Difference Between Normal and Abnormal LOTO Situations
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- Issue Time
- Jun 3,2026

The differences are reflected in four dimensions: work attribute, energy isolation condition, operation procedure and risk control, as detailed below:
1. Work attribute: Normal LOTO is routine, planned and regular daily maintenance work; Abnormal LOTO is unplanned, emergency, temporary or complex non-routine work.
2. Energy isolation condition: Normal LOTO involves a single, independent, lockable energy source with simple and clear isolation points; Abnormal LOTO involves multiple coupled energy sources, non-lockable isolation devices or hidden residual energy risks.
3. Operation specification: Normal LOTO follows fixed SOPs, with independent operation by authorized employees and conventional process verification; Abnormal LOTO requires special safety approval, cross-post coordination, enhanced zero-energy verification and on-site supervision, and allows tagout-only operation only when lockout is physically impossible (with official documentation required).
4. Risk level: Normal LOTO has controllable, predictable low risks with standardized risk prevention measures; Abnormal LOTO has uncertain, complex high risks, prone to residual energy release and accidental equipment startup hazards.
Lita Lock, a China based manufacturer, since 2017, active in manufacturing safety padlocks, electrical lockout, valve lockout, lockout station, tags and other lockout & tagout for global partners.
To help customers compliance with OSHA Standard 29 CFR 1910.147, Lita Lock does not only offer design, production and final assembly, but also a complete lockout & tagout solution for various industries.
Lita Lock pursues the competitiveness on creative, quality control, technology and sustainable development. As the founder of Lita Lock, Iris Chen says: “Many things have changed, but one thing that has not—our original intention to start businesses: keeping workers safe.” Together, we make work environments safer.
Sales Manager: Iris Chen
Email: iris@litalock.com
Whatsapp: + 86 13165872593
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