What is BS EN IEC 60204-11-Safety of machinery about?
BS EN IEC 60204-11 is the 11th part of an international multi-series standard that focuses on provisions of safety for electrical machinery. BS EN IEC 60204-11 applies to electrical and electronic equipment and systems to machines, including a group of machines working together in a coordinated manner, which operate at nominal voltages above 1 000 V AC or 1 500 V DC and not exceeding 36 kV AC or DC with nominal frequencies not exceeding 60 Hz.
BS EN IEC 60204-11 also covers the LV equipment and HV equipment forming an integral part of the equipment operating at high voltage. The requirements in this document primarily cover the parts operating at high voltage except where explicitly stated otherwise.
Note: BS EN IEC 60204-11 does not apply to independent high-voltage power supply installations for which separate IEC standards exist.
Who is 60204-11-Safety of machinery for?
BS EN IEC 60204-11 on electrical equipment safety precautions is applicable to:
- Manufacturers of HV electrical equipment
- Designers of HV electrical equipment
- Electrical engineers
- Power system engineers
- Professionals who install the electrical equipment
Why should you use BS EN IEC 60204-11-Safety of machinery?
The design and development process of the high voltage electrical equipment should be able to identify hazards and the risks arising from them. Where the hazards cannot be removed and/or the risks cannot be sufficiently reduced by inherently safe design measures, protective measures (for example safeguarding) should be provided to reduce the risk.
BS EN IEC 60204-11 provides you with detailed information about risk assessment as well as requirements and recommendations relating to the high voltage electrical equipment (HV equipment) of machines together with its associated low voltage electrical equipment (LV equipment). BS EN IEC 60204-11 informs the users about the safety of persons and property, consistency of control response, maintainability, reliability, etc., which helps them to determine and implement the necessary protective measures. It also covers the following points concerned with the safety of electrical equipment and personnel operating them:
- Supply disconnecting device
- Protection against electrical shock
- Protection of high voltage equipment
- Control circuits and control functions
- Protective bonding circuit
It provides you with the safety measures that are a combination of the measures incorporated at the design stage which could be implemented by the user in order to reduce the risks.
What’s changed since the last update?
BS EN IEC 60204-11:2019 supersedes BS EN 60204-11:2000, which is withdrawn. BS EN IEC 60204-11:2019 includes a technical change with respect to the previous edition as:
- Aspects of risk assessment, which are mirrored from ISO 12100, equipotential bonding, and earthing
- EMC and power quality, HV switchgear and controlgear
- Creepage distances for conductors and slip-ring assemblies
- A list of machinery using HV equipment, in Annex A
