To ensure compliance under 1910.147, hazardous energy sources, such as electrical, pneumatic, hydraulic, chemical and thermal energy, need to be properly isolated to a zero-energy state through a ...

NFPA 70E requires each lockout/tagout device to “be unique and readily identifiable as a lockout/tagout device” [120.2(F)]. How can a lockout/tagout device be “unique”? In this context, the intention ...

Regulations governing electricity are in Title 8, California Code of Regulations, Section 2300 (low voltage, 600 volts or less) and Section 2700 (high voltage, more than 600 volts). Only qualified ...

It is a common practice to lockout and/or tagout control devices. In a nuclear power plant’s control room with its many analog controls, you might (for example) see red covers over specific switches.