Training Course: Interlocks & Lockout Tagout (LOTO)

Machine Safety Essentials: LOTO, Electrical Interlocks & Trapped-Key Systems. Learn what ISO standards and Thai regulations require, how to read PL & SIL, and how to design and upgrade a safety solution for your own machines.

What you will gain

1. Know the rules: Which ISO standards and Thai regulations apply to your machines.
2. Pick the right protection: When LOTO is enough, and when you need an interlock or trapped key.
3. Speak PL & SIL: Read and specify Performance Level and SIL requirements.
4. Design it yourself: A step-by-step method to design or upgrade your own solution
   

• Introduction
  • Introduce Interlocks
  • Introduce LOTO
  • Why machine accidents still happen during maintenance, cleaning and setup
• Standards & Thai regulations.
  • Risk assessment and the standards behind safe machinery
  • Thai Occupational Safety, Health and Environment Act B.E. 2554 and related Ministerial Regulations on machinery and electrical work
  • What auditors and inspectors look for
• LOTO vs mechanical interlocks
  • How LOTO works, and where it fails: human error, skipped steps, shift changes
  • Electrical interlocks vs trapped-key interlocks
  • When to use each, and how to combine them
• Safety performance: PL & SIL
  • ISO 13849-1 Performance Level (PLa–PLe), categories, MTTFd, DC
  • IEC 62061 Safety Integrity Level (SIL)
  • Finding the required PL (PLr) from your risk assessment
• How to upgrade your safety level
  • Gap analysis of existing machines
  • Retrofit path: LOTO only → interlock → trapped key / safety controller
  • Before-and-after case examples
• Workshop: design it yoursel
  • Identify the hazard → set PLr → choose the device → define the key sequence → validate
  • Group exercise on a real machine scenario

Who should attend: Highly recommended for

• Maintenance engineers
• Production engineers
• Safety officers
• Machine builders / OEMs
• Project & plant managers