2. Lights in haymows and other dusty locations not protected by dustproof globes
3. Outside sockets not waterproof
4. Heat lamps not properly supported by non-current carrying wire, chains, or brackets (Figure 4)
5. Light bulbs not frosted, shaded, or placed so that light is diffused to prevent glare
Auxiliary Wiring
1. Outlets overloaded--in other words, "octopus wiring"
2. Extension cords placed under rugs
3. Extension cords run through doorways (Figure 5)
4. Extension cords or lamp cords should use underwriters' knot (Figure 6)
5. Plug connections fuzzy (Figure 7)
6. Extension cords run over heaters or radiators
7. Extension cords, or appliance or lamp cords, worn or frayed
8. Heating appliances without regular asbestos covered wire
9. Open sockets or outlets where a baby or small child might stick a finger or metal toy
10. Broken plugs (Figure 8)----
11. Loose prongs on appliance or lamps plugs----
How Many Hazards Did You Find?
Make a chart listing the hazards, their locations and what you did about them. Make your own chart and list what you find.
Demonstrations You Can Give
Show and tell others how to have a Hazard Hunt.
For Further Information
Check with your leader, then ask your power supplier or a local electrician to tell you about safe electrical wiring, connections and fixtures.
+-------------------------+-------------+------------------------+ |Hazard | Location |What I Did | +-------------------------+-------------+------------------------+ |Loose prong on lamp plug|Living Room |Replaced with new plug | +-------------------------+-------------+------------------------+ |Cracked insultor on |Back of house|Notified power | |service wire in house | |supplier | +-------------------------+-------------+------------------------+ |Conduit not securely |Basement by |Notified parents | |clamped to box |fuse box | | +-------------------------+-------------+------------------------+ |Extension cord, old and |Basement, by |Replaced with new | |worn |washing |rubber-covered one and | | |machine |protected it from | | | |water | +-------------------------+-------------+------------------------+
LESSON NO. B-10 Credit Points 3
HOW ELECTRIC BELLS WORK--FOR YOU
When was the last time you wanted to get a simple message like "You're wanted on the telephone," "There's someone here to see you," or "There's a car in the driveway," to someone around your place? Did you have to walk or run some distance and perhaps shout, too, to be heard by the other person? Perhaps you had to stop some other work, or interrupt your favorite kind of fun, to do this bit of messenger work.
If the nature of the message is like one of those mentioned, and the number of people in hearing is not too great, then perhaps you can use bells or buzzers or both to do some of your messenger work for you. Even though a bell or a buzzer can't talk, it can convey a message.
What to Do
Electricity for the 4-H Scientist · The Wunder Library — complete classics, free to read, with narration.