IEC 61010-1 Ed 2: "Automatic Disconnection of the supply"

occounty

Involved In Discussions
Hello,

I have question on 61010-1, Ed2, clause 6.5.4 which states as below:

"6.5.4 Automatic disconnection of the supply
If automatic disconnection of the supply is used for protection in SINGLE FAULT CONDITION, the automatic disconnection device shall meet all the following requirements.
a) It shall be supplied with the equipment or the installation instruction shall specify the device to be fitted as part of the installation.
b) It shall be RATED to disconnect the load within the time specified in Figure 1.
c) It shall be RATED for the maximum RATED load conditions of the equipment.

Conformity is checked by inspection of the device specification and, if applicable, installation instructions. In case of doubt, the device is tested to check that it disconnects the supply within the required time. "


Question: Standard specifies "automatic disconnection device", is it referring to fuse?
 

CharlieUK

Quite Involved in Discussions
No, a fuse wouldn't work fast enough to meet Figure 2.

I've never used this clause, but would suspect an RCD would do the trick.
Compliance would need to be demonstrated in application though.

If you go back up to 6.5.1, most products would use options (a), (b) or (e)

Charlie
 
W

walkers150g

I guess they would also test for hazardous voltages on accessible parts.
 
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