DLWD-SA2668B Safety Using Electricity Trainer I. Product profile This device USES German teaching practice mode, which involves all aspects of safe using electricity, enable students combine the theory to practice, enable students to students transfer the abstract theories to understandable image ,and learn it.It adopt modularized device structures and 22 independent teaching modules, can demonstrate 68 training programs. II. Technical parameter 1. Dimension: 1450×1850×900mm 2. Work power :Single phase, three wire(L,N,PE）,AC220V±10% 50Hz 3. Power: Pmax=300W 4. Weight: 110Kg III. Personal safety and protective measures 1. power monitoring and instructions 2. Short-circuit current protection 3. Overload protection ground protection 4. Leakage protection IV. Main training experiment (Totally 68 experiment ) 1. Resistance of the human body 2. Current-time hazard of AC currents of 50 HZ 3. Current-time hazard of DC currents 4. Operating and working with electrical installations 5. Introduction to first aid for electrical accidents 6. Network forms 7. Basic terms of protective measures I 8. Basic terms of protective measures II 9. Direct contact 10. Indirect contact 11. Design and function of a fault current circuit breaker 12. Protection against direct and indirect contact Protection by limiting discharge power etc.