UL ratings refer to fire protection ratings. UL fire protection ratings are divided into different levels from low to high, namely plenum grade, riser grade, commercial grade, general purpose grade, and residential grade.

1. Plenum grade. This includes CMP copper cables (UTP and ScTP) as well as OFNP or OFCP fiber optic cables, which are the highest - rated cables. When a fan is used to force air towards a flame on a bundle of plenum - grade cables, the flame on the cables will extinguish itself within 5 meters of spreading. Moreover, due to the chemical substances contained in this type of cable, no toxic smoke or vapor will be released when it burns or is exposed to extremely high temperatures. In the United States, plenum - grade cables are the preferred choice. In communication wiring, it is usually installed in the air return plenum system used in ventilation ducts or air - handling equipment.

2. Riser grade. This includes CMR copper cables and OFNR or OFCR fiber optic cables, which are the second - highest - rated cables. When a fan forces air towards a flame on a bundle of riser - grade cables, the flame on the cables must extinguish itself within 5 meters of spreading. However, there are no smoke or toxicity specifications. Countries other than the United States usually use this fire - rated cable in building riser and horizontal cables.

3. Commercial grade. This includes CM copper cables and OFN or OFC fiber optic cables. Commercial - grade cables are of a lower level than riser - grade cables. The flame on a bundle of commercial - grade cables must extinguish itself within 5 meters of spreading, but there are no restrictions on fan - forced air, nor are there any smoke or toxicity specifications. Commercial - grade cables are often used for horizontal wiring and are generally used in bundles.

4. General purpose grade. This includes CMG copper cables and OFNG or OFCG fiber optic cables. The performance of this grade of cable is similar to that of commercial - grade cables.

5. Residential grade. This refers to CMX copper cables, with no fiber optic classification, and is the lowest - rated in the UL fire protection ratings. The flame on a residential - grade cable must extinguish itself within 5 meters of spreading, but there are no smoke or toxicity specifications. Residential - grade cables are generally only applied in home or small - office systems where each cable is laid separately. It should not be laid in bundles because the way the flame spreads in a bundle of cables is very different from that of a single cable.

At the same time, INTEGRITY CABLE CO., LIMITED has also passed the high - level FPLP certification for fire alarm cables.

Shenzhen INTEGRITY CABLE CO., LIMITED attaches great importance to the continuous enhancement and improvement of production equipment, production technology, and production management. It focuses on the introduction and cultivation of technical and managerial talents. The company is committed to the production and research & development of 10 - Gigabit Ethernet copper cable products in the new 5G era. With an innovative spirit and excellent quality, it demonstrates unique craftsmanship!

The company is equipped with first - class production equipment, advanced laboratories, and inspection and testing equipment. It has established a combustion type test laboratory, an environmental type test laboratory, a mechanical and electrical performance laboratory, a transmission characteristic testing laboratory, a comprehensive room, etc. The company has successively passed the identification of high - tech enterprises, ISO 9001:2015 quality system certification, as well as multiple high - end product certifications such as UL, RCM, CPR, Delta, RoHS, CE, and Anatel, which verifies the strength of INTEGRITY CABLE CO., LIMITED.

INTEGRITY CABLE CO., LIMITED will continue to explore, innovate, and develop continuously. With the quality policy of "Strengthening process management, striving for continuous improvement, pursuing high - tech and high - quality products, and meeting customer needs", it will continuously optimize the industrial structure and enhance the value of its products. INTEGRITY CABLE CO., LIMITED is willing to develop together with colleagues in the industry and create new glories!