1. This is the highest required power cord (PlenumCable) in the UL fire protection standard. The applicable safety standard is UL910. The test requires that multiple samples be laid on the horizontal air duct of the device. 87.9KW gas Bunsen burner (300, 000 BTU / Hr) for 20 minutes. The eligibility criterion is that the flame must not extend beyond 5 feet from the flame front of the gas Bunsen burner. The optical density has a maximum peak value of 0.5 and an average density value of a maximum of 0.15.

2. This is a UL standard commercial power cable (RiserCable) in the UL standard. The applicable safety standard is UL1666. The experiment stipulates that multiple samples should be laid on the simulated vertical shaft and the specified 154.5KW gas Bunsen burner (527,500BTU / Hr) for 30 minutes. Eligibility criteria are that the flame cannot spread to the upper part of a 12-foot-tall room. Trunk-level power cords have no smoke concentration specifications and are generally used for vertical and horizontal wiring on the floor.

3. This is a UL standard commercial power cable (GeneralPurposeCable). The applicable safety standard is UL1581. The experiment stipulates that multiple samples should be laid on a vertical 8-foot stand and burned with a specified 20KW ribbon torch (70 10,000 BTU / Hr) for 20 minutes. The acceptance criterion is that the flame cannot spread to the upper end of the power cord and extinguish itself. UL1581 is similar to IEC60332-3C, except that the number of power cables is different. Commercial-grade power cords do not have smoke density specifications, and are generally only used for horizontal wiring on the same floor, not for vertical wiring on the floor.

Fourth, this is the UL standard general power cable (GeneralPurposeCable), the applicable safety standard is UL1581. The commercial and general test conditions are similar, and are approved for use in Canada and the United States. General-purpose power cords have no smoke density specifications, and are generally only used for horizontal wiring on the same floor, not for vertical wiring on the floor.

5. This is the UL standard household power cord (RestrictedCable). The applicable safety standard is UL1581, VW-1. The test requires that the sample be kept vertical and burn with a test torch (30,000, TU / Hr) for 15 seconds Clock, then stop for 15 seconds and repeat 5 times.

Ul power cord manufacturers remind you: This is the specification for the release concentration of hydrogen chloride (HCL) in the IEC and BS standards. Halogen contains fluorine (Florine), chlorine (Chlorine), bromine (Bromine), iodine (Iodine) and the radioactive and volatile element rhenium (Astatine), the composition is very toxic. The experiment stipulates that when the combustion furnace is preheated to 800 ° C, a built-in 1.0g sample is pushed into the furnace, and the HCL is dissolved in water by using the airflow discharge rate, and then the halogen acid content of the aqueous solution is measured.

If the amount of halogen acid (HCL) released by the ul power cord manufacturer is less than 5mg / g when burning, it can be called a halogen-free power cord (LSOH). When g is less than 15mg / g, it can be called low halogen power line (LSF). It is worth noting that the IEC60754-1 method cannot be used to determine materials with HCL content less than 5 mg / g, that is, it cannot be judged whether it is "halogen-free". The need to determine whether it is completely halogen-free can be determined using the IEC60754-2 method.

The above are several standards of UL certified fireproof power cords shared by UL power cord manufacturers, hoping to help everyone.