Anti-tracking specification

If the power cord plug remains plugged into the outlet, dust or other foreign matter may accumulate in the space between the plug and outlet and, depending on the humidity level, a small current flow between the blades of the plug. It has been reported that, if this condition continues, a short circuit will ultimately occur, causing a large current to flow and potentially resulting in fire. This is known as the tracking phenomenon.

The revised technical standard of the Electrical Appliances and Materials Safety Act made it obligatory for general attachment plugs manufactured on and after September 18, 2015 to satisfy the anti-tracking criteria.
All of our applicable attachment plugs meet the anti-tracking performance level required by the technical standard of the Electrical Appliances and Materials Safety Act.

* Anti-tracking plugs are those that exhibit 400 or greater as the value of PTI (CTI) set forth in JIS C 2134 and that pass the test specified in JIS C 60905-2-11 or JIS C 60905-2-12 when that test is conducted at 750 ̊C.

Many assembly manufacturers take precautionary measures such as stating the need for periodical maintenance and inspection of the plug in the product manual. In addition, we offer power cord plugs featuring enhanced anti-tracking performance for not only power cords for the Japanese market but also those for the North American markets in case higher anti-tracking performance levels are required for some models and applications.

Power cord plugs are available in two types.
1 Plug with the root of each blade covered by a sleeve
2 Plug with blades whose holding body is made of thermosetting resin

When using an extension cord set, consult with us.

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