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2014

How to select right wire nut ... wire nut basics:

wire nut assortment

Wire nut assortments

Do not reuse old wire nuts Buy
Wire nut assortment at Amazon
Wire nut assortment at Amazon
Weatherproof wire nut

Weatherproof wire nut

Wire nut cavity is full of silicone
Built-in cover keeps silicone in place
Protect from water, dust etc
Buy
Weatherproof size 14 to 6 Amazon
Weatherproof size 22 to 8 Amazon
Wire nut wrench

Wire nut wrench

Tighten wire nut
Buy

Wire nut wrenches at Amazon
Push on wire connectors

Push-on wire connectors in place of wire nuts

Buy:
Push on wire connectors Amazon
Red 3P connector for 10-14 gauge wire
Lever nuts for stranded wire at Amazon
add solder to stranded wire

Turn stranded wire into solid wire

Add solder to 1" length of tightly twisted stranded wire to make into solid wire
Heat wire. Touch solder to wire. Let cool. File away over-solder.
Buy:
soldering guns
Resource

Timer caught fire

Non-contact voltage tester

Test for power without touching wire nuts
NEVER assume power is OFF
Buy:

Non-contact voltage tester Amazon
Electric testers at Amazon


Multimeter

Test for breaks in wire/ Test for voltage
Most appliance require 80% rated voltage to function correctly
Buy:
Multimeters at Amazon
Electric testers at Amazon

linesman pliers
Buy:
Wire strippers at Amazon
Linesman pliers
Utility knife at Amazon
End cutting nippers at Amazon

Terminals

Buy:
Terminal kit
Blue for 16-14 wire
Yellow for 12-10 wire
Read about terminals

Steel spring inside each wire nut

Steel spring cuts into soft copper wire.

Tighter the wire nut, the stronger steel spring holds wires together.


Buy:
Wire nuts at Amazon

Does wire nut cover past the copper wire?

Is nut tight enough that it will never fall off?


Answer 'yes' to both questions, you have right wire nut.

Twist wire nut very tight

        

Copper part of wire is completely covered

Applies to wires that are twisted together

Applies to wires that are placed sided-by-side

Applies to stranded and solid wires

connect stranded wire and solid wire

How to connect stranded wire and solid wire

If stranded wire is thinner than solid:
Strip back stranded wire so there is more copper visible than solid wire.
Wrap stranded wire around solid copper.
Leave solid wire straight.
When connecting two solids and one stranded: twist solids together first, then wrap stranded wire around solids.
Apply wire nut very tight.
Pull stranded wire to make sure it is tight.
If stranded wire is same diameter as solid:
Cut off both same length
Don't twist together, cover with wire nut.
Twisted wire
Do not reuse wire nuts
Discard used wire nuts
               
Wing Nut                     Wire nut

This site calls both types: 'wire nuts'

Wing nut / wire nut / do the same job

Wire nuts do not need to be taped in household wiring.
All electrical connections has resistance, and Tape can cause heat build-up that might melt wire nut
Different wire nuts

Choose right size:

Ceiling fans and electric light fixtures from store usually arrive with orange wire nut.
The orange wire nut may be too small for connecting to solid wire.
Use Yellow wire nut instead

Never use wire nuts for aluminum wire

Always use copper wire. Wire nuts are not approved for aluminum wire applications.
Only specific high compression fittings are used for aluminum wire

Do not use wire nuts that were used before

Apply new wire nut each time for high amperage applications

Never expose wire nut connections to temperatures higher than 220F

Friction tape
Friction tape

Friction tape: 

Friction tape is best. Plastic tape dries out and comes loose over time.
Do not use wire nut to repair extension cord, appliance cord, or lamp cord. Cut wires back, twist copper wire together, next solder wires, then cover repair with tape.

Friction tape applied over wire nuts:

Commercial electricans know that wire nuts always come loose in high amperage applications, and so they apply friction tape over each wire nut. However, friction tape can block heat transfer out of wire nut, causing wire nuts to melt in some circumstances.

Household electric usage will not experience same high amperage heat found in commercial applications.
Using wire nut or wing nut without friction tape is fine for household applications.
wire nut safety

Never assume electricity is OFF

Turn power OFF
Always stand on dry boards.
Do not stand on soil or metal ladder
Electricians use fiberglass ladder
Do not touch or lean into anything made of metal


Never assume power is OFF

Use non-contact voltage tester on timer, on wire, on outlet to see if power is present.
Press button on tester, if single beep then no power is present. If continuous beep then power is present.
Never stand on bare ground, always stand on dry boards, do not hold or touch anything metal when working on timer or water heater that has power, tape tester leads to wood sticks, never touch wet water heater, or flooded water heater, or timer that had a short or fire without turning power OFF.


Buy:
Multimeters at Amazon
Buy non-contact voltage tester at Amazon
Electric testers at Amazon

Shop Amazon - Industrial and scientific
Shop Amazon - Industrial Electric Products


how to twist electric wiresLinesman pliers
Use to twist wire
Use to cut wire
linesman pliers
Buy:
Linesman pliers

Resources:
How to twist wire
twist two electric wires

Fire inside timer caused by stranded wire
Keep enclosure door closed at all times
add solder to stranded wire

Fire caused by stranded wire

Do not use stranded wire under screw plate

Add solder to 1" length of tightly twisted stranded wire to make into solid wire
Heat wire. Touch solder to wire. Let cool. File away over-solder.
Buy:
soldering guns
Resource

Timer caught fire

Match breaker to voltage that shows on appliance label

3-phase breakers are used for commercial service panels
14 ga wire ++  rated for 120 Volts x 15 Amp = 1800 Watts x 80% = 1440 Watts

12 ga wire ++ rated for 120 Volts x 20 Amps = 2400 Watts x 80% = 1920 Watts

10 ga wire ++ rated for 240 Volts x 30 Amps = 7200 Watts x 80% = 5760 Watts

Select right wire and breaker
Wire size chart with distances
Electrical formulas

main breaker box
Larger image
See inside main breaker box

Basic house wiring
Electricity leaves power plant 3-phase electric: power plant to end user

How to wire 3-phase timer

Troubleshoot Household electricity

Figure volts amps watts for electric water heater
How to wire tankless electric
How to change water heater temperature using timer
How to change water heater from 240Volt to 120Volt
How to wire thermostats
How to wire water heater for off peak operation

How to twist wire
How to wire Cooper 277
How to wire combo switch-outlet
How to replace 3-speed fan switch

How to wire 3-way switches
How to wire 4-way switches
How to wire TM811 and TM8111 switches
How to wire wall timers
How to wire box timers
How to wire Dayton off-delay timer
How to wire pin timers

How to wire and troubleshoot photo eyes
How to wire switches

Troubleshoot Malibu outdoor lights
Terminals
Select and install wire nuts
Select wire size

Replace breaker
Install subpanel

Electrical formulas
Electricians forum
How to wire GFCI
How to wire GFCI combo

Basic water heater circuit
How to wire water heater for 120Volt
Install old work box

How to drop wire from attic
Romex connector

How to wire 240volt outlets
How to install 3-phase timer
How to wire 3-phase outlets
How to wire 3-phase surge protector
What is 3-phase

How to wire whole house surge protector
How to wire under-counter water heater

See inside main breaker box
Fuseholder
Contactors
How to solder wires
Whole house surge protector
3-phase surge protection
Circuit breakers

Difference between 120 volt and 240 Volt
Difference between 50Hz and 60Hz
How to install electric meter on water heater
How to wire water heater thermostat
How to wire water heater with switches and timers

6x6x4 Enclosures
Intermatic timer enclosures



How to install gas water heater

How to wire 240Volt outlets

Terminals

Shallow ground water temperature

Troubleshoot electric water heater
Troubleshoot gas water heater

How to wire Cooper 277

Install water heater timer
Cutler Hammer C25BUB230A
Contactors

How to wire off-peak water heater

Compare all water heater timers
Do it yourself
Do it yourself water heater

240 V Intermatic water heater timer

Anode rods

Troubleshoot Rheem tankless
Troubleshoot Bosch tankless
Compare box timers
Compare box timers
 
Intermatic parts
Intermatic trippers and parts
 Dayton Westinghouse timers
Westinghouse timers
Timex timers
Brinks timers
Woods timers
Power pack
Gardena timers
Gardena T1030
Tork timers and manuals
Tork TU universal timer
Paragon timers and manuals
Tork TU universal timer
Westek box timers

How to set analog  timers
Sylvania timers

GE box timers
GE 15207 timer
3-phase timer
3-phase timer
Intermatic EH10 timer
EH10 timer

How to read gas meter

Chart for setting timer
Intermatic timers
Intermatic GM series
Intermatic EH40 and WH40
  
Intermatic T-101 T103 T104
Intermatic T1906 and T1905
  
Troubleshoot Intermatic
Intermatic parts

Intermatic Sprinkler timers
Pool timers and manuals
Intermatic T104P201

Replace circuit breaker

Leaking water heater

Anode rods

Cost to run water heater
Recirculation system
Hot water circulation system

Clean sediment from tank

Low hot water pressure

Compare all water heater timers

Troubleshoot Rheem Tankless water heater
Troubleshoot Bosch Tankless water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
How to wire Tork DTU40
Tork-DTU40
How to wire Intermatic GM40
Intermatic GM series

Gas and electric water heaters Support the economy:
Buy water heaters  from my associate links:

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Resources:
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Troubleshoot gas water heater
Troubleshoot electric water heater
Gas and electric water heaters Industrial electric at Amazon

Industrial supplies at Amazon

Industrial and scientific Amazon
Intermatic control centers Intermatic control centers:
+ manuals and parts


Including Z-wave
box timers Compare box timers

Control with Z-wave
programmable timer Compare programmable timers

Control water heater with programmable wall timer
Countdown timers Compare countdown timers

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