NTC-17.55.3 “Occupational health and safety. Electrical safety”

Br0.00

The training laboratory system is designed for the study of two main systems of electrical safety: protective grounding and neutral grounding together with protecting cutout devices.

 
Category:
Structurally, the system consists of the body in which electric equipment is mounted, front panel and desktop of integrated table.

The panels of the stand contain the circuits of electrical safety devices and electrical subsystem of the stand, measuring and information system, control system. 

The study of electrical safety systems is done at shorting of a phase wire to frame (mass) of electricity consumer. The physical model of a man is in contact with electricity consumer body. 

The system allows the possibility of changing the electrical resistances of grounding mat, dead-grounded and insulated neutral and human model. It allows to study the influence of the abovementioned parameters on current passing through physical human model, determine voltage at electricity consumer frame, estimate short circuit current at actuation of neutral grounding together with protecting cutout devices.

Lowered voltage is used for insuring the experiment safety.

The measured values (voltage, currents) are digitally displayed.

The training system is supplied with:

  • set of methodological and technical documentation intended for academic staff;
  • software for safety instructions training.

Experiments provided

  1. Studying the human resistance at alternating current.
  2. Study of the electric shock when working with a power tool.
  3. Studying the current passing through the human body under various scenarios of contact with live conductors and grounded equipment.
  4. Studying the current passing through the human body on contact with the chassis of grounded equipment during phase to chassis fault.
  5. Studying the fault current of grounded equipment during phase to chassis fault.
  6. Studying the “step voltage” phenomenon during transmission line to ground fault.

Technical specifications

Power supply: 220 V, 50 Hz
Power consumption, Watt, max 250
Stand overall dimensions, max:
  Width, mm 1310
  Height, mm 1460
  Depth, mm 600
Weight, kg, max 80

Scope of delivery

  • training laboratory system – 1 pc.;
  • set of jumpers – 1 pc.;
  • passport – 1 pc.;
  • accompanying materials in electronic format – 1 pc.

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