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Dynamic safety risk evaluation method based on LEC

A technology for risk assessment and dynamic security, applied in the field of security risk assessment to avoid empiricism and limitations

Pending Publication Date: 2020-02-04
杭州交联电气工程有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the LEC evaluation method is based on the calculation of the inherent risk value, which is judged by experience to a certain extent, and its limitations need to be considered when applying it

Method used

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  • Dynamic safety risk evaluation method based on LEC
  • Dynamic safety risk evaluation method based on LEC
  • Dynamic safety risk evaluation method based on LEC

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Experimental program
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Embodiment Construction

[0023] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0024] like figure 1 Shown: A dynamic security risk assessment method based on LEC, including the following steps:

[0025] Step 1, using the LEC method to quantitatively calculate the inherent risk value;

[0026] Step 2, calculating a dynamic risk value according to the inherent risk value;

[0027] Step 3, divide the risk level according to the degree of risk to personal injury;

[0028] Step 4, setting the corresponding dynamic risk value according to the risk level.

[0029] In the first step, the inherent risk value is expressed as D 1 = L 1 ×E 1 ×C 1 , the L 1 is the score corresponding to the possibility of an accident or risk event, as shown in Table 1:

[0030] Table 1: Probability Score Table of Accidents or Risk Events Occurring

[0031]

[0032]

[0033] The E 1 is the score value corresponding to the frequen...

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Abstract

The invention discloses a dynamic safety risk evaluation method based on LEC, and the method is characterized in that the method comprises the following steps: 1, carrying out quantitative calculationof an inherent risk value through employing an LEC method; 2, calculating a dynamic risk value according to the inherent risk value; 3, dividing risk grades according to the degree of personal injurycaused by risks; and 4, setting the corresponding dynamic risk value according to the risk level. On-site management and control and monitoring measures are mainly taken, risk assessment scenes and risk factors under all the scenes are more reasonably and comprehensively refined, the risk assessment scenes and risk factors correspond to the risk levels, and limitation and experience subjects during inherent risk assessment are avoided.

Description

technical field [0001] The present invention relates to a security risk assessment method, in particular to a dynamic security risk assessment method based on LEC. Background technique [0002] With the development of my country's economic construction, engineering construction safety has become the top priority of major construction parties. How to evaluate the safety of hazards in potentially dangerous operating environments has been the object of research by scholars at home and abroad. The currently commonly used LEC evaluation method is a semi-quantitative safety evaluation method for hazard sources in potentially dangerous operating environments, and is used to evaluate the danger and harm of operators when working in potentially dangerous environments. This method uses the product of three factors related to system risk to evaluate the risk of operator casualties. The frequency of the accident) and C (Criticality, the possible consequences of an accident). Different...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q10/00
CPCG06Q10/0635G06Q10/20
Inventor 张伟明童训奇方叶明冯焙万亮
Owner 杭州交联电气工程有限公司
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