Test program to determine the degree of protection provided by the shells (IP code)
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Description
Since November 2018, the laboratory has opened the implementation of the full version of tests for determining the degree of protection provided by electrical equipment shells (power sources, electronic components, electrical and radio products, household electrical appliances, lamps, lamps, etc.), as well as for all types of products , which require rationing of the degrees of protection provided by the shells from the penetration of solid objects and water. The main regulatory document is the interstate standard GOST 14254-2015 (IEC 60529: 2013).
To meet the requirements of the test methods contained in this standard, as well as other regulatory documents, the Archilight laboratory has a set of equipment, contains a dust chamber, a test chamber for the effects of water droplets and jets (for products with IP up to 64), an additional unit for testing on the impact of water jets for products with IP 65-66 (Figure 1), as well as vessels for complete immersion of products with IP 67. Also there are all the necessary elements to implement tests to determine the degree of protection against access to hazardous hours wells (Table 1), referred to the first characteristic number and degree of protection against solid foreign objects (Table 2) in the dust chamber (Figure 2), also referred to first characteristic code number.
Sprinkler chamber for testing the effects of water droplets and jets (for products with IP up to 64) with a unit for testing the effects of water jets for products with IP 65-66.
Table 1 provides a brief description and definitions of the degrees of protection against access to hazardous parts. The degrees of protection listed in Table 1 should be normalized using only the first characteristic figure, and not using a brief description or definition.
Table 1. Degrees of protection against access to hazardous parts, indicated by the first characteristic number according to GOST 14254-2015
The first character
historical number
Degree of protection
Test conditions, item number GOST 14254-2015
Short description
Definition
0
No protection
-
-
one
Protected from access to hazardous parts with the back of your hand
Accessibility probe - a sphere with a diameter of 50 mm - must remain at a sufficient distance from dangerous parts
12.2
2
Protected from access to hazardous parts with your finger
The test pivot pin with a diameter of 12 mm and a length of 80 mm must be kept at a sufficient distance from dangerous parts.
12.2
3
Protected from access to hazardous parts by instrument
Accessibility probe with a diameter of 2.5 mm should not penetrate the inside of the shell
12.2
four
Protected from access to hazardous parts with wire
The gauge of accessibility with a diameter of 1.0 mm should not penetrate into the shell
12.2
five
Protected from access to hazardous parts with wire
The gauge of accessibility with a diameter of 1.0 mm should not penetrate into the shell
12.2
6
Protected from access to hazardous parts with wire
The gauge of accessibility with a diameter of 1.0 mm should not penetrate into the shell
12.2
Note - For the first characteristic digits 3, 4, 5, 6, protection against access to hazardous parts is considered satisfactory if there is a sufficient gap. The term "should not penetrate" is given in Table 1, taking into account linkages with the parallel requirements of Table 2.
Table 2 provides a brief description and definitions of the degrees of protection of the shells from the penetration of external solid objects, including dust. Protection against ingress of external solid objects implies that the probes are the objects listed in table 2 to figure 2 inclusive, do not penetrate completely into the shell. This means that the largest diameter of the sphere should not pass through the hole in the shell. Probes objects that correspond to the numbers 3 and 4, should not penetrate into the shell.
Dust-proof enclosures, corresponding to figure 5, can pass a limited amount of dust under certain conditions. Dustproof shells, corresponding to the number 6, should not allow the penetration of any dust.
Table 2 - Degrees of protection from external solid objects, denoted by the first characteristic figure according to GOST 14254-2015
The first character
historical number
Degree of protection
Test conditions, item number GOST 14254-2015
Short description
Definition
0
No protection
-
-
one
Protected from external solid objects with a diameter greater than or equal to 50 mm
The probe object - a sphere with a diameter of 50 mm - should not penetrate completely
13.2
2
Protected from external solid objects with a diameter greater than or equal to 12.5 mm
The probe object - a sphere with a diameter of 12.5 mm - should not penetrate completely
13.2
3
Protected from external solid objects with a diameter greater than or equal to 2.5 mm
A probe with a diameter of 2.5 mm must not penetrate either fully or partially
13.2
four
Protected from external solid objects with a diameter greater than or equal to 1.0 mm
A probe with a diameter of 1.0 mm must not penetrate either fully or partially
13.2
five
Dustproof
The penetration of dust is not completely excluded, but the dust should not penetrate in an amount sufficient to violate
normal operation of the equipment or reduce its safety
13.4, 13.5
6
Dustproof
Dust does not penetrate into the shell
13.4, 13.5
The largest diameter of the probe object should not pass through the hole in the shell.
The second characteristic number indicates the degree of protection provided by the enclosures in relation to the harmful effects on equipment due to water penetration. Table 4 provides a brief description and definition of protection for each degree represented by the second characteristic figure. It is assumed that the designation of the second characteristic number from 0 to 6, 9 means compliance simultaneously with all the requirements for smaller numbers. It is not necessary to conduct tests to establish compliance with any of the lower degrees of protection, if it is obvious that the results of such tests will be obviously satisfactory.
It is assumed that shells, designated only by one characteristic figure 7 or 8, are unsuitable for withstanding the impact of water jets (indicated by the second characteristic figure 5, 6 or 9) and do not have to meet the requirements of figures 5, 6 or 9, except for double (triple) coding as below (Table 3):
Table 3. Combinations of double (triple) coding cases.
Shell successfully withstands impact tests
Marking and Marking
Degree of use
jets of water, the second characteristic figure
temporary (short) or long immersion in water, the second characteristic figure
five
7
IPX5 / IPX7
Double
five
eight
IPX5 / IPX8
Double
6
7
IPX6 / IPX7
Double
6
eight
IPX6 / IPX8
Double
9
7
IPX9 / IPX7
Double
9
eight
IPX9 / IPX8
Double
5 and 9
7
IPX5 / IPX7 / IPX9
Triple
5 and 9
eight
IPX5 / IPX8 / IPX9
Triple
6 and 9
7
IPX6 / IPX7 / IPX9
Triple
6 and 9
eight
IPX6 / IPX8 / IPX9
Triple
-
7
IPX7
Limited
-
eight
IPX8
Limited
9
-
IPX9
Limited
5 and 9
-
IPX5 / IPX9
Double
6 and 9
-
IPX6 / IPX9
Double
Table 4. The degree of protection against water, denoted using the second characteristic figures according to GOST 14254-2015
The second character
historical number
Degree of protection
Test conditions, item number GOST 14254-2015
Short description
Definition
0
No protection
-
-
one
Protected from vertically falling water droplets
Vertically falling drops of water should not have a harmful effect.
14.2.1
2
Protected from vertically falling drops of water when the shell is deflected at an angle of up to 15 °
Vertically falling drops should not have a harmful effect when the shell is deflected from the vertical in any direction at an angle of up to 15 ° inclusive
14.2.2
3
Protected from water falling in the form of rain
Water falling in the form of splashes in any direction that makes an angle of up to 60 ° inclusive with the vertical should not have a harmful effect.
14.2.3
four
Protected against continuous spraying
Water falling in the form of splashes on the shell from any direction should not have a harmful effect.
14.2.4
five
Protected against water jets
Water sent to the shell in the form of jets from any direction should not have a harmful effect.
14.2.5
6
Protected from strong water jets
Water directed to the shell in the form of strong jets from any direction should not have a harmful effect.
14.2.6
7
Protected from exposure during temporary (short) immersion in water
The penetration of water into the shell in an amount that causes a harmful effect should be prevented when it is immersed for a short time under standardized conditions for pressure and duration.
14.2.7
eight
Protected from exposure to prolonged immersion
The penetration of water into the shell in quantities that cause harmful effects should be excluded when it is immersed in water for a long time under conditions agreed between the manufacturer and the consumer, but more severe than the conditions for figure 7
14.2.8
9
Protected from hot water jets under high pressure.
High pressure hot water that is fed to the shell should not have a harmful effect.
14.2.9
