注意:很多, 如果不是大多数, new instruments do not have a certificate of calibration unless the purchaser requests it.
Some service centers don’t calibrate inside micrometers because they put an inside micrometer in the bore and set it, then slide it out and use a calibrated outside micrometer to measure the inside micrometer. 这是可以接受的做法吗? 如果是这样，内部千分尺需要校准吗?
使用内部千分尺作为量规, and performing the actual measurements with outside micrometers is an acceptable practice. The inside micrometers should be identified as “for reference only”; and the outside micrometers must be calibrated.
Where do we stand on calibration if we have a calibration unit that conforms to NIST and kept up. 亚虎app客户端下载能校准自己的仪表吗?
A service center performing in-house calibration must have a procedure for calibration, and in general the instrument used to calibrate other instruments must have an accuracy at least 4 times greater than the device being calibrated.
The QR code is a link to the accreditation program information on the EASA website.
The visual inspection criterion does not require dismantling of the bearing. The Checklist explanation includes the following statement: It is not a requirement that ball and roller bearings be dissected to determine the apparent failure mode. 然而, the apparent mode of failure is to be recorded for sleeve bearings.
The scope states that the program applies to three-phase squirrel-cage motors [only]. 此外，该范围不限制它的任何额定电压. That is, low and medium voltage three-phase squirrel-cage motor ratings are both included.
The primary judgment criteria for making this determination are the results of the tests, 以及对绕组的观察. 关键测试是空载测试, with the no load current being the primary indicator of acceptability. The winding data is judged acceptable if the no load current is within a reasonable range (See Checklist item #18 No-load tests.)也, 通过观察槽填充是否正常, 这是, 不低, 每安培的导线面积应该是可以接受的. 如果测试和观察标准都满足, 绕组可以判断可接受的认可的维修.
Per the primary reference source, AR100, only unfiltered vibration levels are required. 因此，不需要振动谱.
There will be a 1-year grace period following the publishing date of a revised edition of AR100; which would be sufficient time for both auditors and accredited service centers to implement any changes necessary to conform to the revised edition. 进一步, if there was a change(s) in AR100 that appeared to require a longer period for implementation, 这将根据具体情况进行处理.
There needs to be one temperature sensor on each part (usually a stator) being processed in the burn off oven.
不需要，需要烤箱温度感应. 然而, it must be assured that the part being baked has attained the varnish/resin manufacturer’s minimum curing temperature, and held at or above that temperature for at least the minimum cure time given by the varnish/resin manufacturer.
There is a requirement to “maintain a record of the accreditation label 序列号s and motors they are placed on.“是否有特定的信息需要记录在案? 是否有报告资料的要求?
关于这个主题的具体文本载于 项目条款及条件 as:
"Accredited firms must maintain a list of labeled motors with corresponding label and service center job numbers. At a minimum the listing for each accredited repair must include the label number and the service center job number. 关于修理电机的附加信息, 如制造商, 额定功率, 速度, 序列号, 等. 可以列入清单，但不是必需的."
Our service center is using a VFD with a sine wave filter as the power supply for our motor test panel. 它还具有相位电压和电流读数. Does this satisfy EASA认证 in regards to the test panel requirements?
根据认可检查表和AR100第4条.5, the motor needs to be test operated at rated voltage and frequency. Thus, the use of a VFD would be acceptable as long as the test run meets these requirements. Using the sine wave filter is beneficial because the test results should be comparable to those if and when the motor is operated from a utility power supply. The voltage and current for the motor should be measured somewhere between the output of the test panel and the motor.
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