# security and life Basics

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I suggest to buy a quiz on the subject: "Basics of security and ability to live"
3. State and public supervision and monitoring of the legislation on occupational safety and health in the enterprise. Responsibility for violation of legislation on occupational safety and health 3
9. Investigation light industrial accidents. The procedure for the formation of the commission, its composition, the necessary documents, the timing of the investigation 9
14. Education and instruction in occupational safety of workers at the enterprise 10
45. Fire. Fire safety. The main causes of fires. Dangerous and harmful factors of primary fire extinguishing agents. Fire extinguishers. Scope of application. 14
Problem №4 18
References 22
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Determine the annual socio-economic cost of the additional payment of sick leaves due to pollution cement dust in cement unloading of wagons.
Initial data:
• The size of the territory of the cement unloading S, m2 - 250;
• Number of unloaded wagons, N, pcs - 6;
• The total time of discharge wagons t, h - 3.00;
• The average density of people on the cement unloading Np, people / m2 - 0.12;
• Average daily wage per employee Sn, rub. - 26.0;
• The number of sick days per employee per year, D days- 20;
• The maximum rate of natural loss of cement during unloading Kn = 0.15%
• The weight of cement in the car m = 50 m, that is 50,000 kg.

Determine the annual socio-economic cost of the additional payment of sick leaves due to pollution cement dust in cement unloading of wagons.
Initial data:
• Rod soil - clay;
• The depth of pile grounding device HT - 74 cm
• Climate zone - II
• coefficient, which takes into account the influence of climatic zones Y - 1,8 ... 1,3
• The length of the vertical electrode I - 300 cm
• electrode outer diameter d - 6 cm
• The width of the steel strip combining B - 3 cm
• The electrical network with insulated neutral - 380/220
• calculation scheme (type of grounding to take on their own);
• soil resistivity Ptabl - 0.5 • 104 ohm / cm
• allowable grounding resistance Rdop device - 4 OHMS
• coefficient hu use for vertical earthing - 6 pieces - 0.730
• utilization rate for hu earthing strips 6 pcs - 0.48

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