1. 參數(shù)資料
    型號: P2702AB
    英文描述: SIDAC|160V V(BO) MAX|800MA I(S)|TO-220VAR
    中文描述: SIDAC的| 160V五(公報)最大| 800mA的我(縣)|對220VAR
    文件頁數(shù): 79/161頁
    文件大?。?/td> 986K
    代理商: P2702AB
    SIDACtor
    Data Book
    GR 1089-Core
    Teccor Electronics
    (972) 580-7777
    4 - 5
    R
    R
    Passing Criteria
    Passing criteria for the First Level Lightning Surge Test and the First Level AC Power
    Fault Test is that the EUT will not be damaged and it will operate as intended after the
    stress is removed. Passing criteria for the Second Level Lightning Surge Test and
    Second Level AC Power Fault Test is that the EUT may be damaged, but it may not
    become a fire, fragmentation, or electrical safety hazard. Passing criteria for the
    Current Limiter Test is that the EUT may be damaged, but it may not exceed the
    acceptable time/current criteria (i.e., it can not cause the wiring simulator in Figure 4-2
    to open) nor become a fire, fragmentation, or electrical safety hazard.
    The indicator used in measuring fire, fragmentation, and electrical safety hazards is a
    bleached, untreated cotton cheesecloth which is wrapped around the EUT.
    Compliance with testing is determined by the absence of ignition, charring, and the
    ejection of molten material or fragments.
    Lightning Fault Immunity Test
    Metallic Voltage
    - is defined as the potential difference between Tip and Ring. Metallic
    voltages occur when there is an imperfect balance on the twisted pair. This imbalance
    typically arises due to unmatched components, but can also occur when longitudinal
    surges are converted to metallic surges due to asymmetrical operation of over-voltage
    protectors.
    Longitudinal Voltage
    - is defined by Bellcore as half of the sum of the potential
    difference seen between the Tip conductor and earth ground and the Ring conductor
    and earth ground. During transient activity, damaging voltages are propagated over
    the phone lines raising the potential difference of each line with respect to earth
    ground. It is this potential difference that is often attributed to failed network equipment
    and is simulated in Tests 1, 2, 3, and 5 in Table 4-2.
    Test 4 in Table 4-2 simulates transients that are coupled to the network equipment via
    ground conductors. These transients occur when nearby lightning strikes produce
    large surge currents which generate excessive voltage due to the resistive path of the
    protector and power grounds.
    First Level Lightning Surge Test
    To pass the First Level Lightning Surge Test, the EUT must be undamaged and
    continue to operate properly after the stress is removed. This is referred to as passing
    operationally
    . The conditions for the First Level criteria are shown in Table 4-2. The
    applicants have the option to submit their equipment to meet surges 1, 2, 4 and 5 or
    surges 3, 4, and 5.
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