Electrician Talk banner
load calculation
1-9 of 9 Results
  1. Commercial Electrical Forum
    Hello, I am new here and only been working on a few commercial projects. I'm working on a small project upgrading an electrical panel from an old (outdated)100AMP panel to 200AMP. The Disconnect switch from the outside meter is currently 100AMP and it has aluminum wire instead of copper from...
  2. NEC Code Forum
    I'm performing a residential load calculation, as required by the city, for a swimming pool equipment install. I'm having a little trouble with the air conditioner. The equipment tag on the compressor unit mounted on the slab outside says: Compressor RLA: 14.9 LRA: 96 Minimum CKT...
  3. General Electrical Discussion
    Could someone please confirm my understanding of 3 phase generators power output. I'm in Australia so all calculations are in 240v A 30kVA generator in total can provide a theoretical maximum of 30,000/240 = 125A which would be 41.6A per phase? Using a power factor or 0.8 we get a total of...
  4. General Electrical Discussion
    I have a customer who has two ductless heating/cooling units (for two lower floor rooms), floor heat (for 3 baths and one lower floor bedroom), 3 bathroom ceiling heaters rated at approx. 12 amps each, and a gas furnace. I calculated the ductless units, anticipated floor heat, and ceiling...
  5. Services and Service Equipment
    hello guys I'm new to the forum and need some help. I'm doing an addition onto one unit within a two family dwelling, it is roughly 1,900 sq ft I completed a load calc no problem using the standard method, the total load is 142.5 amps for both units, 102.5 amps for the first floor unit including...
  6. General Electrical Discussion
    My problem is a 24 unit co-op building that was renovated in the late 1970s. It has three phase, 4 wire, electrical service conductors that feed a 400 Ampere 3 pole fused switch which supplies the apartments and the public areas. I am trying to work backwards from the 400 amp electrical switch...
  7. NEC Code Forum
    I have an interesting situation. I have a 12k solar PV array for a residential service. There are two interters that is expected to output 22 amps and 30 amps repsectively. They are also to have breaker in the Load Box at 30 amps and 50 amps respectively. According the my HQs read on NEC it...
  8. General Electrical Discussion
    I have a customer who has a double wide trailer and two other outbuildings on the same piece of property. The trailer is powered from the meter pack which has space for other breakers. Right now it has two other 125A double pole breakers which serve the other two buildings. Is there anything...
  9. NEC Code Forum
    In NEC Article 220, Part III (Feeder and Service Load Calculations) what provision is there for an air conditioner load ? W-H-E-R-E in Part III does air conditioner load fit into the scheme of things? Ranges, clothes dryers, etc, are addressed. But what about an air conditioner load ...
1-9 of 9 Results
Top