GT Engineering Academy

GT Engineering Academy
Academy / Advanced Training on EN 60204-1

Advanced Training on EN 60204-1

Industrial Control Panels according to the Machinery Directive

Training Objectives

The training objective is to be able to design and engineer an industrial control panel according to the European Standard EN 60204-1. We will also touch on other important standards like IEC 60364-4-41, IEC 60364-4-43, IEC 60364-5-52, IEC 60364-5-53. Since October 2021, the 2006 edition of EN 60204-1 is not anymore harmonised and the new edition has become compulsory. We will also touch on the new editions of IEC 61439-1 and IEC 61439-2 (2020). Despite adhering to the language of the standard, the training is practical, with several examples.

DURATION: 32 hours


MODULE 1 (8 hours)

  • Fixed installations vs Electrical Equipment of Machinery
  • Main Reference Standards
  • CE Marking of Electrical Installation
  • General prescriptions
  • Cable shielding
  • EMC and Annex H
  • Harmonic currents
  • Main Disconnect
  • Grounding Cable
  • Unexpected start up
  • Use of an unfused disconnect as a General Disconnector
  • How to distribute power inside the control panel
  • Protection against electric shock
  • Interface Parameters

MODULE 2 (8 hours) Overcurrents

  • The Circuit Breaker protections
  • Miniature CB
  • MCCB and ACB
  • Residual Current Devices and the G Curve
  • The Fuse link
  • Overload Protection
  • The Short Circuit
  • The Interrupting Rating
  • Selectivity
  • The SCCR
  • Energy Limiting properties
  • Selectivity under short circuit conditions
  • The I2t concept and why it is important
  • Tap Conductors
  • How to properly size a contactor

MODULE 3 (8 hours) Protection against electric shock

  • Basic Protection
  • Fault protection in TN Systems
  • The concept of Exposed Conductive Part
  • The concept of Extraneous Conductive Part
  • The Fault Loop
  • TN System (solidly grounded Y)
  • Amendment IEC 60204-1 - September 2021 
  • Residual Current Device
  • RCD and Variable Speed Drives
  • The G curve of MCCB and ACB
  • The high sensitivity RCD
  • TT systems
  • TN Systems
  • Electrical insulation
  • Direct Current and its safety
  • Equipotentiality between Exposed and Extraneous Conductive Parts
  • How to solve the issue of the Extraneous Conductive parts
  • TN system in Machinery
  • Class II Cables
  • Double insulation according to IEC 60364-4-41
  • IEC 60204-1: what shall be bonded
  • SELV, PEVL and FELV circuits

MODULO 4 (8 ore) Ampacity and verifications

  • Free air cable ampacity according to IEC 60364-5-52
  • Cable Ampacity according to IEC 60204-1 and IEC 61439-1
  • Cable Ampacity: GT Engineering recommendation
  • Protection against control circuit malfunctioning
  • Switching power supplies
  • The use of PELV circuits in Machinery
  • Operator interface
  • Cabling techniques
  • The nameplate
  • Nominal vs maximum current
  • Continuity test
  • Earth Leakages
  • Protection against indirect Contacts in TN Systems
  • Fault protection in case of VSDs
  • Fault Protection in TT Systems
  • Dielectric Test
  • Insulation Test
  • Residual voltage test

The Teacher

GT Engineering is a member of the following Technical Committees

  • Member of the Technical Committee IEC/TC44 MT 60204-1 for IEC 60204-1: Safety of machinery - Electrical equipment of machines.
  • Member of the Technical Committee IEC/TC64 MT9 for  IEC 60364-4-41: Low-voltage electrical installations - Protection against electric shock
  • Member of the UL Standard Technical Panel (STP) for UL 508A
  • Principal (Special Expert) on the NFPA 79 Technical Committee.
  • Member of WG 4-006 of the CE Code (Canadian Electrical Code C22.1)