【 Weak current College 】 high-rise office building emergency lighting design skills---Power By 【 China power house network 】

1, emergency lighting and electricity metering 1.1, emergency lighting settings
In order to address the emergency disaster (especially fires) or emergency evacuation in the downstairs, under the fire safety design of tall building code GB50045-95, the civil construction electrical design code JGJ/T16-92 and other relevant norms, in high-rise office building in the following areas should be set for emergency lighting:
(1) the evacuation of the aisle every 20m Department and evacuation aisle turn;
(2) stairs staircase, smoke, fire before the Chamber and its former cab, plus former room and refuge layer (room);
(3) distribution, eliminate control room, the fire pump room, smoke House, battery room, own generator room, phone and total engine room fires still need to adhere to the work of other rooms;
(4) in the lobby, restaurant, function rooms, and other personnel-intensive sites.
Although the specification on high-rise office building, Office building of rental units in the need for emergency lighting is not clearly defined, but the author believes in high-rise office building, Office building conference rooms and the room is large, open more offices should set emergency lighting equipment, at least in the room to the evacuation of the door near the aisle. Because in case of fire, it is in a nervous, upset, poor sense of direction. This opens the door of the Office, especially at night, it is difficult to quickly find access to the evacuation of the channel's door, causing tensions, chaotic scenes, causing people to accidents. In the room's door leading to the evacuation channels, set near the emergency lighting can play a role of a boot, lighting. With the rapid development of market economy, high-rise office buildings, office buildings and other buildings at night to work overtime in more and more, therefore reasonable to set fire emergency lighting becomes even more important.
1.2, leasing household emergency lighting distribution
Press room or floor-unit rental building, in order to manage and use for it, usually within each rental room, a separate set of distribution board rental households separate measurement, its interior emergency lighting is also included. While the author holds an emergency fire emergency lighting system, should be determined by the public emergency lighting distribution box power supply and measure. The reason for this is:
(1) according to the previously described, in the vicinity of these rental office door, you should set the emergency lighting and emergency lighting regulation by "people" JGJ/T16-92 stipulates: "the emergency evacuation lighting using a battery for emergency lighting, the normal power supply should be received from the General (or regional) disaster prevention dedicated distribution box, only when you do not have conditions can be received from this layer (or district) of the total distribution box, but should be private circuit." Leasing House distribution box is neither this layer (or district) of disaster prevention dedicated distribution box, nor is this layer (or district) of the total distribution box, it should not be set individually by the leasing operators for power distribution Board.
(2) the general distribution of the fire emergency lighting is more dispersed, relatively few, load smaller, often used with emergency light battery fire. Such fire emergency lamp usually needs to be charged. If the charging cable from leasing household distribution box power supply, when the distribution box into the line circuit breaker be anthropogenic turn-off, the charge cable will turn-off, caused by the fire emergency lights battery discharge and bring their own. If you do not recharge or charging up to required time (generally this class comes with battery charging time in the 12 ~ 24h), there are gaps in time, at this point if there is fire, emergency, fire emergency lamp does not light up. Leasing House distribution box general neglect of management so that it is difficult to ensure that fire emergency lighting in fire emergencies and give full play to the role of emergency response.
1.3, leasing household emergency lighting billing
Emergency lighting by public lighting distribution box distribution and metering, emergency lighting and located at the rental office, is usually a reasonable property charge shipping lines. Leasing indoor these emergency lighting luminaires usually requires charging cable for float, just stealing prone, often cause conflicts with the owners of the property. For possible larceny (author of the design also experienced similar problems), taking into account these emergency lighting is spread out in all rental office, therefore prohibit the charging of emergency lighting, access to rental office is not realistic. Since these fewer emergency lighting luminaires and dispersed, and generally in fire emergencies only works, it takes two-wire power supply makes it usually does not light, fire automatically when a power failure. Peacetime emergency lighting luminaires with battery is in a floating charge status, battery charging line current is smaller. Fire-functional power is off, the emergency lighting luminaires with battery. So whatever the usual or fire, these emergency lighting electricity consumption is very small, through the power supply to the public of the emergency lighting luminaires for emergency lighting distribution box for electricity metering and analysis you can determine whether someone was stealing.　　Thus, through the correct ways and means to resolve. 2, emergency lighting distribution circuit breaker
In the design of emergency lighting distribution system, be aware that comes with battery emergency lighting power distribution mode. General distribution to comes with battery emergency lighting is divided into two forms: one is a two-wire distribution forms, comes with battery emergency lighting luminaires usually is not lit, the battery is in a floating State, fire automatic light; the other is a three-wire system distribution forms, comes with battery emergency lighting luminaires usually can switch control, the batteries are in the floating State, fire automatically when lit, the general public sidewalk, places for the emergency lighting is mostly in the form of this distribution. But no matter what form, must have a charging cable.