IP Code
The degree of protection indicates the suitability of electrical equipment (for example, appliances, lighting fixtures and installation material) for different environmental conditions, in addition to protecting people against potential dangers in their use.
- 3.1 nomenclature
Basics
In many applications, electrical and electronic equipment must operate reliably under severe environmental conditions over many years. In addition to the permissible temperature range, the corrosive stress, here under the resistance to aggressive media in the industry such as humidity, water, fumes, acids, alkalis, oil or fuel is understood as an insert restrictive, and is also necessary ingress of foreign bodies and dust, as well as contamination with bacteria and viruses ( in medical ), or the mechanical stress caused by shock for reliable operation and safe use can be prevented.
International Protection code
With regard to their suitability for different ambient conditions protected systems into appropriate types of protection, so-called IP codes are divided. IP stands for International Protection. In the English -speaking world the acronym is sometimes translated as Ingress Protection (protection against penetration ).
The classified with IP protection is to be distinguished from the electrical protection class. While the IP protection classes define the degree of protection of the housing against contact, foreign bodies and water, determine the electrical protection class action against dangerous contact voltages on operational non- live parts of electrical equipment.
Standardization
For the coding of IP codes, there are several German and international standards.
- DIN EN 60529; VDE 0470-1:2000-09 protection provided by enclosures (IP code ) (IEC 60529:1989 A1: 1999); German version EN 60529:1991 A1: 2000, formerly VDE 0470-1
- DIN 40 050-9:1993-05 with the title Road vehicles; IP degrees of protection; Protection against foreign objects, water and contact; Electrical equipment, Publication date: 1993-05. As the title indicates, this standard is intended especially for road vehicles.
- ISO 20653:2006-08 Road vehicles - Degrees of protection ( IP-Code) - Protection of electrical equipment against foreign objects, water and access describes the current state of road vehicles with extensions to the encoding of protection to former DIN standards.
All standards are valid, but differ in the change booth and in detail. When specifying IP codes, it is necessary for a unique coding system to indicate the reference standard.
Since the meanings of the degrees of protection within the respective standards compared to previous editions have also changed, it is also necessary to specify always number and publication date of the standard, to produce a unique reference.
With ISO 20653 dated 15 August 2006, was withdrawn DIN 40 050 Part 9 reproduced almost verbatim. Only in the dust composition ( test dust ) to distinguish the two provisions.
Nomenclature
The term of protection is always present letters IP are (generally no intervening space) attached two digits. These indicate what scope of protection contact and foreign bodies ( first digit ) and moisture or water provides a housing with respect to ( second digit ).
If one of the two codes can be omitted or should, it is replaced by the letter X ( for example, " IPX1 "). If necessary, nor a defined letters for more precise description of the protection can be appended to the digit combination. So looks DIN 9 the letter K for the identification of the equipment of road vehicles for individual indicators before 40 050 part.
First digit of IP codes
More detailed explanations can be found in the relevant standards.
Note: During DIN EN 60529 IP5X and IP6X defined, these two classes of protection in hot DIN 40 050 Part 9 IP5KX and IP6KX.
Second digit of IP codes
More detailed explanations can be found in the relevant standards.
Note: DIN EN 60529 defines neither IPX9 still IPX9K. DIN 40 050 part 9 is also not defined IPX9, but only IPX9K.
By the degree of protection IPX6 (with DIN EN 60529 ) or IPX6K (with DIN 40 050 Part 9) are the underlying degrees of protection included. At the higher protection classes not this applies automatically for the harbor Grade 7, 8 and 9K. If an inclusion of a lower degree of protection is required, this is indicated by a double name, for example IPX6K/IPX9K.
IK code
To classify the degree of protection in terms of mechanical force of the IK code or impact score will be used. This according to DIN EN 50102 - VDE 0470 Part 100 and DIN EN 62262 specified encoding replaces the optional third digit earlier occasionally used the IP code. However, both methods of classification are not clearly transferable.
Nomenclature
The protection class is specified by the letters IK, directly followed by the appropriate two-digit code.
Typical types of protection
In industrial plants, typically IP54 is installed in control cabinets IP20. In the automotive sector is the installation in the dry compartment of the vehicle up to IP55 useful (possibly created with specifications for the mounting position so that an " umbrella " principle). In applications in Construction, civil protection, for military technology, open-access mounting locations and in the engine compartment of road vehicles is IP6K6K, IP6K7, IP6K8 and IP6K9K 40 050 part 9 is used to DIN. Some also include combinations of the types of protection in use.
Often (for example, controls on public transport or lifts ) must also be considered vandalism, then IP5X attached, even if the operating circuits operate with low voltage and no increased risk of pollution.
A complete protection against contact from IP5X given, since this degree of protection from inadvertent intrusion is prevented.