Elevator national standard national mandatory standard

By taking appropriate vibration reduction, absorption, sound insulation and noise reduction measures, and reducing and blocking the impact of low-frequency vibration of the elevator through tapering design, the indoor elevator noise A sound level for residents can be reduced to less than 35dB. The standards are as follows:?

1. Comply with the quality standards of "Elevator Technical Conditions" and "Elevator Manufacturing and Installation Safety Code";?

2. Comply with "Residential Design Code", GBJ118- The architectural design standards of the 1988 "Code for Sound Insulation Design of Civil Buildings" stipulate that it should not be higher than 50 decibels during the day and 40 decibels at night;?

3. Requirements for indoor quietness in the "Code for Design of Sound Insulation of Civil Buildings" ; "Acoustic Environment Quality Standards" and "Social Living Environment Noise Emission Standards" stipulate that the indoor noise value of Class A rooms (bedrooms, etc.) in Class I areas is ≤40dB(A) during the day and ≤30dB(A) at night; Class B rooms (except bedrooms) Other rooms) Indoor noise value is ≤45dB(A) during the day and ≤35dB(A) at night;?

4. Due to the low-frequency characteristics of solid sound transmission, in addition to meeting the national environmental noise A sound level standard, especially It is the low-frequency part that must meet certain standards.

This standard sets the A sound level as less than 40dB (A), and the sound level in the entire noise band is less than the NR-30 curve. ?

On March 1, 2010, the national recommended standard "Elevator Technical Conditions" formulated by the General Administration of Quality Supervision, Inspection and Quarantine and the National Standards Committee began to be officially implemented, which clearly stipulates the comfort performance of elevators. It also provides a national standard basis specifically for elevators for the detection of elevator noise. The new standard stipulates that if a passenger elevator has a centrally divided automatic door, the door opening and closing time should not exceed 3.2 seconds.

Overhaul is an update and maintenance based on the original elevator, replacing new parts without changing the specifications and functions of the original elevator, that is, there is no need to replace the original elevator's certificate. ?

Renovation refers to functional upgrades based on the original elevator, such as adding floors, adding functions, changing specifications, replacing systems, etc. That is, the elevators that are equal to the new specifications after modification need to be re-accepted and collected. Elevator certificate.

"Standard Specifications" Conventional standards Currently there are three main categories of standards related to elevator noise:

First, the quality standards of the elevator itself, mainly including "Elevator Technical Conditions", "Elevator Manufacturing and installation safety regulations" etc.

The second is construction standards, which mainly include "Residential Design Code" and "Civil Building Design Sound Insulation Code".

The third is environmental protection standards, including the "Acoustic Environment Quality Standard" and so on.

These three types of standards also have different regulations on the decibel limits for elevator operation:

The product standard stipulates that the sound of the main engine room shall not be higher than 80 decibels, and the sound of the car shall not be higher than 80 decibels. 55 decibels. Building design standards stipulate that the temperature shall not exceed 50 decibels during the day and 40 decibels at night. Environmental protection standards stipulate that it should not be higher than 40 decibels during the day and 30 decibels at night.

Regulatory Standards On October 1, 2008, the country officially promulgated new national standards such as the "Noise Emission Standard for Social Living Environment" (22337-2008) and "Acoustic Environment Quality Standard" (GB3096-2008). Establish clear standards for indoor solid noise (low-frequency noise) emissions.

Before this, elevator noise was indeed a headache. Because according to the original standards, the noise of elevators generally does not exceed the standard. No matter how the victims complain, the competent government departments have no basis to rely on, so it is difficult to deal with them. Now that there are laws to follow, victims can complain to government departments and they will surely be satisfactorily resolved.

The competent government departments are the special equipment management unit of the Technical Supervision Bureau and the petition and complaint unit of the Environmental Protection Bureau.

The Special Equipment Management Unit of the Technical Supervision Bureau is responsible for issuing elevator operating licenses. If they fail to meet national standards, they will order the relevant units to make corrections. If they do not make corrections, they will revoke the elevator operating license in accordance with laws and regulations; environmental protection The Bureau is a specialized unit of the government for environmental law enforcement, and it is natural that it will enforce the law in accordance with the law.

The country with the highest applicable standards has made relevant regulations on elevator noise standards. "According to the latest elevator noise standards formulated in 2003, the elevator noise value measured in the elevator machine room should be ≤80 decibels."

At present, most domestic brands of elevator noise can be controlled within 60-75 decibels, which can meet national standards.

Elevators affected by noise also include the current mainstream "frequency modulation and voltage regulation elevators", "machine room-less elevators" and the currently least noisy "permanent magnet synchronous elevators".

Extended information:

"Safety Specifications for Elevator Manufacturing and Installation" refers to the formulation of safety specifications for passenger elevators and freight elevators from the perspective of protecting personnel and goods to prevent incidents involving personnel, Risk of accidents related to elevator maintenance or emergency operations.

Not only expresses the basic safety requirements of the elevator directive, but also describes the minimum regulatory requirements for the installation of elevators in buildings or structures.

Provides nationally unified technical basis and safety requirements for the manufacture, installation and inspection of passenger elevators and freight elevators, including inspections before delivery for use, periodic inspections, and inspections after major modifications or accidents. The content has been stipulated accordingly.

National standards for elevator manufacturing and installation - Baidu Encyclopedia