Soal Instalasi Penerangan Listrik Kelas Xii Semester 6

The correct answer is "Batang". The given image represents an electrode in the shape of a rod or a cylindrical shape. This can be inferred from the options provided, where "Batang" is the only option that matches the description of a rod-like shape. Other options like "Pita" (strip), "Tabung" (tube), "Pelat" (plate), and "Pilin" (coil) do not accurately represent the shape of the electrode in the image.

The correct answer is "Batang" because the question states that the electrode is made of iron pipe and steel profile. "Batang" in English means "rod" or "bar", which is a long, slender piece of metal. Therefore, it is reasonable to assume that the electrode is in the form of a rod or bar.

Option 1 is the correct answer because it is the only option that mentions a material that can be used for making a grounding mesh. Without any additional information about the other options, it can be inferred that they do not mention suitable materials for making a grounding mesh.

The motor 3 fasa does not require neutral grounding because it is a three-phase motor. Three-phase motors are designed to operate without a neutral connection and do not require grounding for their proper functioning. On the other hand, alternators, power transformers, distribution panels, and generators typically require neutral grounding to ensure safety and proper operation.

The correct answer is "Pita." The image below shows the installation of electrodes in the form of a strip.

The image below is used for connecting the grounding wire with the Arde.

A loose connection can cause overheating and arcing, which can lead to a fire.

The purpose of a grounding system is to ensure the safety of people from electric shocks, protect electrical equipment, and provide a path for lightning strikes to dissipate energy into the ground. However, preventing lightning strikes is not one of the objectives of a grounding system.

The factors that affect the specific resistance of soil are temperature, characteristics of the soil material, moisture content, and soil position. Soil position refers to the location or placement of the soil, such as whether it is on a slope or flat ground. The position of the soil does not directly influence its specific resistance, unlike the other factors mentioned.

The given options are different types of grounding schemes. The correct answer, TN - C - Terra, is not a valid grounding scheme. TN-C (Terra Neutral - Combined) is a type of grounding scheme where the neutral and protective earth are combined at the source of supply. However, adding "Terra" to TN-C is not a recognized or standard grounding scheme.

Splitzen pada instalasi penyalur petir berfungsi sebagai penangkap petir. Splitzen adalah komponen yang dirancang untuk menarik petir dan mengalirkannya ke tanah dengan aman. Fungsi utama splitzen adalah untuk melindungi bangunan dan sistem listrik dari kerusakan yang disebabkan oleh petir. Splitzen bekerja dengan menangkap muatan listrik yang ada di awan petir dan mengalirkannya melalui kabel grounding ke tanah, sehingga mencegah arus petir masuk ke dalam bangunan dan merusaknya.

Instalasi penyalur petir refers to the installation that directs or channels lightning current. This installation is designed to safely conduct the lightning current from the point of strike to the ground, reducing the risk of damage or harm caused by lightning strikes.

The resistance between the soil and the grounding equipment can affect the measurement of soil resistance. This is because the contact resistance between the soil and the grounding equipment can introduce additional resistance to the overall measurement. Therefore, even though theoretically the resistance of the soil should be zero, in practice, the contact resistance can result in a non-zero measured resistance. This is why the resistance of the soil is not proven to be zero in practice.

The correct answer is "Pita" because it is stated in the question that the electrode is typically shallowly implanted, and a strip-shaped electrode (pita) would be more suitable for this purpose compared to other shapes like a rod, tube, plate, or coil.

The correct answer is "Sistem pentanahan" because it refers to the grounding system that protects electrical devices from electrical surges or leakage current. Grounding helps to divert excess electricity safely into the ground, preventing damage to the devices and reducing the risk of electrical shock or fire hazards.

The given options are all factors that can determine whether direct or indirect contact with electrical installations is dangerous or not. However, the only option that does not determine the danger level is "Tempat" which means "Place" in English. The danger level of direct or indirect contact with electrical installations is determined by factors such as voltage, current, time, and the condition of the human body. The place where the contact occurs does not affect the danger level.

The given answer is "Semua peralatan rumah tangga yang terbuat dari besi" (All household appliances made of iron) should not be grounded. This is because household appliances made of iron are not typically conductive materials that can carry electrical charges or pose a risk of electric shock. Grounding is necessary for parts made of metal, discharge of electrical charges, lightning rods, and the neutral point of transformers or generators.

The given answer "batang tunggal" is the correct answer because the question is asking for the formula used to find the grounding resistance. Among the options provided, "batang tunggal" is the only one that represents a single rod, which is commonly used for grounding systems. The other options such as "berbentuk pita" (strip), "batang ganda" (double rod), "berbentuk plat" (plate), and "berbentuk plat ganda" (double plate) do not represent a single rod and are not commonly used for grounding resistance calculations.

The other household appliances listed, such as mesin cuci (washing machine), aquarium, computer, and kulkas (refrigerator), need to be grounded for safety reasons. Grounding helps to protect against electrical shocks and prevents damage to the appliances. However, air conditioning does not necessarily need to be grounded as it typically does not pose the same level of risk as the other appliances.

The given answer, "Bagian pembuangan muatan listrik" (Discharge of electrical charges), is the only option that does not belong to the list of things that need to be grounded. The other options listed are all examples of items or components that need to be grounded for safety reasons.