Tag Archives: November

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Electrical heat tracing: international harmonization-now and in the future

 

Electrical heat tracing: international harmonization-now and in the future

C. Sandberg

Tyco Thermal Controls

N.R. Rafferty – M. Kleinehanding – J.J. Hernandez

E.I. DuPont de Nemours & Company, Inc 

 

Abstract:  In the past, electrical heat tracing has been thought of as a minor addition to plant utilities. Today, it is recognized as a critical subsystem to be monitored and controlled. A marriage between process, mechanical, and electrical engineers must take place to ensure that optimum economic results are produced. The Internet, expert systems, and falling costs of instrumentation will all contribute to more reliable control systems and improved monitoring systems. There is a harmonization between Europe and North America that should facilitate design and installation using common components. The future holds many opportunities to optimize the design.

CLICK HERE to order complete paper

 


Heat Tracing Installation

Industrial electroheating and electromagnetic processing

Pipe Heating

Heat Tracing

Mechanical Clock from 1895 Still Ticking

Located in the Mechanical Engineering Building this clock has been keeping time for over 120 years and its ticking can be heard throughout the building. The clock was built by the Seth Thomas Clock Company and was installed in 1904.

The clock’s mechanism is powered by weights that are wound up manually twice a week. It has a pendulum that swings back and forth, keeping time with remarkable accuracy. The clock is also equipped with a chime that rings every quarter hour, as well as a striking mechanism that sounds the hours.

Over the years, the clock has undergone several renovations and restorations to keep it in good working order. In 2009, the clock was fitted with an electric motor to assist in winding the weights, but it still operates primarily through mechanical means.

Original Heavilon Hall clock installed in Gatewood Wing

Date & Time: Representations For Information Interchange

“A Philosopher Lecturing on the Orrery” | Joseph Wright (1766)

Most nations follow the day/month/year format (07/01/19 for January 7, 2019, for example), but the United States adheres to its own format of month/day/year (1/7/19 or 1/7/2019).   The potential for misinterpreting dates across national boundaries is the logic for ISO 8601:2019 – Data Elements And Interchange Formats – Information Interchange – Representation Of Dates And Times, the ISO format for dates represents year, month, and day from the largest unit to the smallest, most specific unit of time.  The ISO date format is the date format used in SQL and is the default date setting on many computers.

ISO 8601-1:2019 Date And Time – Representations For Information Interchange – Part 1: Basic Rules

CLICK ON IMAGE FOR INTERACTIVE MAP


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Time and Date

How the ISO Date Format Tells Today

ISO Date Format

Date and time formats used in HTML

Making Greenwich the centre of the world

Language Proficiency

“The first and most distinguishing feature of civil society is the use of language.”

Adam Ferguson’s “An Essay on the History of Civil Society”

“Minerva Preserving to the World the Latin Grammar”

Standard Practice for Assessing Language Proficiency

Committee F43 on Language Services and Products

One of the easiest ways to persuade someone who disagrees with you is to change the subject without them knowing about it.  Application of this method is found in the technical literature that informs safety and sustainability regulations at all levels of government.  Change definitions; change the subject; outcome changed — hence our interest in spoken, written and computer languages.

Almost all technical standards begin with a list of definitions which, among domain experts, are frequently hard won.

From the project prospectus:

Purpose—This practice describes best practices for the development and use of language tests in the modalities of speaking, listening, reading, and writing for assessing ability in accordance with the Interagency Language Roundtable (ILR)2 scale. This practice focuses on testing language proficiency in use of language for communicative purposes.

Limitations—This practice is not intended to address testing and test development in the following specialized areas: Translation, Interpretation, Audio Translation, Transcription, other job-specific language performance tests, or Diagnostic Assessment.   Tests developed under this practice should not be used to address any of the above excluded purposes (for example, diagnostics).

This title was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade Committee.

As of the date of this post we find no changes in the titles developed by this committee; nor do we see any notice of meetings; likely owed to the circumstances of the pandemic. Last Update: April 2020

Language lies at the foundation of all standards-setting so we maintain this title on the standing agenda of several of our daily colloquia.  Its an “evergreen” topic that we can explore every day in every title in every catalog   Feel free to click in to any of our daily colloquia; login credentials at the upper right of our home page.

A Translator’s Journey


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Standards for the Modern Language Industry

American Council on the Teaching of Foreign Languages

Michigan State University: A Rhetorical History of the United States

CORRECTION: In the clip above, at the 5:11 mark, the caption should read: “He mobilized the English language”

 

„Jede Sprache ist eine schlechte Übersetzung“ – Franz Kafka

Michigan 34 | Washington 13

Washington Post: The Year of Magical Thinking

How To Build A Football Stadium

Industrial electroheating and electromagnetic processing

The global standards for heat tracing systems are developed by IEC Technical Committee 27.  The scope of work for this committee is reproduced below:

Standardization in the field of industrial equipment and installations intended for electroheating, electromagnetic processing of materials and electroheat based treatment technologies Note: The scope of interest covers industrial installations with the use of the following equipment: – equipment for direct and indirect resistance heating; – equipment for electric resistance trace heating; – equipment for induction heating; – equipment using the effect of EM forces on materials; – equipment for arc heating, including submerged arc heating; – equipment for electroslag remelting; – equipment for plasma heating; – equipment for microwave heating; – equipment for dielectric heating; – equipment for electron beam heating; – equipment for laser heating; – equipment for infrared radiation heating. The list presents typical examples of equipment and its applications and is not exhaustive.

CLICK HERE for the link to the TC 27 Strategic Business Plan

Titles in this committee’s bibliography appears to be stable.   As with all IEC titles, they are relatively narrow in scope compared with the titles promulgated by most US standards developing organizations.  Our interest lies primarily in the application of this technology within and around education community buildings.

While heat tracing generally goes un-noticed it is an essential part of cold weather safety.  It is wise to keep pace with its evolution with innovation in materials and controls with the lead.

We maintain this committee’s work on the standing agenda of our seasonal Snow & Ice colloquia; along with US standards developed by UL, IEEE, NEMA, NFPA, ICC, ASHRAE and a few others.  We also collaborate with the IEEE Education & Healthcare Facilities Committee on this topic.  See our CALENDAR for the next online meeting; open to everyone.

 

Issue [18-332]

Category: Electrical

Colleagues: Mike Anthony, Lorne Clark, Jim Harvey

 

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