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(a) Systems not exceeding 50 volts DC. Insulated open conductors on insulators or bare busbars shall be permitted for the supply of electrolytic installations not exceeding 50 volts DC.
(b) Systems exceeding 50 volts DC.
(1) Insulated open conductors on insulators or bare busbars shall be permitted for the supply of electrolytic installations exceeding 50 volts DC, when guarded as required in Section 2340.17.
EXCEPTION: Unguarded bare conductors or busbars shall be permitted at the tanks.
(2) When access to the process while energized is necessary, the entrance door guarding the electrolytic process shall be electrically interlocked so that access by employees will be prevented when the voltage exceeds 50 volts DC.
(Title 24, Part 3, Section 3-669-6.)
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.
1. Editorial correction filed 11-2-83 (Register 83, No. 45).
2. Renumbering of former Section 2580.2 to Section 2580.6 filed 8-27-86; effective thirtieth day thereafter (Register 86, No. 37).