A
antonoia
Hi All!!
I am working on reviewing the design of a class I device that has a tubular heating element powered with live and neutral trough a relais, the scope is to verify if complies with 60601-1. I found the clause above specified that states: "equipment that incorporates tubular heating elements shall have protection against overheating in both leads where a conductive connection to earth could result in overheating".
I did not fully understand the reason of this requiremnent, from what it is written I believe that if not both leads are disconnected currents can still pass trough the live conductor to earth trough the tubular. If this is the reason why is this requirement of disconnecting both leads applied only to tubular heating element and not also to some other components? Hope someone can help to understand and to verify if this will be applicable also in my case. Many Thanks!!
I am working on reviewing the design of a class I device that has a tubular heating element powered with live and neutral trough a relais, the scope is to verify if complies with 60601-1. I found the clause above specified that states: "equipment that incorporates tubular heating elements shall have protection against overheating in both leads where a conductive connection to earth could result in overheating".
I did not fully understand the reason of this requiremnent, from what it is written I believe that if not both leads are disconnected currents can still pass trough the live conductor to earth trough the tubular. If this is the reason why is this requirement of disconnecting both leads applied only to tubular heating element and not also to some other components? Hope someone can help to understand and to verify if this will be applicable also in my case. Many Thanks!!