Agents' and Inspectators Pocket-book of Fire ProtectionSpectator Company, 1902 - 218 стор. |
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Результати 1-5 із 34
Сторінка 9
... liable to burn . A “ fireproof " or " superior " con- struction is to a great extent thought to imply that the contents will not burn ; this idea is as silly as it is impossible . The idea in this class of construction , termed ...
... liable to burn . A “ fireproof " or " superior " con- struction is to a great extent thought to imply that the contents will not burn ; this idea is as silly as it is impossible . The idea in this class of construction , termed ...
Сторінка 16
... liable to become expensive through repairs . Tin and copper make the best sheet metal roofs , but they should be well laid and soldered . Sheet iron does not make a lasting roof , as it is easily affected by the weather and soon goes ...
... liable to become expensive through repairs . Tin and copper make the best sheet metal roofs , but they should be well laid and soldered . Sheet iron does not make a lasting roof , as it is easily affected by the weather and soon goes ...
Сторінка 23
... liable to warp and open up at the seams . ) A door must be provided at each flight , preferably at the bottom ; the doors to be not less than 11⁄2 inches thick and unless standard iron or tin - clad , to be constructed of two ...
... liable to warp and open up at the seams . ) A door must be provided at each flight , preferably at the bottom ; the doors to be not less than 11⁄2 inches thick and unless standard iron or tin - clad , to be constructed of two ...
Сторінка 31
... liable to fill with dust and dirt . Wire netting is more or less ob- jectionable on account of its liability to clog with dust and chaff . 4. The air spaces should communicate freely with the outer air by window and ventilator openings ...
... liable to fill with dust and dirt . Wire netting is more or less ob- jectionable on account of its liability to clog with dust and chaff . 4. The air spaces should communicate freely with the outer air by window and ventilator openings ...
Сторінка 44
... liable to severe . They are not recommended . STANDARD IRON SHUTTERS ( National Board of Fi Underwriters ) .— Must be made of sheet iron or steel , No. 14 gauge and lap the wall at least 11⁄2 inches all around ; if not prac- tical to ...
... liable to severe . They are not recommended . STANDARD IRON SHUTTERS ( National Board of Fi Underwriters ) .— Must be made of sheet iron or steel , No. 14 gauge and lap the wall at least 11⁄2 inches all around ; if not prac- tical to ...
Загальні терміни та фрази
amperes apparatus appliances approved arc lamps arranged asbestos attached automatic sprinkler benzine Board of Fire boiler bolts brick building burners capacity ceiling cement check valve circuit closed coating conductors connections construction cornice covered cut-out cylinders diameter discharge dryer dust dynamo electric elevator exposed factories fastened feet fire doors fire pump Fire Underwriters fireproof fixture floor fuse fusible link gallons gasolene gate valve glass grain grain dryers hazards heat hose hydrant inches inflammable materials inside installed insulating joints joists lamps laths leaking least less liable light located machines metal mills moisture naphtha National Board non-combustible paint partitions placed possible pounds pressure prevent protected rheostat riser riveted roof securely shaft shutters side solder steam pipes stoves suction pipe supply supported switch tank terra cotta tubes ventilated vertical volts wall frame wires wood wooden woodwork wrought iron
Популярні уривки
Сторінка 79 - The lower limit is specified for rubber-covered wires to prevent gradual deterioration of the high insulations by the heat of the wires, but not from fear of igniting the insulation. The question of drop is not taken into consideration in the above tables.
Сторінка 102 - They must not come nearer than two inches to any electric light or power wire in the building, unless separated therefrom by some continuous and firmly fixed non-conductor creating a permanent separation ; this non-conductor to be in addition to the regular insulation on the wire.
Сторінка 80 - VOLTS. Any circuit attached to any machine or combination of machines which develops a difference of potential, between any two wires, of over...
Сторінка 81 - Rigid supporting requires under ordinary conditions, where wiring along flat surfaces, supports at least every four and one-half feet. If the wires are liable to be disturbed, the distance between supports should be shortened. In buildings of mill construction, mains of No.
Сторінка 103 - Insulation Resistance — The wiring in any building must test free from grounds; ie, the complete installation must have an insulation between conductors and between all conductors and the ground (not including attachments, sockets, receptacles, etc.) of not less than the following: Up to 5 amperes 4,000,000 ohms...
Сторінка 83 - ... a highpotential circuit and as coming under that class, unless an approved transforming device is used which cuts the difference of potential down to 550 volts or less.
Сторінка 82 - ... except that if the difference of potential between the wires is not over 300 volts, and if the wires are not exposed to moisture, they may be fished...
Сторінка 106 - Bushings must be long enough to bush the entire length of the hole in one continuous piece, or else the hole must first be bushed by a continuous waterproof tube. This tube may be a conductor, such as iron pipe, but in that case an insulating bushing...
Сторінка 88 - Must be placed on all service wires, either overhead or underground, as near as possible to the point where they enter the building and inside the walls, and arranged to cut off the entire current from the building.
Сторінка 91 - Hanger-boards must be so constructed that all wires and current-carrying devices thereon shall be exposed to view, and thoroughly insulated by being mounted on a non-combustible, non-absorptive insulating substance. All switches attached to the same must be so constructed that they shall be automatic in their action, cutting off both poles to the lamp, not stopping between points when started, and preventing an arc between points under all circumstances.