GB/T 12785-2002 in English

《GB/T 12785-2002潜水电泵 试验方法》由TC201（全国农业机械标准化技术委员会）归口，TC201SC4（全国农业机械标准化技术委员会排灌设备和系统分会）执行，主管部门为中国机械工业联合会。
本标准规定了潜水泵的试验方法。本标准包括了两种测量精度等级：1级适用于较高精度的试验，2级适用于较低精度的试验，两种测量精度等级包含了不同的容差系数值、容许波动值和测量误差限。本标准适用于电源电压660V及以下，频率50Hz和60Hz的各类潜水电泵，包括各类潜水电动机和潜水泵的试验。额定电压660V以上的潜水电泵的试验可参照本标准规定的方法进行。

Scope

This standard specifies the test methods for submersible electric pumps. This standard includes two measurement accuracy levels: Level I is suitable for higher precision tests, and Level 2 is suitable for lower precision tests. The two measurement accuracy levels include different tolerance coefficient values, allowable fluctuation values and measurement errors. limit. This standard applies to all kinds of submersible electric pumps (hereinafter referred to as electric pumps) with a power supply voltage of 660 V and below and a frequency of 50 Hz and 60 Hz, including the tests of various types of submersible motors and submersible pumps. The test of submersible pumps with a rated voltage above 660 V can be carried out with reference to the methods specified in this standard.