Overloaded electrical systems invite fire. Watch for these overload signals: dimming lights when an appliance goes on, a shrinking TV picture, slow heating appliances, or fuses blowing frequently. Call a qualified electrician to get expert help. Remember, use an extinguisher on small fires only.Learn how to use your fire extinguisher before there is an emergency.Purchase an ABC type extinguisher for extinguishing all types of fires.Fire extinguishers should be mounted in the kitchen, garage, and workshop.They remain your best bet if you're on the spot when a fire begins. Class C fires involve energized electrical equipment, such as appliances, switches, panel boxes, power tools, hot plates and stirrers.Class B fires involve flammable or combustible liquids such as gasoline, kerosene, and common organic solvents.Class A fires are ordinary materials like burning paper, lumber, cardboard, plastics, etc.If there is a large fire, get out immediately and call 911 from another location. Class D fires involve combustible metals, such as magnesium, titanium, potassium and sodium as well as pyrophoric organometallic reagents such as alkyllithiums, Grignards and diethylzinc.Water is a particularly dangerous extinguishing medium for class C fires because of the risk of electrical shock. These materials burn at high temperatures and will react violently with water, air, and/or other chemicals. Some fires may be a combination of these! Your fire extinguishers should have ABC ratings on them. These ratings will often have numbers on them that look something like "3-A:40-B:C". Higher numbers mean more firefighting power. Water Extinguishers are suitable for class A fires, but not for class B, C, and D such as burning liquids, electrical fires or reactive metal fires. In these cases, the flames will be spread or the hazard made greater.ĭry Chemical Extinguishers are useful for class ABC fires and are your best all around choice. Type ABC fire extinguishers contain ammonium phosphate.ĬO2 (carbon dioxide) extinguishers are for class B and C fires.Type BC fire extinguishers contain sodium or potassium bicarbonate.They also make a terrible mess, but if the choice is a fire or a mess, take the mess! There are two kinds of dry chemical extinguishers: They have an advantage over CO2 extinguishers in that they leave a blanket of nonflammable material on the extinguished material which reduces the likelihood of re-ignition. They don't work very well on class A fires because the material usually reignites. CO2 extinguishers are not approved for class D fires! CO2 extinguishers have an advantage over dry chemical in that they leave behind no harmful residue - a good choice for an electrical fire on a computer or other delicate instrument. 3.Metal/Sand Extinguishers are for flammable metals (class D fires) and work by simply smothering the fire.This can be disabled via the menu settings Excellent for hearing impaired or a private practice session. Start signal LED, bright white 850mcd LED can be used for an alternative start signal.Increased sensitivity capability that can pick up the snap of a finger. Up to 5 Par time settings for multiple beeper alerts at specified time intervals.Once you have entered your total stage points, it is carried over to new strings until you change it Built-in Hit Factor (points per second) scoring on-screen, after shooting a stage you can navigate to the scoring screen and enter your “points down” to get your hit factor.Stores all shot string data including hit factor scoring info Built-in 50 string memory and on-screen review, numbered in chronological order with date/time stamp.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |