Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 221
t, of course, in any degree justifyover-fusing circuits or tampering with fuses or other safeguards,and insurance inspectors should not tolerate any deviation fromstandard rules for the protection of circuits or fail to demand theuse of only approved protective devices of proper rating for… … Fig. 68. Typical Examples of Doctored Fuses Specifications for fuses require that they shall be rated at a certain percent of the maximum current which they will carry indefinitely, as follows:link fuses 80 per cent and enclosed fuses 90 per cent. The margin thus pro-vided between the rating of the…
Electrical engineering
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