In the electrical design, a lamp is used for both lighting and emergency purposes, what is the wirin

Ordinary lighting has a live wire and a neutral line and a grounding wire, set up a switch on the live wire, you can control the working state of the lamp, emergency lighting (lamp with battery and emergency controller) in addition to the above-mentioned wires, also need to add a battery charging line, this line is generally drawn from the other control switch, usually uninterrupted, will not be controlled by the general lighting control box circuit control switch and the on-site wall switch. When the charging cable switch is powered off, the emergency light is lit. This emergency lighting mode is usually called the decentralized emergency lighting system, now the more important building, the whole lighting system is powered by dual power supply, so as to increase the reliability of power supply, as long as there is any circuit power supply, the emergency lights are working in the normal lighting state, only when the two power supplies are out of power or in the case of fire cutting non-fire power supply, the charging cable also loses power, the emergency light works in the emergency state.

I have done it before, for example, there is a set of light panels in the hallway, and one out of every four lights is used for emergency lighting and general lighting. When drawing, a separate circuit for two purposes, the power supply is drawn from the emergency box; While other general lighting is derived from the lighting box.

As a result, the emergency dual-use kind is lit no matter when it is normal or when an accident occurs, so as to achieve a dual-use effect;

And the ordinary kind, once there is an accident and the power is cut off, it goes out.

I haven't seen this thing, according to what you said, the emergency power supply is also connected to the lighting line, and when the power is off, the emergency power supply supplies power to this lamp.

Let's see what others have to say.

What are the requirements for the quantity of emergency lights when they are installed together with general lighting.

When the emergency lighting is installed together with the general lighting, what are the requirements for the number Hello, dear, ruler <>

Under normal circumstances, the fire emergency light should be installed about 2 meters from the ground. There are no specific requirements for the quantity, in general there should be one for each exit, one at each end of the safe passage, one for each floor in the downward direction of the stairs, etc. Do not rush through 25 lamps and lanterns in the morning, China's fire law stipulates that an emergency lighting centralized power supply can not be connected to more than 25 emergency lighting fixtures at the same time, and the current of the centralized power supply of emergency lighting shall not be less than 15 amperes, because a power supply, if it is connected to too many lighting fixtures, then when the power supply is damaged or a power outage, the power outage range will be too large, resulting in the impact of emergency escape, hoping to help you!

Yes, the emergency lighting has a dual power supply and also requires a battery.

The emergency lighting fixture is composed of several parts, such as the light source, the light source driver, the rectifier, the inverter, the battery pack, and the sign lamp shell. Normally, 36V drives the light source to illuminate normally through the light source driver, and at the same time replenishes the battery pack with electric energy through the rectifier.

Even with the lighting turned off after hours, the rectifier still works in a state of charge so that the battery pack is always in full combat readiness. In case of emergency, when the mains power suddenly stops, the inverter will automatically start the inverter circuit to convert the low-voltage electrical energy of the battery pack into high-voltage electrical energy, and drive the light source to continue illumination.

08 Civil regulations: 1 8 The self-starting of the generator set shall comply with the following provisions: 1 The unit shall be in a standing starting state.

A class of high-rise buildings and automatic fire alarm system protection objects classified as a class of building generator sets, should be equipped with automatic start device, when the mains power is interrupted, the unit should be started immediately, and should be within 30s of power supply. When it is difficult to use automatic starting, the generator set of Class II high-rise buildings and Class II protection object buildings can use manual starting devices. In this dual power supply + battery approach, the battery is used as a backup power source (diesel generator) for conversion time.

When the normal mains power is out, the diesel generator will start for a certain period of time (within 30s or manually), and the battery will function during this starting time. If the backup power supply is not a diesel generator, the battery can be eliminated if the conversion time can meet the following requirements. 1. After the emergency lighting is stopped by the normal power supply, the power supply conversion time of the emergency power supply shall meet the following requirements:

1) Standby lighting should not be greater than 5s, and financial and commercial trading venues should not be greater than 1 5s; 2) Evacuation lighting should not be greater than 5s.

The emergency lighting adopts fire-resistant wiring, which is a requirement, and the power is not interrupted in case of fire. This makes sense to have a dual power supply. There is no need for fire-resistant wiring to ignite in the event of a power failure. In my opinion, this should be the case.

Hello! A-type emergency lighting, buried slip centralized electric bend, Qilayuan control device to the lamp, the wire connection needs to be side-legged, and 4 wires should be worn inside JDG. Thereinto; 2 x 36V power cords (WDZN-BYJ-2*, since they are safe voltages, there is no need for a ground wire.

2 communication lines (wdzn-ryjs-2*, note; The communication line is the switch, and the fire control room decides when the emergency light will be on and when it will be off.

Summary. Dear, glad to answer for you! There are three basic wiring methods for lighting distribution networks, which are and radial, trunk and ring.

1.The so-called radial distribution mode is to draw a special line from the 6 10kV bus of the regional substation, which is directly connected to the distribution substation of the telecommunications bureau station, and does not connect other loads along the line, and there is no connection between the distribution substations.

There are three basic wiring methods for lighting distribution networks, and they are and pro, and we are happy to answer for you! There are three basic wiring methods for lighting distribution networks, which are and radial, trunk and ring. 1.

The so-called radial distribution method is a special line from the 6 10kV female rotten blind omen line of the regional substation, which is directly connected to the distribution substation of the telecommunications bureau station, and there is no connection to other loads along the line, and the distribution substations are not connected.

2.The so-called trunk distribution mode refers to the laying of various high-voltage trunk lines along the urban streets led by the total step-down substation, and the substations of small and medium-sized enterprises directly introduce branch line power supply from the trunk line. 3.

The advantage of the ring-type distribution party Qidou ring system is that the operation is flexible, the reliability of power supply is quietly high, when the delay of the line anywhere there is a fault, as long as the fault adjacent to the two sides of the isolation switch is disconnected, cut off the fault point, the power supply can be restored. In order to avoid the impact of a fault on the ring line affecting the entire power grid, an isolation switch in the ring line is usually disconnected to make the ring line in an "open loop" state.

There are three basic wiring methods for lighting distribution networks, and they are and

Radial wiring There are more wires for radial wiring, more low-voltage distribution circuits are occupied, the consumption of non-ferrous metals is large, and the cost of investment is higher, but when the line fails, the scope of the power outage is smaller. Therefore, for the more important negative grip lotus, radial wiring is mostly used.

Yes. The voltage between any phase wire and the neutral line in the three live wires is called phase voltage UA, UB, UC, and the voltage between the three phase wires and the neutral wire is 220 volts in China's low-voltage power supply system. The voltage between the three phase wires is called the line voltage.

In a symmetrical three-phase system, the magnitude of the line voltage is a multiple of the phase voltage. In China's low-voltage power supply system, the line voltage is 380 volts. Low-voltage distribution lines generally use three phase wires (live wires) and one neutral wire (ground wire) to transmit electric energy.

1] The star connection of the three-phase voltage is to connect one end of each phase power supply or load to one point, and the other end of them is used as a lead-out wire, which is the three phase wires of the three-phase voltage. For the star connection, the midpoint (called the neutral point) can be drawn out as a neutral line, forming a three-phase four-wire system. It can also be dispersed without leading out, forming a three-phase three-wire system.

Of course, with or without a neutral wire, you can add a ground wire to become a three-phase five-wire system or a three-phase four-wire system, respectively. The triangle connection method of three-phase voltage is to connect each phase power supply or negative bump hand load end to end in turn, and lead out each connected point as the three phase wires of three-phase voltage. The triangular connection has no neutral point and cannot lead to a neutral line, so there is only a three-phase laughing three-wire system.

When the ground wire is added, it becomes a three-phase four-wire system.

Answer] :d According to the "Fire Emergency Lighting and Socks Cavity Dispersion Indication System" GB 17945-20103 15, the centralized power supply centralized control system is composed of centralized control fire emergency lamps, emergency lighting controllers, emergency lighting centralized power supply, emergency lighting distribution telegraph lead shirt device and related accessories. The answer to this question is d.