EET 270 Safety

First Goal What is the first goal of this Lab?

Answer: To get you out of here without injury!

Second Goal: Learn Motor Controls

Lab PPE You must wear safety glasses at all times during lab or while working on trainers

Trainers- Dangers Electrical hazard Lifting Hazard Drop Hazard Rolling Hazard Escape Hazard (snap, crackle, run)

Electrical Hazard High Voltage: 120/208 VRMS Arch/ Flash Electrocution

Electrical Hazard prevention Trainers MUST BE UNPLUGGED while building the circuit All troubleshooting will be done while trainer is unplugged (Cold)

Power Up-Sequence 1)The circuit MOST HAVE a Power Indicator and E-Stop Circuit 2)Check Circuit for Shorts 3)Have circuit checked by Instructor 4)Notify those nearby before plugging in 5)Identify/clear your escape route

Power Up- Part 2 6) Put Hand on Man Power Switch 7) Turn away and warn others 8) Turn on power 9) Place finger on start switch 10) Turn away and warn others 11) Press Start

If Something goes wrong 1)Play it Safe! 2)Remove power a)Power switch b)Power Plug c)Lab Power

If a Fuse is blow Do not reset a circuit breaker or replace a fuse unless you think you understand why it blew in the first place!

Measuring Voltage Use one-Hand Method Voltage is measured across a Component

Sketch in the Volt Meter to measure V R1

Measuring Current Current Flows Through a device 1) Amp-Clamp 2) In-Line Measurement – “Hard-Wired” Meter – Break Then Make

Sketch in the Amp-Meter to measure I R1

Snow Policy Check my office phone OGM Check BCTC Website me if you will not be able to make it