Q:How to choose the type of street lamp cable specifications, anxious

laying the dark tube should be used when the steel pipe or flame retardant PVC pipe

Q:The difference between the power cable YJY22 and YJY23 is in the outermost layer, one for the PE sheathed, one for the PVC sheathed. What is the applicable environment, and why? Question added: I have to ask is the difference between 22 and . not 22 and 32! Thank you for the answer. Learn more together

The bearing capacity of the square millimeter in the wire decreases with the increase of the wire diameter, for example, 1 mm square meter

Q:I have a Technics SL-D20 Turntable recently purchased from a garage sale that lacks a power cable. The turntable has a 2 prong adapter, but it is not one that has a square and semi-circular portion, but rather seems to accept an elliptical two pronged cable. It is listed on the back as Power Source AC120V 50 or 60hZ 6wThank you

Man that could be tough. It sounds like a belt drive turntable, I'm sure of the name of the part, but it's basically there to move the belt; it isn't metal so it isolates the belt, thus reducing vibration and transmission of motor noise. That's what I think it is anyway. I'll bet if you go on some audiophile web sites, you can find a parts listing for that model, and get a name and part number. Technics were very popular, I've got a belt drive one myself that I haven't hooked up in 10 years.

Q:When doing competition, is there a rule where your battery in the back can't be bigger than the one in the front? Are Monster Cables as good as they perceive to be???? I.E. their 400 series cables that are wound in different arrays to optimize each frequency out put? Can a Power cable actually provide more efficiency if constructed right, once again, their 400 series?Subwoofers being 1000 RMS but only getting 500, will running them at their RMS make a significant difference?

Power cables are very very important when running a comp set up. You want as much current running through as you can possible get. Same goes for your ground, you want it to be just as good. Monster Cables are a very good brand of cable. RMS is basically the wattage a speaker can take continuously. If you run twice as many watts through your amp it will be significantly louder and boost your SPL.

Q:I wanted to buy this card: What power cables will it need? Thanks in advance

You don't need any power cables. The board gets power from the mother board. You need a PCI-Express slot on your mother board. If you're asking about video cables to the monitor, it says in the listing... Interfaces 2 x DVI-I - 29 pin combined DVI , 1 x HDMI - 19 pin HDMI Type A , 2 x DisplayPort - Apple mini-DisplayPort You only need one of these unless you are running more than 1 monitor. I would look on your monitor and see what connections you have. (2) DVI-1 is common is older stuff, (1) HDMI is the newest technology and common for HDTV, (2) Apple ports for Apple enabled monitors.

Q:my power cord on my laptop is acting up to the point where I have to literally hold it in place to have it charge the battery and now the computer isn't coming on- the battery light is showing up when you push the power button but i don't know if it is charging-if there is anything you can tell me to fix this, that would be great!!

My power cable was having a problem too. What I did was just go out and get another cable because it seems that it is either your battery, or your power cable. So just go out get it replaced and Wala! It should work again...

Q:I'm thinking of the power cables that connect houses to the national grid in the UK. Not only do they appear to be the green colour of copper in full sunlight, but this colour isn't evenly spread. In places there is still black. What causes this, as it's presumably not exposed copper or the colour would always be apparent?

This could simply be moss / lichen or fungus growing. the north side of the cable will have more moss on it than the south side. As the sun is over the equator and England is in the Northern Hemisphere so the sun lights the south side of the cable, and the moss grows on the darker side. This is a classic way of telling directions in a forest or paddock. Garret

Q:i have a modular power supply i lost my cables moving out of my old house. so can any one tell me where i can get new ones to my power supply:

I've never personally ordered any item specific parts but you should try NCIX . com

Q:(for example : 1sqmm, 4sqmm, 35 sqmm) i need a formula to calculate current by knowing the area of the cable?

Hi Sherlock, You need a copy of BS 7671 The IEE Regulations. By the cable sizes mentioned you must be in the UK. The current carrying capacity of a conductor is a function of its Cross Sectional Area, Length, Method of installation, Is it grouped with other circuits, Ambient Temperature and fuse or CB type. (these are called multipliers) For larger cables the power factor of the load must also be considered. The basic formula assuming no multipliers are used is Volt Drop per ampere per metre X length of run X Design current / 1000 Volt drop is from the tables in BS 7671 Length of run is the cable length design current is the current the cable will have to carry in normal use 1000 is because Vont Drop per Amper per Metre is given in millivolts

Q:Sometimes I have to jiggle the chord or plug it in the right position to get the laptop to be charged. At first, I thought it was the power cable, but after buying a new one, I still have the same problem. Any suggestions as to what causes this and how to fix it?

The power jack internal to the laptop, is probably faulty, not the cable. If your laptop is under warranty I would look at filing a claim to get it fixed.