Document ID: chunk:federal_register_of_legislation:F2019L00968:clause:2_15
Version: federal_register_of_legislation:F2019L00968
Segment Type: clause
Provision Reference: sch 2 cl 15
Character Range: 14425–16199

15  Conducting tests

General requirements

 (1) Subject to subsections (2) and (3), the motor's efficiency must be tested in accordance with the requirements mentioned in subclause 6.1.3 of IEC 60034-2-1 Ed. 2.0 (Method 2-1-1B – Summation of losses, additional load losses according to the method of residual loss).

 (2) The testing requirements specified in subsection (1) can be met by using the alternative test methods specified in Table 3 in Schedule 2 of this Determination.
Note:  In the standards the alternative test method referred to in this subsection may be described as a "technically equivalent" method.

Special requirements—totally enclosed air over motors

 (3) For totally enclosed air over motors, the testing requirements specified in subsection (1) must be met while using an externally and independently generated air-stream, at laboratory ambient air temperature, directed over the motor's stator from the non-drive end, with air-flow parallel to the motor's shaft at the minimum declared air velocity specified by the manufacturer for normal operation of the product.
 (4) For tests conducted according to subsection (3):
 (a) measurement of the externally-generated air flow velocity must be made using a hot-wire anemometer, or similar, type instrument; and
 (b) efficiency measurements must be carried out using the same procedure as for products subject to the requirements of paragraph 15(1); and
 (c) the power required to generate the air-stream must not be counted against the results for the motor under test.
 (5) In this section:

totally enclosed air over motor means a frame surface cooled machine, the exterior of which is cooled by a ventilating means external to the motor, for example by a fan.
Part 4—GEMS labelling requirements