1/30/2024 0 Comments 100 amp service cable![]() So pay a consulting fee or buy a case of beer or a jug of hooch for a licensed local electrician to line out your project for you. run Larry, please check the sizing tables in the article above and let me know if any of that is unclear or confusing. You want to pass your inspection first time around but without spending more money and time than you have to. On by danjoefriedman (mod) - What size service entrance cable do I need for a 100 amp service and a 150 ft. One of the most important is the size of the service entrance cable. (NEC Code) Looking for wire size for 100 amp service If you are trying to set up a 100 amp conduit circuit, you will need to make sure to choose the right wire size. You need good advice before making electrical mods. When it comes to determining the size of the ground wire for a 100 amp service, there are a few factors that need to be considered. My friends here in PM wish you well and would never knowingly mislead you but few of us (including me) are electrical professionals. While this is presented in tables, an informed judgement is still required. When determining feeder conductor size, youll want to consider the 'lowest temperature rating of any connected termination, conductor, or device' as per National Electrical Code (NEC) Article 110.14(C). OTH a 100 Amp service is defined by the breaker and the conductors it feeds have to meet code requirements for Ampacity, conduit fill, insulation, placement in construction, max ambient air temp, and other factors. ![]() In electrical practice the overcurret protection is intened to protect the conductors it feeds not the power consuming equipment. #4 may be technically adequate for your immediate application for a 100 Amp service for equipment that's seldom run to capacity but when feeding a pump or a heater for example #4 may not be suitable. However, if the 100A is your entire service, a 'discount' kicks in: 310. Look up accaptable ampacity in the NEC and your local code for your application. NASSAU ELECTRICAL SUPPLY Aluminum 2-2-2 Triplex URD Ramapo 100 AMP Direct Burial Wire Service Cable (100FT): Electrical Cables: : Tools & Home. They're satisfactory in most situatations but not always suited to every application. Remember NEC and local code represents minimum standards. Then consider conductor size and conduit size. ![]() Some jurisdictions require upgrading of the branch circuit or sometimes even the whole system if any parts is sub-code. Maybe not in Wisconsin but certaily in warm climates. Some jurisdictions have more stringent requirements for conductor ampacity and other electrical minutia. ![]()
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