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That depends on your meaning. Are you talking about turning off the breaker when you screw in a new lightbulb or fluorescent tube? That isn't necessary, but it is a good idea to turn off the switch.
If you're talking about installing a new light fixture, yes, you should always turn off the breaker or remove the fuse. Many electricians, if they are sure of what they're doing, will simply make certain that the light switch is turned off.
What else can I help you with?
Power is not off . need to change when you change the light switch?
Yes, you need to turn off the power when you change (replace) a light switch, since at least one of the terminals on the switch will always have power if the circuit is energized at the panel.
Is it easy enough to change an electric light fixture that I can do it without hiring a contractor?
It can be dangerous my dad does it but you need to turn the power off.
What do you need to make a simple series circuit to light a bulb?
To make a simple series circuit to light a bulb, the simplest components are a power source (such as a battery); a switch (to turn the power on or off); the bulb (obviously !); and some wires to connect everything together.
How do you install a new ventilation fan on a second light switch using the power from the existing light switch?
you probably can't, you need a neutral and a live wire to make a fan work. switches normally only have live wires.
How do you calculate kvar of capacitor bank if you know only the kw?
Your question is rather vague. Are you asking how do you determine the reactive power of a capacitor bank necessary to improve the power factor of a load (in which case, is it a single-phase or a three-phase load), or are you asking how to convert a capacitor bank's capacitance into reactive power?If the former, then you need to know the reactive power of the load before power factor-improvement, and the resulting reactive power after power-factor improvement, and the difference between these two will tell you how much reactive power you need to add in the form of capacitors.
Who can install a vanity light?
Most people can install an bathroom vanity light if the electrical box and light switch are already installed. You just need to make sure you turn of the power while you are installing the light and be certain that you are attaching the wires correctly. If you are not comfortable installing the light fixture on your own, or if you need to install the electrical box for mounting and the light switch, then you will need to contact a licensed electrician to install it for you.
Do you need to fill the fuel pump before installing?
No.
Do you need to grease the starter before installing?
No, it should be internally lubricated so there is no need to lubricate the starter.
Do you need a waterproof membrane before installing tile in a bathroom?
Don't HAVE to, but it is a good idea.
Do you need sims2 before installing other sims?
if you mean expansion packs yes
Do you need sims 2 before installing sims 3?
umm..i don't think you will need to install sims 2 before installign sims 3.
How can I replace a bathroom exhaust fan with a light?
To replace a bathroom exhaust fan with a light, you will need to remove the existing fan and install a new light fixture in its place. Make sure to turn off the power to the bathroom before starting the project. Follow the manufacturer's instructions for installing the new light fixture, and ensure that it is properly wired and secured in place. If you are not comfortable with electrical work, it is recommended to hire a professional electrician to assist with the installation.
Do you need to unhook the battery before installing the new radio in your lanos?
Yes, most definitely.
What is the wiring light switch diagram for installing a new light switch in a room?
To install a new light switch in a room, you will need to follow a wiring diagram. The diagram typically shows the connections for the live wire, neutral wire, and ground wire. It is important to turn off the power before starting the installation process to avoid any accidents. Make sure to follow the diagram carefully and consult a professional if needed.
What are the benefits of installing a skylight in an attic?
Installing a skylight in an attic can bring in natural light, reduce the need for artificial lighting, improve ventilation, and potentially increase the overall value of the home.
Where can you find instructions on installing a third brake light for a 1999 Wrangler?
you dont need an instruction just top up the wire of your first and 2nd light,
Must you uninstall Quicktime before installing Quicktime 7.6?
There is no need to uninstall an older version of QuickTime before updating to QT 7.6.
