An electrical device cover assembly with a base unit having an electrical box, where the electrical box has an electrical device opening on a front side of the electrical box. Particular implementations may include a cover plate slidably coupled into the electrical device opening of the electrical box over the electrical device. A sleeve may be slidably coupled into the electrical device opening and be slidable with respect to the cover plate. The sleeve may also have a sleeve mounting feature and at least one sleeve hinge member. A lid having at least one hinge member may be included with the lid coupled to the at least one sleeve hinge member by the at least one hinge member.
Electrical device cover
on Thursday, 25 June 2009
Shanghai Electrical Light Device Co., Ltd. is the manufacturer of xenon short arc lamp and other specialty lamps mainly for stage, disco, etc. We offer high quality products at low price. Our products are made of quality materials. Many cinemas in China choose our xenon lamp for the light source of projection. We also distribute our products worldwide.
The Circuit Breaker is found in an electrical service panel and is an electrical device used to protect the electrical wiring from an overloaded (overcurrent) condition when exposed to more electrical current than it is designed to handle.
Similar in function to an electrical fuse which will blow when overloaded, the circuit breaker will turn off or "trip" when in an overcurrent condition. However, unlike the fuse which is rendered useless when it blows, the circuit breaker is not damaged when it trips, and can be reset.
For a more detailed description of circuit breakers andhow they work see The Circuit Breaker.
Similar in function to an electrical fuse which will blow when overloaded, the circuit breaker will turn off or "trip" when in an overcurrent condition. However, unlike the fuse which is rendered useless when it blows, the circuit breaker is not damaged when it trips, and can be reset.
For a more detailed description of circuit breakers andhow they work see The Circuit Breaker.
Rui Li
<ruili@worldnet.att.net>
Joy Yokley - Coverted document from Linuxdoc to DocBook v4.1 (SGML).
2003-02-08
Revision History
Revision 0.008
2003-02-08
Revised by: Goldencat
Revision 0.007
2002-02-12
Revised by: RL
Revision 0.006
2001-06-27
Revised by: JEY
Revision 0.005
2001-06-13
Revised by: RL
Revision 0.004
2001-06-12
Revised by: JEY
This HOWTO will tell you how to use Linux to control your home electrical devices. You will only need to make a very simple circuit to control almost any kind of electrical device using Linux!
Table of Contents
1. Introduction
2. System Requirement
3. Electronic Circuit
4. Examples of Relays
5. Special Thanks
Get any computer that is running Linux and has a working parallel port. :) I'm using a 386DX with 4MB RAM 40MB HD. You will need gcc to compile the program. If you want to use telnet or SSH, you will also need telnetd or sshd. You can write your own program by using ioperm and outb. If you would like to use my program, you will need g++.
Click the following link to download my program. You will need g++ to compile it. edc.sourceforge.net/paralle.tar.gz.
The data line of the parallel port can provide between 0 and 5 volts. Therefore, we can use this line to control a relay and let that relay control an electrical device.
Use pins 2 through 9 to get +5V
Use pins 18 through 25 as the Ground
Int
Many people asked me, "Is it possible to control some electrical stuff [e.g. lights, radio, tv, etc.] by using a home computer?" The answer is YES. The process is very easy, and anyone can do it.
After I read the Coffee Machine Mini-HOWTO, I got an idea of how to control my home electrical appliances. I made some modifications on the circuit discussed in that Coffee Machine Mini-HOWTO, and wrote a simple program. The circuit can control many small electrical devices.^_^ You can use crontab to set your lights to come on automatically or to turn on your airconditioner. I use it to control my VCR and VCD ( I do still need some modification on VCR/VCD). By writing a simple program, you can control everything over the web. You can use telnet with SSH and your telephone dial in to control all the appliances you have on the circuit.
This circuit is VERY SIMPLE. Even if you don't know anything about circuits, you can set up this circuit.
roduction
A cable that provides an electrical connection for telephone or television or power stations
Derived forms: electrical cables
Type of: cable, line, transmission line
Encyclopedia: Electrical cable
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