To pay electricity and electrical appliances in a variety of sizes, depending on the number of Load.8. Grounding, grounding is the use of electrical conductors connected to the circuit, or บริภัณฑ์ไฟฟ้า connected earth firmly fixed. Grounding is intended to reduce the danger that may occur with the person. And reduce the damage to the electrical appliances and electrical system. The main function of the ground there are 2 folds.1. When the pressure beyond the limit voltage of circuit Not so high may make electrical appliances, damaged, and reduce the voltage potential machine electrical equipment or components. Due to the leak. Or to reduce the danger of induced person to touch.2. When electricity leaks into the ground. To reduce the damage of the electric equipment or electric grounding that will help the tool or device to prevent work as designed. The type of grounding are together 3.1. Grounding of electrical (System Grounding).2. Grounding device of electric machine (Equipment Grounding).3. Grounding of the lightning protection system (Lightning Grounding).9. Lightning protection system, a system must be in the electrical system. The standard setup is forced the use of standard IEC primarily consists of ฟ้าผ่าจะ protection system External lightning protection system. Internal lightning protection system and building lightning protection system. Aimed to prevent damage to occur with various electrical systems. And equipment, due to lightning.10. Equipment excerpts or release device circuit equipment excerpts or release device circuit is cut off guard when the circuit does not want to have the electricity flows in the system. Such as the repair and to prevent harm to the system. Due to the use of electricity overload or short circuit, equipment was cut The most of the current is the fuse and circuit breaker (CB.) but the use and the design, installation, use the size and style suitable for the job. Otherwise, the device will not work as designed, such as the size CB high delaminate when born.
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