of

in such manner as to provide continuous channels or raceways for the wires. The continuity of each tube employed for this purpose shall be such as would be required if it were to be used for conveying water or gas. Strict compliance with this requirement will be demanded.

114. Method of Wiring.

bility.

In order that every wire may be at all times 115. Accessi accessible for inspection, repairs, or renewals

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without injury to the building, the location, sectional division, joining, intermediate and terminal elbowing, the placing of switches, cut-outs, and junction boxes, and the final emergence of the tube beyond the finished surface at the fixture outlet shall be done in strict compliance with this specification.

All appliances employed shall be such as are especially adapted for use in conjunction with the conduit system.

All conduits shall be placed in position S before the plastering is done, and shall be after

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All single conductors shall be insulated with All duplex conductors shall be

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