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UL943认证耐久性测试要求

发布日期 : 2022-09-30

访问次数 : 974

接地故障分断器(GFCI)UL943认证需要进行耐久性试验评估其使用寿命,展丰检测实验室具备UL943测试能力,可办理接地故障分断器(GFCI)UL认证,接下来为大家介绍UL943认证耐久性测试要求。

UL943认证耐久性测试(Endurance test)要求

6.14 Endurance test 
6.14耐久性试验

6.14.1 A ground-fault circuit-interrupter shall have the necessary capacity for normal operation.
6.14.1接地故障断路器应具有正常运行所需的容量。

6.14.2 In order to determine compliance with 6.14.1,a ground-fault circuit-interrupter is to be caused to switch an inductive load adjusted for a value of load current equal to the ampere rating of the device and a power factor within the range of 0.75-0.80.
6.14.2为了确定是否符合6.14.1的要求,应使接地故障断路器切换感应负载,该感应负载的负载电流值应等于装置的额定电流,功率因数应在0.75-0.80范围内。

6.14.3 In performing the test described in 6.14.2,the device is to be switched"on"and,after one second,switched "off"at a rate of approximately 6 cycles of operation per minute for 3000 cycles.This test shall be performed using the supervisory circuit to operate the device.If the GFCI has a manual switching means,it shall be caused to operate an additional 3000 operations.
6.14.3在进行6.14.2中所述的试验时,应以每分钟约6次操作循环的速度“打开”装置,并在一秒钟后“关闭”装置,持续3000次循环。该测试应使用监控电路来操作设备。如果GFCI具有手动切换装置,则应使其额外运行3000次操作。

6.14.4 Reactive components of the load mentioned in 6.14.2 may be paralleled with each other if they are of the air-core type.An air-core reactor is to be paralleled with resistance adjusted to dissipate approximately one percent of the total power dissipated in the load without such resistance.
6.14.4 6.14.2中所述负载的无功部件如果为空心型,则可相互并联。空芯电抗器将与电阻并联,调整电阻以耗散负载中耗散的总功率的大约1%,而无需这种电阻。

6.14.5 The value of paralleled resistance R in ohms mentioned in 6.14.4 may be obtained by calculation from the relationshipin which E is the closed-circuit voltage at the load and I is the load current in amperes without resistance R.
6.14.5 6.14.4中提到的并联电阻R(单位:欧姆)的值可通过以下关系式计算得出:E是负载的闭路电压,I是负载电流(单位:安培),无电阻R。

6.14.6 In performing the test described in 6.14.2,the capacity of the supply circuit is to be such as to allow a closed-circuit voltage not less than 97.5 percent of the rated voltage of the ground-fault circuit-interrupter.Except when a higher value is agreed to by those concerned,the open-circuit voltage is to be in the range of 100-105 percent of the rated voltage of the ground-fault circuit-interrupter.A 1-A fuse is to be connected between the grounded conductor of the supply circuit and accessible conductive parts of the ground-fault circuit-interrupter.This fuse shall not operate to open the circuit.
6.14.6在进行6.14.2中所述的试验时,供电电路的容量应允许闭路电压不低于接地故障断路器额定电压的97.5%。除非相关人员同意更高的值,否则开路电压应在接地故障断路器额定电压的100-105%范围内。在供电电路的接地导体和接地故障断路器的可接触导电部分之间连接一个1-A保险丝。该保险丝不得操作以断开电路。

6.14.7 A ground-fault circuit-interrupter shall withstand being tripped by means of the supervisory circuit and reset,at rated voltage without load,25 times in as rapid succession as practicable.
6.14.7接地故障断路器应能承受监控电路的跳闸,并在无负载的额定电压下尽快连续复位25次。

6.14.8 A representative device that has been subjected to an endurance test shall also be subjected to the dielectric withstand test of 6.11.No other tests are necessary on this representative device.
6.14.8已进行耐久性试验的代表性装置也应进行6.11的介电耐受试验。该代表性装置无需进行其他试验。

6.14.9 A ground-fault circuit-interrupter intended to be used as an "ON""OFF"control shall be additionally investigated to requirements for miscellaneous motor controllers.The device shall comply with overload,endurance,and dielectric tests in accordance with the applicable requirements of the relevant Standard listed in Annex A,Ref.No.12.Compliance with these tests is permitted to be indicated with the applicable horse power rating marked on the product and the area near the"TEST"and"RESET"buttons is permitted to be marked"OFF"and"ON"respectively.
6.14.9应根据其他电机控制器的要求,进一步研究拟用作“开”“关”控制的接地故障断路器。设备应按照附录A参考号12所列相关标准的适用要求进行过载、耐久性和介电试验。允许在产品上标记适用的额定马力,并在“测试”和“复位”按钮附近分别标记“关闭”和“开启”,以表明符合这些试验。