Question 1: Objects labor electrical profession include:
- Equipment protection switching and voltages
- Power source DC and AC voltages below 380V low
- power measurement device
- The type of electrical appliances
Interior craft labor capacity of civil power
- Installation of electrical networks and domestic production
- Installation of electrical equipment and appliances
- Operation, maintenance and repair of electrical networks and equipment and electrical appliances
Question 4: Process wiring
- Shelling insulation
- Clean junction
- Wiring
- check connections
- Welding joints
- Insulation splice
junctions Requirements
- Led good electricity: small joints resistance to an electrical current through easy .Muon so easy, the contact surface must be clean, large enough contact area and joints must be cut (best soldering joints to be back)
- High mechanical strength: to withstand pulling, cutting and shift
- Electrical safety: Insulation is good, not excellent connections to avoid puncturing the insulating layer of ice
- on a bare Guarantee: Joints must be neat and beautiful
verse 5 Functions of the main electrical panel
- Yes responsibility electricity supply for the entire electrical system in the main electrical panel fitted .On breakers, fuses (or circuit breaker)
The functions of the branch electrical panel
- Yes duty power supply to electrical appliances, on That normally mounted pressure switch or circuit breaker, power socket, fan gear
Installation of electrical switchboard Q6 is conducted according to the process
- scribing
- Drilling holes in the power board
- Wiring electrical equipment of the power board
- Installing electrical equipment into a power
- Check the
electricity board, the following requirements
- Installation of equipment and wiring according electrical diagram
- The splice sure
- Arrangement of the compact device, beautiful
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