6
6
1 Introduction
1.3
Handling Electricity
The following operations may only be performed by qualified electricians:
•
Any labor performed on electrical component groups.
•
Operations performed on the opened device while it is connected to the power grid.
General precautions when commencing maintenance operations:
•
Locate the emergency power and/or mains switch so it is reached quickly should the need arise.
•
Disconnect the power when performing the following tasks:
- Removing or installing the power supply.
- Performing work in the vicinity of opening power connectors.
- Mechanical testing of power units.
- Altering anything to do with the circuitry.
•
Check that the device is not live.
•
Check the work area for any potential hazards such as damp or wet floors, defective extension cords or protective
conductors.
Additional precautions when dealing with open voltage supply:
•
Request a second person to stay in the vicinity and operate the emergency powers or mains switch if and when
required.
•
Only use one hand when working with electronic circuits. Keep the other hand behind your back or in a pocket. By
doing so you prevent electricity from flowing though the body.
1.4
Conduct during Accidents
•
Act with exception caution and calmness.
•
Do not put yourself at risk.
•
Switch off the power.
•
Request medical assistance or call an emergency doctor.
•
If required and possible perform first aid.
