insearchofprat said:
For audio equipment that requires an EGC (Equipment Grounding Conductor) The power cord shall be a 3 wire grounding type.
For audio equipment that is rated Class II the AC power wiring inside the equipment is double insulated. The IEC power inlet does not have an EGC prong. The IEC, power cord, and male plug are two wire only. Ungrounded.
Class II
Class II symbol
A Class II or double insulated electrical appliance is one which has been designed in such a way that it does not require a safety connection to electrical earth (ground).
The basic requirement is that no single failure can result in dangerous voltage becoming exposed so that it might cause an electric shock and that this is achieved without relying on an earthed metal casing. This is usually achieved at least in part by having at least two layers of insulating material between live parts and the user, or by using reinforced insulation.
In Europe, a double insulated appliance must be labelled Class II or double insulated or bear the double insulation symbol (a square inside another square).
Appliance classes - Wikipedia
Now if some fly by night cable manufacturer is building a 3 wire grounding type power cord with the EGC lifted at the female IEC connector he is leaving himself wide open for a lawsuit, or worse, in the event someone gets electrocuted and it is proven his or her death was the cause of the EGC ground defeated power cord.
Reputable cable manufacturers would never conceal a lifted EGC.
.
I’ve noticed that there are choices by different manufacturers for grounded or ungrounded power cords:Save everyone a lot time and post some website examples what you are referring to.
For audio equipment that requires an EGC (Equipment Grounding Conductor) The power cord shall be a 3 wire grounding type.
For audio equipment that is rated Class II the AC power wiring inside the equipment is double insulated. The IEC power inlet does not have an EGC prong. The IEC, power cord, and male plug are two wire only. Ungrounded.
Class II
Class II symbol
A Class II or double insulated electrical appliance is one which has been designed in such a way that it does not require a safety connection to electrical earth (ground).
The basic requirement is that no single failure can result in dangerous voltage becoming exposed so that it might cause an electric shock and that this is achieved without relying on an earthed metal casing. This is usually achieved at least in part by having at least two layers of insulating material between live parts and the user, or by using reinforced insulation.
In Europe, a double insulated appliance must be labelled Class II or double insulated or bear the double insulation symbol (a square inside another square).
Appliance classes - Wikipedia
Now if some fly by night cable manufacturer is building a 3 wire grounding type power cord with the EGC lifted at the female IEC connector he is leaving himself wide open for a lawsuit, or worse, in the event someone gets electrocuted and it is proven his or her death was the cause of the EGC ground defeated power cord.
Reputable cable manufacturers would never conceal a lifted EGC.
.
