How to connect two 12V batteries

　　Author ：Iflowpower – Portable Power Station Supplier

Emergency lighting refers to the normal illumination system without normal lighting, it is not necessary to provide normal illumination, and to ensure that the evacuation channel is effectively identified and used, ensuring the safety of people in potential hazards and ensuring Lighting continues to be performed in normal activities. It includes: evacuation lighting, safety lighting and spare lighting. There are many ways to design emergency lighting, but how scientific and perfectly designed in specific projects is a very important thing.

For some of the emergency lighting fixtures that do not have a fire automatic alarm system and the installed emergency lighting fixtures, the designer often uses the lamp of the self-contained battery as emergency lighting 1, and the battery emergency lighting control principle with battery The control of the emergency light is very simple: now this light is treated at normal lighting, there is a charging line to pick up the upper end of the lighting control switch. In this way, it is usually controlled as normal lighting. When the market is powered off, the emergency light will automatically light.

Usually maintenance, every time you have a disconnection of the lighting distribution box, the emergency light is lit, the battery discharge is activated. The battery is discharged, and the circuit breaker can be closed. With battery emergency lamp wiring diagram, despite the control of emergency lighting, the principle is the same, as shown in FIG.

The contact is closed, the contactor is complete, the lamp is lit; when automatic The contactor completes self-locking, the lamp lights up. After turning off the light button S2, the contactor coil is absent, and its normally opens the contact, the controlled light is off. 2.

Control and wiring evacuation indication of emergency lighting fixtures with automatic alarm system is usually common in actual engineering, so it does not have automatic lighting problems, as described above, mean normal lighting emergency lighting Lamps, due to its switching control, its status is uncertain, asking them all to light up in fire. With battery emergency light wiring diagram 3. Common control and wiring of emergency lighting fixtures and wiring of self-contained battery emergency lighting fixtures are shown in Figure 2.

Compared to the normal lighting wiring, in FIG. 2 and FIG. 3 are first increasing a control line in the outflow loop and the main contact with the AC contactor therebetween, and the charging line is protected with a fuse.

With battery emergency light wiring diagram 4, the control and wiring of emergency lighting fixtures without automatic alarm system For buildings without fire automatic alarm systems, emergency lighting fixtures in the fire, there is a debate in major forums, also Very confused designers. First of all, we must clear a concept, fire emergency lamps require mandatory lightning instead of automatic mandatory light, only clear this, forces for the emergency lights for emergency lightless alarm systems, meaning. Therefore, for emergency lamps without fire automatic alarm systems, we must make it forced to illuminate during the fire, and of course the relevant staff can achieve the forced light of emergency lighting by setting the power button set in the distribution box.

However, the relevant staff is not necessarily just in this building, when the staff runs to the distribution box to the building to force these emergency lighting fixtures, it may be too late, so for automatic automatic The construction of the alarm system, the mandatory light of fire emergency lighting fixtures, the most reliable, is carried out by ordinary staff in the building. Here, in connection with this idea, the lighting of emergency lighting fixtures without fire automatic alarm system is discussed below, as shown below: Battery emergency light wiring map detailed in Figure 4 Emergency lamp adopts energy-saving self-extinguishing switch (electronic touch timing Switches, vibration timing switches, sound control timing switches, usually by energy saving switching, when fire emergency, staff can force emergency lighting fixtures to make emergency lighting, in this building Ordinary personnel can also enhance the emergency lighting fixture by pressing the emergency power button S3 in the consted position of the building, and when the emergency situation needs to be released, the staff is in accordance with the dispensing of the dispensing box. Button S2 can be.

When the designer does not use the energy-saving self-extinguishing switch, when the ordinary panel switch control is used as a luminated lighting, it is only necessary to change the timing switch in the image into a normal panel switch. 1, two 12 volts battery, in series, can form a 24 volt battery. The specific method is: the negative electrode of the fines and the positive electrode of the battery, the negative electrode of the positive electrode and the battery of the fines is 24V.

2, pay attention to: 1, the capacity of the two batters should be equal. 2, the newness of the two batters should also be consistent, otherwise it will affect the battery life of the battery. Expanding data The circuit components are connected to each other along a single path, and only two components are connected to each node.

This connection is called series. Circuit connected in series is called a series circuit. The current flowing through each resistor is equal in the series circuit.

Because each section of the same branch in the DC circuit has the same current intensity. .