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IEC 60601 - Creepage Distance - Relay that acts as a means of physical mechanical protection

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In relation to compliance of creepage distances and air clearance we have the next doubt : the distance requirements apply to the entire secondary circuit, including components that are not considered means of protection or only a compounds categorized like means of protection?

In our design we have a relay that acts as a means of physical mechanical protection, only this component must comply or it is the entire secondary circuit?
 
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