Copper Service Entrance Cable SER TYPE SE STYLE R
Service Entrance Cables are integral parts of any distribution and transmission system since they help in transmitting power from the service drop to the consumer. The service entrance serves the meter, protects appliances and help in electrical supply to other branch circuits inside the building or system. The Copper Service entrance is used to convey power from the service drop to the meter. This cable is also used to transmit power from the meter bas to the distribution panel. Type SE cable however is flexible and can be used in all applications according to the permission indicated by the standardization body. The copper service Entrance Type SER is widely used in electrical field because of its simple and sleek design.
Constructions
This cable is made up of copper material which one of the best electrical conductors. It has three primary wires where two phase conductors are colored differently while the neutral path is bare so as to avoid confusions which may lead to fatal short circuiting. The conductors are Type XHHW-2 or sometimes Type THHN/THWN is used. These conductors have a profound resistance to sunlight effects which make them appropriate for aerial installation.
The copper used in making the cable is soft hence can be easy to twist while making bends during use and at installation. However the cable assembly is properly reinforced using strong and enduring cable jacket. The jacket protects the conductors against external interference and are made from sunlight resistant polyvinyl chloride material.
There are three types of construction configurations available:
1.Conductor with concentric ground.
2.Conductor with round or concentric ground.
3.Conductor with a bare ground.
Insulation
The two types of conductors used in making this cable have their insulation systems. Type XHHW-2 conductor is insulated using the cross-linked polyethylene material. This material is very strong and is used as the insulation for various cables.Type THHN/THWN is a conductor which is jacketed using the PVC insulation then covered using a nylon jacket. This insulation is watertight and sufficient to guarantee a conductor longevity and proper service deliver to the user. Both the systems of insulation serve in protecting the conductors against high heat, abrasion, water, chemical corrosion and sunlight effects.
Various harsh elements that exits in the installation site defines while the cables are made with insulators which are sturdy and can rebuff the effects of constant fluctuation of temperature. The conductors must be well protected. A proper insulation system guarantees the users safety and also cuts down the expenditure that accrues due to frequent maintenance services as a result of poor cable jacket. The SE type conductor is well designed and manufactured to serve in both dry and wet locations.
Applications and Standards
Power delivered from primary distribution line when reaches a transformer has to be scaled down and divided up so that is supplied to the households at a safer amount. The process of doing this is called service drop. The Copper Service Entrance Cable Type SE style R is designed and manufactured to serve in this process.
Its manufacturing is in tandem with the production codes outline by the National Electrical Code. It also has the approval of ASTM, UL Standard and Federal Applications. In these guides are precautionary measures which outline how a product should be produced and delivered to the market. Contractors and consumers should do their shopping from accredited manufactures and sellers so that they are assured of quality.