RE: Number of connections per terminal - chapter and verse?

I usually reference EN60204, section 14.1.1 when the subject (idea#1 in your email) comes up. The connection of two or more conductors to one terminal is permitted only in those cases where the terminal is designed for that purpose... The second idea you brought up, I am not aware of that being

Dielectric Strength of Thermoplastics, Specification of

A fellow engineer has been evaluating thermoplastics for dielectric strength for use in his design. Vendors (of the plastics) specify the dielectric strength in one of two ways: 1) As Dielectric Strength -and/or- 2) Step Dielectric strength Typically both are given in units such as V/mil but the

RE: Diagnostic Requirements

Time to get into the nitty gritty details. Here is what I know: UL adopted IEC 1010-1 (including Amendment I), made a few changes/deviations, and calls it UL 3101-1. It was published in 1993. It is their attempt to harmonize with the European standard for laboratory equipment. In the old days we

RE: European Standards Bodies Overview

-- | From: Ed Janzen | | Can anyone suggest a document (official or unofficial) which provides an | overview of the European standard-making bodies and how they are | inter-related; i.e., a road map to European certification, if it exists. | Check out

RE: Diagnostic Requirements

| From: MartinJP | | What domestic and international product safety and EMC requirements | would laboratory equipment used for diagnostic applications fall | under? | == For domestic try UL3101-1 _Electrical Equipment for

Proposition 65

/p65plain.htm Here is a link to a dissenting opinion on the law. http://www.public-policy.org/~ncpa/studies/s137/s137b.html This link has some interesting (although I don't know how accurate) information regarding relative risks in the tables. Mark Werlwas Mark Werlwas Product Safety Engineer Lam

RE: Enclosure ratings IP vs. NEMA

I don't think that you can easily convert IP to NEMA codes. However, there is a nice little chart which converts NEMA to IP. You can locate it at http://www.ul.com/hazloc/ref/conversion.htm The standard which defines the NEMA codes is NEMA-250,1997. Mark Werlwas Product Safety Engineer

RE: SEMI E10

Standards: If you would like to purchase a standards volume or a set of SEMI Standards, please call SEMI Membership Services at 1.650.940.6904. Or, if you prefer, you may become an OnLine member, and download the standards (for a fee of course! typically $50 each). If you're interested in this