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neediness    
n. 穷困,贫穷

穷困,贫穷

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  • Building Connected? Your experiences, please. . . | Information by . . .
    well, i'm running the free version, and it started spewing requests to bid, so i started bidding them there is no point in getting the pro version i took the dog and pony show, and the salesman said, just bid what shows up, and see how much of it you get, and use the free version about $4k a year to get the pro version we shall see if i get anything off of it i bid 14 today, before going
  • Cold water pipe grounding and bonding requirements
    If the water pipe coming into the building qualifies as a grounding electrode which it sounds like it does, it has to be connected to the panel board in the house which will have the neutral and ground unbonded I don't know what the inspector is thinking
  • Are we allowed to run multiple feeders to one single building per NEC . . .
    Feeders I’m proposing a switchgear at building 1 which will have four energy meters of four units in two buildings Two meters for the two units in building one and two meters for the other building The two feeders running to the other building will be connected via fused disconnect Each feeder will have its own disconnect and will be connected to the panel I could have posted single
  • Water main grounding | Information by Electrical Professionals for . . .
    Hello, some jurisdictions in my area are requiring us to bond the water within 5 feet of the building entrance They are saying that this is not an option under any circumstances The way that I interpret the code I only have to do that if I’m wanting to use it as a grounding conductor to
  • Grounding electrode conductor vs EGC vs Bonding jumpers
    In my head, the grounding electrode conductor is the connections between building steel and the ground rod and all my connections for equipment, pipes, floor pedestals, ETC tied back into the GTB would be bonding jumpers or EGCs Any help clarifying this would be greatly appreciated
  • building steel as grounding electrode | Information by Electrical . . .
    to be connected at the following locations and used to extend the connection to an electrode (s): (1) Interior metal water piping located not more than 1 52 m (5 ft) from the point of entrance to the building shall be permitted to be used as a conductor to interconnect electrodes that are part of the grounding electrode system
  • Is SPD for a separately derived system mandatory or voluntary (NEC-2020)
    (B) Feeder-Supplied Building or Structure Type 2 SPDs shall be connected at the building or structure anywhere on the load side of the first overcurrent device at the building or structure (C) Separately Derived System The SPD shall be connected on the load side of the first overcurrent device in a separately derived system
  • Grounding requirements for multiple services | Information by . . .
    is connected to a grounding electrode in or at a building or structure, the same electrode shall be used to ground conductor enclosures and equipment in or on that building or structure Where separate services, feeders, or branch circuits supply a building and are required to be connected to a grounding electrode (s), the same grounding
  • Number of recepts on a 20A branch circuit
    It is not about making design decisions of how many branch circuits are needed, or what can be connected to any single branch circuit I like Larry’s example of a building with long hallways The janitor’s vacuum cleaner or floor buffer will be plugged into only one outlet at a time, so it does not matter how many outlets are on the same
  • Steel building grounding | Information by Electrical Professionals for . . .
    OK, Let's assume that the steel structure has every steels connected with each other and the building has 100 steel columns How many steel columns need to be grounded with ground rod? I am not asking the bonding jumper between steel column to electrical grounding system





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