Hello. Sign In   |    Help & Support   |    Contact Us   |   
Standards Store
SEARCH:
and/or  
IEC/TR 60890 (Complete Document)
Revision / Edition: 1.0 Chg: A1 Date: February 1995
Superseded By: IEC TR 60890
A METHOD OF TEMPERATURE-RISE ASSESSMENT BY EXTRAPOLATION FOR PARTIALLY TYPE-TESTED ASSEMBLIES (PTTA) OF LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR
Additional Comments: BILINGUAL * W/D S/S BY IEC TR 60890
PDF :
$206.00 USD
In Stock
Print :
$227.00 USD
In Stock
IHS Standards Expert
The following method is applicable to enclosed PTTA or partitioned sections of PTTA without forced ventilation.

Notes 1. - The influence of the materials and wall thicknesses usually used for enclosures are negligible on the steady state temperatures. The method is therefore applicable to enclosures made of sheet steel, sheet aluminium, cast iron, insulating material and the like.

2. - For open-type and dead-front FTTA, no temperature-rise assessment is needed if it is obvious that no excessive air temperatures are likely to arise.

Prices subject to change without notice.
Help & Support
Home
Help & Support
Office Locations
Abbreviations Definitions
Products
Browse Publishers & Products
New Releases
Top Sellers
Tools & Services
Research Center
Alerts & Content Tools
Deposit Accounts
Standing Orders
Free Newsletters
Solutions
Individual Standards
Custom Online Collections
Online Corporate Solutions
 
Visit www.ihs.com
About IHS  |   Contact Us  |   Careers  |   Investors  |   Site Map  |   Privacy Policy  |   Terms of Use (c) 2014 IHS.