Differences between THHN Wire UF-B and Service Entrance Cable

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There are all kinds of cables for different applications. We’ll tell you piece by piece. Most frequently used terms for the building electrical wire copper wire, THHN / THWN, son would Romex) cable-UF-B and Type SE (service entrance cable. All these son of copper cables have their own advantages and disadvantages each line according to demand. Each will be described below. Building Wire is just another generic term used in the same way as electrical conductors. Since it is mainly used in construction or construction area is a popular concept.

THHN / THWN Wire

THHN / THWN-2 copper electrical son is the simplest form of wire, which is used in homes, buildings and control circuits not exceeding 600 volts. All THHN wire is dual-rated THWN-2, THWN because that is so popular that the analysis of the South (the largest manufacturer of electrical wire in the U.S.) has decided to put the two assessments on all their buildings THHN wire. It is soft drawn bare copper wire is coated with PVC (polyvinyl chloride) insulation and a nylon lining for easy installation in cable trays. The Working Group from 18 to 10 AWG stranded or solid copper to come. The wire is more flexible, while the solid wire is easier to use / meander through difficult areas. Specifically, THHN wire is run through the houses and buildings, switches, sockets and lights. Sizes smaller gauge THHN is more common in 500 ‘coils that many suppliers do not cut sold. Wesbell Electronics will cut # 18 – # 10-100 ‘coils and reduce MCM # 8-1000 per foot! That’s right, you can buy 1 foot of wire, if necessary! Wesbell assume that each application is different and does not have to suffer contractors excess copper. When added in the resale price obtained, it could cost you the job! Buy a precise length to obtain accurate quotations, and do not have copper added to the end! Copper has surged to over U.S. $ 2 00/lb, so that each foot wire leaders!

Romex Wire

Son Romex electrical copper cables consist of several THHN / THWN cables) (Coordinator. example, Romex 12 / 2 is jacketed 2 THHN insulated son and a bare ground wire to a length of PVC. In this way, Electrical Contractors run only one wire on bulk rather than running separate cables of 3 or individually run each thread. Romex wire is used only for indoor applications. There is no protection against moisture, gas or solvent. It should not be used outdoors, even if it is in cable trays.

UF-B Cable

B-UF (underground feeder) son of the copper electrical cables are a slight upgrade of Romex wiring. She wrapped the same concept of THHN conductor with a jacket, unless it is a coat complex. The bonus to the UF-B cable that is to go outside and can even directly underground. There is no need for pipes or cables and trays of the price difference is not so important. If you leave the wire at all sure that you UF-B Romex instead of more expensive because it is not worth the expense for the replacement of Romex in the street% little more than about 10-15.

Service entrance cable type SE

Sometimes an “R” you see “(SER) or” U “(SEU) for the type SE. The R stands often for round () and U is the property. Southwire Type SE cable electric cable Input the service is mainly used to make electricity from the service drop to the device and on the basis of meter base so that the map of the distribution panel, but the cable can be used in all applications permitted where Type SE cable. SER can not be used in wet or dry locations at temperatures greater than around 90 ° C. Voltage Rating 600 Volts. Southwire Type SE cable is constructed with fade-resistant Type XHHW-2 conductors or Type THHN / THWN conductors. copper conductors are annealed (soft) copper. cable assemblies and strengthening with bands resistant light gray polyvinyl chloride (PVC) coated. Available as a wire 1 with a concentric pattern, 2 conductors with ground round or concentric, or 3-wire with bare soil. SE cable is wrapped in vinyl chloride resistant to sunlight gray (PVC).

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