The Electrical Code of the City of New York1913 |
Загальні терміни та фрази
alternating current amperes approved insulating approved metal approved rubber arc lamps armored cable attached base braid building bushings cabinets capacity carrying cent circuit breakers coils combustible material commissioner comply connection construction cut-out degrees Fahrenheit designed device diameter direct current electrical conductors enclosed fuses exposed Fahrenheit feet fire-resisting fireproof fixtures floor following table gas pipes ground wire inch in thickness inflammable material installation rules insulating covering insulating material junction boxes knife switches knobs less liable light lightning arresters link fuses live metal located lugs marked mechanical metal conduit metal moulding moisture motors mounted National Electrical Code non-combustible operating outlet boxes pole porcelain potential prevent protected rated receptacles resistance rheostat rosettes rubber insulating Section secured sockets soldered space special permission strain insulator sulating supporting screws surface wired switchboard switches terminals threads tion transformers tube Type Letters underground voltage volts walls waterproof Wires-Continued
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Сторінка 19 - ... cabinets. Where there is any liability of short circuits across their exposed live parts being caused by accidental contacts, a railing must be erected around them.
Сторінка 103 - National Electrical Code Standard." 3. Name of the manufacturing company and, if desired, trade name of the wire. 4. Month and year when manufactured. . 5. The proper type letter for the particular style of wire or cable as given for each type of insulation in Nos.
Сторінка 43 - Circuit-breakers must not be set more than 30 per cent, above allowable carrying capacity of the wire, unless a fusible cut-out is also installed on the circuit. Where...
Сторінка 23 - ... (c) Must be at least seven feet above the highest point of flat roofs', and at least one foot above the ridge of pitched roofs over which they pass or to which they are attached.
Сторінка 31 - Section f, or may be made to water piping systems running into the buildings. This connection may be made by carrying the ground wire into the cellar and connecting on the street side of meters, main cocks, etc.
Сторінка 44 - Single-throw knife switches shall be so placed that gravity will not tend to close them. Double-throw knife switches may be mounted so that the throw will be either vertical or horizontal as preferred, but if the throw be vertical a locking device shall be provided which will insure the blades remaining in the open position when so set.
Сторінка 188 - The heat coil Is designed to warm up and melt out with a current large enough to endanger the instruments if continued for a long time, hut so small that it would not Wow the fuses ordinarily found necessary for such instruments.
Сторінка 1 - It shall be unlawful after the passage of this act for any corporation or individual, to take up the...
Сторінка 176 - The oil tank shall be marked in a suitable manner to indicate the proper oil level. When such device carries a visual oil indicator, the marking shall be for the proper oil level with the starter assembled.
Сторінка 137 - A set screw gives a contact at only one point, is more .likely to become loosened, and is almost sure to cut into the wire. For the smaller sizes, a screw and washer connection with upturned lugs on the switch terminal gives a satisfactory contact. .i. Test. Must operate successfully at 50 per cent overload in amperes and 25 per cent excess voltage, under the most severe conditions with which they are liable to meet in practice.