Current through Register Vol. 54, No. 45, November 9, 2024
Section 39.157 - Disconnecting of fusible cut-outs before handlingFusible cut-outs in circuits operating at over 150 volts to ground shall be arranged in any one of the following ways:
(1) Ungrounded current-carrying parts are not touched by persons refusing the cut-outs until the fuses have been disconnected from sources of electrical energy.(2) The cut-out may be disconnected by a suitable switch in series.(3) The fuse may be conveniently handled by means of insulating handles or portable appliances provided for the purpose.(4) Fusible cut-outs below 150 volts to ground and less than 60 amperes' capacity are exempted from the provisions of this section.