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 that those performing the lockout/tagout (LOTO) review documentation (including up-to-date drawings and diagrams) to ensure that no electrical circuit interlock operation can result ...

Electrical hazards can strike without warning—whether from damaged wiring, overloaded circuits, wet environments, or improper ...

Racking in or out a power circuit breaker is simple, right? Although this task sounds pretty straightforward in theory, that’s not always the case. In fact, during years of field work related to ...

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 ...

The answer is actually quite simple, but let me first explain why that locking device is there. Section 422.30 of the National Electric Code (NEC) requires a disconnecting means for all appliances.