. The Street railway journal . nsiderablyin excess of 10,000 volts. The length of gaprequired to deal with an arc at this voltage- is only 9 ins. The other engravings accompanying thisarticle show other designs of this type offuse. Thus, Fig. 2 illustrates a of fuse, which consists oftwo gun-metal castings separated by al)lock of insulating material and handle,form the contact plates, sparklet holders andThe si>arklets, which are held in position by theinsulated screw caps, project through the insulating block soas to be in the path of the arc, which, by piercing th
. The Street railway journal . nsiderablyin excess of 10,000 volts. The length of gaprequired to deal with an arc at this voltage- is only 9 ins. The other engravings accompanying thisarticle show other designs of this type offuse. Thus, Fig. 2 illustrates a of fuse, which consists oftwo gun-metal castings separated by al)lock of insulating material and handle,form the contact plates, sparklet holders andThe si>arklets, which are held in position by theinsulated screw caps, project through the insulating block soas to be in the path of the arc, which, by piercing the ends of thebottles, liberates the compressed gas. Fig. 3 illustrates a car orhouse fuse block, and this type is made for currents of 150 amps,and pressures up to 500 volts. The fuse is carried on a porce-lain or other similar insulating material box with a partitiondown the middle. The fuse is located in one-half of the box,and the other half contains the two si)arklct> which ])roject ■t The castingsfuse
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
