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Electric shock and burning body is the general risks faced by personnel working in the field of refrigeration and ventilation. Not possible to do the installation work or troubleshooting refrgerasi and HVAC equipment without connecting the equipment to a power source. It is already the responsibility of the technician / mechanic refrigeration and HVAC think of safe work procedures when ...

System Unit System units used in this book is the “International System of Units”, abbreviated SI. There are six basic quantities and units as shown in Table 1. Derived unit can be seen in Table 2. Table 1. Basic Unit Table 2. Derivatives Unit Pressure Each of the force acting on an object’s surface will provide pressure. Similarly, if the ...

Part of an electrical circuit when we touched two-voltage cables, cable phase and neutral wires or grounding wires (ground) simultaneously, as shown in Figure 1.3. Electric current flows from left hand to right hand through the heart of the victim. Figure 1.3 Running electric currents through the human body from hand to hand Earthing wire in the electrification system is ...

Valve in general does not use packing, this is because the leak is small. However, because the fluid that flows in the hydraulic system is always followed by some dirt, fibers, rust, etc., then gradually these valve holes will be clogged, scratched or even leaked. If this happens, it will cause the fluid pressure to drop (drop). For that hydraulic ...

Here is an impact of electric shock as seen from the magnitude of electric current flowing in the human body. Electrical current of 1 miliamper create the sensation of someone, a current of 20 miliamper memungkinkanseseorang can not move, a current of 100 miliamper cause the ventricuar fibrillation (heart pounding), and the current is greater than or equal to 200 ...

By implementing preventive perawatanan procedure correctly, then the damage to the pump can be reduced. Excessive temperature and pump noise can cause damage. If the equipment operates somewhat slower, less energy and less responsive, then it is time to check the amount of flow and pressure in the system. This test should be done at the operating temperature, with a ...