Manufacturer Price Quality PV Cable Pvf1-F 1169 PV Solar Cable

Manufacturer price quality PV Cable Pvf1-F 1169 PV solar cable
Product Description &Parameters of UL Approved Solar Cable

 

Conductor: Stranded bare copper or tinned Copper

Insulation: ROHS thermosetting insulation material,prior color black or as customer's request.

Sheath: LSZH&UV-resistant electron-beam cross-linked thermosetting Polyolefin copolymer ROHS material,prior color black or as customer's request.

Nominal Voltage : 600V(AC) 1000V(AC) 2000V(AC)

Characteristic: Electron-beam cross-linked compounds; UV,ozone and hydrolysis resistant; High temperature resistant,the materials do not metl or flow; Good cold flexibility; Very long service life>25 years at 90ºC; Compatible to all popular connectors

Temperature Rating: Working Temperature-40°c upto +90°c,Max conductor Temperature 125°c,Allowable short circuit temperature 200°c in 5 second.

Service Life:Expected life span≥25years

Bending Radius:Fixed installation>4D        Occasionally moved>5D

Applications: Mainly used in wiring of solar power system with earth or no earth

Contact us, please. 

A hard disk drive (HDD), hard disk, hard drive or fixed disk[b] is a data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces.[2] Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. HDDs are a type of non-volatile storage, retaining stored data even when powered off.[3][4][5]

Introduced by IBM in 1956,[6] HDDs became the dominant secondary storage device for general-purpose computers by the early 1960s. Continuously improved, HDDs have maintained this position into the modern era of servers and personal computers. More than 200 companies have produced HDDs historically, though after extensive industry consolidation most current units are manufactured by Seagate, Toshiba, and Western Digital. As of 2016, HDD production (in bytes per year) is growing, although unit shipments and sales revenues are declining. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), which have higher data-transfer rates, higher areal storage density, better reliability,[7] and much lower latency and access times.[8][9][10][11] While SSDs have higher cost per bit, SSDs are replacing HDDs where speed, power consumption, small size, and durability are important.[10][11]

The primary characteristics of an HDD are its capacity and performance. Capacity is specified in unit prefixes corresponding to powers of 1000: a 1-terabyte (TB) drive has a capacity of 1,000 gigabytes (GB; where 1 gigabyte = 1 billion bytes). Typically, some of an HDD's capacity is unavailable to the user because it is used by the file system and the computer operating system, and possibly inbuilt redundancy for error correction and recovery. Performance is specified by the time required to move the heads to a track or cylinder (average access time) plus the time it takes for the desired sector to move under the head (average latency, which is a function of the physical rotational speed in revolutions per minute), and finally the speed at which the data is transmitted (data rate).

The two most common form factors for modern HDDs are 3.5-inch, for desktop computers, and 2.5-inch, primarily for laptops. HDDs are connected to systems by standard interface cables such as PATA (Parallel ATA), SATA (Serial ATA), USB or SAS (Serial attached SCSI) cables.

3.5in External Hard Drive Enclosure

3.5In External Hard Drive Enclosure,3.5In Sata Drives - Usb 3.0, 3.5In Solid-State Drive Enclosures, 3.5In Solid-State Drive - Usb 3.0

HuiDeGui Technology Development Company Ltd. ,