Safety Standard of Machinery, Equipment and Tools Article 25

The electrical systems of the press machine shall meet the following provisions:1. Indicators or other equivalent functional devices are provided to show operating status.2. Mounting zones for relays, transistors, capacitors, resistors, other electrical parts, control panel, the operation panel or the main body of the press machine have vibration prevention capacity.3. The electrical circuit for the main motor driving has the function that the main motor cannot be restarted after the end of a power outage unless restart is activated. The above-mentioned requirements may not apply if the machinery is constructed to prevent a body part entering a hazard zone.4. The electrical circuit for control or operation has the function to prevent unexpected action by the slider in the case of failures by relays, limit switches or other electrical parts, voltage drops or power outage. The above-mentioned requirements may not apply if the machinery is constructed to prevent a body part entering a hazard zone.5. The operating voltage for the electrical circuit is less than 160 volts.6. External wires shall meet the national standard CNS 6556 "600V PVC insulated and coated light weight cables" or others having equivalent or more insulation, oil-resistance, strength and durability.7. Relays, limit switches or other major electrical parts in electrical circuits for controlling or operating shall have sufficient strength and durability.