Course ILT Safety Unit objectives Identify safety issues and hazards in the computer environment Identify ways to avoid injury and strain when working with computers Identify proper methods for disposing of computer equipment

Course ILT Topic A Topic A: Safety and hazards Topic B: Safe work practices Topic C: Disposing computer equipment

Course ILT Floor surfaces Keep floors level and dry Secure carpets to the floor Don’t cross walkways with cables and power cords Use static protection –Antistatic floor mats –Static mats under the user's keyboard and/or computer

Course ILT Static mat

Course ILT Fire safety Keep papers orderly Keep combustibles away from appliances Use working smoke detectors in all areas Have appropriate fire extinguishers on hand

Course ILT Fire extinguisher types Class A: Ordinary compustibles Class B: Flammable liquids Class C: Electrical equipment Class D: Flammable metals

Course ILT Fire extinguisher substances Dry chemical Halon Water CO 2

Course ILT Fire extinguisher label

Course ILT Electrical safety Avoid overloading electrical circuits Label breakers Use surge protectors and Universal Power Supplies Avoid stringing together power strips Avoid running electrical cords or network cables across walkways Encase cables across walkways in a cord protector Provide good ventilation for computer equipment Secure cords, lines, cables out of the way

Course ILT Overloaded circuits

Course ILT Air quality Use fans to keep the air clear Avoid smoking around computers Place working carbon monoxide detectors throughout the building

Course ILT A carbon monoxide detector

Course ILT Computer hazards Physical hazards Laser and copier toner Electromagnetic hazards

Course ILT Incident reporting Establish policies Necessary for –OSHA –Workers compensation claims –Insurance

Course ILT Activity A-1 Identifying typical office and computer- related hazards

Course ILT High-voltage interference Outside interference Inside interference

Course ILT Electrostatic Discharge (ESD) Occurs whenever static charge on two objects is dissimilar If the two objects touch, electricity from higher voltage charge flows to lower voltage charge until charges are equalized Can attain very high voltages –If you touch metal object and feel electric discharge, voltage difference was 3,000 volts or more –If spark visible when discharge occurred, voltage difference was at least 8,000 volts

Course ILT Electromagnetic induction From fluorescent lights Electromagnetic field can induce a similar current in other nearby objects –Network cables –Electronic equipment Induction currents in network wiring can destroy data and can damage equipment

Course ILT Minimizing high-voltage interference Maintenance Install ground wires Use anti static devices

Course ILT Shielding and filtering Shielding applies primarily to a network’s cables and is actually a refined form of grounding Filters are electronic devices designed to permit the normal function of a device, but they block or suppress any other signal coming from it

Course ILT Activity A-2 Finding sources of static electricity and interference

Course ILT MSDS Physical data Toxicity Health effects First aid Reactivity Storage Disposal Protective equipment Spill/leakage procedures

Course ILT MSDS hazard ratings RatingDescription NoneNo potential hazard in this category 0The least hazard 1A slight hazard 2A moderate hazard 3Highly hazardous 4Extremely hazardous

Course ILT Personal protection by rating RatingDescription AWear goggles when using this product BWear goggles and gloves when using this product CWear goggles, gloves, and other protective gear when using this product

Course ILT Activity A-3 Reading a material safety data sheet

Course ILT Topic B Topic A: Safety and hazards Topic B: Safe work practices Topic C: Disposing of computer equipment

Course ILT Ergonomic workstations Check position of: Chair Monitor Keyboard Mouse Document holders Office equipment –Phones –Other equipment

Course ILT Laptop safety Weight Ergonomic issues Heat

Course ILT Activity B-1 Avoiding injury and strain when working with PCs

Course ILT Topic C Topic A: Safety and hazards Topic B: Safe work practices Topic C: Disposing of computer equipment

Course ILT Computer equipment disposal Disposal of electronics –Hazardous materials Disposing of used toner and ink cartridges Disposal of computer equipment –Reusing equipment –Methods of disposal

Course ILT Activity C-1 Selecting the proper methods for computer equipment disposal

Course ILT Unit summary Identified safety issues and hazards in the computer environment Identified ways to avoid injury and strain when working with computers Identified proper methods for disposing of computer equipment