Underground Service Entrance (USE-2) Cable Considerations: When choosing an SER cable, it’s essential to consider the environmental conditions it will be exposed to, such as sunlight or moisture, to ensure the insulation and overall construction are suitable for the intended application.Specifications: SER cables come in various sizes and are typically composed of aluminum or copper conductors insulated with robust jackets like XHHW-2, THHN, or THWN.It is primarily used to transport electricity from the service drop to the meter base and subsequently to the distribution panelboard. Usage: Service Entrance Cable (SER) is pivotal in connecting the electric meter to the main service panel.They are also flame retardant, enhancing the safety of your electrical system. Advantages: The nylon coating of THHN/THWN wires offers additional protection against physical damage.They are ideal for exposed and concealed work in locations that may be dry or wet. Applications: These wires are extensively used in conduit and cable trays for services, feeders, and branch circuits in commercial or industrial applications.Characteristics: THHN (Thermoplastic High Heat-resistant Nylon-coated) and THWN (Thermoplastic Heat and Water-resistant Nylon-coated) wires are renowned for their durability and heat, moisture, and oil resistance.The choice of cable not only impacts the performance of your electrical setup but also influences its durability and maintenance needs. When planning a 200 amp service, selecting the correct cable type is crucial for ensuring your electrical system’s safety, efficiency, and longevity. Our electrical panel cost calculator can help estimate the cost of 200 amp upgrades.Ĭonclusion Cable Types and Their Applications Whether installing a new service or upgrading your existing setup, understanding the wire size for 200 amp service is the first step towards a safe and efficient electrical system. It’s crucial to adhere to the guidelines set by the National Electrical Code (NEC) to avoid potential hazards and ensure that your electrical system operates at its peak efficiency. The wire size for 200 amp service acts as the lifeline of your electrical system, carrying the substantial electrical load to power everything from lighting to heavy machinery in commercial settings. Selecting the appropriate wire size for a 200 amp service is not just a recommendation-ensuring safety and efficiency is necessary. The ampacity of a 200 amp service denotes the maximum amount of electrical current that the main service panel can safely distribute across various circuits. This electrical service can handle a maximum load of 200 amps, making it a popular choice for modern residential properties and commercial spaces that house numerous appliances and electronics. Understanding the intricacies of what size wire for 200 amp service is paramount for homeowners and commercial building managers alike. Check the table below for the correct gauge and distance. You should increase wire size by 20% for every extra 100 feet run to account for voltage drop.įor a 200-amp cable size spanning over 200 feet, choose a 500 kcmil copper wire or a 1000 kcmil aluminum wire. According to the NEC, the wire size for 200 amp service is a 3/0 AWG copper wire or 4/0 AWG aluminum wire.
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