Explosion-proof control box using environmental requirements choose to install and use place <br> <br> explosion-proof box products directly determine the explosion-proof box can play its excellent explosion-proof performance; explosion-proof control box to choose the right place is the primary security operations Premise. For example, the explosion-proof operation box BT4 level can not be used in the requirements of the BT5 environmental level, the same, in turn, we judge that if we use it clearly.
Explosion-proof operation box environment is natural. In the case where the continuous release source in the environment constitutes a zone 0, the release 1 release source constitutes a zone 1, release 2 release source, and constitutes a zone 2 setting. However, the actual production site has a much larger environment due to the effects of ventilation. For example, outstanding ventilation may make the area of ​​injury occasions negligible and may become less harmful areas. If ventilation is particularly good, it may become a non-harmful occasion. Conversely, if the ventilation is poor, it may expand the area of ​​the area where the injury occurred, and the explosion-proof operation box may become a more harmful area.
Hazardous substances in explosion-proof operation enclosures limit the ventilation status: If there is a dangerous object in the injury situation affecting the ventilation, the scope of the injury situation will be expanded, or it will become a category with higher harm. When considering the effects of dangerous substances, special attention should be paid to the relative density of gas or vapour in pits and pits.
Explosion-proof operation box Under ordinary circumstances, some forced air is used to dilute the explosive dissimilation. The explosion-proof operation box is better than natural ventilation and group forced ventilation.
The result is that the area of ​​injury will be narrowed down to a negligible extent. Maybe it will be a harm, a less sexual area category. Even become a non-harmful occasion.
The classification of injuries is based on the premise of ventilation and assembly of ordinary work. Explosion-proof operation box can be ignored if the damage caused by ventilation assembly can be ignored. If other active standby systems are installed, there is no need to tamper with the classification of injury situations that are affirmed on the premise of ventilation and assembly of ordinary work. However, if the damage caused by ventilation assembly can not be ignored, you should look forward to the expansion of the scope of explosive mixtures without forced ventilation, and also look forward to the frequency and duration of ventilation assembly failures, and to be sure.
Explosion-proof operation box If the ventilating assembly does not show defects or if there is something wrong for a long time, the injury field expanded due to ventilation assembly problems should be included. > If ventilation assembly is defective, it is possible to adopt measures to stop the release of flammable substances. .
The above is the analysis of the use place of the explosion-proof operation box. Use and install the explosion-proof operation box to pay attention to the above points and improve the safety performance!
Explosion-proof operation box environment is natural. In the case where the continuous release source in the environment constitutes a zone 0, the release 1 release source constitutes a zone 1, release 2 release source, and constitutes a zone 2 setting. However, the actual production site has a much larger environment due to the effects of ventilation. For example, outstanding ventilation may make the area of ​​injury occasions negligible and may become less harmful areas. If ventilation is particularly good, it may become a non-harmful occasion. Conversely, if the ventilation is poor, it may expand the area of ​​the area where the injury occurred, and the explosion-proof operation box may become a more harmful area.
Hazardous substances in explosion-proof operation enclosures limit the ventilation status: If there is a dangerous object in the injury situation affecting the ventilation, the scope of the injury situation will be expanded, or it will become a category with higher harm. When considering the effects of dangerous substances, special attention should be paid to the relative density of gas or vapour in pits and pits.
Explosion-proof operation box Under ordinary circumstances, some forced air is used to dilute the explosive dissimilation. The explosion-proof operation box is better than natural ventilation and group forced ventilation.
The result is that the area of ​​injury will be narrowed down to a negligible extent. Maybe it will be a harm, a less sexual area category. Even become a non-harmful occasion.
The classification of injuries is based on the premise of ventilation and assembly of ordinary work. Explosion-proof operation box can be ignored if the damage caused by ventilation assembly can be ignored. If other active standby systems are installed, there is no need to tamper with the classification of injury situations that are affirmed on the premise of ventilation and assembly of ordinary work. However, if the damage caused by ventilation assembly can not be ignored, you should look forward to the expansion of the scope of explosive mixtures without forced ventilation, and also look forward to the frequency and duration of ventilation assembly failures, and to be sure.
Explosion-proof operation box If the ventilating assembly does not show defects or if there is something wrong for a long time, the injury field expanded due to ventilation assembly problems should be included. > If ventilation assembly is defective, it is possible to adopt measures to stop the release of flammable substances. .
The above is the analysis of the use place of the explosion-proof operation box. Use and install the explosion-proof operation box to pay attention to the above points and improve the safety performance!
Prepainted Steel Coil PPGI PPGL
ADVANTAGE & CHARACTERISTICS
1.Much higher adhesion between coating & substrate
2.PE & PVDF paint , high durability & wide applications
3.Compared with stone material , coulde be punched or bent to any shapes
4.Distinct & vivid texture
The prepainted steel sheet in coil is a product obtained by subjecting a hot dipped galvanized steel sheet, and galvalume steel sheet, or an aluminum sheet to a surface chemical treatment (coating) , followed by baking and curing.
- The total thickness of the pre-panted galvanized steel coil is composed of the base steel – coating -primer – top paint – protective layer thickness. The top paint thickness is 15-25μm, and the back paint thickness is 5-20μm. The thinner the base steel thickness, the higher the price of the ppgi steel coil, because the processing cost becomes higher.
- Usually the paint coating material is polyester (PE) and the color of the back paint is white grey. The color can be customized according to the RAL Color card or customer samples. Special patterns can be made, such as wood grain, flower print, camouflage, brick.
1) PPGI also known as prepainted galvanized steel coil and color coated steel coil, with a hot dip zinc coated steel sheet substrate.
2) PPGL also known as prepainted galvalume steel coil, with a galvalume steel sheet as a substrate.
Prepainted Steel Coil,Prepainted Steel Sheet,Prepainted Galvanized Steel,Ppgi Steel Coil
Shandong Wofeng New Material Co., Ltd. , https://www.wofengcoil.com