What are the key points of electrical design for 6 storey office hotel and star hotel?

First of all, there must be dual power supplies, either two independent mains, or diesel fuel (there are fire pumps, fans, etc. should not use EPS as a backup).

And then. 1.Emergency lighting can be set up, refer to the relevant specifications, pay attention to evacuation lighting for 30min, fire control room, power distribution room, weak current room, fire fan and pump room and other places for fire personnel to continue to work after the fire standby lighting should last 180min

2.Automatic fire alarm system: determine the protection level of the fire alarm system according to the nature of the building.

There are requirements for fire linkage, such as smoke exhaust fans, fire pumps, etc., which are also a reference (for plumbing professionals to choose according to their specifications); If the water is sprayed automatically, the fire alarm probe must be used, and special parts such as the kitchen need to be equipped with temperature detectors, and local gas parts need to be added with gas detection alarms.

3.Broadcasting: The hotel should set up a dual-purpose broadcasting system in ordinary times and in case of fire, and when a fire occurs, the broadcast will automatically switch to a broadcasting system controlled by the control room.

Finally, let's talk about power distribution: according to the specification, the fire load of the 6-storey hotel should be level two, dual power supply, and the end distribution box uses ATSE (dual power transfer switch) to cast each other; Fire pumps and fans are provided by the plumbing profession for location and load distribution, pumps and fans should be equipped with contactors and thermal relays for power distribution, which is convenient for controlling and protecting the motor, and the selection of contactors and thermal relays can be carried out with reference to the motor matching table provided by the manufacturer; The fire load should be supplied by a separate distribution circuit, and the laying method is not mixed with other ordinary electricity, but because of the limited conditions, the metal bridge can be separated by a partition in the middle (not suitable for use).

That's all I can think of for the time being, anyway, it's to comply with national norms, that is, whether you can find it, whether you remember the next question.

Fire fans, water pumps, etc., fire protection is generally two power supplies, one is the working power supply, and the other is the backup power supply.

If it is a dual-control switch, the entrance is placed at both ends, and the corridor is relatively long, and the position of the dual-control switch can be set according to the actual situation. If it is a touch or voice switch, it can be placed in the position corresponding to the lamp.

Centralized control can be placed at the service desk (hotel), reception desk (office building). Emergency light switches are generally placed separately from ordinary light switches, and should be more distinct.

General lighting and emergency lighting are controlled separately.

The place of the door, so that it can be found without lights, and it is difficult to find it in other places.

1-star hotel strong current system design scheme.

Project Overview. The project has 19 floors above ground, a total height of 76m above ground, and 2 floors underground, covering an area of 7,000 square meters and a total construction area of 36,000 square meters. It integrates guest rooms, dining and office rooms, and is a modern building with a high degree of integration.

Design content. 1) Power distribution design:

2) Normal lighting and accident lighting design;

3) Normal power and accident power design;

4) Design of lightning protection and grounding system.

Power supply and distribution system.

High voltage power supply. The project is designed according to the first-level load, using two LOKV power supply from different substations of the power supply bureau, the power supply line adopts the cable direct burial method, the two LOKV power supply is used and one is standby, and the two power supplies can load 100% of the load through the mother connection. When one of them fails, manual switching is realized through the switching device in the distribution room.

Location of the power distribution station.

Considering the load distribution of the whole hotel, make full use of the hotel space, and set up the hotel's main power distribution room on the basement floor, which is divided into five parts: switch station, high-voltage power distribution room, low-voltage power distribution room, high-voltage control room and duty room.

Low-voltage power distribution. The low-voltage power supply line adopts a hybrid distribution mode of radial and trunk wires, and the trunk lines are dense bus bars and flame-retardant cables. The power supply system is a three-phase five-wire TN-S system. The low-pressure operation mode is a single bus segmented operation, which is connected by an ME1000 air switch.

In order to meet the fire protection requirements of high-rise buildings and improve the overload capacity of the transformer, the hotel selected two 1600kVA dry-type transformers, the load rate of the transformer is usually maintained at about 70%, and only one of them is operated when the load rate is low, so as to reduce the loss of the transformer.

I have dealt with a number of international hotel management companies, and each hotel company's requirements for electrical aspects are either very common and can be met by domestic specifications, or they have their own requirements, each of which is different. These differences are basically reflected in some details, such as some hotel management companies will require the generator** range to extend to the lighting and air conditioning and sockets in the office area, while others do not. This difference alone will vary greatly from design to investment.

In addition, some hotels have strict requirements for the illumination of banquet halls, conference rooms, and public places, while others appear to be average.

In terms of fire protection, some hotels require that the water flow switch of the sprinkler system can be linked to broadcast, while some do not, and some only require that they comply with domestic regulations.

The same is true for guest rooms, some require that the lighting in the guest room be controlled by the room control system, while others do not.

Moreover, in the public area of the hotel, the general owner will hire a lighting design consultant, through the cooperation of the lighting design consultant and the interior decoration designer, to make a very complete set of public area lighting design scheme, including lighting concept, lighting design, circuit design, lamp selection, etc., so the function of the electrical designer in the lighting is power distribution, there is not much room to play.

After the hotel is completed, it will be handed over to the hotel management company for business, so the owner will generally respect the opinion of the hotel company, so the electrical engineer can play a role in the transmission and distribution system, and the public area is basically based on the owner's opinion.

Of course, there must be many things that can be done if you want to do a good job, and the simplest thing is that there are many details to consider, such as the cable laying method of the substation and distribution station, whether it will contradict ventilation, fire protection, and lighting; For example, whether the laying routes of cables, busbars, and bridges have been coordinated with the building structure, and whether they can meet the user's requirements for space; For example, whether the capacity selection of transformers and generators is reasonable, which is safe and economical; For example, whether the choice of wire is reasonable; For example, the selection of components for the distribution box and so on.

I am also engaged in technology, but also design, understand that the main focus of the designer is the composition of the system, and most of us will not be keen on the system, but focus on a lot of details, the designer's reputation in the project is also in a lot of details.

In the later stage of the decoration of the hotel project, and after the hotel management company began to take over, there will be a lot of modifications, at this time it will be seen that the adaptability of the electrical design, it cannot be said that the strain is not good, but the rainy day is what every designer should do.

In the final stage of a hotel project, there are usually a lot of electrical matters, and this is where the evaluation of the designer begins.

Therefore, it is a bit difficult to make a universal satisfaction version.

You can refer to the building electrical design code, which is available in the library search. Personally, I think it's better to bypass, in case the bathroom leaks, there will be no hidden dangers. But if it is threaded, it should not matter.

Someone on the Internet asked this question ......You look at other people's.

There are two safety exits on the first to fifth floors of the hotel, and there is only one evacuation staircase in the sixth village. No, the irregularities are not good for you.

1. The importance of office buildings.

In the design of buildings, they are divided into three categories for design. Office buildings of different importance have different requirements in terms of design life and fire rating.

1) The first class of buildings is suitable for particularly important office buildings, and the service life of the general design is 50-100 years, and the fire rating is Class I.

2) Class II buildings are suitable for important office buildings, with a design service life of 50 years and a fire rating of not less than Class II.

3) The three types of buildings are suitable for ordinary office buildings, with a design service life of 25-50 years and a fire protection level of not less than Class II.

2. The office building is designed according to the different functions and building scales to design the functional partitions inside the office building, which are usually divided into three large functional partitions. Public space, office space, and service space are the three spaces that an office building must have.

The office building design code stipulates that the elevator should be designed for office buildings with six floors and more than six floors, and the elevator used in the office building with a total height of more than 75 meters should be partitioned or layered to set up and use. In addition to elevators, office buildings should also have indoor staircases and outdoor fire escapes.

There are more than 27,000 building codes for the design of general office buildings with foundation pits, foundations, basements, steel bars, concrete, ground, masonry, plastering, decoration, doors and windows, electrical, HVAC, water supply, waterproofing, fire protection, roofing, energy saving, barrier-free, weak electricity, fire protection and some local standards and requirements.

Office Building Design Code (General Design Code):

1. Regarding elevators, it is stipulated that elevators must be installed in office buildings with more than five floors (inclusive), and one elevator must be installed for every 5,000 square meters of construction area. For high-rise office buildings, the floors should be staggered when the elevator is idle to improve response efficiency.

2. Regarding doors and windows, doors and windows should ensure that the air tightness is intact, and the functions of heat insulation, sound insulation, ventilation and so on are normal. The high-rise glass curtain wall has its own cleaning function, and the low-rise windows are equipped with safety protection measures. The height of the door shall not be less than one meter, and the width shall not be less than one meter.

3. Regarding the net height, according to the classification of office buildings, the minimum values of the clear height in the office of Class I, Class II and Class III office buildings are meters, meters and meters respectively, the clear height of the corridor shall not be less than meters, and the net height of the storage room shall not be less than 2 meters.

Fourth, about the corridor, the most important point of attention is the fire evacuation requirements, so the minimum width of the corridor is required, generally according to the length of the corridor and the single-sided and double-sided layout of the room. The length of the general corridor is less than or equal to 40 meters, and the minimum width of the single-sided and double-sided cloth room is meters and meters in turn; If the length is greater than 40 meters, the minimum clear width of the single-sided and double-sided cloth room is meters and meters.

Building Codes.

It's more. If it's just an office building, you'll need to check out these codes:

1. Fire protection code for building design.

2. Office building design code.

3. General rules for the design of civil buildings (there are specifications for toilets) If it is a high-rise building, it also involves the fire protection code for high-rise buildings.

It's basically enough to make a plan. If it is an actual project, it is also required to have local urban planning regulations.