Standard Wiring for Electric Light and Power: As Adopted by the Fire Underwriters of the United States ...Cushing, 1915 - 224 стор. |
Загальні терміни та фрази
3-Way Switch alternating current amperes Annunciator appliances approved arc lamps armature branch circuits brushes Bryant Electric building BURNLEY cabinets carrying capacity cent central station Chicago circuit breaker circular mils conductors connected construction copper cord cross arms cut-out Cutler-Hammer devices Diameter direct current distance dynamo Enclosed Fuse feet Fire Underwriters flexible floor Flush Frank Adam ft.-lbs gage glass ground wire heating HEMINGRAY Incandescent Lamps 50 inch installed Insulated Wire insulating iron knife switches knobs Lamps 50 Watt least lighting Fixture Macallen machine material MAZDA metal conduit motor moulding National Electrical Code non-combustible ohms outlet box panel pipe placed plate plug pole porcelain prevent protected pulley Pyrene receptacles resistance rheostat Rubber Covered screws socket soldered Splicing Standard Steel Street switchboard Telephone tion tube underground UNDERWRITERS LABORATORIES voltage Volts Lost wall Watt each equivalent Weatherproof Westinghouse Elec Wire & Cable York
Популярні уривки
Сторінка 192 - ... 6. Continue artificial respiration without interruption until natural breathing is restored, if necessary, four hours or longer, or until a physician declares the patient is dead. 7. As soon as this artificial respiration has been started and while it is being continued, an assistant should loosen any tight clothing about the patient's neck, chest or waist.
Сторінка 105 - Must be placed at every point where a change is made in the size of wire (unless the cut-out in the larger wire will protect the smaller).
Сторінка 111 - 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 98 - All burrs or fins should be removed from the fixtures before the wires are drawn in. The tendency to condensation within the pipes should be guarded against by sealing the upper end of the fixture. In combination fixtures, where the wiring is concealed between the inside pipe and outer casing, the space between pipe and casing should be at least a quarter of an inch to allow plenty of room for the insulation of the wires without jamming. Fixtures should be tested for "contacts" between conductors...
Сторінка 103 - The cut-out or circuit breaker should always be the first thing that the service wires are connected to after entering the building; the switch next, and then the other fixtures or devices in their order. This arrangement is made so that the cut-out or circuit breaker will protect all wiring in the building, and the opening of the switch will -disconnect all the wiring.
Сторінка 132 - No. 17 a) for each lamp or each series of lamps. The branch conductors should have a carrying capacity about fifty per cent, in excess of the normal current required by the lamp...
Сторінка 79 - Must be so placed in wet places that an air space will be left between conductors and pipes in crossing, and the former must be run in such a way that they cannot come in contact with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause trouble on a circuit. g. The installation of electrical conductors in wooden moulding, or on insulators, in elevator shafts...
Сторінка 12 - Ground wires for lightning arresters should not bo attached to gas pipes within the buildings. It is often desirable to introduce a choke coil in circuit between the arresters and the dynamo. In no case should the ground wire from a lightning arrester be put into iron pipes, as these would tend to impede the discharge.
Сторінка 192 - With arms held straight, swing forward slowly, so that the weight of your body is gradually brought to bear upon the patient. The shoulder should be directly over the heel of the hand at the end of the forward swing. Do not bend your elbows. This operation should take about two seconds.
Сторінка 27 - Every motor should be provided with a name-plate, giving the maker's name, the capacity in volts and amperes, and the normal speed in revolutions per minute.