about the course - kerala · about the course the course named ... led strip level fault. unit 4 -...

Page - 53

VHSE Curriculum

ABOUT THE COURSE

The course named Electrical and Electronics Technology (EET) comesunder engineering group. Electrical and Electronics Engineering fieldhas radically transformed our way of life and so the basic concepts of thesame have been dealt with in detail. Students with a flair for domesticappliance servicing and wiring will find the course a rewarding careeroption. Besides this, students can stabilize their career by equippingthemselves with wire man licence. This can open the portals of selfemployment to the pass outs. For those aspiring to apply forgovernment jobs, the course is recognised by PSC and so it opens jobopportunities. There are ample opportunities in private sectors too. Duepriority is also given to skill development to ensure that students don'ttake a back seat on their ride to success. So the future seems promisingfor EET students.

The course EET ensures a radical change at the academic level and sois all geared to set a new mile stone for its students. Our prime focus ison developing much needed man power in industries and opening upopportunities for self employment.

The much awaited syllabus revision has distanced the stagnancy thatthe course had been in for a long time. Bridging the gap between currentindustry requirement and skill competency of students is a herculeantask. We believe that we have done justice to this issue and addressedit by taking a small step forward. All credit goes to replacing obsoletesyllabus with portions incorporating current technology and industryrequirement. This seems to be the only sensible solution. Practical skillsof students should also be enhanced by paying more attention to hands-on-training.

Page - 54

ELECTRICAL AND ELECTRONICS TECHNOLOGY

JOB ROLES

A "job role" is a description of what a person does for a certain type ofjob. The job roles of the course in different sectors are given below:

GOVT/ SEMI GOVTSECTOR PRIVATE SECTOR

SELFEMPLOYMENT

• Electrician• Wireman• Energy meter

reader in KSEB• Lab Technical

Assistant."

• Electrician• Wireman• LED light repair

Technician• Sales man(Electrical

& Electronics goods)• Home Appliance

Service technician• Solar equipments

installation andservice Technician.

• Wireman• Home Appliance

service technician• Electrician• Electronic circuit

board assembling(solderingtechnician)

• LED light repairingtechnician

• LED Lampassembling andselling.

• Solar equipmentinstallation andservice Technician.

SUBJECT APPROACH

The way of life of our society has tremendously changed due to thedrastic changes in the field of electrical and electronics engineering. Thespectrum of this branch directs the prosperity of human being by ameasure of per capita income earned through self or wage employment.Besides this, students can stabilize their career by equippingthemselves with wireman licence. Also by obtaining 4 skill certificatesafter completion of this course, the learner will be able to start their ownbusiness ventures to become successful entrepreneurs with technicalknowhow. This course deals with basic principles of electrical andelectronics engineering, assembling and repairs of LED lamps, housewiring practice, home appliances servicing and solar equipmentinstallation and maintenance. For those aspiring to apply forgovernment jobs, this course is recognised by KPSC and so it opens jobopportunities.

Objectives• To prepare the learner to enter self employment as LED

lamp repair technician, wireman, home appliance servicetechnician and solar equipment installation and maintenancetechnician.

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VHSE Curriculum

• To equip the learner to get wage employment in public aswell as private sector by attaining skill and undertaking theservice work.

• To meet the requirement of skilled man power as wireman/technician in the field of electrical and electronics.

• To acquire basic knowledge in the field of electrical andelectronics engineering at higher secondary level itself andthereby enabling him to equip with modern technology toget a foundation for his future studies/ career.

Learning approach

In the curriculum of EET, a learner centred and activity based approachis encouraged. The learning methods are selected in such a way that aspecific learning outcome can be acquired. While thinking about thelearning methods of vocational education, we must remember that thiseducation is work-based. The 'learning by doing' approach can be usedin most of the learning methods. But for getting resourcefulness (applyknowledge in different contexts), theoretical understanding is alsonecessary. Theory should not be isolated from practical activities as ithappens in most of the vocational subjects. Since theory and practicehappen in geographically different places, or at different times;sometimes the learner won't be able to see that these two relate together.So learning methods should balance theoretical and practical.

In activity based curriculum, most of the learning methods areprogressing through group works. Learners work together for solvinga problem. This improves the team spirit and creates a democraticatmosphere in class room/workshop/work place. It helps thecooperative and collaborative learning. The use of inquiry, discoveryand problem solving approaches can be incorporated in teaching andlearning process.

Unlike general subjects, the learning environment of vocationaleducation is more complex. The Co-learners, Teacher/Trainer(experience, expertise and attitude) and the Physical location are themain factors for learning within a curriculum. Physical location isspecifically important in vocational education, as most teaching takesplace in the dual settings of both workplace and educational institution.The environment, particularly the outdoor natural environment, hasmuch more to offer than just a 'location' for the delivery of experientiallearning. The nature of work place is entirely different from the schoolwork shop or from class room. In case of EET course, the possiblelearning environments such as workshops, servicing centres, wiringsites etc. can be made available as outdoor learning environment.

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Vocational learning generally requires real hands-on experience. Theuse of e-learning is relevant to both the practical and the theoreticalworlds in the sense that an increased use of e-learning can usuallyimprove teaching and learning in both settings. The ICT possibilities inEET curriculum are using CDs of simulated experiments, work placevideos, online resource sites, etc.

Vocational education is also suitable for most of the differently abledchildren. But, for each learner; there must have a scientific selection ofvocational course depending on their disability and attitude. Whileselecting EET learners, safety measures of handling electricity must begiven at most importance.

SCHEME OF WORK

Month Unit Period

June Fundamentals of Electricity 40Electronics components and devices 28

July Electronics components and devices 32Assembling and repair of LED Lamps 36

August Assembling and repair of LED Lamps 68

September Assembling and repair of LED Lamps 46Fundamentals of House wiring 22

October Fundamentals of House wiring 68& House wiring practice

November House wiring Practice 48Magnetism 20

December House wiring Practice 48A C Circuits 20

January House wiring Practice 38A C Circuits 30

February House wiring Practice 36A C Circuits 10Transformers 22

March House wiring Practice 30A C Circuits 30Transformers 8

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VHSE Curriculum

SYLLABUS

Module: 1

Basic Electrical & Electronics Technology

Unit 1 - Fundamentals of Electricity (40 Hrs)

Resistance- Factors affecting resistance- Series and Parallel connectionsof Resistors- Conductors, Insulators - Properties- Concepts of Voltage& Current- Familiarisation of analog and digital meters- Connection ofAmmeters and Voltmeters-Ohm's Law- KCL & KVL.

Unit 2 - Electronic Components and Devices - I (60 Hrs)

Passive components-resistors-colour coding of resistors-capacitors-Types of capacitors-Testing-Inductor-Types-Basics of semiconductortheory-Extrinsic semiconductor-doping-Intrinsic semiconductor-PNjunction-Diode-biasing-VI characteristics, testing of diodes. -

Diode as a rectifier-centre tap and bridge rectifier-filter component andtheir role in reducing ripples.

Unit 3- Assembling and Repairing of LED Lamps (150 Hrs)

Soldering and De soldering techniques, tools/materials for soldering,soldering procedure, safety precautions in soldering. Soldering ofelectronic components in PCB

LED construction, working, applications and testing- advantages &disadvantages of LED Lamps. Assembling of LED lamps- Basic circuit-parts & working,

Fault finding and repair of LED lamps - Testing, identifying andrectifying component level faults-testing, identifying and rectifyingLED strip level fault.

Unit 4 - House Wiring - I (90 Hrs)

Safety precautions- First aid practice- I.E rules related to house wiring-Kerala Cinema regulation rules-Tools and Accessories- Types of wires-Ratings -Voltage drops in cables- Wire joints- Types of house wiring-PVC Conduit, Casing and capping- Fuses- re-wireable & HRC, MCB,MCCB, ELCB- Earthing- Importance- Functional and Protectiveearthing-Size of earth electrodes- Pipe earthing and Plate earthing, Earthtester, Measurement of Earth resistance, Relays- Electrical contactor.

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Module -2

House Wiring

Unit 1 - House Wiring - II (200 Hrs)

Lay out and circuit diagrams- Sub circuit calculation- Design ofDistribution board (LDB and PDB) - Wiring Practice- Series, Parallel,Series-parallel- Stair case, Master control, Bell and buzzer-Hospitalwiring- Megger, Testing of wiring installation, Wiring of specialequipments-Inverter & UPS. Code of conduct and ethics of the wire man.

Estimation of a 2/3 bedroom house wiring as project work

Illumination- Lumen and Efficacy- Incandescent lamps- Fluorescentlamps- CFL lamps- Applications of Neon lamps, Halogen lamps,Sodium Vapour lamps.

Unit 2- Magnetism (20 Hrs)

Magnets- Types- Properties- Magnetic field, Magnetic flux, Flux density,Permeability- Classification of Magnetic materials- Faraday's Laws ofElectromagnetic induction- Self induction- Mutual induction- Lenz'sLaw, Cork Screw rule, Right hand thumb rule, Eddy current andHysteresis.

Unit 3 - AC Circuits (90 Hrs)

Electrical power generation-Types of generating stations - AC sine wave- Time period, Frequency, Amplitude, RMS Value, Average Value,Form factor, Peak factor- Phase- Phase difference- Types of loads-Resistive, Inductive and Capacitive- Impedance- Series circuits (RL, RCand RLC)- Power factor and its importance- Power factor improvement.kW, kVA, kVAR. - Power and Energy- Connection of Watt meter andEnergy meter, Calculation of Energy Bill-.Methods for saving Electricalenergy in domestic installations. Uses of Tong tester and Multi meter.

Three Phase Circuits- Star and Delta connections- Phase and Linevalues.

Unit 4 - Transformers (30 Hrs)

Transformer- Working principle- Construction- Core and Shell types-Transformation ratio- Parts of L.V and H.V transformers- Cooling-Rating, Losses and Efficiency- Auto transformer - Functions ofsubstations.

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VHSE Curriculum

LEARNING OUTCOMES

The learners will be able to:

MODULE 1. BASIC ELECTRICAL & ELECTRONICS TECHNOLOGY1.1. Fundamentals of Electricity

1.1.1. Carry out the different connections of resistors.1.1.2. Explain the different factors affecting resistance.1.1.3. Explain the properties of conductors and insulators.1.1.4. Classify materials in to conductors, insulators.1.1.5. Realise the concepts of Voltage & Current.1.1.6. Connect Voltmeter & Ammeter (analog & digital) in a

circuit.1.1.7. State Ohm's Law, KCL, and KVL.

1.2 Electronic Components and Devices - I1.2.1. Identify various passive components like resistors,

capacitors &inductors used in electronic circuits.1.2.2. Decode values of resistors from colour coding.1.2.3. Test the various passive components.1.2.4. Realise the concepts of doping, P&N type semiconductor.1.2.5. Realise the concepts of formation of PN junction and diode.1.2.6. Comprehend the methods of biasing a diode.1.2.7. Plot V-I characteristics of diode.1.2.8. Test diodes using multimeter.1.2.9. Use diode as a centre- tapped rectifier.1.2.10. Use diode as a bridge rectifier.1.2.11. Realise the use of filter circuits and able to connect them in

rectifier circuits.1.3 Assembling and Repairing of L.E.D Lamps

1.3.1. State & explain Construction of LED.1.3.2. Comprehend the working of LED.1.3.3. Identify the advantages and disadvantages of LED.1.3.4. Comprehend the methods of biasing LED.1.3.5. Test LED using multimeter.1.3.6. Solder & de- solder electronic components on circuit boards

as per standard procedure.1.3.7. State & explain safety precautions in soldering.1.3.8. Test the circuit components of LED Lamps.1.3.9. De-solder the faulty components.1.3.10. Replace the faulty components.1.3.11. Re-assemble LED Bulb.

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1.4 House Wiring - I1.4.1. State & explain safety precautions.1.4.2. Comprehend IE rules related to house wiring.1.4.3. Understand Kerala cinema regulation rules.1.4.4. Apply first aid methods according to situation.1.4.5. Identify tools and accessories.1.4.6. Handle the tools safely and properly.1.4.7. Identify different wires according to rating.1.4.8. Perform wire joints.1.4.9. Perform pipe Earthing as per standards

MODULE 2. HOUSE WIRING2.1 House Wiring - II

2.1.1. Design and draw the layout & circuit diagram of an electricalinstallation.

2.1.2. Calculate the number of sub circuits according to the points& load.

2.1.3. Design distribution board of light and power circuit.2.1.4. Draw circuit diagram, estimate and practice staircase wiring.2.1.5. Draw circuit diagram, estimate and practice master control

wiring.2.1.6. Draw circuit diagram, estimate and practice bell and buzzer

wiring.2.1.7. Conduct various tests of wiring installation.2.1.8. Wire up special equipments like Inverter and UPS.2.1.9. Aware about the code of conduct and ethics in wiring.2.1.10. Explain terms like-Luminous flux, Lumen, Luminous

intensity and their units.2.1.11. Identify the type, parts and working of incandescent lamp.2.1.12. Explain the parts, construction and working of Fluorescent

lamp.2.1.13. Wire up fluorescent lamp circuit.2.1.14. Familiarize the parts, construction and working of C F L.2.1.15. Service fluorescent lamp circuit and CFL.2.1.16. Explain the applications of Neon lamp and Sodium Vapour

Lamp.2.2. Magnetism

2.2.1. Comprehending the properties of magnet.2.2.2. Define the terms of magnetism.

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VHSE Curriculum

2.2.3. Classify magnetic substances.2.2.4. State the laws and phenomenon of electromagnetic

induction.2.2.5. State the law to find the direction of magnetic field.

2.3 AC Circuits2.3.1 Classify types of electrical power generating stations.2.3.2 Comprehend various terms in A C circuits2.3.3 Classify the types of loads in AC circuits2.3.4 Comprehend power factor and its importance.2.3.5 Explain on 3 phase circuit and the types of connections2.3.6 Familiarise 3 phase circuits.2.3.7 Realise the concepts of Power and Energy.2.3.8 Calculate Power and Energy consumed in a circuit.2.3.9 Calculate domestic energy consumption.2.3.10 Explain various methods of electrical energy savings in

domestic installations2.4 Transformers

2.4.1 Identify core and shell types of transformers according toconstruction.

2.4.2 Relate current, voltage, power and number of turns intransformer.

2.4.3 Identity the parts of L.V and H.V transformers.2.4.4 Comprehend the necessity of cooling in transformers2.4.5 Comprehend various types and functions of substations

COURSE STRUCTUREThis course consists of 4 modules such as:-

Module 1: Basic Electrical and Electronics 340 hrsTechnology.

Module 2: House Wiring. 340 hrsModule 3: Solar Equipment Installation and 340 hrs

Maintenance.Module 4: Home Appliances Servicing. 340 hrs

CLASSROOM ACTIVITIES• Group Discussions.• Animated CDs.• Demonstrations.

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• General Discussions.• Quiz.• Chart preparation.• Seminar.• Project.• Collection.• Catalogue preparation.• Brain storming• Interaction with experts/successful entrepreneurs in the

field.PRACTICAL ACTIVITIES

• Practical works.• Simulated experiments.• Interaction with industrial experts.• Exhibition.• Collection.• Model preparation.• Circuit fabrication• Industrial Visits.• Survey.• Case study.• OJT

ON THE JOB TRAINING

OJT forms an integral part of vocational education. Skill educationneeds hands on experience and training in the real work environment.According to EET curriculum the learner must acquire skill in the fieldof LED lamp repairing, House wiring, Home appliance servicing andInstallation & maintenance of solar equipments. For this course OJT canbe conducted for 2weeks per year. It can be scheduled either one weekafter each module or 2 weeks together at the end of both the modules.

CERTIFICATION

Module 1 LED Light Repair Technician

Module 2 Wireman / Electrician

Module 3 Solar Equipment Installation and MaintenanceTechnician

Module 4 Electrical Home Appliance Service Technician

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VHSE Curriculum

MODULE - 1

Basic Electrical and Electronics Technology

OVERVIEW

The first module named Basic Electrical and Electronics Technologydeals with the basics of electricity, identification and testing ofelectronic components, different soldering techniques and practice ofassembling and repair of LED Lamp circuits, familiarisation of IE rules,wiring accessories, safety precautions, types of wiring and simplewiring circuits.

LIST OF EXPECTED SKILLS:• Practicing connections of passive electronic components.• Connection of Volt meter and Ammeter in a circuit• Measurement of Voltage and Current.• Decoding the value of carbon resistors.• Testing of passive electronic components• Fabrication of rectifiers.• Assembling of LED lamps.• Fault location in LED lamps.• Repairing of faulty LED Lamps

STRUCTURE OF THE MODULE

Basic Electrical & Electronics Technology

Unit No Name of unit Total Periods

1.1 Fundamentals of electricity 40

1.2 Electronic components and devices 60

1.3 Assembling and repairing of LED Lamps 150

1.4 House wiring-I 90

TOTAL PERIODS 340

30% Periods - theory sessions and 70%periods - practical activities.

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Page - 65

VHSE Curriculum

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Page - 66


Mod

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uits

and

thei

r rol

e in

redu

cing

ripp

les.

•C

onne

ct f

ilter

circ

uits

to r

ectif

ier

circ

uits.

•G

roup

Disc

ussio

n.•

Cha

rt di

spla

y.•

Prac

tical

wor

k.

•G

ener

al d

iscus

sion

•D

emon

strat

ion

•Pr

actic

al w

ork.

•G

ener

al d

iscus

sion

•Pr

actic

al w

ork

•G

ener

al d

iscus

sion

usin

g IC

T.•

Prac

tical

wor

k

•N

otes

in ac

tivity

log,

Invo

lvem

ent i

n pr

actic

alw

ork.

•In

volv

emen

t in

prac

tical

wor

k.

•N

otes

in ac

tivity

log,

•N

otes

in ac

tivity

log,

Invo

lvem

ent i

n pr

actic

alw

ork

Uni

t :

Elec

tron

ic c

ompo

nent

s an

d de

vice

s (6

0 pe

riod

s)

Page - 67

VHSE Curriculum

Mod

ule

1 :

BASI

C EL

ECTR

ICA

L &

ELE

CTRO

NIC

S TE

CHN

OLO

GY

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Sold

erin

g te

chni

ques

Type

sM

ater

ials

and

tool

s req

uire

dSo

lder

ing

proc

edur

eSk

ills:

Sold

erin

g or

ele

ctro

nic

com

pone

nts

Han

dlin

g of

tool

s•

De

Sold

erin

g te

chni

ques

Mat

eria

ls an

d to

ols r

equi

red

De

Sold

erin

g pr

oced

ure

Skill

s:D

e So

lder

ing

of c

ompo

nent

s fro

mci

rcui

t boa

rds

Han

dlin

g of

tool

s•

Safe

ty p

reca

utio

ns in

sold

erin

gSk

ills:

Obs

ervi

ngEx

plain

ing

•Li

ght

Emitt

ing

Dio

de

(LED

)Co

nstru

ctio

n,W

orki

ng,

App

licat

ion,

Adv

anta

ges

& d

isadv

anta

ges

Skill

s:Id

entif

ying

.Co

mpa

ring.

•Te

sting

and

bia

sing

of L

EDSk

ills:

Han

dlin

gO

bser

ving

Testi

ng.

The

lear

ner w

ill b

e ab

le

to:

•So

lder

ele

ctro

nic

com

pone

nts

onci

rcui

t boa

rds w

ith sk

ill.

•D

e Sol

der e

lect

roni

c com

pone

nts o

nci

rcui

t boa

rds w

ith sk

ill

•St

ate

& e

xpla

in s

afet

y pr

ecau

tions

.

•Le

aner

is a

ble

to:

Stat

e &

exp

lain

Con

struc

tion

ofLE

D•

Com

preh

end

the

wor

king

of L

EDId

entif

y th

e ad

vant

ages

an

ddi

sadv

anta

ges

of L

ED

•Co

mpr

ehen

d th

e met

hods

of b

iasin

gLE

D•

Test

LED

usin

g m

ultim

eter

.

•D

emon

strat

ion

Disc

ussio

nPr

actic

al w

ork

•D

emon

strat

ion

Disc

ussio

nPr

actic

al w

ork

•G

roup

Disc

ussio

n

usin

g IC

T

•G

roup

Disc

ussio

n

usin

g IC

TC

hart

disp

lay

and

disc

ussio

n af

ter

brai

n sto

rmin

g.

•Pr

actic

al w

ork.

•So

lder

ing s

kill

Prac

tical

act

ivity

log

•D

e Sol

derin

g sk

illPr

actic

al a

ctiv

ity lo

g

•In

volv

emen

t in

grou

pdi

scus

sion.

Act

ivity

log

•In

volv

emen

t in

Gro

updi

scus

sion.

Act

ivity

log

and

parti

cipa

tion

in d

iscus

sion

•Pr

actic

al a

ctiv

ity lo

g an

din

volv

emen

t in

prac

tical

activ

ity.

Uni

t :

Ass

embl

ing

and

repa

irin

g of

LED

Lam

ps (

150

peri

ods)

Page - 68


Mod

ule

1 :

BASI

C EL

ECTR

ICA

L &

ELE

CTRO

NIC

S TE

CHN

OLO

GY

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Ass

embl

ing

of L

ED la

mps

Bas

ic c

ircui

t, pa

rts &

wor

king

of

LED

lam

ps.

Skill

s:O

bser

ving

Sold

erin

gA

ssem

blin

g•

Faul

t fin

ding

and

rep

air

of L

EDla

mps

-Iden

tifyi

ng

&

rect

ifyin

gco

mpo

nent

leve

l fau

ltsSk

ills:

Dism

antli

ngO

bser

ving

Iden

tifyi

ng fa

ult

De

sold

erin

gR

ectif

ying

faul

tRe

ass

embl

ing

•Fa

ult

findi

ng a

nd r

epai

r of

LED

lam

ps- I

dent

ifyin

g &

rect

ifyin

g LE

Dstr

ip le

vel f

aults

Skill

s: D

isman

tling

Obs

ervi

ngId

entif

ying

faul

tR

ectif

ying

faul

tRe

ass

embl

ing

•A

ssem

ble L

ED L

amps

indi

vidu

ally

•D

isman

tle L

ED la

mp

•Te

st th

e ci

rcui

t com

pone

nts

•D

e so

lder

the

faul

ty c

ompo

nent

s•

Rep

lace

the

faul

ty c

ompo

nent

s.•

Re a

ssem

ble

LED

lam

p.

•D

isman

tle L

ED la

mp.

•Te

st th

e ci

rcui

t Stri

p•

Rec

tify

the

faul

t•

Re a

ssem

ble

LED

lam

p.

•Pr

actic

al w

ork

•Pr

actic

al a

ctiv

ity

•Pr

actic

al A

ctiv

ity

•In

volv

emen

t /pa

rtici

patio

nin

the

prac

tical

wor

kPr

actic

al a

ctiv

ity lo

g

•In

volv

emen

t /pa

rtici

patio

nin

the

prac

tical

wor

kPr

actic

al a

ctiv

ity lo

g

•In

volv

emen

t /pa

rtici

patio

nin

the

prac

tical

wor

kPr

actic

al a

ctiv

ity lo

g

Uni

t :

Ass

embl

ing

and

repa

irin

g of

LED

Lam

ps (

150

peri

ods)

Page - 69

VHSE Curriculum

Mod

ule

1 :

BASI

C EL

ECTR

ICA

L &

ELE

CTRO

NIC

S TE

CHN

OLO

GY

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Occ

upat

iona

l saf

ety

and

heal

thSa

fety

pre

caut

ions

to b

e ob

serv

ed in

hous

e w

iring

; I

E r

ules

, K

eral

aci

nem

a re

gula

tion

rule

,Fi

rst a

id p

ract

ice.

Skill

s:O

bser

ving

Expl

ainin

g•

Iden

tific

atio

n of

wiri

ng a

cces

sorie

s,ha

nd to

ols a

nd sp

ecifi

catio

nSk

ills:

Han

dlin

gO

bser

ving

Iden

tific

atio

nCl

assif

icat

ion

•Id

entif

icat

ion

and

ratin

g of

wire

s.V

olta

ge d

rops

in w

ires

Skill

s:O

bser

ving

.Id

entif

ying

.Cl

assif

ying

.In

ferri

ng.

•Pr

actic

e di

ffere

nt

wire

jo

int

tech

niqu

esSk

ills:

Wire

join

ing

tech

niqu

es.

Lean

er is

abl

e to

:•

Sta

te &

expl

ain

safe

ty p

reca

utio

ns,

Com

preh

end

IE r

ules

rel

ated

to

hous

e wiri

ngU

nder

stand

K

eral

a ci

nem

are

gula

tion

rule

s.A

pply

firs

t aid

met

hods

acco

rdin

g to

situa

tion

• Id

entif

y to

ols

and

acce

ssor

ies.

Han

dle

the

tool

s sa

fely

an

dpr

oper

ly.

•Id

entif

y di

ffere

nt w

ires a

ccor

ding

tora

ting

•Pe

rform

wire

join

ts

•G

roup

Disc

ussio

n

usin

g IC

TCh

art d

ispla

y fo

r fam

iliar

ising

rule

s&

prec

autio

ns ,

•D

emon

strat

ion

of h

and

tool

sPr

actic

e in

usin

g ha

nd to

ols

Sket

chin

g of

tool

s as a

ssig

nmen

tFi

xing

of w

iring

acc

esso

ries

usin

gpr

oper

han

d to

ols

•Co

llect

ion

Dem

onstr

atio

nCl

assif

icat

ion

Disc

ussio

nC

hart

prep

arat

ion

•R

emov

ing

of in

sula

tion

from

wire

san

d ca

bles

Dem

onst

ratio

n.Pr

actic

e of

sin

gle

&m

ulti

stran

ded

cond

ucto

rs

•In

volv

emen

t in

G D

Act

ivity

log

•Sk

ill in

han

dlin

g di

ffere

ntto

ols

Prac

tical

act

ivity

log

Ass

ignm

ent i

n th

e ac

tivity

log

•In

volv

emen

t in

colle

ctio

nan

d cl

assif

icat

ion

Disc

ussio

nA

ctiv

ity lo

gC

hart

•In

volv

emen

t in

prac

tical

wor

kPr

actic

al a

ctiv

ity lo

g

Uni

t :

Hou

se w

irin

g-I

(90

peri

ods)

Page - 70


Mod

ule

1 :

BASI

C EL

ECTR

ICA

L &

ELE

CTRO

NIC

S TE

CHN

OLO

GY

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Fam

iliar

izin

g diff

eren

t typ

es of

wiri

ngsy

stem

s, PV

C C

ondu

its -

surfa

ce an

dco

ncea

led

- PV

C ca

sing

and

capp

ing.

IE ru

les r

egar

ding

clip

Dist

ance

- fix

ing

of s

crew

s, ca

ble

bend

ing

etc

Skill

s:Cl

assif

ying

.To

ols h

andl

ing.

Fixi

ng

of

cond

uit

and

casin

g &

capp

ing.

•Id

entif

icat

ion

of p

rote

ctiv

e de

vice

sFu

se -

kit-k

at, H

RC

M C

B, M

C C

BE

L C

BSk

ills:

Obs

ervi

ngCl

assif

ying

Iden

tifyi

ng•

Earth

ing-

Impo

rtanc

e of

ear

thin

gIm

prov

ing

earth

res

istan

cePi

pe a

nd p

late

ear

thin

gfu

nctio

nal a

nd p

rote

ctiv

eea

rthin

g.Sk

ills:

Conn

ectin

gO

bser

ving

Mea

surin

gEx

perim

entin

g

•D

istin

guish

be

twee

n th

e tw

osy

stem

s of

wiri

ng.

Fix

scre

ws

and

cabl

e be

ndin

g

•Id

entit

y di

ffere

nt ty

pes o

f fus

es an

dci

rcui

t br

eake

rs.

Conn

ect F

uses

/MCB

s w

ith E

LCB/

RC

CB

•Id

entif

y th

e pi

pe e

arth

ing

and

plat

eea

rthin

g.Pr

actic

e Pi

pe E

athi

ng.

Mea

surin

g ea

rth r

esist

ance

•D

emon

strat

ion

Lay

out o

n w

iring

boa

rds

•Pr

actic

e PV

C

insu

late

d su

rface

cond

uit w

iring

and

cas

ing

capp

ing

wiri

ng o

n w

oode

n bo

ard

Dem

onstr

atio

nD

iscus

sion

Sket

chin

gC

hart

prep

arat

ion

•C

hart

disp

lay

Disc

ussio

nSk

etch

ing

Prac

tical

wor

k(F

amili

arise

the m

ater

ials

used

now

a day

s ins

tead

of s

alt &

char

coal

, GI P

ipe

etc.

thro

ugh

GD

.)

•Sk

ill in

hand

ling t

ools

Invo

lvem

ent i

n pr

actic

alw

ork

Prac

tical

act

ivity

log

•Id

entif

ying

and

con

nect

ing.

•In

volv

emen

t in

prac

tical

wor

kPr

actic

al a

ctiv

ity lo

g

Uni

t :

Hou

se w

irin

g-I

(90

peri

ods)

Page - 71

VHSE Curriculum

LIST OF PRACTICAL ACTIVITIES• Measurement of Voltage and Current.• Verification of Ohm’s law.• Testing of electronic components-resistors,capacitors,LED,diode• V-I Characteristics of diode• Fabrication of full wave bridge rectifier (with and without filter).• Fabrication of full wave centre tapped rectifier (with and without

filter).• Soldering and de soldering of electronic components.• Assembling of LED lamps.• Fault finding and repairing of LED lamps.• Identification and rectification of LED strip level faults.• Project works related to LED assembling.• Electrical Signs and Symbols.• Identification of hand tools with specifications.• Familiarisation of wiring accessories.• Identification of types of cables for different current ratings.• Practice wire joints— such as Britannia, straight, Tee, Western

union Joints.• Practice crimping thimbles/lugs of various sizes.• Practice connections and testing of MCBs and ELCB/RCCB.• Practice pipe earthing and measure earth resistance.• Practice connections of relays and electrical contactors.

Page - 72


MODULE - 2

House Wiring

OVERVIEW

House wiring circuits, illumination details, design of L.D.B & P.D.B,Circuit diagrams and wiring practices with more practical time areincluded in this module so that the learner may become confidentenough to undertake house wiring by himself/herself. This modulealso intends to issue a skill certificate in 'Electrical Wireman'. Aftersuccessfully completing EET course, the learners will be able to applyfor wireman license test conducted by Electrical Inspectorate. Basic ideaof magnetism, electrical power generation, Electrical energy billcalculation and fundamental of AC Circuits are also included in thismodule.

LIST OF EXPECTED SKILLS:• Practice House wiring.• Wiring installation testing.• Installation and Servicing of Fluorescent Lamp circuit.• Connection of watt meters and Energy meters• Design and wire up a Light Distribution Board (LDB) wiring.• Design and wire up a Power Distribution Board (PDB) wiring.• Prepare Estimation of a 2/3 bedroom house.STRUCTURE OF THE MODULE

HOUSE WIRINGPeriods: 340

Unit No. Name of units Periods

2.1 House Wiring - II 200

2.2 Magnetism 20

2.3 A.C. Circuits 90

2.3 Transformers 30

TOTAL PERIODS 340

30% Periods - theory sessions and70% periods - practical activities.

Page - 73

VHSE Curriculum

Mod

ule

2 :

Hou

se W

irin

g

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Layo

ut

&

circ

uit

diag

ram

of

an

elec

trica

l ins

talla

tion.

Skill

s :Cl

assif

ying

.O

bser

ving

.Sk

etch

ing.

•Su

b ci

rcui

t cal

cula

tion

Skill

s :Cl

assif

ying

Obs

ervi

ngFa

mili

arizi

ngCa

lcul

atio

n.•

Des

ign

and

prac

tice

of d

istrib

utio

nbo

ard

LDB

&PD

BSk

ills :

Dem

onstr

atin

gO

bser

ving

Sket

chin

g•

Con

nect

ion

and

testi

ng o

f Se

ries

circ

uits.

(sur

face

con

duit

syste

m)

Skill

s:H

andl

ing

tool

s and

in

strum

ent.

Wiri

ng.

•C

onne

ctio

n an

d te

sting

of

Para

llel

circ

uits.

(sur

face

con

duit

syste

m)

Skill

s:H

andl

ing

tool

s and

in

strum

ent.

Wiri

ng.

The

lear

ner w

ill b

e ab

le

to:

•D

esig

n an

d dr

aw t

he l

ayou

t &

circ

uit

diag

ram

of

an

el

ectri

cal

insta

llatio

n.

•C

alcu

late

the n

umbe

r of s

ub ci

rcui

tsac

cord

ing

to th

e po

ints.

Des

ign d

istrib

utio

n boa

rd of

ligh

t and

pow

er c

ircui

t.

•D

esig

n dist

ribut

ion b

oard

of li

ght a

ndpo

wer

circ

uit.

Prac

tice

distr

ibut

ion

boar

d w

iring

.

•W

ire u

p se

ries w

iring

circ

uit i

n PV

Csu

rface

con

duit

syste

m.

•W

ire u

p pa

ralle

l w

iring

circ

uit

inPV

C su

rface

con

duit

syste

m.

•C

hart

disp

lay

Sket

chin

gD

emon

strat

ion

usin

g IC

T

•D

emon

strat

ion

Calc

ulat

ion

Disc

ussio

n

•D

emon

strat

ion

Gro

up d

iscus

sion

Prac

tical

wor

k.

•D

raw

ing

lay

out,

Sele

ctin

g w

iring

acc

esso

ries,

Prac

tice

on w

ork

boar

d an

d

te

sting

of t

he

w

iring

.•

Dra

win

g la

y ou

t,

Se

lect

ing

wiri

ng

a

cces

sorie

s,

Pr

actic

e on

wor

k

bo

ard

and

testi

ng o

f the

wiri

ng.

•C

ircui

t dia

gram

pre

parin

gsk

ills.

Act

ivity

log

•In

volv

emen

t in

grou

pdi

scus

sion

Act

ivity

log

•In

volv

emen

t in

grou

pdi

scus

sion

Act

ivity

log

&Pr

actic

al a

ctiv

ity lo

g

•In

volv

emen

t in

prac

tical

wor

k.Pr

actic

al a

ctiv

ity lo

g.

•In

volv

emen

t in

prac

tical

wor

k.Pr

actic

al a

ctiv

ity lo

g

Uni

t : H

ouse

Wir

ing

- II

(2

00 p

erio

ds)

Page - 74


Mod

ule

2 :

Hou

se W

irin

g

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Con

nect

ion

and

testi

ng o

f Se

ries

para

llel

circ

uits.

(sur

face

con

duit

syste

m)

Skill

s:H

andl

ing

tool

s and

in

strum

ent.

Wiri

ng.

•B

ell a

nd b

uzze

rW

iring

.Sk

ills :

Obs

ervi

ng.

Sket

chin

g.W

iring

.•

Testi

ng o

f ele

ctric

al in

stalla

tion.

Skill

s :O

bser

ving

.Id

entif

ying

.In

stalla

tion

testi

ng sk

ills

•W

iring

of I

nver

ter &

UPS

Skill

s :Sk

etch

ing.

Iden

tifyi

ng.

Wiri

ng a

nd C

onne

ctin

g.•

Cod

e of

con

duct

and

eth

ics

by t

hew

irem

anSk

ills :

Ana

lysin

gcl

assif

ying

•W

ire up

serie

s-pa

ralle

l wiri

ng ci

rcui

tin

PV

C s

urfa

ce c

ondu

it sy

stem

.

•D

raw

la

y ou

t, ci

rcui

t di

agra

m,

estim

ate

and

prac

tice

Bel

l an

dbu

zzer

wiri

ng.

•C

ondu

ct v

ario

us t

ests

of w

iring

insta

llatio

n.

•W

ire u

p sp

ecia

l eq

uipm

ents

like

Inve

rter

and

UPS

•A

war

e ab

out

the

code

of

cond

uct

and

ethi

cs in

wiri

ng.

•D

raw

ing

lay

out,

Sele

ctin

g w

iring

acc

esso

ries,

Prac

tice

on w

ork

boar

d an

d

te

sting

of t

he

w

iring

.•

Dem

onstr

atio

nG

roup

disc

ussio

n.Pr

actic

al w

ork

•D

emon

stra

tion.

Disc

ussio

n.Pr

actic

al w

ork.

•Sk

etch

ing

Dem

onstr

atio

nD

iscus

sion

Prac

tical

wor

k

•G

ener

al d

iscus

sion

•In

volv

emen

t in

prac

tical

wor

k.Pr

actic

al a

ctiv

ity lo

g

•In

volv

emen

t in

grou

pdi

scus

sion

Act

ivity

log

&Pr

actic

al a

ctiv

ity lo

g.

•In

volv

emen

t in

Disc

ussio

nPr

actic

al a

ctiv

ity lo

g.

•In

volv

emen

t in

disc

ussio

n.Pr

actic

alA

ctiv

ity lo

g.

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

Uni

t : H

ouse

Wir

ing

- II

(2

00 p

erio

ds)

Page - 75

VHSE Curriculum

Mod

ule

2 :

Hou

se W

irin

g

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Illum

inat

ion-

Term

s-Lu

min

ous f

lux

Lum

enLu

min

ous i

nten

sity

And

thei

r uni

tsSk

ills

:id

entif

ying

Clas

sifyi

ngO

bser

ving

.•

Inca

ndes

cent

lam

p-

Con

struc

tion

and

wor

king

Skill

s:Id

entif

ying

Clas

sifyi

ngO

bser

ving

.•

Fluo

resc

ent l

amp-

C

onstr

uctio

n and

wor

king

.El

ectri

cal c

ircui

t dia

gram

and

wiri

ng.

Skill

s :Id

entif

ying

Obs

ervi

ngTe

sting

.C

onne

ctin

g.•

C F

L P

arts,

C

onstr

uctio

n an

dw

orki

ngSk

ills:

iden

tifyi

ngO

bser

ving

.C

onne

ctin

g.•

Trou

ble s

hoot

ing

of F

luor

esce

nt la

mp

circ

uit a

nd C

FLSk

ills

Ana

lysin

g.Tr

oubl

e sho

otin

g.•

App

licat

ions

of

Neo

n la

mp

and

Sodi

um V

apou

r Lam

pSk

ills:

Iden

tifyi

ngO

bser

ving

.

•Ex

plai

n te

rms l

ike

-Lu

min

ous f

lux

Lum

enLu

min

ous i

nten

sity

and

thei

r uni

ts.

•Id

entif

y th

e pa

rts a

nd w

orki

ng o

fin

cand

esce

nt la

mp

•Ex

plai

n th

e pa

rts, c

onstr

uctio

n an

dw

orki

ng o

f Flu

ores

cent

lam

p.W

ire u

p flu

ores

cent

lam

p ci

rcui

t.

•Fa

mili

ariz

ing t

he pa

rts , c

onstr

uctio

nan

d w

orki

ng o

f CFL

•Se

rvic

e flu

ores

cent

lam

p ci

rcui

t and

CFL

.

•Ex

plai

n th

e ap

plic

atio

ns o

f N

eon

lam

p an

d So

dium

Vap

our L

amp.

••G

roup

disc

ussio

nD

emon

strat

ion

usin

g CT

Cha

rt pr

epar

atio

n

•D

emon

stra

tion.

Disc

ussio

n.

•D

emon

stra

tion.

Prac

tical

wor

k.

•D

emon

stra

tion.

Prac

tical

wor

k.

•Te

sting

.Pr

actic

al w

ork.

•D

emon

stra

tion.

Disc

ussio

n.

•In

volv

emen

t in

grou

pdi

scus

sion

char

tpre

para

tion

Act

ivity

log

•In

volv

emen

t in

grou

pdi

scus

sion.

Act

ivity

log

•In

volv

emen

t in

prac

tical

wor

k.Pr

actic

al a

ctiv

ity lo

g

•In

volv

emen

t in

prac

tical

wor

k.Pr

actic

al a

ctiv

ity lo

g.

•In

volv

emen

t in

prac

tical

wor

k.Pr

actic

al a

ctiv

ity lo

g.

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

Uni

t : H

ouse

Wir

ing

- II

(2

00 p

erio

ds)

Page - 76


Mod

ule

2 :

Hou

se W

irin

g

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Prop

ertie

s of

mag

net

Skill

s :ob

serv

ing

Iden

tifyi

ng•

Term

s as

soci

ated

with

mag

netis

mM

agne

tic fi

eld

Mag

netic

flux

Flux

den

sity

Perm

eabi

lity

Para

mag

netic

, di

amag

netic

Ferr

omag

netic

Skill

s :Id

entif

ying

Clas

sifyi

ngFa

mili

arizi

ng•

Fara

day'

s la

ws

of e

lect

rom

agne

ticin

duct

ion

Self

indu

ctio

nM

utua

l ind

uctio

nSk

ills:

fam

iliar

izing

Iden

tifyi

ng•

Law

s us

ed t

o fin

d th

e di

rect

ion

ofm

agne

tic fi

eld

Cor

k sc

rew

rul

eR

ight

han

d th

umb

rule

Skill

s :fa

mili

arizi

ngId

entif

ying

Obs

ervi

ng

The

lear

ner w

ill b

e ab

le

to:

•C

ompr

ehen

d th

e pr

oper

ties

ofm

agne

t

•de

fine

the

term

s of

mag

netis

mcl

assif

y m

agne

tic s

ubsta

nces

•St

ate

the

law

s an

d ph

enom

enon

of

elec

trom

agne

tic in

duct

ion

•St

ate t

he la

w to

find

the d

irect

ion

ofm

agne

tic fi

eld

•de

mon

strat

ion

brai

n sto

rmin

gdi

scus

sion

•de

mon

strat

ion

brai

n sto

rmin

gdi

scus

sion

clas

sific

atio

nco

llect

ion

•de

mon

strat

ion

disc

ussio

nI C

Tco

llect

ion

•I C

TD

emon

strat

ion

Disc

ussio

n

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

•In

volv

emen

t in

disc

ussio

nco

llect

ion

Act

ivity

log

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

Uni

t :

Mag

netis

m

(20

per

iods

)

Page - 77

VHSE Curriculum

Mod

ule

2 :

Hou

se W

irin

g

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Elec

trica

l pow

er g

ener

atio

n-ty

pes

Subs

tatio

ns-fu

nctio

ns a

nd ty

pes

Dist

ribut

ion

-type

sSk

ills :

fam

iliar

izing

Clas

sifyi

ngA

naly

zing

•A

C c

ircui

tsA

C

sin

e w

ave

,tim

e pe

riod

,fre

quen

cy,

R M

S v

alue

, av

erag

eva

lue

, fo

rm f

acto

r ,

peak

fac

tor,

max

imum

va

lue,

ph

ase

, ph

ase

diff

eren

ceSk

ills :

fam

iliar

izing

Clas

sifyi

ngA

naly

zing

Obs

ervi

ngSk

etch

ing

•Ty

pes o

f loa

dR

esist

ance

, Ind

ucta

nce,

Cap

acita

nce

AC

thro

ugh

RL,R

C,RL

C se

ries

circ

uit

Pow

er f

acto

r an

d its

impo

rtanc

e•

Thre

e ph

ase

circ

uits

Star

and

del

ta c

onne

ctio

nsPh

ase

and

line

valu

esSk

ills :

Conn

ectin

g Sk

etch

ing

Fam

iliar

ising

The

lear

ner w

ill b

e ab

le

to:

•C

ompr

ehen

d va

rious

ty

pes

and

func

tions

of s

ub st

atio

ns.

Cla

ssify

di

ffere

nt

type

s of

distr

ibut

ion

syste

m

•D

efin

e th

e va

rious

term

s in

A

Cci

rcui

tsCo

mpr

ehen

ding

on

tim

e pe

riod

frequ

ency

, R

M S

val

ue,

aver

age

valu

e ,

form

fac

tor

, pe

ak f

acto

r,m

axim

um

valu

e,

phas

e ,

phas

edi

ffer

ence

•C

lass

ify th

e ty

pes o

f loa

dFa

mili

arisi

ng v

ario

us se

ries c

ircui

tG

ener

al d

iscus

sion

on p

ower

fact

oran

d its

impo

rtanc

e•

Disc

uss

3 ph

ase

circ

uit

and

itscl

assif

icat

ion

Fam

iliar

ise3

phas

e ci

rcui

tsSo

lve S

impl

e pro

blem

s

•I C

TG

roup

Disc

ussio

n.Cl

assif

icat

ion

Cha

rt pr

epar

atio

n

•I C

TG

roup

Disc

ussio

n.Cl

assif

icat

ion

Cha

rt pr

epar

atio

n

•Cl

assif

icat

ion

Dem

onstr

atio

nD

iscus

sion

Cha

rt pr

epar

atio

n•

Dem

onstr

atio

nD

iscus

sion

Sket

chin

gC

hart

Prep

arat

ion

Prob

lem

solv

ing

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

Uni

t : A

.C. C

ircu

its

(9

0 pe

riod

s)

Page - 78


Mod

ule

2 :

Hou

se W

irin

g

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Pow

er, E

nerg

y,C

onne

ctio

n of

Wat

tmet

er,

Ener

gym

eter

Skill

s :O

bser

ving

.Ex

perim

entin

g.H

andl

ing

Con

nect

ing.

Prob

lem

solv

ing.

•En

ergy

calc

ulat

ion a

nd E

nerg

y sav

ing

met

hods

.Sk

ills :

Conn

ectin

gC

olle

ctin

g an

d re

cord

ing.

Prob

lem

solv

ing.

•R

ealis

e th

e co

ncep

ts of

Pow

er a

ndEn

ergy

.C

alcu

late

Po

wer

an

d En

ergy

cons

umed

in a

circ

uit.

•Ca

lcul

ate

dom

estic

en

ergy

cons

umpt

ion.

Expl

ain

vario

us m

etho

dsof

ele

ctric

al e

nerg

y sa

ving

s.

•G

roup

Disc

ussio

n.M

easu

rem

ent o

f Pow

er b

y V

-I an

dw

attm

eter

met

hods

.C

onne

ctio

n of

Ene

rgy

met

er a

ndC

alcu

latio

n of

erro

r.

•G

ener

al D

iscus

sion

on P

ower

of

diffe

rent

load

s.En

ergy

cal

cula

tion.

Fiel

d su

rvey

on

ener

gy s

avin

gsm

etho

ds.

•Sk

ill o

f Con

nect

ion.

Not

es in

Pra

ctic

al a

ctiv

itylo

g.

•A

ctiv

ity lo

g bo

ok.

Uni

t : A

.C. C

ircu

its

(9

0 pe

riod

s)

Page - 79

VHSE Curriculum

Mod

ule

2 :

Hou

se W

irin

g

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Tran

sfor

mer

-Pr

inci

ple o

f wor

king

Con

struc

tion,

type

sRa

ting

Tran

sfor

mat

ion

ratio

Skill

s:Cl

assif

ying

Iden

tifyi

ngPr

oble

m so

lvin

g.•

Parts

and

Pro

tect

ive

devi

ces

of 3

Phas

e tra

nsfo

rmer

s.Sk

ills :

Iden

tifyi

ng ,

•Lo

sses

in tr

ansf

orm

ers

Coo

ling

of tr

ansf

orm

ers

Nec

essi

tySk

ills :

Iden

tifyi

ngCl

assif

ying

The

lear

ner w

ill b

e ab

le

to:

•Id

entif

y th

e di

ffere

nt

type

s of

trans

form

ers

acco

rdin

g to

cons

truct

ion

Rel

ate

curre

nt, v

olta

ge, p

ower

and

num

ber o

f tur

ns in

tran

sfor

mer

.

•Id

entit

y th

e pa

rts o

f LV

and

HV

trans

form

ers

•C

ompr

ehen

d th

e ne

cess

ity

ofco

olin

g

•D

iscus

sion

Cha

rtSi

mpl

e pro

blem

solv

ing

Dem

onstr

atio

nSk

etch

ing

Act

ivity

log

•C

hart

disp

lay

Disc

ussio

nI C

TFi

eld v

isit

•C

hart

disp

lay

Disc

ussio

n

•In

volv

emen

t in

disc

ussio

nan

d pr

oble

m so

lvin

gA

ctiv

ity lo

g

•In

volv

emen

t in

disc

ussio

nan

d fie

ld v

isit

Fiel

d vi

sit re

port

Act

ivity

log

•In

volv

emen

t in

disc

ussio

nA

ctiv

ity lo

g

Uni

t :T

rans

form

ers

(4

0 pe

riod

s)

Page - 80


DETAILED UNIT ANALYSIS

Module I BASIC ELECTRICAL & ELECTRONICS TECHNOLOGY

Unit 1.1 Fundamentals of ElectricityThe first unit fundamentals of electricity comprises of the basics ofelectricity which enable the learners to reinforce the ideas regardingdifferent circuit connections of resistors and laws related to electriccircuits. This unit also aims to familiarise the learners regarding thecalculation of electricity bill.

LIST OF PRACTICAL ACTIVITIES• Layout, circuit diagrams and estimation of parallel, series and

series-parallel circuits.• Estimate and wire up a circuit to control one lamp by one switch.• Estimate and wire up a circuit to control two lamps in series by one

switch.• Estimate and wire up a circuit to control two lamps

independently.• Estimate and wire up a circuit to control two lamps through two

SPST switches to burn dim or one lamp bright.• Estimate and wire up a circuit to control two lamps through one

SPDT switches to burn dim or one lamp bright.• Estimate and wire up a circuit to control one lamp from two

different places.• Estimate and wire up a circuit for a calling bell and a buzzer.• Estimate and wire up a master control wiring.• Estimate and wire up a power plug socket wiring.• Estimate and wire up a series parallel test board wiring.• Design and wire up a Light Distribution Board (LDB) wiring.• Design and wire up a Power Distribution Board (PDB) wiring.• Assemble and install a fluorescent lamp.• Familiarisation of star and delta connections.• Measurement of Power and Power factor.• Testing for error in single phase Energy meter.• Estimation of a 2/3 bedroom house wiring as project work

Page - 81

VHSE Curriculum

Mod

ule

1 :

BASI

C EL

ECTR

ICA

L &

ELE

CTRO

NIC

S TE

CHN

OLO

GY

Idea

s/C

once

pts/

Skill

Lear

ning

Out

com

esSu

gges

ted

Act

iviti

esA

sses

smen

t•

Res

istan

ce, c

onne

ctio

ns a

nd f

acto

rsaf

fect

ing

resis

tanc

e.Sk

ills:

Iden

tifyi

ngCo

mpa

rison

skill

.O

bser

vatio

n sk

ill.

Skill

s of c

onne

ctin

g re

sisto

rs.

•Pr

oper

ties

of

C

ondu

ctor

s an

dIn

sula

tors

Skill

s:O

bser

ving

.Cl

assif

ying

.A

naly

sing.

•V

olta

ge, C

urre

nt,

Vol

tmet

er a

nd A

mm

eter

(ana

log

and

digi

tal).

Skill

s:H

andl

ing

Con

nect

ing.

•O

hm's

Law

, KCL

& K

VL.

Skill

s:O

bser

ving

.M

easu

ring

and

char

ting.

Expe

rimen

ting.

The

lear

ner w

ill b

e ab

le

to:

•C

arry

out

the

diffe

rent

con

nect

ions

of r

esist

ors.

Expl

ains

th

e di

ffere

nt

fact

ors

affe

ctin

g re

sista

nce.

•Ex

plai

ns

the

prop

ertie

s of

cond

ucto

rs a

nd in

sula

tors

.C

lass

ify m

ater

ials

in to

con

duct

ors,

insu

lato

rs.

•R

ealis

e th

e co

ncep

ts of

Vol

tage

&C

urre

nt.

Conn

ect

Vol

tmet

er.

Conn

ect

Am

met

er.

•Ex

perim

ent:

1.O

hm's

Law

.2.

KC

L3.

KV

LFo

rmul

ate

Ohm

's la

w.

Und

ersta

nd K

CL a

nd K

VL.

•G

ener

al d

iscus

sion

on r

esist

ance

and

fact

ors

affe

ctin

g re

sista

nce.

Dem

onstr

atio

n of

re

sisto

rsco

nnec

ted

in p

aral

lel a

nd s

erie

sPr

actic

al

wor

k of

serie

s an

dpa

ralle

l con

nect

ions

•C

olle

ctio

n of

co

nduc

tors

an

din

sula

tors

.G

roup

disc

ussio

n- p

rope

rties

of

cond

ucto

rs a

nd in

sula

tors

.

•G

ener

al d

iscus

sion

Sim

ple e

xper

imen

t-Con

nect

ions

of

Vol

tmet

er a

nd A

mm

eter

•Ex

perim

ent

Gro

up D

iscus

sion.

Gen

eral

Disc

ussio

n

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Page - 82


Content: Resistance, connections and factors affectingresistance

Suggested activity 1.1.1: Demonstration, Practical work

Demonstration by the teacher

Take resistance wires of different lengths and thickness. Measure theirresistances by ohmmeter. Compare the values and discuss.

Take two rheostats/lamp loads. Measure their resistances usingohmmeter. Connect them in series and Parallel. Measure the combinedresistances.

Discussion Points:• Resistance.• Factors affecting resistance.• Series and Parallel connections.• Effective resistances in both cases.• Equations (R=R1+R2. 1/R=1/ R1+1/ R2).• Resistivity.• Problems related to series, parallel and series-parallel

connections.

Practical work by the students:Each learner should do the series and parallel connections.

Content: Properties of Conductors and Insulators.

Suggested activity 1.1.2: Collection, Group Discussion.

Group the learners. Collect different materials such as copper,aluminium, iron, wood, plastic, rubber, etc. Classify them as conductorsand Insulators.

Conduct group discussions:• Resistivity and Conductivity.• Effect of temperature.

Content: Voltage, Current, Voltmeter and Ammeter.

Suggested activity 1.1.3: General Discussion, SimpleExperiment.• Potential.• Potential difference.• Flow of electrons.• Voltage & Current.• Connections of Voltmeter, Ammeter (digital and analog).

Page - 83

VHSE Curriculum

Simple Experiment:Connect of Ammeter and Voltmeter (digital and analog) to supplywith a lamp load.Measure the current and voltage.

Content: Ohm's Law, KCL & KVL.

Suggested activity 1.1.4: Experiment.Connect volt meter and ammeter to a lamp load.Change the supply.Note down the readings and verify Ohm's law.Connect the Lamp loads in a closed circuit with voltmeters inparallel with each load.Connect the circuits to supply with voltmeters and ammeters.Verify KCL and KVL.

Sample TE questions• 'Ammeter is a low resistance meter'-substantiate the statement.• Two resistances of 100 Ω and 150 Ω are given to you. Connect these

resistors in such a way that the total resistance will be less than100Ω. Also find the total value of the combination.

• State the law which is used to find the direction and magnitude ofcurrent flowing through the junction in an electric circuit.

Page - 84


LIST OF TOOLS AND EQUIPMENTS

Sl No Item Description Specifications Quantity1 Steel Rule 300mm 252 Screw Driver 200mm 253 Screw Driver 100mm 254 Terminal Screw Driver 75mm 25

(connector)5 Electricians Knife Db 256 Ball Peen Hammer 0.25kg 257 Combination Pliers- Insulated 200mm 258 Neon Tester 500 Volt 259 Trisquare 200mm 5

10 Small Crimping Tools 10 - 100 Mm 5(Assorted)

11 Spanner Set De Set Of 6 From 106x7 To 16x7

12 Screw Driver Set( Set Of 5) 100 - 300 Mm 2513 File Half Round Second Cut 250 Mm 1014 File Round Second Cut 150 Mm 1015 File Flat 300 Mm Rough 516 Hack Saw 1017 Wiring Board 3mx1m 2518 Hand Drilling Machine Assorted Bits 1

With Drill Bits19 Power Drill 12 Mm, 1

Capacity 250v20 Side Cutting Plier Insulated 200 Mm 1021 Flat Nose Plier Insulated 150 Mm 1022 Round Nose Plier Insulated 200 Mm 1023 Long Nose Plier Insulated 200 Mm 1024 Screw Driver Heavy Duty 200 Mm & 300 Mm 30 Each25 Firmer Chisel 1 Inch & ½ Inch 5 Each26 Wire Stripper 150 Mm 1027 Cross Peen Hammer 0.50 Kg 1028 Rawal Tool Holder &Bit No 8,10,14 &16 1 Set29 Poker With Insulated Handle 1030 Allen Key Set 5-11 1 Set31 Bench Vice 150 Mm 132 Rubber Gloves 5000 Volts 2 Pair33 All Types Cfl Lamp Sets 5w,15w,25w 5 Each34 Dc Regulated Power Supply 0-30 V 2

Page - 85

VHSE Curriculum

35 Multi Meter 0-5,100,200, 5 Each(Analog & Digital) 500 Ma

0-100,1000,10000 Ohms

0-150,300,600 Volts Ac/Dc

36 Ammeter Ac/Dc 0-5 A , 0-10 A , 5 Each(Analog & Digital) 0-15a

37 Ammeter Dc 0-500ma , 0-1 A , 5 Each(Analog & Digital) 0-5a

38 Megger 500volts 2(Insulation Tester)

39 Voltmeter(dc) Analog 0-1 V,0-3 V, 5 Each0- 5 V, 0-30 V

40 Voltmeter(dc) Digital 0-1 V,0-3 V, 5 Each0- 5 V, 0-30 V

41 Earth Tester 500v 242 Watt Meter 250v & 500v, 5a, 2 Each

10a Unity Pf43 Energy Meter Digital Single Phase,10 A 244 Energy Meter Digital Three Phase,10 A 245 Tong Tester 500 V,100a 146 Magnifying Lens 547 First Aid Kit 1

Wiring AccessoriesSl No Item Description Specifications Quntity

1 PVC Conduit 13 Mm 152 PVC Conduit 20 Mm 103 PVC L-bow ,Bend,Y, 13 Mm 25 Each

3-way,T,4-way4 PVC L-bow ,Bend, 20 Mm 25 Each

Y,3-way,T,4-way5 1mm2 Pvc Insulated 650 Volts 3 Coils

Copper Wire6 2.5mm2 Pvc Insulated 650 Volts 1 Coil

Copper Wire7 Earth Wire 18 Swg Copper 1 Coil8 ICDP 16 A,240 V 29 ICTP 32 A,415 Volts 2

10 Kit Kat Fuse Unit 5 A, 240 V 1511 Neutral Link 5 A,250 V 512 Isolator Single Phase, 2

2 Pole, 20a,240 V

Page - 86


13 MCB 6a/10a,240 V 1014 ELCB 240 V Leakage 1

Current 32 Ma15 Batton Holder 5 A 240 V 2016 Ceiling Rose 5 A 240 V 10

17 Tube Light With Frame 5 A,240 V 5

Electronics

Sl. No Item Description Specifications Quantity

1 Pn Junction Diodes In 4001, In4007, 10 DozenLed (White) Each

2 Transformer 230/6v,6-0-6/12v/ 5 Nos12-0-12v Each

3 Capacitors 100µf/25v, 1000µf/ 5 Dozen25v,10µf/160v Each

1 µf/400v,0.22 µf/ 5 Dozen400v (Polyester) Each

4 Resistors Different Values, 10 Dozen0.25w Each

5 Resistors Different Values, 5 Dozen0.5w Each

6 De Soldering Pump 5

7 LED Lamp kit (5 w) 25

8 Power Analyser 2

9 Soldering Iron 30/50w-230v 25Changeable Bits

10 Bread Board 10

11 General PCB 20

12 Soldering Lead 5 Coils

13 Soldering Flux 50g Pack 5

14 Single Strand Connecting Wire 50 M

15 Soldering Station

16 Light Emitting Diodes Bright White 25 Dozens

17 LED Strip 25 Nos

Page - 87

VHSE Curriculum

REFERENCES BOOKS• K.B. Bhatia (2014) Study of Electrical appliance and Devices.

Khanna Publishers , New Delhi.• G.K. Mithal (2006) Text book of Electrical Engineering.

G.K.Publications• B.L. Thereja,A.K.Theraja- Electrical Technology Vol.1 and 2,

(2013), S chand publications.• K.B. Raina.,S.K.Bhattacharya (2015) Electrical design estimating

and costing, New age international Ltd. Publications.• Dr. S.L Uppal., G.C Garg (6th Edition) Electrical wiring estimating

and costing, Khanna Publishers , New Delhi.• P V Gupta,(2013), Introductory course in electromagnetic field,

Dhanpat Rai Publications• M.L. Anwani, Basic Electrical Engineering,(3rd Edition), Dhanpat

Rai Publications.• V. K. Mehta,Rohith Mehta(2014) Principles of Electronics, S Chand

Publications• Harish C Roy,(2013) Power Electronics, Umesh Publications• Achuth Sankar S Nair & K.Madanan (2006) Electronics- Basic

Principles, State of language,Kerala• N N Bhargava, D C Kulshreshta, S C Gupta(2006) Basic Electronics

& Linear circuits, Tata Mc Graw hill Publications• N Alagappan, S Ekambaram (1999) , Electrical Estimating and

Costing, Tata Mc Graw hill Publications

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