Electrical Installations and Lighting

Subject description

Electrical installations and legislation: basic concepts, types of electrical installations, electrical circuits and systems, marking of conductors, technical legislation, standards and regulative documents, methods of preparing technical legislation, codes and standards in the field of LV electrical installations.

Elements of electrical installation: cables and wires, marking, selection and installation of cables, , installation pipes, sockets and plugs, installation switches, laying of installations.

Dimensioning of conductors: currents and voltages in installations, thermal, electrical and mechanical dimensioning of conductors, dimensioning in terms of costs, over-current protection of conductors.

Protection of electrical installations: currents in electrical installations, protection devices and their selection, selective protection, connection of loads.

Risk of electric current and protective measures: influence of electric current on the human body, resistance of the human body, touch and step voltage, electric shock, protection against direct and indirect contact, additional protection and residual current devices.

Intelligent electrical installations: why intelligent installations, EIB/KNX installations, components and their programming, design of intelligent installations.

Influence of light on humans: light and humans, human eye and its properties, effects of light on humans, light and health, light and psyche, disruptive effects of light.

Physical basics of light and photometry: theories of light, light as part of the EM spectrum, phenomena connected with light, radiometry, photometry, how to measure photometrical quantities.

Light sources: natural light, the history of light sources, electric light sources, luminaires.

Lighting with artificial light: tasks of lighting, properties of good lighting, illuminance, uniformity of illuminance, glare control, harmonious distribution of luminance, light colour and colour rendering index, direction of light and shadows.

Interior lighting design: characteristics of good lighting, purpose of interior lighting, guidelines and standards for lighting, concept of lighting, lighting systems, design of lighting installations.

Safety lighting: standby and safety lighting, escape route safety lighting, anti-panic lighting, safety lighting where risk of accident is present, safety signs, luminaires for safety lighting, voltage sources, systems for safety lighting, safety lighting control and testing.

Design and measurements of electrical installations: basics of building construction, course of project work, centre of gravity of electrical load and placement of distributors, number of circuits and their load, symbols in installation plans, review and test of electrical installation.

Road Lighting: road lighting as safety measure, quality of road lighting, tasks of road lighting, luminance and illuminance, glare control, selection and arrangement of luminaires, light sources for road lighting, road lighting design and measurements.

Sustainable construction: principles of sustainable construction, sustainable construction indicators, sustainable building, electrical installations as a sustainable product (design, construction, maintenance), reduction of electricity consumption for lighting, reduction of electricity consumption through smart installations, impact of electrical installations on the whole life cycle of the building.

The subject is taught in programs

Objectives and competences

Student will know the legality of technical regulations and standardization as well as normative acts in force in the area of electrical installations and lighting. He/she will be aware of the dangers of electricity and will know the principles of protection against electric shock. Student will learn how important lighting is for humans and he/she will know the basics of lighting techniques. Student will also know the state of the art in electrical installations and lighting; the methods for planning of electrical installations and lighting and how to use appropriate tools in the planning process. He/she will be able to perform measurements of electrical installations and lighting. He/she will understand the principles of sustainable construction and be able to design and maintain electrical installations and lighting in accordance with principles of sustainability.

Teaching and learning methods

Lectures, laboratory exercises.

Expected study results

After successful completion of the course, students should be able to:

– list the elements of electrical installations;

– make a project of simple electrical installation;

– make a project of simple lighting installation;

– carry out basic installation work;

– verify the correctness of carried out installation by examination and measurements;

– assess the adequacy of lighting system with help of measurements of illuminance;

– apply the principles of sustainable construction in the design, implementation and maintenance of electrical installations and lighting.

Basic sources and literature

BIZJAK, Grega, KOBAV, Matej Bernard, PRELOVŠEK, Mitja. Razsvetljava : učbenik za poglavja o razsvetljavi pri predmetih Električne inštalacije in razsvetljava, Nizkonapetostne električne inštalacije, Elektrotehnika in varnost, Svetlobna tehnika. 1. izd. Ljubljana: Založba FE in FRI, 2013
RAVNIKAR, Ivan. Električne inštalacije: električne inštalacije zgradb skladno z družino standardov SIST HD 60364. Ljubljana: Agencija Poti, 2010
BASTIAN, Peter et al. Elektrotehniški priročnik. Ljubljana: Tehniška založba Slovenije, 2013
CADICK, John e tal. Electrical Safety Handbook. New York: McGraw-Hill, 2005
The IESNA Lighting handbook: reference and application, New York : Illuminating Engineering Society of North America, cop. 2011 ali 2000