Agents' and Inspectators Pocket-book of Fire ProtectionSpectator Company, 1902 - 218 стор. |
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Результати 1-5 із 57
Сторінка 6
... Pressure Systems - Oil Lamps - Lan- terns - Notes . CHAPTER VI . ELECTRIC LIGHT AND POWER INSTALLATION Generators and Dynamos - Storage and Primary Bat- teries - Switchboard - Switchboard Apparatus - Light- ning Arresters - Motors ...
... Pressure Systems - Oil Lamps - Lan- terns - Notes . CHAPTER VI . ELECTRIC LIGHT AND POWER INSTALLATION Generators and Dynamos - Storage and Primary Bat- teries - Switchboard - Switchboard Apparatus - Light- ning Arresters - Motors ...
Сторінка 29
... pressures necessary to accomplish the desired results . The higher air pressures are accompanied by the higher fan speeds , increasing the probability of hot bearings with their attendant dangers . Small air passages to the grain may ...
... pressures necessary to accomplish the desired results . The higher air pressures are accompanied by the higher fan speeds , increasing the probability of hot bearings with their attendant dangers . Small air passages to the grain may ...
Сторінка 30
... pressure of live steam . The accumulation of dirt and the careless disposition of oily waste in the enclosure containing the coils have been the cause of fires in apparatus of this nature in the past . 4. The drying out and preparation ...
... pressure of live steam . The accumulation of dirt and the careless disposition of oily waste in the enclosure containing the coils have been the cause of fires in apparatus of this nature in the past . 4. The drying out and preparation ...
Сторінка 49
... Pressure Systems . - The burner must properly generate under any condition of working pressure or regulation . All parts must be accessible for purposes of cleaning or repairs . Cleaning or needle valves must have steel stems with a ...
... Pressure Systems . - The burner must properly generate under any condition of working pressure or regulation . All parts must be accessible for purposes of cleaning or repairs . Cleaning or needle valves must have steel stems with a ...
Сторінка 52
... pressure of steam is used . Keep them clear of all combustible materials , free from lint , dust , rubbish ; do not allow stock to be put against them . If it is a rule to pile stock so that it is apt to come in contact with them ...
... pressure of steam is used . Keep them clear of all combustible materials , free from lint , dust , rubbish ; do not allow stock to be put against them . If it is a rule to pile stock so that it is apt to come in contact with them ...
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.