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GB 4208-2008

GB 4208-2008_English: PDF (GB4208-2008)
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GB 4208-2008English145 Add to Cart 0--10 minutes. Auto-delivered. [GB/T 4208-2008] Degrees of protection provided by enclosure (IP code) [Renamed to GB/T 4208-2008] GB 4208-2008 Obsolete GB 4208-2008
 

BASIC DATA
Standard ID GB 4208-2008 (GB4208-2008)
Description (Translated English) [GB/T 4208-2008] Degrees of protection provided by enclosure (IP code) [Renamed to GB/T 4208-2008]
Sector / Industry National Standard
Classification of Chinese Standard K09
Classification of International Standard 13.260
Word Count Estimation 34,391
Date of Issue 2008-03-25
Date of Implementation 2009-01-01
Older Standard (superseded by this standard) GB 4208-1993
Quoted Standard GB/T 311.2-2002; GB/T 2421-1999; IEC 60050-195-1998; IEC 60050-826-1982; IEC 60068-2-68-1994
Adopted Standard IEC 60529-2001, IDT
Drafting Organization Electrotechnical Machinery Industry Beijing Institute of Economic Research
Administrative Organization National Electrical Safety Standardization Technical Committee
Regulation (derived from) Announcement of Newly Approved National Standards No. 5, 2008 (No. 118 overall)
Proposing organization National Electrical Safety Standardization Technical Committee (SAC/TC 25)
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This Chinese standard applies to the rated voltage not exceeding 72. 05kV, electrical equipment enclosure with protective polarized. Various products referenced enclosure class degree and manner, and the type of housing, the decision left to product standards, the degree of protection against the specific test used shall comply with the requirements of this standard and, if necessary, increase in the relevant product standard supplement requirements. In the relevant product standard as specified details see Appendix B. For specific types of equipment, product standards can specify different requirements, but at least to ensure the same level of safety. This standard is only considered in all respects comply with the relevant product standard shell, under normal conditions of use, shell materials and processes should ensure to achieve the required level of protection. If certain types of test equipment to meet the general requirements and the choice of protection applied to the device type, this standard also applies to the type of equipment, empty shell. For mechanical damage, corrosion, corrosive solvents, mold, insect, solar radiation, freezing, humidity, explosive gases and other environmental conditions external influence or damage to the equipment of the shell and the shell of the protective measures and to prevent hazardous moving parts outside of the housing in contact by the relevant product standard. Not connected with the housing of the separator and set up specifically for the personal safety barrier is not considered part of the enclosure, this standard will not study.

GB 4208-2008
Degrees of protection provided by enclosure (IP code)
ICS 13.260
K09
National Standards of People's Republic of China
GB 4208-2008/IEC 60529.2001
Replacing GB 4208-1993
Shell protection (IP code)
(IEC 60529.2001, IDT)
Published 2008-03-25
2009-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Table of Contents
Introduction Ⅲ
Introduction Ⅳ
And a range of object 1
2 Normative References 1
Terms and definitions 1 3
4 Identification 3
Prevent access to hazardous parts and against solid foreign objects protection rating of 5 indicated by a characteristic numeral 5
6 wherein the second digital to prevent water entering the indicated level of protection 6
Prevent access to hazardous levels of protection member 77 indicated by additional letter
8 8 Supplementary letters
Example 9 IP identification code 8
10 logo 9
General requirements 11 Test 9
Protection of access to hazardous parts 12 first tests indicated a characteristic numeral 10
Test against solid foreign matter into the first characteristic numeral 13 indicated 12
14 wherein the second digital to prevent water entering the test indicated 13
Test access to hazardous protection member 15 indicated by 16 additional letter
Annex A (normative) verify voltage equipment to prevent access to hazardous sample IP code member 22
Content Appendix B (Informative Appendix) can be used as specified in the relevant product standard 27
Reference 28
Hinge means 17 again FIG. 1
FIG 2 test dust test apparatus (dust box) 18
FIG 3 Test vertical drip test device (drip box) 19
FIG 4 wherein the second test numbers 3 and 4, water spray and splash proof tester (pendulum tube) 20
FIG 5 wherein the second test numbers 3 and 4, water spray and splash proof handheld testing device (head) 20
FIG 6 Test anti-spray test apparatus (hose nozzle) 21
Table protection level of access to hazardous parts 1 wherein a first number represented 5
Table against solid foreign objects protection rating of 2 indicated by a numeral 6 wherein
Table 3 preventing water from entering the second level of protection represented by the numeral 7 wherein
Table Protection Level 7 dangerous proximity member 4 indicated by additional letter
Protection class Test conditions shown in Table 5, represented by the characteristic numeral 9
Table 6 prevent access to hazardous parts person touches test with 11
Table 7 Test Method for preventing foreign matter from entering the solid 12
Table 8 Test Waterproof test conditions and main methods 13
Table 9 Press IPX3 IPX4 test conditions and the total water flow q v 15
Table A. IP sample code to verify access to hazardous member 1 to prevent the low voltage apparatus 22
GB 4208-2008/IEC 60529.2001
Foreword
All technical contents of this standard is mandatory.
This is equivalent to using the standard IEC 60529.2001 "shell protection (IP code)" (in English).
This standard and IEC 60529.2001 for editorial differences. the abolition of IEC foreword and introduction, increasing our standard preface and
introduction.
Instead of the standard GB 4208-1993 "shell protection (IP code)"; this standard and major changes in GB 4208-1993
as follows.
a) an increase of introduction;
b) The "range" and "object" together as a chapter;
c) increase the "Normative References" chapter;
d) Certain editorial changes.
This standard is proposed and managed by the National Electrical Safety Standardization Technical Committee (SAC/TC25).
This standard is drafted by. Institute of Electrical Machinery Industry Beijing Economic and Technology.
The unit participated in the drafting of this standard. Institute of Science in mechanical machine Productivity Promotion Center, Shanghai Electrical Apparatus Research Institute (Group) Co.
The company, Shanghai Electric Tool Research Institute, the Guangzhou Daily electrical detection, Beijing breakthrough Electric Co., Ltd., Delixi Group Co., Ltd.
The main drafters. Guo Ting, Fang Xiaoyan, Yu Ji Hui, Liu Gonggui, Liu Jiang, Zeng Yan Hong, Jin Weidong, Zhang Yong.
This standard was first published in 1984 and revised in 1993 for the first time, this is the second revision.
GB 4208-2008/IEC 60529.2001
introduction
This standard describes the degree of protection provided by the grading system the electrical device housing. Although this system is suitable for most types of electrical
Equipment, but for specific types of electrical equipment, it does not necessarily apply to all level of protection. It should recommend the device manufacturer to determine the applicable anti
Protection level, and the components of the applications level.
The application of the grading system described embodiment the housing so as to provide complete protection level and give different levels of Test Method system
one. This will enable test equipment for a wider range of products, it will also reduce the number of required test equipment.
The second edition of IEC 60529 takes into account the experience of the first edition, to clarify the requirements. When in fact, prevent human access to hazardous parts grade
When the level is higher than the first characteristic of the digital representation, the present standard by adding the letters A, B, C, D provide a selectable extended range.
In general, according to the previous version of an IP code label housing, the predetermined level for the same edition.
GB 4208-2008/IEC 60529.2001
Shell protection (IP code)
1 Scope and purpose
This standard applies to the rated voltage of not more than 72.5kV, by classifying protective enclosure for electrical equipment protection.
Purpose of this standard is as follows.
a) a predetermined content enclosure class following electrical equipment.
1) close to the shell body to prevent hazardous parts;
2) preventing a solid foreign matter into the apparatus housing;
3) to prevent water from entering the housing of the device causing harmful effects.
b) identifying the degree of protection.
c) for each required degree of protection.
d) according to the requirements of the standard housing for the verification test.
Various products referenced extent and manner of the enclosure class, and what the shell is made, the decision left to the product standards, protection of specific
Test levels used should comply with the provisions of this standard, if necessary, increase the additional requirements in the relevant product standard. Available in the relevant product standard
Registration rules as specified in Appendix B.
Special type of equipment, product standards may specify different requirements, but at least to ensure the same level of safety.
This standard is only considered in all respects comply with the provisions of the relevant product standard housing, under normal conditions of use, housing materials and processes should
Guarantee the achievement of the required level of protection.
If the class of devices to meet the general requirements and test the selected level of protection applies to the device type, the standard is also applicable to the present
Empty enclosure type device.
For mechanical damage, corrosion, corrosive solvents (such as cutting fluid), fungi, insects, solar radiation, freezing, moisture (e.g., due to condensation), burst
Effects of external environmental conditions or other gas bomb shell of the housing apparatus and protective measures and to prevent damage to the outer housing hazardous moving parts
(Fan) contacting the product by the relevant standards.
The separator is not connected to the housing and the barrier specially set for personal safety, not considered part of the housing, the present study not standard.
2 Normative references
Terms of the following documents become provisions of this standard by reference in this standard. For dated reference documents, all later
Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to agreements based on this standard
Whether the latest versions of these documents. For undated references, the latest version applies to this standard.
GB/T 311.2-2002 insulating insulating part 2 with high voltage transmission and distribution equipment using the guidelines (eqv IEC 60071-
2.1996)
GB/T 2421-1999 electric and electronic products Environmental testing - Part 1. General (idt IEC 60068-1. 1988)
IEC 60050-195.1998 International Electrotechnical Vocabulary - Chapter 195. Earthing and protection against electric shock
IEC 60050-826. 1982 International Electrotechnical Vocabulary - Chapter 826. Electrical installations of buildings
IEC 60068-2-68.1994 Environmental testing - Part 2. Test Test L. Dust and sand
3 Terms and Definitions
The following terms and definitions apply to this standard.
GB 4208-2008/IEC 60529.2001
3.1
Some devices can be prevented from being affected and the outer member in direct contact with the device in all directions.
Note. This article definitions from existing International Electrotechnical Vocabulary (IEV), explained as follows in the scope of this standard.
1) providing a human or animal near the housing shell member risk protection.
2) prevent or limit specified in this test with a separator into the form of holes or openings of other components, whether attached to the housing or the cover is provided
Prepared, they are counted as part of the housing, except without the use of a key or tool components can be removed.
3.2
Human or animal contact with live parts.
NOTE. This IEV definitions given information, this standard "direct contact" is "access to hazardous parts" substituted.
3.3
According to standard test methods, the housing for access to hazardous parts, against solid foreign objects or water into the degree of protection provided.
3.4
Additional information indicates that human access to hazardous housing member to prevent ingress of water or solid objects protection level and protection associated with these
Code system.
3.5
Dangerous proximity or contact member.
3.5.1
Subject to certain conditions of external influences cause electric shock charging member.
[IEC 60050-195-1995,195-06-05]
3.5.2
Dangerous moving parts upon contact. Except for smooth rotation shaft.
3.6
Shell on the human body.
--- the contact charging member hazardous low voltage protection;
--- touch dangerous mechanical protection member;
--- guard voltage live parts inside the housing to close the gap is less than a sufficient risk.
NOTE. This protection can be by means of.
--- shell itself;
--- by means of a diaphragm or part of the housing shell from achieved.
3.7
Can be prevented from contacting test with hazardous or close member.
3.8
You can easily mimic or imitate the human part of the tool or the like, by a man armed with a dangerous part to test whether there is sufficient distance between
Clearance inspection tools.
GB 4208-2008/IEC 60529.2001
3.9
Imitation of solid foreign examine the possibility of its test tool into the housing.
3.10
Or a housing itself provided formed by a predetermined external force is applied again after having holes or slits.
4 logo
Degree of protection provided by enclosures expressed in the following manner using IP code.
Configuration 4.1 IP code
IP 2 3 C

Code letter
(International Protection 
The first characteristic numeral
(0-6 or letter X 
Second characteristic numeral
(Letters or numbers 0-8 X 
Additional letters
(The letters A, B, C, D 
Supplementary letters
(The letter H, M, S, W )
Wherein a predetermined number is not required, the letter "X" in place (if two letters are omitted, with "XX" denotes).
Additional letter and (or) supplementary letters may be omitted without instead.
When more than one supplementary letter shall alphabetical order.
When the housing using different installation methods provide different levels of protection, the manufacturer should indicate that the anti-mounting on the specification of the respective
Protection level.
Chapter 10 signs are detailed in housing.
The elements and meanings 4.2 IP code
A brief description of each element of the IP Code in the table below. Clauses indicated in the last column of Table detail.
GB 4208-2008/IEC 60529.2001
Composition numbers or letters of the protection device of the meaning of the meaning of the personnel protection reference reg
Code letter
The first one
Digital features
IP
Against solid foreign objects
No protection
≥ 50mm diameter
12.5mm diameter ≥
2.5mm diameter ≥
≥ 1.0mm diameter
dust-proof
Dust density
To prevent access to dangerous parts
No protection
Back of the hand
finger
tool
metal wire
metal wire
metal wire
Chapter 5
second
Digital features
Additional letters
(Optional)
Supplementary letters
(Optional)
To prevent the harmful effects caused by water
No protection
Vertical drop of water
15 ° drip
Tricking
Splash
Sprinklers
Violent spray
Short-term immersion
Continuous flooding
Special supplemental information
High voltage equipment
Waterproof test sample runtime
Sample still do waterproof test
Climatic conditions
To prevent access to dangerous parts
Back of the hand
finger
tool
metal wire
Chapter 6
Chapter 7
Chapter 8
Application example 4.3 IP Code
The following is the application code and the letters IP configuration example. For more examples, see Chapter 9.
IP44 --- No additional letters, no optional letter.
IPX5 --- omitting first characteristic numeral.
--- IP2X second characteristic numeral omitted.
IP20C --- using additional letters.
IPXXC --- omitting features two numbers, using additional letter.
IPX1C --- omit characteristic numeral, using additional letter.
IP3XD --- omitting the second characteristic numeral, using additional letter.
IP23S --- use supplemental letters.
GB 4208-2008/IEC 60529.2001
IP21CM --- using additional letter and supplementary letter.
IPX5/IPX7 --- for a different role, given two different levels of protection and anti-anti-spray a short period of flooding.
Prevent access to hazardous parts and against solid foreign objects protection rating of 5 indicated by a characteristic numeral
The first number indicates the identification feature 5.1 and 5.2 can meet two conditions.
The first characteristic numeral means.
--- housing part of the body by preventing the human hand or an object close to the hazardous parts provide protection, while
--- housing provides protection against solid foreign objects into the device by preventing device.
When the shell is in line with all levels below a certain degree of protection, should only the digital ID that a rating.
If any of the test clearly applies to a lower protection level, lower than the level of the test need not be performed.
5.1 pairs of guard access to hazardous parts
Table 1 gives a brief description of the meaning of and access to hazardous parts protection level.
A table wherein only the first predetermined protection level number, a brief description of the meaning and not as a predetermined protection level.
Under the first characteristic figure, should maintain adequate clearance between the test with hazardous parts.
Test See Chapter 12.
Table protection level of access to hazardous parts 1 wherein a first number represented by
The first one
Digital features
Protection class
A brief description of the meaning of
Test conditions, see Chapter Article
0 No protection - -
1 to prevent access to hazardous back spherical member having a diameter of 50mm again should have adequate hazardous parts
Clearance
12.2
2 to prevent access to hazardous finger member
Diameter of 12mm, 80mm long test finger should hinge hazardous
Sufficient clearance member
12.2
3 to prevent the tool member hazardous proximity test may not enter housing 2.5mm diameter 12.2
4 to prevent the metal wire member hazardous proximity test may not enter housing 1.0mm diameter 12.2
5 again prevent the metal wires near the hazardous components of 1.0mm diameter not enter the housing 12.2
6 prevents the metal wire near the test member hazardous are not allowed into the shell diameter 1.0mm 12.2
Note. For the case where the first characteristic number 4, 5 and 6, if the test with the housing member to maintain a sufficient gap risk is considered satisfactory.
Standards should be sufficient clearance product 12.3 according to the provisions.
Because while meeting the requirements in Table 2, Table 1 so that the provisions "shall not enter."
5.2 pairs of solid foreign objects into protection
Table 2 gives a brief description of the meaning and prevent the solid foreign matter (including dust) into the degree of protection.
A table wherein only the first predetermined protection level number, a brief description of the meaning and not as a predetermined protection level.
Preventing foreign matter into the solid, when the table 2 in the first characteristic number is 1 or 2, refers to the test with the object can not be completely into the housing, which means the ball
Not the entire diameter of the opening through the housing. Wherein the first number is 3 or 4, with the test object can not be completely into the housing.
5 is a digital dust enclosure, allowing access to a limited number of dust under certain predetermined conditions.
Number of dust-tight housing 6, does not allow any dirt to enter.
NOTE. The first characteristic numeral case 1 to 4 in Table 3 as to prevent the third column the corresponding figures, the shape of regular or irregular three mutually orthogonal dimensions exceed
The solid foreign objects into the housing.
Test See Chapter 13.
GB 4208-2008/IEC 60529.2001
Table 2 against solid foreign matter into the first level of protection represented by the characteristic numeral
The first one
Digital features
Protection class
A brief description of the meaning of
Test conditions, see Chapter Article
0 No protection - -
50mm diameter not less than 1 to prevent solids
foreign body
Spherical object having a diameter of 50mm sample can not completely enter
A shell
13.2
2 to prevent the solid diameter not less than 12.5mm
Foreign object
Spherical object having a diameter of 12.5mm is not again fully retracted
Into a shell
13.2
3 prevents diameter not less than 2.5mm solid
foreign body
With the test object may not enter the full 2.5mm diameter
A shell
13.2
4 prevents diameter not less than 1.0mm solid
foreign body
Having a diameter of 1.0mm the test object may not enter completely
A shell
13.2
5 can not completely prevent dust from entering the dust, but the amount of dust does not enter
Way affect the normal operation of equipment shall not affect safety
13.4
13.5
6 no dust-tight dust 13.4 and 13.6
A body portion having a diameter of not enter the test opening of the housing.
Preventing water ingress protection level 6 wherein the second number represented by
Wherein the second digital representation of the housing and prevent the harmful effect on the water level of protection devices.
Test was carried out with water. Before the test, and not with high-pressure water (or) a sample use of solvents.
Table 3 gives a brief description of the meaning and the degrees of protection second characteristic figures represent. A brief description of the meaning and not as protection,
Prescribed level.
Test Chapter 14.
Wherein the second number is lower than the levels 6 and 6, which identifies the level of said levels below the required compliance of the stage. Therefore, if
Test obviously applies to either all levels below the stage, the stage need not be lower than the test.
Only the second flag bit number is 7 or 8, wherein the immersion housing only for a short time or continuously flooding, water is not suitable (second characteristic
Digital ID is 5 or 6), it is not necessary to meet the digital claim 5 or 6, unless the double flag is shown.
The housing by the following test
Sprinklers
Second characteristic numeral
Short-time/duration Diving
Second characteristic numeral
Identification and marking Applications
5 7 IPX5/IPX7 versatile
6 7 IPX6/IPX7 versatile
5 8 IPX5/IPX8 versatile
6 8 IPX6/IPX8 versatile
- 7 IPX7 limited
- 8 IPX8 limited
"Multi-use" refers to housing must meet the anti-spray can be short-term or sustained diving requirements.
"Restricted" refers to housing only suitable for short-term or continuous diving, and is not suitable for spraying.
GB 4208-2008/IEC 60529.2001
Table 3 preventing water from entering the second level of protection represented by the characteristic numeral
second
Digital features
Protection class
A brief description of the meaning of
Test conditions, see Chapter Article
0 No protection - -
1 the vertical direction prevents vertical dripping dripping should not adversely affect 14.2.1
When the housing 2 to prevent inclination in the range of 15 °
Vertical dripping
When each of the vertical housing inclined in the range of 15 °, vertical
Straight dripping should not adversely affect
14.2.2
3 each vertical anti sprinkling water spray in the range of 60 °, no adverse effect 14.2.3
4 splash water splash 14.2.4 does not adversely affect the respective directions of the housing
5 prevent water spray does not adversely affect the respective directions of the housing 14.2.5
6 Qiang Lie anti Qiang Lie water jet does not adversely affect the housing in all directions 14.2.6
Effect of Anti-7 short immersion in water was immersed in a predetermined pressure after a predetermined time into the housing
Water will not reach harmful levels
14.2.7
8 anti-dive conditions continued to affect production plants and by mutual consent of the user (ratio should feature
Digital is harsh 7) from continuing dive into the water without shell
To reach harmful levels
14.2.8
Prevent access to hazardous levels of protection member 7 represented by the additional letter
Additional letters protection level closer to human risk element.
Additional letter only.
--- access to hazardous physical protection member is higher than the protection level of the first number represents the features;
--- a first number characterized by "X" in place, only for the degree of protection indicates access to hazardous parts.
For example, such a higher level of protection is determined by the shutter, the opening or a suitably shaped shell member with a distance to achieve.
Table 4 lists can easily represent a portion of a human body or a human body as well as the meaning of the hand access to hazardous parts like the degree of protection
Receiving, by the content of these additional letters.
Table protection level of access to hazardous parts indicated by 4 additional letter
Additional letters
Protection class
A brief description of the meaning of
Test conditions, see Chapter Article
A proximity prevent back test with 50mm diameter of the spherical member must ensure that the risk of
Hold sufficient clearance
15.2
B prevent the fingers close to the diameter 12mm, 80mm long test finger with the hinge portion dangerous
Member must maintain a sufficient gap
15.2
C prevent the tool close to the diameter 2.5mm, length 100mm test with the hazardous parts
We must maintain adequate clearance
15.2
D prevent the metal wires close to the diameter 1.0mm, length 100mm test with the hazardous parts
We must maintain adequate clearance
15.2
If the housing for levels below a certain level, only the required level of identity with the additional letters. If the trial is clearly applicable
Any at all levels below this level, lower than the level of the test is not necessary.
Test See Chapter 15.
Sample IP code in Appendix A.
GB 4208-2008/IEC 60529.2001
8 Supplementary letters
In the relevant product standard, supplementary letters may be content to add. Supplementary letters or numbers on the second feature additional letter
after that.
Supplemental content should be consistent with the requirements of this standard, product standard shall specify the requirements to supplement the level test.
Supplementary content identification letters and have the following meanings.
Letter Meaning
H high-voltage equipment
M waterproof test was carried out in the apparatus when the movable member (rotor for a rotating electrical machine) movement
S waterproof test was carried out in the apparatus when the movable member (rotor for a rotating electrical machine) stationary
W provide additional protection or treatment to suit climatic conditions as specified
Note. the same after a predetermined GB W 4208-1984 W placed between IP and a predetermined number and wherein the digital edition or additional features disposed letters meaning.
Other letters can be used in product standards. In order to avoid repeated use of supplementary letters refer to the new product standards and asked to see the letter of B. 8.
Without the letter S and M, the degree of protection indicates whether the operating member irrespective of the device, while the machine is running and the static tests are done.
However, if under the test conditions further by obviously, do a general test conditions is sufficient.
Example 9 IP identification code
9.1 unused IP selectable letter codes
IP 3


Code letter

The first characteristic numeral
Second characteristic numeral 
IP code with the above-mentioned housing, wherein.
(3) --- prevent human hand tool diameter not less than 2.5mm access to hazardous parts;
--- prevented diameter not less than 2.5mm of solid objects into the device housing.
(4) --- prevent splashing in all directions of the equipment housing harmful effects.
9.2 selectable letter codes IP
IP 2 3 C


Code letter

The first characteristic numeral

Second characteristic numeral

Additional letters
 supplementary letters
IP code with the above-mentioned housing, wherein.
(2) prevent a person from approaching danger --- member with a finger;
--- not less than 12.5mm in diameter to prevent solid foreign matter into the housing.
(3) --- water spray to prevent the harmful effects of the external housing of the device.
(C) --- prevent human hand diameter not less than 2.5mm length does not exceed 100mm tool access to hazardous parts (the tool should be worn all
Through the housing, until the blank disc).
Test (S) --- to prevent the harmful effects caused by water is carried out when all the device components stationary.
GB 4208-2008/IEC 60529.2001
10 logo
Product standard requirements make provisions to deal with signs.
For the following cases, product standards deal with methods of marking also make appropriate provisions.
--- when the housing portion and another portion of the protection level is not the same;
--- installation location of an impact when the degree of protection;
--- shall state the maximum dive depth and time.
11 test General requirements
11.1 waterproof and dustproof test environmental conditions
Unless otherwise specified in the relevant product standard, the test shall be carried out in GB/T 2421-1999 standard specified environmental conditions.
During the test, the recommended environmental conditions are as follows.
Temperature range. 15 ℃ ~ 35 ℃;
Relative Humidity. 25% to 75%;
Atmospheric pressure. 86kPa ~ 106kPa (860mbar ~ 1060mbar).
11.2 Sample
Tests specified in this standard type tests.
Unless otherwise specified in the product standard, each test sample should be clean with new products. All parts specified by the manufacturer should be safe state
Fitted in place.
The test can not be performed in the entire device, it should be representative of the member or device to have a smaller design will be the same proportion.
For product standards make provisions to deal similar to the following details.
--- number of samples;
--- specimen mount, the combination of the positioning conditions (e.g., ceiling, floor or wall mounted);
NOTE. This is also a device for use with other program related device, such as devices used alone or in combination.
--- pretreatment process (if any);
--- charged or not the test;
Moving parts when --- or not the test.
If the standard does not specify the details of the product, manufacturer's instructions should be prescribed.
11.3 Application of test requirements is determined with the test results
Application and general requirements for test equipment has scuppers test when ventilation holes to accept the conditions specified by the relevant product standard. If there is no such
Provisions, should be required to carry out this standard.
Judgment of test results by the relevant product standard. If not specified, the standard conditions should be accepted as a minimum requirement.
A combination of the first characteristic numeral 11.4 Test Conditions
Identifies the first characteristic numeral implies that all test conditions to meet that number.
The first characteristic numeral test conditions shown in Table 5.
Table 5 Degree of protection test conditions wherein a first number represented by
The first one
Digital features
Protection test
To prevent access to dangerous parts of solid foreign
0 is not required to test the test does not require
50mm diameter balls can not completely enter the housing 1, and to maintain adequate clearance with live parts
2 articulated test finger may enter 80mm long, but must maintain a sufficient gap portion diameter of 12.5mm and the ball can not be charged completely into the
Into the housing
GB 4208-2008/IEC 60529.2001
Table 5 (Continued)
The first one
Digital features
Protection test
To prevent access to dangerous parts of solid foreign
2.5mm diameter bars 3 may not ent...