This is our best seller for a reason. Relaxed, tailored and ultra-comfortable, you’ll love the way you look in this durable, reliable classic 100% pre-shrunk cotton (heather gray color is 90% cotton/10% polyester, light heather gray is 98% cotton/2% polyester, heather black is 50% cotton/50% polyester) | Fabric Weight: 5.0 oz (mid-weight) Tip: Buying 2 products or more at the same time will save you quite a lot on shipping fees. You can gift it for mom dad papa mommy daddy mama boyfriend girlfriend grandpa grandma grandfather grandmother husband wife family teacher Its also casual enough to wear for working out shopping running jogging hiking biking or hanging out with friends Unique design personalized design for Valentines day St Patricks day Mothers day Fathers day Birthday More info 53 oz ? pre-shrunk cotton Double-needle stitched neckline bottom hem and sleeves Quarter turned Seven-eighths inch seamless collar Shoulder-to-shoulder taping
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Even the lower voltage of 13,000 is extremely hard to insulate and magnetically shield in order to bury it below the ground. The cost of doing that is usually prohibitive, especially given that these lines are tapped or connected to several times in each city block. These tap connections are even harder to insulate and shield. The maintenance and unavoidable outages are unacceptable to utilities. Another issue is the need to switch off, or isolate, sections of the power circuit for maintenance, repair, or additional tapping connections. The devices to do this switching underground are expensive, complicated, and prone to failure. Colten asks: “Why are most powerlines strung through the air and not buried in pipes like so many of our other necessities Wouldn’t we have less power outages because falling trees wouldn’t take out the powerlines”
Like many questions of this type, the answer is one of economics. It all centers on the fact that ambient air is an excellent insulator, and is available for free. In the early days of telegraph, telephone and electric power distribution, overhead lines were a technological imperative. Nothing else matched it for effectiveness, durability, safety or cost. Today, we have newer materials and methods which permit us the option to go underground, if that is appropriate. The decision on which way to go comes down to a costbenefit analysis. When you compare other utilities to electricity, there are some significant differences involved. Fluids, such as gas, water and sewage are contained in pipes that are the same size whether they above ground or below. They can be conveniently buried directly, where they are kept out of sight, in a mostly uniform temperature environment and largely protected from external damage. The same is not true for electric lines. They require morebetter insulation which translates to more material, more cost when installed underground.
That is an expenses the power company is not seeking to spend without a high demand for it resulting in an increase in customers and profit. Power lines like being cold. Our transmission lines have higher capacity in winter than summer due to thermal issues. High amperage heats the lines. Hot metal expands. Longer lines sag. Contacting trees is bad because fires happen. I’ve run water pipes overhead a few times, but yet they were temporary and it avoiding trenching them in or getting run over and stressed by heavy truck traffic. Most of the power lines that you see in and near cities where trees are an issue, are probably 69,000 volts and down to 13,000 volts.
Product detail for this product:
Fashion field involves the best minds to carefully craft the design. The t-shirt industry is a very competitive field and involves many risks. The cost per t-shirt varies proportionally to the total quantity of t-shirts. We are manufacturing exceptional-quality t-shirts at a very competitive price. We use only the best DTG printers available to produce the finest-quality images possible that won’t wash out of the shirts. Custom orders are always welcome. We can customize all of our designs to your needs! Please feel free to contact us if you have any questions. We accept all major credit cards (Visa, Mastercard, American Express, Discover), PayPal, or prepayment by Check, Money Order, or Bank Wire. For schools, universities, and government organizations, we accept purchase orders and prepayment by check
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