Short answer: testing requirements for electrical accessories should be defined by product type, rated voltage or current, mechanical load, material, project standard and buyer acceptance rule.
| Electrical checks | Voltage rating, insulation requirement, continuity, contact resistance or SPD rating can be checked according to product type. |
|---|---|
| Mechanical checks | Load, dimensions, fit, crimping interface, clamp range and assembly compatibility should be checked where relevant. |
| Material checks | Material grade, plating, hot-dip galvanizing, copper layer, stainless grade or UV resistance may be requested. |
| Visual inspection | Buyers can request photos for labels, packing, product finish, batch marks and accessory completeness. |
Testing requests should be stated before quotation. Late test report requirements can change lead time and cost.