The TS EN 60204-1 standard covers the applications of electrical, electronic, and programmable electronic equipment and systems for machines (including groups of machines working together in a coordinated manner) that cannot be moved by hand while in operation.

The application of the TS EN 60204-1 standard to electrical equipment used in a wide variety of machines and groups of machines working together in a coordinated manner is foreseen.

Combined risks associated with hazards related to electrical equipment should be considered as part of the overall risk assessment rules of the machine. This should specify appropriate risk reduction and necessary protective measures for individuals who may be exposed to these hazards while maintaining an acceptable level of performance for the machine and equipment.

Hazardous situations may arise from, but are not limited to:

• Failures or faults in electrical equipment due to the risk of electric shock or the possibility of fire caused by electricity,

• Failures or faults in control circuits (or components and devices working with these circuits) due to faulty machine operation,

• Failures or faults in power circuits caused by faulty machine operation, along with interruptions or malfunctions in power supplies,

• Loss of continuity in circuits working with sliding or rotating contacts, resulting in failure of safety functions,

• Electrical disturbances such as electromagnetic or electrostatic disturbances coming from outside or generated within electrical equipment due to faulty machine operation,

• Discharge of stored energy (electrical or mechanical) as a result of events such as electric shock or unexpected movements that can lead to injury,

• Surface temperatures that may cause injury.

Safety measures are a combination of measures foreseen during the design phase and those required to be implemented by the user.

The design and development process should identify the hazards and risks arising from these. If the hazards cannot be eliminated and/or the risks cannot be sufficiently reduced by inherently safe design measures, protective measures (e.g., guards) should be provided to reduce the risk. If further risk reduction is necessary, additional means (e.g., awareness measures) should be provided. Additionally, working procedures that can reduce the risk may be required.

The tests conducted under the TS EN 60204-1 standard are as follows:

a) Verification of the conformity of the electrical equipment with the technical documentation,

b) If protection against indirect contact is provided by automatic disconnection, the conditions for protection by automatic disconnection must be verified,

c) Insulation resistance test,

d) Voltage test,

e) Protection against residual voltages,

f) Functional tests.