There are several different fire performance tests for cables. The purpose of the test is to verify that the cable will continue to maintain electrical continuity or functionality for a defined period of time in a simulated fire condition. These cables are used to provide power to fire survival equipment, fire alarms and emergency lighting etc. BS6387 - BRITISH FIRE PERFORMANCE TEST One of...

Cable insulation is designed to withstand the voltage stresses experienced by the cable during its expected life. Insulation levels define various insulation thicknesses within a single voltage rating. The two most common levels are 100% and 133%. Typically, the 100% insulation level is used for grounding systems, sometimes referred to as the ground insulation thickness. Likewise, the 133%...

For a long time, wires and cables with PVC as the base material or with halogens such as deca bromine as the main flame retardant almost monopolized the main market of wires and cables. However, when halogen-containing substances are burned, HCI or other toxic corrosive gases are released. These toxic gases and thick smoke not only endanger human life, but also seriously corrode instruments and...

Walking beam heating furnace overview The walking beam heating furnace is a continuous heating furnace that moves the blank step by step by the upward, forward, downward, and backward movements of the furnace bottom or the water-cooled metal beam. The walking beam heating furnace is also a continuous heating furnace. It relies on a special stepping device to move according to a...

The air box pulse bag filter is an improved new high-efficiency air box pulse bag filter based on the bag filter. In order to further improve the air box pulse bag filter, the modified air box pulse bag filter retains the advantages of high purification efficiency, large gas processing capacity, stable performance, convenient operation, long filter bag life, and small...

Recycled Plastics Market is expected to grow at a CAGR of 6.6% during the forecast period and is expected to reach US$ 55.26 Bn by 2026. Recycled Plastics Market  Scope: The Recycled Plastics Market is predicted to develop at a quicker rate during the forecast period 2021-2027. Supply and demand trends, costs, pricing, shares, volumes, sales, and gross margins are among the...

Definition of steelmaking: use oxidation method to remove impurities in pig iron and scrap steel, add an appropriate amount of alloy elements to make it into steel with high strength, toughness or other special properties, this process is called " Steelmaking". Why steelmaking: Because pig iron cannot be widely used. High carbon content: no austenite at high temperature; poor performance:...

The iron resources in the earth's crust are relatively abundant, accounting for about 5%. In iron ore, iron mainly exists in the form of oxides and carbonates. Because the affinity of iron and oxygen is not strong, it is easier to be reduced. Due to the low production cost and the formation of various alloys of iron, carbon and other elements, it has properties that can meet the requirements of...

The knowledge of electric arc candle lighter The following paper will take you to know about the electric arc candle lighter. As a common ignition tool in personal and family life, lighters are a must-have for many friends and families due to their advantages of being light, portable and easy to use. It is also its wide range of uses and indispensable. Many inferior lighters are pervasive,...

Putting a lighter in a car is likely to cause an explosion. The reason for the lighter exploding is also very simple. There are many types of lighters on the market, such as electric arc lighters, kerosene lighters, and heating wire lighters. These are relatively safe, but there are potential safety hazards for cheap ordinary lighters. Common lighters are filled with flammable gas. On the...