We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
FOR MANAGERS AND OPERATORS 17 To use this table multiply the distance in feet from the point of departure to the end of the circuit by the number of amperes riGS you wish to use on the circuit. Look in the table under the voltage heading corresponding to the voltage of your lines and find the number nearest to the product you have obtained by the multiplication. Opposite this, in the right-hand column, will be found the size of wire necessary to carry this current with 3 per cent. loss. In running wires along a wall it is often necessary to pass a metal pipe which the knobs will not be long enough to allow the wires to clear. This should be taken care of as per Fig. 3. A is hard rubber insulating tubing. B is the pipe. Another electric wire of opposite polarity may be crossed in the same manner. A joist or timber may be passed as shown in Fig. 4 or the wire may be run directly through it by insulating with porcelain, glass or hard rubber tubing. In making a wire splice, or joint, it is of the utmost importance that it be done right, since a poorly made joint will invariably heat, with consequent loss of power and liability to eventually burn off. Fig. 5 shows some of the ways of making different joints in wire. "A" shows the right and wrong way to skin a wire. If done as at 1 you are likely to cut a slight ring around the wire and this will cause it to break very easily. "B" shows the "Western Union" joint which is most used by wiremen. In- variably use two plyers in making this joint and pull it up per- fectly tight. "C" shows the proper method of tying a wire to