1. GASILSKA ZVEZA IZOLA NADALJEVALNI TEČAJ ZA GASILCE
ELRKTRIKA V GASILSTVU
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 1

2. STATIČNA ELEKTRIKA
Že naši predniki so s strahom opazovali strahotne učinke bliska oziroma strele.
Takrat kakor tudi še tisočletja pozneje, si niso znali razložiti teh pojavov.
Šele stari Grki so postali pozorni na pojav pri jantarju, če so jantarjevo palico drgnili z volneno krpo, je ta po drgnjenju lahko privlačila lahke delce (papir,prah…)
Ker so stari Grki jantar imenovali elektron, se je verjetno tudi tega pojava prijel naziv ELEKTRINA oziroma naelektrenost ali ELEKTRIČNI NABOJ. 2

3. Čim višji potencial ima telo tem večja je moč električnega polja.
Poznamo dve vrsti ELEKTRIČNIH NABOJEV – negativne (-) in pozitivne (+).
Istoimenska naboja se odbijata, raznoimenska pa se privlačita in v svojem vplivu uničujeta. (poizkusi z dvema magnetoma)
Merilo za energijo, ki jo vsebuje naelektreno telo, je njegov POTENCIAL ali NAPETOST.
Vsak električni naboj povzroča okoli sebe posebno stanje prostora, ki ga imenujemo ELEKTRIČNO POLJE. V njem zaznamo učinke električnih sil.
Čim višji potencial ima telo tem večja je moč električnega polja.
Potencial in z njim električno polje lahko tako narasteta, da pride do PRESKOKA EL.NABOJA z enega telesa na drugo telo. (v naravi strela) 3

4. 4

5. ZGRADBA SNOVI MOLEKULE ATOMI ELEKTRONI (-) PROTONI ( + )
NEUTRONI ( brez elektrine – nevtralni) 5

6. ELEKTRIČNA NAPETOST (U)
Električna napetost je potencialna razlika med dvema točkama.
Potencialna razlika nastane zaradi:
ELEKTROSTATIKA (trenje) – najvišje napetosti - strele
KEMIĆNI PROCESI (kemična reakcija med dvema snovema)
ELEKTROMEHANSKI POJAVI (vrtenje tuljave v magnetnem polju)
ELEKTROMAGNETNI POJAVI (tuljava v spreminjajočem se magnetnem polju)
Izražamo jo v voltih (V) 6

7. ELEKTRIČNI TOK (I)
Električni tok je usmerjeno gibanje prostih elektronov v snovi.
Za usmerjeno gibanje prostih elektronov potrebujemo silo ki jo imenujemo električna napetost.
Električni tok izražamo v amperih (A) 7

8. ELEKTRIČNA UPORNOST (R)
Električni upor je lastnost snovi, ki jo le-ta kaže do prevajanja električnega toka.
Materiali,ki dobro prevajajo el.tok imajo majhno upornost –kovine- PREVODNIKI
Materiali,ki slabo ali pa sploh ne prevajajo el.tok pa imajo veliko upornost – nekovine IZOLATORJI
Električni upor izražamo v omih (Ω) 8

9. “OHMOV ZAKON”
Napetost je enaka zmnožku toka in upora. U= I . R R= U:I; I= U:R
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 9

10. ENOSMERNI IN IZMENIČNI TOK TER NAPETOST
Če je napetost stalna, bo ob nespremenjeni obremenitvi tekel vedno enak tok v isto smer – ENOSMERNI TOK – (DC)
Če se napetost spreminja po smeri in velikosti jo imenujemo izmenična napetost, le-ta požene IZMENIČNI TOK – (AC)
Uporabljamo enofazni in trifazni izmenični tok ter napetost.
Enofazna napetost je pri nas 220 V
Trifazna napetost je 380 V 10

11. DELO IN MOČ ELEKTRIČNEGA TOKA
Delo je produkt sile in poti. Podano je v Joulih (Džulih) - (J) oziroma v vatsekundah (Ws)
Moč je delo v enoti časa. Podana je v vatih(W). V elektrotehniki uporabljamo tudi večje enote za moč: kW,MW,TW,GW 11

12. PORABA ELEKTRIČNE ENERGIJE
Porabo električne energije merimo s števci
Števci lahko merijo delovno in jalovo energijo, izgube itd.
Običajna je meritev delovne energije, ki se meri v kilovatnih urah (kWh) 12

13. STROJI IN NAPRAVE V ELEKTROTEHNIKI
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close.
GENERATORJI 13

14. TRANSFORMATORJI 14

15. ELEKTROMOTORJI To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close.
ELEKTROMOTORJI 15

16. ELEKTROENERGETSKI OBJEKTI
SKICA NUKLEARNE ELEKTRARNE
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 16

17. TERMO ELEKTRARNA To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close.
TERMO ELEKTRARNA 17

18. HIDROELEKTRARNA To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close.
HIDROELEKTRARNA 18

19. TRANSFORMATORSKA POSTAJA
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close.
VISOKONAPETOSTNI DALJNOVODI 19

20. DRUGI VIRI ELEKTRIČNE ENERGIJE
GORIVNE CELICE
AKUMULATOR
SHEMA DELOVANJA GORIVNE CELICE
FOTOCELICE
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close.
DRUGI VIRI ELEKTRIČNE ENERGIJE 20

21. OSNOVE ELEKTROENERGETSKIH NAPRAV IN 0BJEKTOV
ELEKTROENERGETSKI PROSTORI
ELEKTRIČNE OBRATOVALNICE
ZAPRTA ELEKTRIČNA OBRATOVALIŠČA
Namembnost prostorov mora biti napisana na vhodnih vratih na posebnih opozorilnih napisih, ki opozarjajo na nevarnost. Nezaposlena oseba, ki je v teh prostorih v spremstvu, se mora dosledno ravnati po prejetih navodilih.
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 21

22. ELEKTRIČNE INSTALACIJE
Električne instalacije so smotrno povezane naprave, ki prenašajo električno energijo od proizvodnih naprav do porabnikov. 22

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25. ZAŠČITA PRED ELEKTRIČNIMUDAROM
Električni udar je stik dela telesa z delom pod napetostjo, pri čem skozi telo steče električni tok.
ZAŠČITA PRED NEPOSREDNIM DOTIKOM
ZAŠČITA PRED POSREDNIM DOTIKOM
SOČASNA ZAŠČITA PRED NEPOSREDNIM IN POSREDNIM DOTIKOM
UPORABA RAZLIČNIH VRST SISTEMOV INSTALACIJ 25

26. Izenačevanje električnega potenciala
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 26

27. Dodatno izenačevanje potenciala
FID STIKALO 27

28. ZAŠČITA PRED DELOVANJEM STRELE IN PRED PRENAPETOSTMI
Stela je pojav električnega preboja med negativnim potencialom v oblakih in pozitivnim na zemlji.
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 28

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30. 30

31. STRELOVODI IN OZEMLJILA31

32. 32

33. NAPETOST DOTIKA IN NAPETOST KORAKA
NAPETOST DOTIKA je razlika med napetostjo ozemljila in napetostjo tal na oddaljenosti 1m od
ozemljenega kovinskega predmeta ( približno razdalja iztegnjene roke)
NAPETOST KORAKA je enaka razliki napetosti tal v dveh točkah, ki sta v radialni smeri od ozemljila 1m narazen ( približno en korak )
Napetost dotika je človeškemu organizmu
nevarnejša od napetosti koraka, ker gre pri dotiku z rokami del toka tudi skozi srce. 33

34. To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 34

35. SESTAVA STRELOVODA 35

36. FARADAYEVA KLETKA 36

37. POŽAR IN ELEKTRIKA 37

38. VARSTVO PRI DELU IN ELEKTRIČNI TOK
Dostop v električna obratovališča in opravljanje oziroma vodenje del na elektroenergetskih objektih, postrojih in opremi je dovoljen samo usposobljenim in posebej pooblaščenim osebam. 38

39. REŠEVANJE POŠKODOVANCA
Takojšnja odstranitev vpliva električnega toka – pri tem pazimo na lastno varnost.
Nudenje prve pomoči ( umetno dihanje, masaža srca).
Hkrati pokličemo zdravnika,s prvo pomočjo pa nadaljujemo do njegovega prihoda .
To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 39

40. HVALA ZA POZORNOST To insert this slide into your presentation
Save this template as a presentation (.ppt file) on your computer.
Open the presentation that will contain the image slide.
On the Slides tab, place your insertion point after the slide that will precede the image slide. (Make sure you don't select a slide. Your insertion point should be between the slides.)
On the Insert menu, click Slides from Files.
In the Slide Finder dialog box, click the Find Presentation tab.
Click Browse, locate and select the presentation that contains the image slide, and then click Open.
In the Slides from Files dialog box, select the image slide.
Select the Keep source formatting check box. If you do not select this check box, the copied slide will inherit the design of the slide that precedes it in the presentation.
Click Insert.
Click Close. 40