If the wiring is too big the electricity can't get to the bulb cuz its too long
Loads
We will provide the electrical circuit with a pathway through our body to the ground. The shock could be large enough to kill us, or disrupt the rhythm of our heart beats.
A short circuit is one that is characterized by extremely low resistance. This will result in the extremely dramatic increase of current. High current will flow until a safety device opens the circuit, or the weakest link in it burns out. And one of the two usually occurs in a moment or two.==Short Circuit happens when the cables of the electrical appliances are worn out or it's not connected properly,a short circuit may occure.A short circuit has a very low resistance that almost all electric current flow through it.It'll affect the operation of the electrical appliances.Owing to the heating effect,the excess electric current would produce a large amount of heat,wihout a fuse or a circuit breaker,a fire may be occured when there's a short circuit.
Fuses that Continue to "Blow" after ReplacementANYTIME a fuse blows, AND ESPECIALLY when replacement fuses continue to blow, is an indication of one of two things:There is a SHORT CIRCUIT in that wiring circuit, orThere is too much LOAD on that circuit, usually caused by adding way too much equipment, or equipment that's way too large and draws heavy current that the circuit and fuse were not intended to carry/handle.One of the most common examples/causes of this situation is those fools who add hundreds of watts of sound amplifier equipment to an existing auto electrical circuit. Or, another example is the adding of "light bars" with banks of lights that draw dozens of Amps.The proper way to add massive electrical equipment loads to a vehicle is to also install a dedicated, independent wiring circuit to serve just that added equipment.In your specific case of trailer lighting, I suspect that there is a short somewhere in the circuit, in spite of being installed by a Pro.
When the cables of the electrical appliances are worn out or it's not connected properly,a short circuit may occure.A short circuit has a very low resistance that almost all electric current flow through it.It'll affect the operation of the electrical appliances.Owing to the heating effect,the excess electric current would produce a large amount of heat,wihout a fuse or a circuit breaker,a fire may be occured when there's a short circuit.
If you are talking about the circuits load being to large for the circuits capacity, then the circuits over current or over load protection will come into effect. The fault will open the circuit, thereby isolating the load from the electrical supply source.
If you have an electrical fire, it would be a good idea to turn off the electricity if you have access to the fuse box or circuit breaker panel; other than that, use a fire extinguisher if the fire is not too large. If the fire is large, then only the fire department can deal with it.
All electrical circuits produce a magnetic field around the wires when a current is travelling. If we want to generate a large field, we can coil the wire. Such a coil is called a solenoid.
SHORT CIRCUIT AND OVERLOADElectricity energy is supplied into homes by pairs of insulated copper wires placed on walls and ceilings.Not much heat is produced in the wires because copper has low resistivity.However,if the current is very large,the wires may become hot enough to melt or burn the insulation and start a fire.This large current may be caused either by a short circuit or by overloading the circuit. 2. CIRCUIT PROTECTORThe panel board in your home where electrical energy is distributed through different circuits contains fuses or has a circuit breaker system.Each circuit branching out from the panel is connected in series to a fuse or circuit breaker.Fuse and circuit breaker are safety devices that brake the circuit whenever overload or short occurs by breaking the circuit of fire are prevented.
There are no advantages or disadvantages over which type of junction box to be used on electrical wiring. As long as the junction box is of an approved type (CSA or UL approved). It is cost or location which dictates which boxes will be used. PVC boxes for home wiring are the cheapest. Aluminium or steel are usually used in rigid or EMT conduit systems. PVC again when the conduit system involves underground wiring. In large electrical installations it is the electrical engineer that states what the conduit system type is and what type of electrical junction boxes that must be used.
Steppers are small devices in electrical circuits, which move "bit by bit" or "step by step"- hence their name. They can be found in a large array of circuits and convert electric pulses into small stepping movements.
Answer 1Not unless the circuit was built for a 15 amp load. Too large of a load in an electrical circuit can cause a fire. Answer 2 - More ExplanationThe following answer is a cut and paste from my previous answer to several similar questions.Fuses That "Blow" RepeatedlyWithout being able to "hands on" troubleshoot the circuit served by the repeatedly blowing fuse, none of us can identify the specific cause/defect which is causing your problem.Therefore, the following generic answer can be applied to any electrical circuit, whether in a vehicle, or in a building, or whether alternating current [AC] or direct current [DC].Fuses [and Circuit Breakers] are safety devices designed and installed in electrical circuits TO PROTECT the conductors [wires] and other components from short circuit conditions and/or overload conditions which cause an extremely large flow of electrical current [measured in Amperes], which causes overheating of the conductors that results in damage to the insulation and the conductors.And in a worst case scenario, the probability of a FIRE which could destroy the vehicle, house, or other structure in which the circuit is located.When a fuse or Circuit Breaker [and replacement fuses, or "tripping" Circuit Breakers] "blow," especially if it happens repeatedly, is an indication of an UNSAFE CONDITION in that circuit, usually a short.The fuse or circuit breaker is doing what it was designed, intended, and installed to do, protect the conductors and components of the circuit which it serves.The proper "fix" is for a qualified technician, who knows what he or she is doing, to troubleshoot the involved circuit, find and identify the defect, and make proper repair [s], BEFORE replacing the fuse again [with the properly sized fuse or before resetting a circuit breaker].Some ignorant people will suggest installing a larger fuse or breaker to solve the problem, BUT that will only increase the hazard, not correct it. Do not follow "bad" advice by installing a larger fuse in a misguided attempt to correct the problem. To install an over-sized fuse would almost guarantee damage to the wiring and an electrical system fire.