What is this standard about?
It sets out requirements and recommendations designed to make machines with electrical equipment safer and easier to use and operate.
Who is this standard for?
- Machine manufacturers
- Electrical component manufacturers
- Panel builders
- Electrical machine users and maintainers
Electrical machines include: metalworking machinery, food machinery, plastics and rubber machinery, printing, paper and board machinery, wood machinery, assembly machines, compressors, material handling machines, packaging machinery, textile machines, laundry machines, leather/imitation leather goods and footwear machinery, construction and building materials machinery, hoisting machinery, transportable machinery, machinery for transportation of persons, mobile machinery, leisure machinery, power-operated doors, machines for hot metal processing, tanning machinery, pumps, mining and quarrying machines and agriculture and forestry machines.
Why should you use this standard?
This is the main European standard for the electrical safety of machinery. It supplies requirements and recommendations that promote:
- The safety of people and property
- Consistency of control response
- Ease of operation and maintenance
This standard applies to electrical, electronic and programmable electronic equipment and systems within non-portable machines designed to operate in conjunction with other machinery.
It applies to electrical equipment or parts of electrical equipment that operate with nominal supply voltages not exceeding 1000 V for alternating current (a.c.) and not exceeding 1500 V for direct current (d.c.), and with nominal supply frequencies not exceeding 200 Hz.
It doesn’t cover all the requirements (for example guarding, interlocking, or control) that are needed or required by other standards or regulations to protect people from hazards other than electrical hazards. Each type of machine has unique requirements to be accommodated to provide adequate safety.
It requires electrical risks to be assessed as part of the machine’s overall risk assessment to:
- Identify the need for risk reduction
- Determine adequate risk reductions
- Determine the necessary protectives measure for people exposed to hazard, while still maintaining the machine’s performance
Safety measures are a combination of the measures incorporated at the design stage and those that need to be implemented by users. The design and development process should identify hazards and the risks arising from them.
The standard requires that where hazards can’t be removed and/or risks can’t be sufficiently reduced by inherently safe design measures, protective measures (for example safeguarding) should be provided to reduce the risk. Additional means (for example, awareness) should be provided where further risk reduction is necessary. In addition, working procedures that reduce risk can be necessary.
What’s changed since the last update?
The main changes are:
a) Added requirements to address applications involving power drive systems (PDS)
b) Revised electromagnetic compatibility (EMC) requirements
c) Clarified overcurrent protection requirements
d) Added requirements for determining the short circuit current rating of the electrical equipment
e) Revised protective bonding requirements and terminology
f) Reorganization and revision to Clause 9, including requirements covering safe torque off of PDS, emergency stop, and control circuit protection
g) Revised symbols for actuators of control devices
h) Revised technical documentation requirements
i) General updating to current special national conditions, normative standards, and bibliographical references