Conductors should be of an appropriate size for the application, and should pass through openings with no sharp edges with sufficient clearance to prevent fraying or damage. If they are accessible to the user of the product, they must be tested to withstand a certain amount of “strain” (for more on strain relief, see below). Finally you can never cross low voltage and high voltage conductors unless the low voltage wiring is rated for the higher voltage. For example, a wire carrying 12 volts may be in contact with a wire carrying 120 volts so long as it is rated for 120 volts itself.
This process has led production people to do small runs of 50 or 100 units, then they call us so they can avoid the whole system of full certification and follow-up service. We come to the site, inspect the units, label them, and then we go away. If you have another small run we can come back and do it again. We’ve already done the testing , so this time all we have to do is verify that the units you want labeled are the same. Once we do we put a sticker on them. That makes this follow-up less costly. Once we’ve labeled the units, we’re gone. In cases like these we are red-tag erasers. If you get red-tagged we can free the piece of machinery so you can get back into production.
Having Trouble getting your project across the Finish Line at your NRTL?
We are here to help you!
Client A had been working with a NRTL for 15 months. Staff from the USA and Europe had also visited them at their facility multiple times only to be sent construction letter after construction letter. Once they heard from the engineer that the project was in for final review but nope, only to be sent another construction review letter outlining brand new items that would not be accepted.
With the frustration mounting, they Google “Help with NRTL” and found Product Safety Consulting Inc.!
We reviewed the latest two construction letters, went online and ordered a Certified Wiring Harness and various components, contacted the NRTL and presented the changes and reached agreement, flew to Europe and updated the construction, help modify the NRTL draft report, submitted the revised report, photos and illustrations to NRTL and 7 days later we were scheduling the IPI inspection for this brand new client for this NRTL. Total work time was 15 business days.
Give us a Jingle and let us see if we can help you start, continue or better yet Finish that NRTL project!