Ul Cbale Refers To The Wire And Cable Certified By Ul

UL CBALE refers to the wire and cable certified by UL in the United States. UL is the abbreviation of Underwriter Laboratories Inc. in English. UL was founded in 1894. In the initial stage, UL mainly relied on the funds provided by the fire insurance department to maintain its operations.

It was not until 1916 that UL was completely independent. After nearly a hundred years of development, UL has become a world-renowned certification body with a set of strict organizational management systems, standard development and product certification procedures. UL is governed by a council of representatives from safety experts, government officials, consumers, education, utilities, insurance and the standards sector, with day-to-day work being handled by the president and vice president.

At present, UL has five laboratories in the United States, headquartered in Northbrook Town, north of Chicago, and has corresponding laboratories in Taiwan and Hong Kong respectively.

The UL Safety Laboratory is the most authoritative in the United States and the largest private institution engaged in safety testing and identification in the world. It is an independent, not-for-profit, professional organization that conducts experiments for public safety.

It uses scientific testing methods to study and determine whether various materials, devices, products, equipment, buildings, etc. are harmful and harmful to life and property; determine, write, and issue corresponding standards and help reduce and prevent life.

Information on property damage, and conduct fact-finding business. It is mainly engaged in product safety certification and operating safety certification business. Its ultimate goal is to obtain products with a relatively safe level for the market, and to contribute to the guarantee of personal health and property safety.

As far as product safety certification is an effective means to eliminate technical barriers to international trade, UL also plays an active role in promoting the development of international trade.

Unit

UL's conductor specification is AWG, which is American Wire Guage, which means "American Wire Specification" in Chinese. Common units in UL standards are mil (mil) and cmil (circular mil), mil is a unit of length, and cmil is a unit of area.

ULCABLE some models

RHH: Low Smoke Halogen Free Flame Retardant Cable; Executive Standard: UL44

TW/THW/THW-2: American standard PVC insulated wire and cable; executive standard: UL62, UL83

THHN/THWN/THWN-2/TFN/TFFN: nylon sheathed wire; executive standard: UL62, UL83

XHHW: flame retardant polyolefin insulated cable and cable; executive standard: UL44

MC: metal armored cable; executive standard: UL1569

VNTC: bracket cable; executive standard: UL1277

UL wire and cable standard overview

1. Standard for bendable wires and cables

UL62 Flexible Cord and Fixture Wire

This standard covers all kinds of flexible cords, but does not include armored cables and wires and cables with voltages exceeding 600V, nor does it include wires and cables with various end connectors.

2. Communication wire and cable standards

UL444 Communication Cables (communication cable)

3. Electronic wire (equipment lead) standard

UL758 Appliance Wiring Material

4. Wire and cable reference standard (UL1581)

This standard describes sample preparation, testing and calculation methods for wires and cables covered by UL62, UL44 Wires and Cables, and UL83.