Talk:Ingress protection rating

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[edit] Third digit

Can someone please provide a reference for the section on the third digit? This is clearly not in the IEC or DIN standard. Markus Kuhn 21:19, 13 August 2005 (UTC)

Moved the third-digit section over here, until someone can back it with a reference. Markus Kuhn 10:12, 28 August 2005 (UTC)

Not defined in IEC 60529, but (presumably?) covered in some national variants of the standard, is an optional third digit that can be added to indicate how well the enclosure is protected against mechanical impact damage. The table below lists both the impact energy in joules, as well as the mass of a test opject that will provide this impact energy if dropped from the given height above the impact surface.

Level	Impact energy	Equivalent drop mass and height
0	—	—
1	0.225 J	150 g dropped from 15 cm
2	0.375 J	250 g dropped from 15 cm
3	0.5 J	250 g dropped from 20 cm
5	2 J	500 g dropped from 40 cm
7	6 J	1.5 kg dropped from 40 cm
9	20.0 J	5.0 kg dropped from 40 cm

There is a website [1] that claims that "Australian Standards AS1939 and EN60529" define a three-digit IP code. I understand that the European Standard EN 60529 and the international standard IEC 60529 both have only two characteristic digits. According to [2] the Australian standard is practically identical to the IEC and European versions. So I'm still waiting for a convincing source for where the third digit was introduced and is used. Markus Kuhn 10:16, 8 November 2005 (UTC)

[edit] Are you sure

i'm 99% sure that the requirement for normal wiring accessories here in the uk is IP 4X and sockets have shutters to achive this. what about other places? Plugwash 20:12, 20 March 2006 (UTC)

[edit] Merge

MrCyber 15:47, 5 December 2006 (UTC) I agree that this page should be merged with the proposed page.