This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
The original contract for a house usually provides for the wiring for electric lighting and bells, but fixtures are generally left to be provided for by a later agreement, as there is such a great latitude in selection and cost.
For electric light wiring one of two systems is usually employed: the conduit system, where the wires are all run in pipes or conduits, and the knob and tube system, where the wires are run in the clear space between timbers, secured to porcelain knobs, or passing through short tubes of the same material.
In general, the rough wiring of a house may be reckoned at $4.00 per outlet for conduit work, and $2.00 per outlet for knob and tube work.
Switches. Various kinds of switches are used, the two principal kinds being the push button, and the rotary switch.
These vary in price according to make and finish.
A good rotary switch can be had at from 90 cents to $1.00.
Push button switches from $1.00 to $1.10.
Snap switches from 30 to 40 cents.
The cost of wire will vary with the gauge and the insulation but for usual house work should cost, for No. 14 wire, 2 cents a foot.
It is well to remember that, in electric wiring, the larger the house, the more per outlet the wiring will cost. This seems contrary to expectation but is occasioned by the smaller percentage of lights to length of wire.
Bells. The number of call bells in a dwelling will vary according to the plan and choice of the owner.
For an ordinary house the number would range from six to ten, and the cost should be from $18.00 to $25.00 or about $3.00 per bell.
FLOOR PLANS OF "LITTLE ORCHARD FARM" AT CAMP HILL, PENNSYLVANIA.
Wilson Eyre, Architect, Philadelphia, Pennsylvania
For Exterior See Page 332