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Why Low Smoke Zero Halogen?
Standard power cable jackets are made from a PVC compound containing Chlorine (part of the Halogen Group), which, when burned release a toxic gas that can cause serious damage to humans and electrical equipment. This raises concerns in applications that have dense PVC cabling where electrical equipment or people are present. Low Smoke Zero Halogen, also known as Low Smoke Free of Halogen or (LSZH, LSOH, LS0H, OHLS) refers to the cable jacketing which is composed of thermoplastics/thermoset compounds that release limited smoke and no halogens when exposed to high heat/fire. This cordage was initially invented to solve two main problems: reduce smoke/improve visibility in an emergency fire escape situation and reduce toxins being released in such a fire that could harm victims exposed. This cordage is generally used where there is limited ventilation or where set standards require such health/safety measures. You can find the amount of halogen contained in typical LSZH Cable in Table 2 below.
|LSZH||Low Smoke Zero Halogen|
|LS0H||Low Smoke Zero Halogen|
|LSHF||Low Smoke Halogen Free|
|LSNH||Low Smoke No Halogen|
|NHFR||NonHalogen Flame Retardant|
|HFFR||Halogen Free Flame Retardant|
|FRNC||Fire Retardant, Non-Corrosive|
|FRLS||Fire Resistant, Low Smoke|
Using the table below, you can see that standard PVC cables contain vastly greater amounts halogen contents that any of the LSZH polymers.
|Polymer||Halogen Content % by Weight|
|EPR (Ethylene propylene rubber)||<.02|
|XLP (Cross-Linked Polyethylene)||<.02|
|CSPE (chlorosulfonated polyethylene)||13-26|
|CPE (chlorinated polyethylene)||14-28|
|PVC (polyvinyl chloride)||22-29|
|FEP (fluorinated ethylene propylene)||62-78|
Low Smoke Zero Halogen cabling is usually used in regulated industries such as government. New data centers are sometimes choosing to use LSZH cabling to help protect data center facilities from the harmful smoke in case of fire. Because data centers utilize large ventilation systems, even a small amount of smoke in a small area can quickly be distributed accidentally throughout the entire building through the ventilation systems. A side note is the National Electrical Code requires cables used in plenum spaces to be Low Smoke Emitting, which is another common usage of this cordage. Refer to the National Electrical Code(NEC), or the National Fire Protection Agency(NFPA) to determine if LSZH cordage is right for you.
The IEC 60320 C13 is a grounded 3 Wire connector rated up to 250V and 15 Amps. The C13 mates with a C14 inlet, and is commonly used in a jumper cable scenario in IT Installations providing power from a PDU to a server, router, switch or other computing device. Most people know the C13 as 'the thing that plugs into my computer' because it is the standard connector used to power most desktop computers. In a desktop computer application, the most common cable is the NEMA 5-15P to C13, which connects your standard North American wall outlet to a desktop computer. The iec 320 c13 c14 plug and connector are synonymous with Information Technology equipment primarily, but the C13 can be found powering equipment like medical devices and gaming consoles.
What does the IEC 60320 C13 Connect to?
|The IEC 320 type C13 connector is designed to connect to the IEC 320 C14 plug and inlet. The C14 Plug is commonly found on power cords located in office, commercial or data center settings since the C13 inlet is usually only found in those environments. The C14 Inlet is commonly found on a variety of IT Equipment like monitors, switches, printers, power adapters, and more.|
The IEC 60320 C14 is a grounded 3 Wire Plug rated up to 250V and 15 Amps. The C14 plug is one of the most commonly used plugs in the data center industry, especially the Inlet version, which is found on the vast majority of Information Technology devices that are produced today. The IEC 60320 C14 is typically used with either 18awg SVT, 18awg SJT(OW), 16awg SJT(OW) or 14awg SJT(OW). The types of cordages used will change the rating of the overall cord set. This plug is very common in consumer, commercial and industrial applications which can create many different names for this plug across different industries like the computer plug, IEC plug, and more generalized names. Some also refer to this as the iec C13 plug, or the c13 power plug because of the C13 connector that it mates with.
What does the IEC 60320 C14 plug into?
|The IEC 60320 C14 plug is designed to connect to the IEC 320 C13 connector and the outlet. The connector is found on a variety of 10-15A power cords, while the outlet is located on a variety of power supplies. The outlet is most commonly found on Power Distribution Units found in office, commercial, or data center settings as well as Power Adapter bricks.|
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