Course Objectives

1. Understand key elements of electrical and electronics appliances.
2. Understand key elements of RAC (AC and Refrigerators).
3. Understand domestic wiring and layout
4. Basic safety practices.

Learning Outcomes

1. Repair maintenance of the basic electrical and electronics appliances.
2. Identification to protective devices
3. Repair and maintenance of the split AC and Refrigerators
4. Able to do domestic wring and maintenance.

Course Syllabus

Module 1: Basic safety practices (3hrs)

Protective clothing: leather or asbestos gloves, flame proof aprons, flame proof overalls buttoned to neck, cuffless (without folds), trousers, reinforced footwear, helmets/hard hats, cap and shoulder covers, ear defenders/plugs, safety boots, knee pads, particle masks, glasses/goggles/visors
Safe working practices: using protective clothing and equipment; putting up and reading safety signs; handle tools in the correct manner and store and maintain them properly; keep work area clear of clutter, spillage and unsafe object lying casually; while working with electricity take all electrical precautions like insulated clothing, adequate equipment insulation, use of control equipment, dry work area, switch off the power supply when not required, etc.; safe lifting and carrying practices; use equipment that is working properly and is well
Maintained; take due measures for safety while working at heights, etc.

Module 2: Maintenance & Repair of house hold gadgets (30hrs)

Understand drawings, circuit diagrams and electrical code specifications of the electrical equipment and gadgets.Understand the capacity in kW, load in Amperes and power consumption in kWH for each appliance.
Practice- preventive maintenance, regular cleaning, oiling, greasing of household gadgets like fans, cooler, water pump motors etc.
Practice- Replacement of damaged switches, MCB, fan- capacitor, regulator, and lighting points i.e. holder, choke, starters, water coolers and their pump & motor.
Practice- Maintenance of electrical equipment’s like- iron, toaster, induction-plate & cooker,ups ,gyser and inverter.
Practice - Soldering of winding wires, cables and their joints in electrical gadgets

Module 3: RAC. (15hrs)

Introduction to the working principle of the air conditioner, familiarization to tools used RAC works basic maintenance of the AC and refrigerator and the Gas filling – according to the gas types.

Practice: Tools familiarization during the RAC works
Practice: Basic maintenance of AC.
Practice: Basic maintenance of Refrigerator
Practice: Gas filling with all gauges and specification.

Project- (12hrs)

Students will go to the near by community for the free servicing of the domestic appliance they have learnt during the training period.
(trainer is recommended to visit with the students)

Session Plan

Session 1

Demo – Understand drawings, circuit diagrams and electrical code specifications of the electrical equipment and gadgets.
Practice - Practicing in different appliance by giving its manual.

Session 2

Demo – Understand the capacity in kW, load in Amperes and power consumption in kWH for each appliance.
Practice –Survey on load calculation of different room and work place in campus .
Web links –
Domestic Electrical Distribution
Load calculation For House wiring

Session 3

Demo – Demonstration on preventive maintenance, regular cleaning, oiling, greasing of household gadgets like fans, cooler, water pump motors.
Practice – Practicing of preventive maintenance report and greasing of motors

Web links –
How to oil/lubricant a fan motor/ fixing seized fan motor

Session 4

Demo – Maintenance of electrical equipment’s like- iron, toaster, induction-plate & cooker.
Practice – Repair of iron box

Web links –
How to repair iron at home

Session 5

Demo – Demonstration repair of ups.
Practice –practice in ups.

Web links –
How to Repair UPS

Session 6

Demo – Demonstration repair of inverter.
Practice –practice in inverter.
Web links –
Repairing of inverter

Session 7

Demo – Demonstration repair of gyser.
Practice –practice in gyser.
Web links –
Internal parts of electric geyser

Session 8

Demo – Demonstration repair of toster.
Practice –practice in toster.
Web links –
How to repair a toaster

Session 9

Demo – Demonstration repair of exhust fan.
Practice –practice in exhust fan.
Web links –
Exhaust fan repairing

Session 10

Demo – Demonstration of induction-plate & cooker
Practice- practice on the induction plate and cooker
Web links –
Maintenance of induction cooker

Session 11

Demo - Soldering of winding wires, cables and their joints in electrical gadgets.
Practice – soldering practice and different types of joint

Web links –
How to tin a wire

Session 12

Demo – Demonstration of all the tools used during RAC work.
Practice – Tools familiarization during the RAC works.
Web links –
Tools & equipments used in RAC
Gas charging ,R410A R22 R32 pressures
How to refill air-condition refrigerant R22

Session 13

Demo – Basic maintenance of AC..
Practice – Hand on practice on filter cleaning and outdoor maintenance
- Gas filling and draining.

Session 14

Demo – Basic maintenance of Refrigerator
Practice – Basic maintenance of Refrigerator ( compressor, relay and capacitor) .
Web links –
Refrigerator working
How to identify refrigerator basic problems
Refrigerator Gas Charging and fridge Repair. R134a Refrigerant .

Session 15

Demo-Community Action Learning Program for repairing and maintenance on field.

Session 16

Demo – Demonstration PPE and equipment while working on field.

Session 17-20

Project

Case Studies

Case Studies