Explosion-proof marker light Brief description Explosion-proof marker is used to describe the explosion-proof electrical equipment explosion-proof grade, temperature group, explosion-proof type and the applicable area of ​​the logo.
Explosion-proof equipment definition: Electrical equipment that does not cause the surrounding explosive atmosphere to ignite under specified conditions.
1. Explosion-proof mark EX - indicates that the equipment is explosion-proof electrical equipment;
2. Explosion-proof structural form—shows what kind of measures the equipment adopts for explosion protection. For example, d is a flameproof type, p is a positive pressure type, i is a safety type, e is an increased safety type, etc.;
3, explosion-proof equipment category - divided into two categories, I for underground coal mining equipment, II for the factory electrical equipment;
4, explosion-proof level - divided into A, B, C three, indicating the strength of its explosion-proof ability;
Example: If the electrical equipment is type IIA flameproof T3 group, the mark is ExdIIAT3; if the electrical equipment is type IIB positive pressure, the temperature group is T6 group, the mark is ExpIIBT6; if the electrical equipment uses more than one compound type, The main type of explosion protection is marked first, followed by other types of explosion protection. For example, the main body uses intrinsically safe type IIC flameproof components, the temperature group is T4, and the mark is ExidIICT4; if the main components are flameproof type IIC, the T4 group The rest of the components are in safety type, and the explosion-proof mark is ExdiIICT4.
PET short fiber needle punched nonwoven Geotextile Made from polyester(PET)short fiber by nonwoven needle punched manufacturing process, it has isolation, filteation,drainage, reinforcement, protection and maintenance etc. function.
Application Areas
Used in motorways, sport facilities, tunnels and underground facilities, art buildings, underground, agricultural areas, garden terraces, airports, mining fields, railways, solid waste storage areas, irrigation channels and reservoirs, shore protection and isolationareas; as a reinforcementagainst cracks between insulation layers; as a separator between waterproofing and thermal insulation layers; to protect insulation; to drain excess water; to prevent drainage pipes from plugging by wrapping them around; to avoid sinking and in many other applications.
Needle Punched Nonwoven Short Filament Geotextile Technical Parameter
Unit Weight of Geotextile
100g/m2, 150g/m2, 200g/m2, 250g/m2, 300g/m2, 350g/m2, 400g/m2, 450g/m2, 500g/m2, 600g/m2, 800g/m2 or customerized
Contact:
Pet Short Fiber Nonwoven Geotextile
Pet Short Fiber Nonwoven Geotextile,Short Fiber Nonwoven Geotextile Fabric,Pet Composite Geotextile,Short Fiber Geotextile
Shandong Tianhai New Materials Engineering Co., Ltd , https://www.chinatinhy.com