An inspection of each electrical component shall include the following:
- (a) A detailed check of parts against the drawings submitted by the applicant to determine that: (1) The parts and drawings coincide; and (2) the minimum requirements stated in this part have been met with respect to materials, dimensions, configuration, workmanship, and adequacy of drawings and specifications.
- (b) Exact measurement of joints, journal bearings, and other flame-arresting paths.
- (c) Examination for unnecessary through holes.
- (d) Examination for adequacy of lead-entrance design and construction.
- (e) Examination for adequacy of electrical insulation and clearances between live parts and between live parts and the enclosure.
- (f) Examination for weaknesses in welds and flaws in castings.
- (g) Examination for distortion of enclosures before tests.
- (h) Examination for adequacy of fastenings, including size, spacing, security, and possibility of bottoming.