Control 1 and 2 on labor protection, option 2 (PGUPS)

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Uploaded: 17.09.2013
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Examination 1.
3. Effect of electric current on the human body. The resistance of the human body.
19. The method of first aid to victims of electric current
22. Basic requirements for coverage of open spaces. The procedure for the calculation of floodlighting on a method of utilization of light flux.
31. The fire control of the railways in the USSR.

Target 10
To calculate the lightning plant (depot traction substation).
Initial data:
Category Company (motovagonnogo depot) lightning protection III
Building Data, m:
Height 8
Length 10
The width of 5
Ukaznoy to solve the problem:
1. According to the category of the enterprise to establish the magnitude of the pulsed current spreading resistance earthing rg
2. In calculating take: the amplitude of the lightning current - 200 kA, a specific inductance collector - 1.7 g / m, the slope of the front of the lightning current - 60 kA / ms, Rated surge strength of air - 500 kV / m; Rated impulse withstand soil - 300 kV / m.
3. Define:
A) the minimum distance from the lightning to the object to be protected;
B) protection radius rx at the upper end of the protected object hx;
B) the height of the lightning rod, depending on the radius of protection and the altitude of the object;
D) the resistance of vertical earthing.

Target 11
Determine the value of the voltage and the current flowing through the body of a man who touched the wire-wire network that is isolated from the ground in parallel with the convergence of the track electrified road AC with a rated voltage of 27.5 kV, Hz
Initial data:
The width of the convergence between broadcasting or cable connection or influence line - 15
The length of the settlement site link or wire broadcasting - 2
Number of tracks - 1
Length of convergence within the settlement area -2
The number of grounded wires on the link or wire broadcasting - 2
The number of additional influencing wires - 1

Examination 2
Objective 2.5
Calculation of protection against electric shock
Notes to the problem:
1. Based on the IO and on the basis of a given variant chosen method of protection against electric current - protective ground or vanishing.
2. Following the table. 2.5.2 or Table. 2.5.3 and using the methodological guidelines IO, calculate the required security settings.
3. In the case of the variant with vanishing developed wiring diagram power consumers to the network, in the case of options with a protective ground - sketch of the protective earth
Initial data:
Power supply - 130 kVA
Mains voltage lines / phase - 380/220
Characteristics of Neutral - grounded
Characteristics of the network - wired
Initial data:
Power supply - 130 kVA
Mains voltage lines / phase - 380/220
Characteristics of Neutral - grounded
Networking features - neprovodnaya.

Additional information

Task 2.7
Calculation of sanitary - household premises facilities specialty devices.
1. Assess the availability of the object of special ablution facilities and devices, based on the specified options.
2. The evaluation calculate and harmonize the rules of the security object ablution facilities and devices.
Group II production process Mr.
The total number of employed men / women 120/30
The number of working in the most numerous shift (husband / wife) 70/20
The number of cabinets in dressing 60/30
Number of shower screens 23/7
The number of taps in washrooms 5/2
Area smoking rooms, m2 9/7
The number of devices on the drinking water supply facility 1

Task 2.9
Calculation of fire extinguishers
Initial data:
Floors object - 2
Placing an object 1,2,3,4
What floor is the room - 2, 1, 1, 2
Area - 120, 70, 70, 20
The substances used in the manufacture of the premises - acetone
The presence of electrical - +, -, -, +


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