Study Guide

Objective

The student:
- knows and can describe the requirements for electrical installations
- is able to define general characteristics of electrical installations
- is able to describe different protection methods
- is able to choose electrical equipment
- can carry out checks before commissioning

Content

Requirements relating to electrical installations (planning and ensuring the protection requirements).

Definition of general characteristics (maximum load and equalization of load, distribution system, electrical system compatibility, safety system)
Protection methods (base protection, fault protection, overcurrent protection, overload protection, short-circuit protection)

Selection and installation of electrical equipment electricity (protection classes, choice of wiring, different types of wiring, external influence, wiring load capacity, voltage drop, protective devices, overcurrent protection, overvoltage protection, protection conductor design, potential equalization)

Controls (pre-commissioning inspections, inspections, testing, maintenance checks)

Materials

SFS 6000 and info from eg. Tukes
Lessons learned in the subject.
Info from manufacturer of installation equipment.
Compendiums of the course coordinator.

Evaluation scale

H-5

Assessment criteria, satisfactory (1)

Know the basic requirements regarding electrical installations.
Know and be able to define general characteristics of electrical installations.
To know different protection methods against dangerous contact voltages and against overloading of circuits.
To know and be able to choose wires and protective circuits for wires.
To know and be able to perform basic measurements when commissioning installations.

Assessment criteria, good (3)

Know the basic requirements regarding electrical installations.
Know and be able to define general characteristics of electrical installations.
To know different protection methods against dangerous contact voltages and against overloading of circuits.
To know, be able to calculate and be able to choose wires and protective circuits for wires.
To know and be able to perform basic measurements when commissioning installations

Assessment criteria, excellent (5)

Know the basic requirements regarding electrical installations.
Know and be able to define and describe in general the general characteristics of electrical installations.
To know different protection methods against dangerous contact voltages and against overloading of circuits.
To know, be able to calculate and be able to choose wires and protective circuits for wires.
To know, be able to describe and be able to perform basic and special measurements when commissioning installations.

Qualifications

The basics of electrical engineering