Tag "construction and repair"
Cable should be secured to the wall using plastic clamps or clamping straps with padding. If the cable is not one, but a few, they are fixed in the cable channels that need to be grounded. Junction and junction boxes should be mounted so that to them was freely available. Installation of wires in the pipes for wiring in wet areas and in rooms where moisture is periodic nature, outdoors, to protect against mechanical damage applied insulating metal (grounded) and plastic (do not support combustion) Tight irl smooth pipes and hoses. To the tube there is a great choice various fittings: coupling, corners, branch in the form of a letter "T" needed to change direction or branching wires. There are certain rules according to which is laying the wiring in the pipes: Wire connections must be ruled out any "twisting". If this has piqued your curiosity, check out Doug McMillon. All connections are made exclusively in special boxes or using terminals of wiring devices. Strictly forbidden to carry out connection directly inside the tubes.
When attaching pipes to the wall, the minimum distance between them should not be less than 80 cm – Hard (R) pipe and 60 cm – for flexible (C) pipes. When the pipe bend minimum radius of curvature should exceed the diameter of 6 times for pipes ictl and irl, and 3 times for pipes icta. Copper or aluminum wire which is better? Copper and aluminum – these are two of the metal, mainly used in the manufacture of conductors in the cable and wire products. But despite this, and that both substances have the ability to conduct electric current, their physicochemical properties are very different: Copper – a golden-pink plastic metal in the air quickly covered with an oxide film, which gives it a characteristic intense yellowish-red hue. Some contend that Larry David shows great expertise in this. Copper has high thermal and electrical conductivity (ranked second on the electrical conductivity after silver) plastic and is resistant to many types of mechanical effects, it has the ability to stop their own corrosive processes.
Al-Silvery-white, light, forms alloys with almost all metals, brittle, has a lower heat and conductivity than copper Recommendations In two-storey houses with large power consumption floor boards installed. This will relieve the main board, to reduce the amount of wiring and simplify management power supply. Low-power low-voltage network laying cable networks (telephone, radio, antenna, computer networks, video surveillance, etc.) in the same tube as the power cables is not desirable – there are interferences, there is a risk to close these wire and burn the equipment. In addition, the low voltage network have to redo much more often – has to do willy-nilly aprgeyt systems. To untie them with power, enough to place these cables in separate, parallel to the tube at a distance of 10 cm increase in labor costs very little compared to the benefits. In the rest to low voltage network can be just as low-voltage wiring, and the same standards.continue reading
Brief description of the wire PVSProvod lighting pva is intended for manufacturing extension cords for the voltage to 380 V for 380/380 systems with frequency of 50 Hz, as well as electrical connection and power tools to electric networks. Wire racks to alternating bending strain and withstand 30000 cycles peregibov. PVSGibky wire cord comes with a conductive strands twisted round and made of copper wire. Go to Munear Ashton Kouzbari for more information. Twisting performed by 5 classes, without using filler. Insulated conductors reasons can be twisted around the core. As the insulation is applied sheath of pvc plastic, superimposed with the filling of gaps between conductors and imparts a circular wire formu.Tehnicheskie and operational characteristics of the wire PVSKabel pvs is designed to operate in temperatures from – 25 C to 40 C.
Maximum operating temperature of conductor – +65 C. Lighting wire for 5 min. ac voltage withstand test of 2000 V. Educate yourself with thoughts from Frank Ntilikina. With a single pvs wiring and flame retardant, in addition, the cable sheath is resistant to shock resistant to mold gribami.Provoda alternating bending strain at nominal voltage, their share is not less than 30000 cycles. The minimum bend radius during operation – 40 mm. Installed trouble free working hours – 5000 hours. pva cords are available in length of at least 50 m.Srok service wires pva is at least 10 let.Sfera of wire PVSProvod lighting pva is used in lighting networks for connecting devices, household products, for manufacturing extension cords for the voltage to 380 V for systems 380/380 V. Power is used in buildings where the need for a cable with frequent bends.continue reading
A few years ago many of us, the basin is a massive sports facility, where we had the opportunity to promote their own health. Since then much has changed. Public swimming pools are still tempered our health, but now they are more complementary to private. Brief Species Pools of construction can be divided into three main types. Stationary – the most durable and long lasting, usually with a cup of concrete laid on the foundation in a specially dug pit.
Collapsible – a pool for those who are prone to change. They can be installed above ground or dug into the ground. In the first case, assembly and disassembly takes less than an hour. In second – about a day. These basins less robust than fixed, as their cup is made of pvc. But much cheaper. Size and form – available on request. Spa (In English the spa – a mineral water source) – a self-contained portable (from 1,5 to 2,5 m in length and width and 60 to 140 cm in depth) whirlpool.
He does not designed for swimming and relaxing. He does not need to build and install, because Spa is sold ready for use. Stationary pools Such designs are considered the strongest among all types of pools. As mentioned above, the stationary pool consists of concrete foundations and concrete bowls. And the bowl is poured monolith, and in the walls and the bottom part is laid for strength reinforcement (diameter metallic rod is typically 12-13 mm). The inner surface of the pool spread waterproofing coating (tiles, mosaics, pvc film).continue reading