On January 28, 2008, the Ministry of Construction promulgated the "Regulations on the Safety Supervision and Administration of Construction Hoisting Machinery" (Order No. 166 of the Ministry of Construction) stipulates: "Projects that are contracted to two or more construction units according to law, and different construction units are in the same construction. When using multiple tower cranes on site, the construction unit shall coordinate and organize safety measures to prevent tower cranes from colliding with each other." To this end, individual departments or agencies have jointly launched a tower crane anti-collision device or so-called "black box", requiring the purchase of crane machinery property units, and even some places below mandatory marketing, not for the purchase of property rights registration. I believe that forcing the implementation of the "black box" anti-collision measures is a very wrong behavior for the following reasons.
- The proposition is wrong. The installation of anti-collision devices or so-called "black scorpions" can solve the safety problem of tower cranes is a pseudo-science or pseudo-proposition.
First of all, the "installation of 'black box' can track and investigate accidents" is a proposition that does not hold. Because there is currently no national department that uses the data recorded by the "black box" to identify the accident. The reason is: If the accident is identified by the "black box" data, the brand's "black box" must be identified and approved by the national authority before it can be used. Secondly, if the accident can be identified by the "black box" data, it must be installed before the manufacturer leaves the factory, rather than being installed by the user after purchase. The reason is very simple, just like the "black box" on the plane, it is definitely not installed by the user. That is to say, if the installation of "black box" is not the responsibility of the construction site supervision and management agency, but the responsibility of the national product production supervision department, and can only be installed before the product leaves the factory.
Does the installation of tower crane anti-collision device can prevent the collision accident from receiving the expected effect? ​​The technical department and safety supervision organization at the construction site know that the tower crane must formulate a erection plan before installation to determine the safety protection measures including anti-collision measures ( Anti-collision measures are one of the tower crane safety measures. If the project is contracted to two or more construction units according to law, when the construction units use multiple tower cranes at the same construction site, the construction unit shall coordinate and organize the safety measures to prevent the tower cranes from colliding with each other. Required by Order 166 (some manufacturers and individual departments or agencies distort this provision and propose the installation of anti-collision devices or so-called "black box" regulations). That is to say, if a tower crane and another tower crane or building do not meet the requirements in terms of distance or height, the tower crane cannot pass through the installation and acceptance, and it is impossible to be on the construction site. Used on. What's more, the tower cranes have also set up ground commanders and sergeants in the course of use, and require full-time safety and technical personnel to be on the scene during major or dangerous hoisting, that is, safety measures such as collision prevention are relied on beforehand. Installation plan, second, after the supervision of personnel. According to such safety protection measures, it is impossible to cause a tower crane collision accident. If the tower crane anti-collision device is installed to prevent collision between tower cranes or other buildings, it may be misleading that the installation unit or the use unit is not installed according to the specification at the installation distance or height. The anti-collision device or the so-called "black box" relaxes the supervision, but it is easy to cause an accident.
- Confuse responsibility. Unauthorized alteration of the safety protection device of the tower crane violates the relevant technical specifications, and the accident liability is difficult to identify.
Each tower crane shall be inspected according to the specifications before leaving the factory, and the product qualification certificate shall be obtained. It is a violation of regulations to tamper with product safety guards. This raises the issue of the identification of security responsibilities. If an accident occurs in a tower crane, the manufacturer can change the safety protection device without acknowledging the quality of the product; then who is responsible for this responsibility? I am afraid that those who arbitrarily issue a force request to buy anti-collision devices or so-called " The administrative department or agency of the "black box" will not recognize its responsibility, and ultimately the enterprise or tower crane property unit will take responsibility for it. Obviously, there is a problem with this method. In addition, if the "black box" can be used to "solve" the anti-collision, the tower crane driver and the tower crane commander will be easily paralyzed. After the accident, they may push the responsibility to the "black box".
- Violation of regulations. Articles 4 and 5 of the Administrative Licensing Law stipulate that “the establishment and implementation of an administrative license shall, in accordance with the statutory powers, scope, conditions and procedures, establish and implement an administrative license, and shall follow the principles of openness, fairness and impartiality. The provisions on administrative licensing shall be announced. If they are not published, they shall not be used as the basis for the implementation of administrative licensing."
It is certainly illegal for an administrative agency or a safety production supervision agency entrusted by an administrative agency to issue an administrative license other than administrative power without issuing any administrative licensing procedures. At present, some industry leaders do not realize this point. It is worthwhile to sign the instructions to ask the relevant departments to enforce the "black box".
Article 55 of the State's "Safe Production Law" stipulates: "The department responsible for the supervision and management of production safety shall examine and accept the matters involving safety production, and shall not charge fees; the units that are subject to review and acceptance shall not be required to purchase their designated brands. Or specify the safety equipment, equipment or other products of the production and sales unit.†The administrative supervision department or agency expressly stipulates that the purchase of anti-collision devices or so-called “black box†violates the provisions of the “Safe Production Lawâ€.
- Practical application issues. The actual application of the anti-collision device or the so-called "black box" at the construction site proves that this mandatory measure is wrong.
Due to the technical problems of "black box" and the complicated and varied environment of the construction site, many problems have appeared in the actual use of "black box" and cannot be solved in time. According to the survey, construction companies forced to install anti-collision devices or so-called "black box" generally reflect that these devices are unstable in performance, false alarms occur, and there is no timely maintenance of the device production units, resulting in tower crane operators simply Turn these devices off and no longer use them. As a result, the original safety device may be modified, and the existing alarm device may not work, but may cause an accident. According to reports, the existing anti-collision device is only an alarm device, which does not have a timely preventive effect. The technical standards of "black box", product purchase cost and after-sales service problems have brought many problems to the safety management of tower cranes on the construction site.
In summary, it is very inappropriate to designate anti-collision devices for the hoisting machinery property or to force the so-called “black boxâ€. It is strongly appealed to the competent authorities of the industry to pay attention to this matter and act in accordance with the law. Under the premise of not fully investigating and hearing in the industry, we must not rush to decide, and we must resolutely stop the spread of the "black box" public opinion phenomenon.
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