[Electric engineering.] . Fig. 4. Figs. 5 and 6 show burn-outs caused by short circuits incut-outs. The burn-outin Fig. 5 was due to de-fective design, the twosides of the circuit beingbrought so close togetherthat when a fuse meltedthe arc held over and de-stroyed the cut-out. In Fig. 6, the cut-outwas placed horizontally. FlG- 5- When the fuse melted, the metal ran down and established.

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