GOST 15150-69 applies to all types of machines, instruments and other technical products and establishes the macroclimatic zoning of the globe, performance, category, operating conditions, storage and transportation of products in terms of impact climatic factors external environment
Types of climatic versions, designation
- U - temperate climate (+40/-45 o C);
- CL - cold climate (+40/-60 o C);
- UHL - temperate and cold climate (+40/-60 o C);
- T - tropical climate (+40/+1 o C);
- M - maritime temperate cold climate (+40/-40 o C);
- O - general climatic version (except for marine) (+50 / -60 ° C);
- OM - general climatic marine version (+45 / -40 ° С);
- В — all climatic version (+50/-60 оС).
Climatic performance in Central Antarctica is not determined by GOST 15150-69. Several macroclimatic regions can be combined into a group of macroclimatic regions (for example, the category of climatic version UHL, T).
Designation example:
KSO 200-16-160 UHL 1.This means that a bellows expansion joint with a nominal diameter of 200 mm, a working pressure of 16 bar and a compensating capacity of 160 mm is used in a moderately cold climate at temperatures up to minus 60 ° C at outdoors.
The number after the letters indicates the accommodation category:
- 1 - open air;
- 2 - the same as 1 only without direct sunlight and without precipitation;
- 3 - indoors without climate control;
- 4 - indoors with ventilation and heating;
- 5 - in rooms with high humidity, without artificial regulation of climatic conditions.
General provisions GOST 15150-69
- GOST 15150-69 should be used in the design and manufacture of products in accordance with the climatic modifications reflected in it. In particular, it should be used in the preparation of technical specifications for the development or modernization of products, as well as in the development of state standards and specifications that establish requirements regarding the impact of climatic environmental factors for a group of products, and in the absence of these group documents - for certain types of products . All products must be manufactured in accordance with climatic modifications in accordance with GOST 15150-69
- Products must maintain their parameters within the limits established by the technical specifications, standards or specifications during the service life and shelf life specified in the technical specifications, standards or specifications, after and (or) in the process of exposure to climatic factors, the values of which are established by this standard i.e. must comply with climatic modifications in accordance with GOST 15150-69.
- Products are intended for operation, storage and transportation in the range from the upper to the lower values of these climatic modifications, while in addition to the ranges of climatic factors within which the operability of the products is ensured during operation, one or more narrower ranges of climatic factors can be set, within which provide a narrower range of parameter deviations (for example, higher accuracy of regulation or measurements), i.e. climatic performance must comply with the category according to GOST 15150-69.
- For specific types or groups of products, the types of influencing climatic factors affecting the climatic performance according to GOST and their nominal values are set depending on the operating conditions of the products in the relevant technical specifications, standards and specifications. If there are documents that establish a relationship between the values of factors for product groups, with the specified climatic modifications in accordance with GOST 15150-69, one should be guided by the instructions of these documents
- It is allowed to operate products in macroclimatic regions and that differ from those for which the products are intended, if climatic factors during the operation period do not go beyond the nominal values established for these products. For example, products of the UHL4 climatic modification type can be operated in the UHL2 conditions during the summer dry period.
- It is allowed to operate products in conditions where the values of climatic factors go beyond the established nominal values, if service life deviations are acceptable. At the same time, the admissibility of operation, the values of climatic factors for performance, the permissible deviations of the service life are agreed with the supplier of the products.
- In accordance with economic and technical feasibility, it is recommended to manufacture products suitable for operation in several areas established by this standard, i.e. the category of climatic modification according to GOST 15150-69 should cover several climatic regions.
- Products can also be designed for operation in several macroclimatic regions; in these cases, combinations various conditions operation or storage with periods of stay in these conditions are set in the standards or technical specifications for products, climatic modifications (category of climatic modification) must be indicated in accompanying documents for goods.
- A macroclimatic region with a temperate climate UHL (category of climatic performance UHL) includes areas where the average of the annual absolute maximum air temperatures is equal to or below plus 40°С, and the average of the annual absolute minimums is equal to or higher than minus 45°С.
- D it is omitted from a macroclimatic region with a temperate climate to single out a macroclimatic subregion with a warm temperate macroclimate subtype, for which the average of the annual absolute minimum air temperatures is equal to or higher than minus 25 °C.
- The macroclimatic region with a cold climate KhL (climatic modification category KhL) includes areas where the average annual absolute minimum air temperature is below minus 45°C. The region of cold climate UHL (category of climatic modification UHL) is indicated on the map.
By agreement with the customer, it is allowed to supply products designed for a temperate climate U1 to areas within 50 km from the southwestern and southeastern borders of the macroclimatic region with a cold climate on the territory of the Russian Federation.
Federation.
Products placed on mobile installations intended for deliveries to the coast of the Okhotsk (to the north of the mouth of the Uda River) and the Bering Seas (with the exception of the Kamchatka Peninsula) must be manufactured in the HL version.
Temperature values according to climatic version
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Product execution |
Air temperature value during operation, °C |
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Limit working |
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1; 1.1; 2; 2.1; 3 |
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1; 1.1; 2; 2.1; 3 |
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1; 1.1; 2; 2.1; 3 |
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1; 1.1; 2; 2.1; 3; 3.1 |
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1; 1.1; 2; 2.1; 3; 3.1 |
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1; 1.1; 2; 2.1; 3; 5; 5.1 |
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1; 1.1; 2; 2.1; 3; 5; 5.1 |
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1; 1.1; 2; 2.1; 3; 5; 5.1 |
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1; 1.1; 2; 2.1; 3 |
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Table. Standards for climatic modifications according to GOST. Marking and designation of climatic modifications GOST 15150-69.
GOST 15150-69 applies to all types of machines, instruments and other technical products and establishes the macroclimatic zoning of the globe, performance, category, operating conditions, storage and transportation of products in terms of the impact of climatic environmental factors. Climatic performance in Central Antarctica is not determined by GOST 15150-69. Several macroclimatic regions can be combined into a group of macroclimatic regions (for example, the category of climatic version UHL, T).
Types of climatic versions, designation:
- U - temperate climate (+40/-45 o C);
- CL - cold climate (+40/-60 o C);
- UHL - temperate and cold climate (+40/-60 o C);
- T - tropical climate (+40/+1 o C);
- M - maritime temperate cold climate (+40/-40 o C);
- O - general climatic version (except for marine) (+50 / -60 ° C);
- OM - general climatic marine version (+45 / -40 ° С);
- B - all climatic modifications (+50/-60 о С).
Designation example: Butterfly valve ZP 200-16 UHL 1. This means that the rotary valve with a nominal diameter of 200 mm and a working pressure of 16 bar can be used in a moderately cold climate at temperatures up to minus 60 ° C in the open air.
The number after the letters indicates the accommodation category:
- 1 - open air;
- 2 - the same as 1 only without direct sunlight and without precipitation;
- 3 - indoors without climate control;
- 4 - indoors with ventilation and heating;
- 5 - in rooms with high humidity, without artificial regulation of climatic conditions.
General provisions GOST 15150-69
- GOST 15150-69 should be used in the design and manufacture of products in accordance with the climatic modifications reflected in it. In particular, it should be used in the preparation of technical specifications for the development or modernization of products, as well as in the development of state standards and specifications that establish requirements regarding the impact of climatic environmental factors for a group of products, and in the absence of these group documents - for certain types of products . All products must be manufactured in accordance with climatic modifications in accordance with GOST 15150-69
- Products must maintain their parameters within the limits established by the technical specifications, standards or specifications during the service life and shelf life specified in the technical specifications, standards or specifications, after and (or) in the process of exposure to climatic factors, the values of which are established by this standard i.e. must comply with climatic modifications in accordance with GOST 15150-69.
- Products are intended for operation, storage and transportation in the range from the upper to the lower values of these climatic modifications, while in addition to the ranges of climatic factors within which the operability of the products is ensured during operation, one or more narrower ranges of climatic factors can be set, within which provide a narrower range of parameter deviations (for example, higher accuracy of regulation or measurements), i.e. climatic performance must comply with the category according to GOST 15150-69.
- For specific types or groups of products, the types of influencing climatic factors affecting the climatic performance according to GOST and their nominal values are set depending on the operating conditions of the products in the relevant technical specifications, standards and specifications. If there are documents that establish a relationship between the values of factors for product groups, with the specified climatic modifications in accordance with GOST 15150-69, one should be guided by the instructions of these documents
- It is allowed to operate products in macroclimatic regions and that differ from those for which the products are intended, if climatic factors during the operation period do not go beyond the nominal values established for these products. For example, products of the UHL4 climatic modification type can be operated in the UHL2 conditions during the summer dry period.
- It is allowed to operate products in conditions where the values of climatic factors go beyond the established nominal values, if service life deviations are acceptable. At the same time, the admissibility of operation, the values of climatic factors for performance, the permissible deviations of the service life are agreed with the supplier of the products.
- In accordance with economic and technical feasibility, it is recommended to manufacture products suitable for operation in several areas established by this standard, i.e. the category of climatic modification according to GOST 15150-69 should cover several climatic regions.
- Products can also be designed for operation in several macroclimatic regions; in these cases, combinations of various operating or storage conditions with periods of stay in these conditions are established in the standards or technical specifications for products, climatic modifications (climatic modification category) must be indicated in the accompanying documents for the product.
- A macroclimatic region with a temperate climate UHL (category of climatic modification UHL) includes areas where the average annual absolute maximum air temperature is equal to or lower than plus 40°С, and the average annual absolute minimum air temperature is equal to or higher than minus 45°С.
- It is allowed to single out a macroclimatic subregion with a warm temperate subtype of macroclimate from a macroclimatic region with a temperate climate, for which the average of the annual absolute minimum air temperatures is equal to or higher than minus 25 °C.
- The macroclimatic region with a cold climate KhL (climatic modification category KhL) includes areas where the average annual absolute minimum air temperature is below minus 45°C. The region of cold climate UHL (category of climatic modification UHL) is indicated on the map.
By agreement with the customer, it is allowed to supply products designed for a temperate climate U1 to areas within 50 km from the southwestern and southeastern borders of the macroclimatic region with a cold climate on the territory of the Russian Federation.
Federation. Products placed on mobile installations intended for deliveries to the coast of the Okhotsk (to the north of the mouth of the Uda River) and the Bering Seas (with the exception of the Kamchatka Peninsula) must be manufactured in the HL version.
Table: temperature values according to the climatic version. Marking and designation of climatic modifications GOST 15150-69.
| Product execution | Product category | Air temperature value during operation, °C | |||
| Working | Limit working | ||||
| top | bottom | top | bottom | ||
| U, TU | 1; 1.1; 2; 2.1; 3 | +40 | -45 | +45 | -50 |
| 3.1 | +40 | -10 | +45 | -10 | |
| 5; 5.1 | +35 | -5 | +35 | -5 | |
| HL | 1; 1.1; 2; 2.1; 3 | +40 | -60 | +45 | -70 |
| 3.1 | +40 | -10 | +45 | -10 | |
| 5; 5.1 | +35 | -10 | +35 | -10 | |
| UHL | 1; 1.1; 2; 2.1; 3 | +40 | -60 | +45 | -70 |
| 3.1 | +40 | -10 | +45 | -10 | |
| 4 | +35 | +1 | +40 | +1 | |
| 4.1 | +25 | +10 | +40 | +1 | |
| 4.2 | +35 | +10 | +40 | +1 | |
| 5; 5.1 | +35 | -10 | +35 | -10 | |
| TV | 1; 1.1; 2; 2.1; 3; 3.1 | +40 | +1 | +45 | +1 |
| 4 | +40 | +1 | +45 | +1 | |
| 4.1 | +25 | +10 | +40 | +1 | |
| 4.2 | +45 | +10 | +45 | +10 | |
| 5; 5.1 | +35 | +1 | +35 | +1 | |
| T, TS | 1; 1.1; 2; 2.1; 3; 3.1 | +50 | -10 | +60 | -10 |
| 4 | +45 | +1 | +55 | +1 | |
| 4.1 | +25 | +10 | +40 | +1 | |
| 4.2 | +45 | +10 | +45 | +10 | |
| 5; 5.1 | +35 | +1 | +35 | +1 | |
| ABOUT | 1; 1.1; 2; 2.1 | +50 | -60 | +60 | -70 |
| 4 | +45 | +1 | +55 | +1 | |
| 4.1 | +25 | +10 | +40 | +1 | |
| 4.2 | +45 | +10 | +45 | +1 | |
| 5; 5.1 | +35 | -10 | +35 | -10 | |
| M | 1; 1.1; 2; 2.1; 3; 5; 5.1 | +40 | -40 | +45 | -40 |
| 4; 3.1 | +40 | -10 | +40 | -10 | |
| 4.1 | +35 | +15 | +40 | +1 | |
| 4.2 | +40 | +1 | +40 | +1 | |
| TM | 1; 1.1; 2; 2.1; 3; 5; 5.1 | +45 | +1 | +45 | +1 |
| 4 | +45 | +1 | +45 | +1 | |
| 4.1 | +25 | +10 | +40 | +1 | |
| 4.2 | +45 | +1 | +45 | +1 | |
| OM | 1; 1.1; 2; 2.1; 3; 5; 5.1 | +45 | -40 | +45 | -40 |
| 4; 3.1 | +45 | -10 | +45 | -10 | |
| 4.1 | +35 | +15 | +40 | +1 | |
| 4.2 | +40 | +1 | +40 | +1 | |
| IN | 1; 1.1; 2; 2.1; 3 | +50 | -60 | +60 | -70 |
| 3.1 | +50 | -10 | +60 | -10 | |
| 4 | +45 | -10 | +55 | -10 | |
| 4.1 | +25 | +10 | +40 | +1 | |
| 4.2 | +45 | +1 | +45 | +1 | |
| 5; 5.1 | +45 | -40 | +45 | -40 | |
Climatic modification implies types of climatic modification of machines, instruments, equipment and other technical elements and products.
In Russia, climatic design is defined in GOST 15150-69, which sounds like “Machines, devices and other technical products. Versions for different climatic regions. Categories, conditions of operation, storage and transportation in terms of the impact of environmental climatic factors.
Most often, the climatic version is indicated in the name of technical equipment or machines in the last characters, for example, a fire arrester OP-50 UHL, or a steel gate valve 30s41nzh Du50 Ru16 U, etc.
As a result, at the moment, the following categories of climatic performance can be distinguished:
Category No. 1 - outdoors (for outdoor installation);
Category No. 2 - under a canopy or in a room where fluctuations in such parameters as temperature and humidity differ little from fluctuations in the open air and there is relatively free access to outside air (in tents, trailers, metal rooms without additional thermal insulation) .
Category No. 3 - indoors with natural ventilation without artificial regulation of climatic conditions (in brick or concrete, in metal rooms with thermal insulation).
Category No. 4 - in rooms with artificially controlled climatic conditions (heated or cooled and ventilated).
Category No. 5 - in rooms with high humidity(for example, in unheated and unventilated underground rooms).
The combination of climatic modification and category of accommodation is called the type of climatic modification (for example, UZ, HL1, etc.). Symbols indicating the type of climatic modification are included in the designation of the product type (for example, valve KDM-50M U1, or ball valve KSHTsF-80 HL1).
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Climatic versions of products |
Notation |
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alphabetic |
digital |
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Products intended for operation on land, rivers, lakes |
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For a macroclimatic region with a temperate climate |
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For macroclimatic regions with a temperate and cold climate |
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For a macroclimatic region with a humid tropical climate |
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For a macroclimatic region with a dry tropical climate |
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For macroclimatic regions with both dry and humid tropical climates |
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For all macroclimatic regions on land, except for a macroclimatic region with a very cold climate (general climatic version) |
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Products intended for operation in macroclimatic regions with maritime climate |
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For a macroclimatic region with a moderately cold maritime climate |
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For a macro-climatic region with a tropical maritime climate, including coastal vessels or other vessels intended for navigation only in this region |
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For macroclimatic regions with both moderately cold and tropical maritime climates, including ships with an unlimited navigation area |
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Products intended for operation in all macroclimatic regions on land and at sea, except for a macroclimatic region with a very cold climate (all-climatic version) |
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According to GOST 16350, products in U and UHL versions can be operated in warm humid, hot dry and very hot dry climatic regions in which the average of the annual absolute maximum air temperatures is above 40 ° C and (or) a combination of temperatures equal to or above 20 ° C , and relative humidity equal to or higher than 80% is observed for more than 12 hours a day for a continuous period of more than two months a year. |
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Modern manufacturers of machines, appliances and other electrical products are required to adhere to sufficient a large number all kinds of legal documents. Therefore, the offered goods will meet both the requirements of the buyer and the requirements of the quality control authorities. One of these conditions is the climatic performance.
Terminology
Familiarization with each question must begin with a study of the definitions used. Therefore, to begin with, we will try to give the most understandable formulation. So, climatic performance is a system of categories that includes the conditions for normal operation, transportation and storage of technical products in relation to the macroclimatic zoning of the surface of the globe. In other words, this term defines the conditions under which one or another electrical installation can be operated. In turn, binding to regions allows taking into account various climatic conditions.
Normative documents
Such a system is certified by the current legislation and is included in GOST 15150 "Climatic version". This standard applies to all types and varieties of instruments, machines and other technical products. All requirements of the above document are mandatory. Exceptions are only conditions marked "recommended" or "permissible". Like any other, GOST "Climatic performance" lists the areas of application of the regulatory documentation in question. Let's consider some of them.
1. This standard applies to both the design and manufacture of technical products. In addition, its observance is mandatory when drawing up assignments for the development and subsequent modernization, the creation of standards.
2. Climatic version of each product, like others technical specifications, should be kept within the set values.
3. Products manufactured by manufacturers are intended for storage, operation and transportation within the ranges of values of the factors under consideration. In exceptional cases, they may contain a list of permissible deviations during operation.
4. In accordance with technical and economic feasibility, it is recommended to produce technical products suitable for operation in several macro-regions.
Currently, there are several categories that are based on the division of territories with similar environmental conditions. As a rule, the designation of a particular group is carried out using the appropriate letter marking. Let's take a closer look at each category.
U marking
In the Latin version, it is denoted by the letter "N". A similar climatic design is used for areas characterized by moderate environmental conditions. In addition, it should be remembered that technical products marked in this way may be subject to operation in a warm humid, hot dry, as well as very hot dry macroclimatic region, in which the average value for the annual absolute maximum air temperatures is above 40 degrees Celsius, and the humidity value is 80 percent or more. In this case, such characteristics should be observed for more than 12 hours every day for a two-month continuous period. In turn, a temperate climate has the following characteristics of atmospheric air: the annual absolute maximum temperature does not exceed forty degrees Celsius. From the foregoing, we can conclude that the climatic modification U has the following temperature range: from -45 0 С to +40 0 С.
HL marking
In the Latin version, it is denoted by the letter "F". This group is characterized by cold climates. The annual absolute temperature minimum is -45 degrees Celsius. Electrical equipment with this type of marking is designed for operation within the following limits: -60 0 С - +40 0 С.
UHL marking
In the Latin version, it is denoted by the letters "NF". GOST "Climatic performance" refers to this category areas with moderate and cold conditions environment. The temperature range of normal operation of products with such markings has the same limits as those of the previous group. In addition, products released with this category can be used in the same cases as products of group Y. For example, in hot and very hot dry climates, subject to the above conditions.
TV marking
In the Latin version letter designation"TN". Such a climatic design is characterized by the operation of technical products in wet tropical environment environment. Atmospheric air has the following parameters: temperature over 20 degrees Celsius, humidity over 80 percent. special condition is to maintain the above requirements for more than 12 hours every day for two months continuously. The operating temperature limits for normal operation are +1 - +40 0 С.
Vehicle marking
In the Latin version, it is denoted by the letters "TA". Despite the similarity in name with the previous category, this group has many differences. The average value of the annual absolute maximum temperatures is +40 degrees Celsius. The range of such values when used ranges from -10 to +50 0 С.
T marking
In the Latin version, it is denoted by the letter "T". Technical products marked with this marking are capable of normal operation in tropical climates.
Marking O
In the Latin version, it is denoted by the letter "U" and is a general climatic version. Products characterized in this way can be used in all macro-climatic regions of the earth, except for very cold environmental conditions. Temperature limits range from -60 0 С to +50 0 С.
Marking M
In the Latin version, it is also denoted by the letter "M". This category includes electrical products that are designed for normal operation in macroclimatic regions in a moderately cold marine-type environment.
TM marking
In the Latin version, it is denoted by the letters "MT" and includes territories characterized by tropical marine atmospheric air conditions. This category includes technical products intended for operation on coastal navigation vessels or any other vessels used only in the redistribution of these areas.
OM marking
In the Latin version, the letter designation is "MU". The presented group includes machines, devices and other products, the normal operation of which will be carried out in areas with both tropical and temperate cold climates. Thus, various vessels with unlimited navigation areas can be attributed to the category under consideration.
Marking B
In the Latin version, it is denoted by the letter "W". This group is quite specific, since it includes electrical products intended for widespread use, both on land and on water. Such a performance is called all-climatic. A feature is the impossibility of application only in areas characterized by very cold environmental conditions. Temperature limits for normal operation range from -60 to +50 degrees Celsius.
Locations
At present, electrical products are marked in a special way (climatic version and placement category are indicated). In this regard, the marking is a combination of an alphabetic and numerical designation. This allows buyers to see at a glance what suits them. this device or not.
Category 1
Technical products marked in this way are intended for outdoor use. Therefore, they are exposed to the totality of atmospheric factors. For example, climatic version U1.
Category 2
It assumes normal operation of equipment under a canopy or in rooms subject to fluctuations in the values of atmospheric air parameters almost to the same extent as open space. For example, it can be bodies.
Category 3
This group includes technical products that must be used only in enclosed spaces. At the same time, the latter should have the following features: the absence of artificial regulators of environmental conditions; exposure to dust and sand is significantly less than outdoors. Climatic version U3 can be used in rooms with thermal insulation made of metal, wood, concrete and other materials. Such objects can be classified as irregularly heated. Thus, the climatic version of U3 implies the absence of precipitation, direct sunlight, a significant reduction in the impact of wind and moisture.
Category 4
Equipment belonging to this group can be used in rooms characterized by artificial regulation of environmental parameters, well-ventilated underground buildings. It implies the absence of direct solar radiation, wind, moisture, sand.
Category 5
Such technical products can be used in rooms with high humidity values. For example, in underground rooms, in the soil, as well as on ships.
Marking ( a brief description of protective coatings, types of climatic modification and categories of product placement, degrees of protection). Products designed for various climatic regions, categories, operating and storage conditions in terms of the impact of climatic environmental factors are marked in accordance with GOST 1515069. According to the degree of protection, the products provided by the shells are marked in accordance with GOST 1425496. Climatic modifications are marked: U1, U2, U3, T1, T2, T3, UHL1, UHL4, UT1.5.
U1- products for use in areas with a temperate climate with placement category 1 (outdoors).
U2- products for operation in areas with a temperate climate with placement category 2 (under a canopy or in rooms with free air access).
UZ- products for use in areas with a temperate climate with placement category 3 (indoors with natural ventilation).
Т1.Т2.ТЗ- products for operation in areas with both dry and humid tropical climates, with placement in the open air, under a canopy, in enclosed spaces with natural ventilation.
UHL1- products for operation in areas with a temperate and cold climate with placement category 1 (outdoors).
UHL4- products for operation in areas with a temperate and cold climate with placement category 4 (in rooms with artificially controlled climatic conditions).
UT1.5- products for use in areas with a temperate climate
and in areas with a dry or humid tropical climate, both with placement category 1 (outdoors) and placement category 5 (in rooms with high humidity).
Index "C" In the product labeling, it denotes a zinc coating obtained by hot dip galvanizing.
Letter "X" In the product labeling, it denotes a chemical resistant coating.
| Climatic performance | Accommodation category | ||
| At | With a temperate climate. The average of the annual absolute maximum air temperatures is equal to or below +40 °C, the average of the annual absolute minimums is above -45 °С. Operating temperature range during operation –45...+40 °С |
1 | For outdoor work |
| HL | With a cold climate. The average of the annual absolute minimum temperatures is below -45 °С. Operating temperature range during operation –60...+40 °С |
2 | For work indoors, where fluctuations in air humidity are not very different from fluctuations in the open air, for example: in tents, car bodies, trailers, metal rooms without thermal insulation, as well as in casings of complete devices of category 1 or under a canopy (there is no direct effect of solar radiation and precipitation on the product) |
| UHL | With a temperate and cold climate. Operating temperature range during operation –60...+40 °С |
3 | For work in enclosed spaces with natural ventilation, without artificial regulation of climatic conditions, where temperature and humidity fluctuations, as well as the action of sand and dust are much less than outside, for example: in metal thermally insulated, stone, concrete, wooden rooms (significant reduction in the effect of solar radiation, wind, precipitation, lack of dew) |
| T | tropical climate | 4 | For work in rooms with an artificially controlled microclimate, for example: outside covered heated and ventilated industrial and other, including underground, premises with good ventilation (lack of direct action of precipitation, wind, as well as sand and dust of external air) |
| TV | Humid tropical climate. The combination of temperature equal to or above +20 °C and relative humidity above 80% is observed 12 or more hours a day for a continuous period of more than 2 months (chloride concentration - less than 0.3 mg / m² day, sulfur dioxide - 20–250 mg / m² day). Operating temperature range during operation +1...+40 °C |
For work in rooms with high humidity | |
| TS | Dry tropical climate. The average of the annual absolute maximum air temperatures is above +40 °C (chloride concentration - less than 0.3 mg/m² day, sulfur dioxide - 20–250 mg/m² day). Operating temperature range during operation –10...+50 °С | ||
| ABOUT | General climatic version (except for marine). For macroclimatic regions on land, except for an area with a very cold climate (chloride concentration - 0.3-30 mg / m² day, sulfur dioxide - 20-250 mg / m² day). Operating temperature range during operation –60...+50 °С | ||
| M | Maritime temperate cold climate | ||
| MO | General climatic marine version | ||
| IN | All-climatic execution. For macroclimatic areas on land and at sea, except for an area with a very cold climate (chloride concentration - 0.3–300 mg / m² day, sulfur dioxide - no more than 250 mg / m² day). Operating temperature range during operation –60...+50 °С |
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Special requirements for the material of products, due to low operating temperatures, are imposed by a temperate and cold climate (UHL). Therefore, the main requirement for products intended for operation in regions with UHF1 is that they must be made of materials that retain their properties at temperatures down to –70 ˚С.
It should be understood that products, for example intended for use in temperate areas of location category 1, may also be used in temperate areas of location category 2, 3 or 4, but not vice versa.
Similarly: products labeled UT1.5 can replace products labeled U1, U2, UZ, T1.T2.TZ.
| Execution | Category accommodation |
T air temperature | ||||
| Working | Limit working | |||||
| Max | Min | Medium | Max | Min | ||
| At | 1,2 | +40 | -45 | +10 | +45 | –50 |
| 3 | +40 | –10 | +10 | +45 | –10 | |
| HL | 1,2 | +40 | –60 | +10 | +45 | –60 |
| 3 | +40 | –10 | +10 | +45 | –10 | |
| UHL | 1,2 | +40 | –60 | +10 | +45 | –60 |
| 3 | +40 | –10 | +10 | +45 | –10 | |
| TV | 1,2 | +25 | +1 | +27 | +50 | +1 |
| 3 | +45 | +10 | +20 | +40 | +1 | |
| T, TS | 1,2,3 | +45 | –10 | +27 | +55 | –10 |
| 4 | +45 | +1 | +27 | +55 | +1 | |
| ABOUT | 1,2 | +45 | –60 | +27 | +55 | –60 |
| M | 1 | +40 | –45 | +10 | +45 | –50 |
| TM | 1 | +45 | +1 | +27 | +50 | +1 |
| OM | 1 | +45 | –60 | +27 | +55 | –60 |
| IN | 1 | +45 | –60 | +27 | +55 | –60 |
