Hello Jerry: This is how I see the situation:
I agree with Gabriel, I think it would pass UL 1459 approvals...however, there is something else you may need to consider also. Who are you selling the device to? If you are selling to a service provider, they may require that the product complies with Bellcore specifications. Your product would be subject surge testing and power cross testing (GR-1089-CORE). After first level surges your product would be required to be in working condition. After 2nd level (5kV) surges, your product could not present a fire or electrical safety hazard. If your product is to be sold to an end user, it may be subject to FCC requirements. To meet the FCC requirements, your would need to demonstrate that your product would not harm the network after being subjected to various environmental stress tests, including electrical strength and surge testing. My guess is that your product would not harm the network if this etch opens, but you will need to check it out! My opinion only... Mel Pedersen Midcom, Inc. Homologations Engineer Phone: (605) 882-8535 [email protected] Fax: (605) 886-6752 ---------- From: Gabriel Roy/HNS[SMTP:[email protected]] Sent: Friday, June 06, 1997 9:00 AM To: Jon D Curtis Cc: treg Subject: Re: BOUNCE [email protected]: Non-member submission from [[email protected] (Jerry Martin)] (fwd) Jerry Martin wrote - We are designing a product that will be used in a Network Interface Device (NID) that mounts on the outside wall of a house. The enclosure will be a 5V material and the customer will not have access to the network circuitry. We would like to submit the product to UL 1459 (knowing that it will be replaced by UL 1950 in April, 2000). With so much energy available during the overvoltage test, we're concerned that etch will open. Is it o.k. if the etch opens and we pass the dielectric strength test afterwards? The enclosure will be covered with cheesecloth and there is no way for flaming particles to get out. Thank you for your replies, Jerry ---------------------------------------- ------------------------------------------------- I believe that the construction would comply with the safety requirements, but what good is a unit that becomes inoperative and needs to be replaced whenever there is a lightning storm? Would you accept that in your TV set? Gabriel Roy Personal opinions only, of course, not those of Hughes Network Systems MD (18)
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