Vw 1 Cable Standard

Vw 1 ul1581 standard for vertical flame test this is a small scale test of the flammability of insulating materials.

Vw 1 cable standard.

Conforms to icea s 95 658 nema wc70 utilizing column a insulation thicknesses. Two clamps hold the. Cables pass ieee 1202 csa ft4 70 000 btu hr cable tray flame test 1 0 and larger. 3 1 out of 5 stars 2.

To pass the vw 1 test the wire must not burn longer than 60 seconds. It is conducted by using a single cable specimen portioned in a vertical position in a three sided metal enclosure that has a layer of untreated surgical cotton on the bottom. Ul listed as sunlight resistant 1 0 awg and larger black only. Ul listed for ct use 1 0 and larger.

The flame is applied for 15 seconds and repeated 4 more cycles after each time when the wire stops burning for a total of 5 cycles. Below is an overview of the most widely used north american fire test which is called vw 1 ul 1581. Ul 1581 vw 1 this was the first flame test developed for studying how flames spread on wire and cable. Ul vw 1 is the american standard for cables and wires also known as ul 1581 and determines flame retardancy.

This cable complies with the vw 1 flame test requirements in ansi ul 1581. Awm appliance wiring material this type of wire is defined by ul 758 and is meant to be used with consumer products in basic connectivity applications such as connecting a computer to a monitor or routing a usb cable from a motherboard to the outside of the computer. The csa ft1 cable standard and the cables are designed primarily for the north american and export markets. Ul vw 1 vertical flame testing.

The vw 1 flame test also known as the vertical wire flame test evaluates a wire cable s ability to resist fire while vertically suspended. All sizes carry the vw 1 flame test designation. The test is performed with a 24 wire and a tirrill burner. It is a standardized test to measure how the outer jacket responds when exposed to a flame in a vertical orientation hence the abbreviation vw vertical wire.

Yet another version of ul1581 the only difference is that the btu value is 210 000 instead of 70 000 and the cable spacing increases. Vw 1 will be found on the jacket of the cable if it has a vw 1 rating. Cvilux e208903 3 awm 20706 105c 60v vw 1 laptop ribbon cable 10 pin 14cm 4jpx4.