The purpose of the load line neutral in an electrical circuit is to provide a return path for the current flowing from the load back to the power source, ensuring proper functioning of the circuit and safety of the electrical system.
A power line carries electrical current from the power source to the load, delivering energy for use in homes and businesses. In contrast, a neutral line provides a return path for the current, completing the electrical circuit and ensuring safety by stabilizing the voltage. While the power line typically carries high voltage, the neutral line is grounded to prevent electrical shock and maintain a balanced system.
The neutral line in home electricity completes the circuit by providing a return path for current to flow back to the electrical source. It helps balance the electrical load and provides a reference point for voltage measurements. Without a neutral line, the circuit would not function properly and could pose safety risks.
It does not matter what line in (the phase or neutral) is the fuse. In a closed series circuit current in all areas of the circuit is equal. It's best to put the fuses in both wires (phase and neutral) and even better for each individual device in the chain.
To protect a circuit, we use a fuse or circuit breaker. The fuse or circuit breaker must always be placed in the lineconductor, never in the neutral conductor. So, if we want to completely isolate a circuit from the supply, we must remove the fuse from the line conductor, and open the link in the neutral conductor. A 'link' is a non-fusible metal break point in the neutral.
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I think you probably mean 'lines', rather than 'phases' but, even so, your question is still confusing. However, if you connect any two lines together directly, you will create a line-to-line short circuit fault; if you connect any line and neutral together directly, you will create a line-to-neutral short circuit fault.
In a circuit, the electrical line provides power to the load, which is the device using the electricity. The line carries the electrical current to the load, allowing it to operate. The load consumes the electrical energy provided by the line to perform its intended function.
In a MEN (Multiple Earth Neutral) system, the neutral wire is connected to the earth wire at the switchboard. This is the neutral link. From an electrical point of view the neutral pin and the earth pin in a power socket are at the same potential but from a safety point of view they are different. A residual current device (RCD) (or earth leakage core-balance-relay(ELCBR)) sits in series with both the active and the neutral feed and a leakage from either wire to ground (via a human or water leak in a washing machine etc) will trip the circuit breaker that is in the RCD.Another AnswerFuses or circuit breakers must be inserted into the line conductor, never into the neutral conductor. However, if we need to isolate the circuit, we must place a break in both the line and the neutral conductors. We can achieve this for the line conductor by, for example, removing the fuse. To achieve the same with the neutral conductor, we can open the neutral link, which is simply a short length of conductor inserted between a pair of terminals in the neutral.
line neutral amperage
The fuse will be blown off in case of any fault. But the circuit will not be isolated because of the presence of fuse in nutral line. current will still flow and the line will be so dangerous.
A circuit breaker is a device that opens its contacts in order to open the circuit in case of current overload. A differential circuit breaker is a device that opens the circuit in case of leakage (current measured on the phase line is differentthan the current returned to neutral line); therefore protects users from electric shocks.To more understand how it operates, consider the following:Say that your electrical wall outlet is connected to a differential breaker. When plugging let's say a hair dryer to it, the current traveling on the phase line (going into the hair dryer and out to the neutral line of the wall outlet) equals but in reverse direction of the current returned to the neutral line, thus the difference is zero. Now let's say this hair dryer got faulty and fraction of the current coming from the outlet phase line travels through your body and return to earth (considering that you are not electrically isolated from the ground). Thus the current in neutral line is less than the current on phase line; at this moment the difference is not zero and breaker opens to protect you from getting electrocuted.