User contributions for Gerben49~enwiki
A user with 119 edits. Account created on 29 June 2005.
16 April 2014
- 06:4406:44, 16 April 2014 diff hist −161 Induction lamp →History: original link topanga did not exist anymore as of 2014-apr-16
15 April 2014
- 20:0320:03, 15 April 2014 diff hist +599 Induction lamp →History: hauksbee experiment added, ref Tesla patent added
14 January 2013
- 20:2120:21, 14 January 2013 diff hist +48 m Induction lamp →History: ref added for fusion UV systems
- 20:1720:17, 14 January 2013 diff hist +183 Induction lamp →History: Fusion UV systems added in history
2 August 2012
- 13:4913:49, 2 August 2012 diff hist +69 Thyratron No edit summary
- 13:4813:48, 2 August 2012 diff hist +188 Thyratron It is the electron multiplication effect that makes that the tubes have high current density.
- 12:2412:24, 2 August 2012 diff hist +14 Thyratron →Construction: header consistent with content
- 12:2312:23, 2 August 2012 diff hist +188 Thyratron →Construction: cold cathode drive added
- 09:2409:24, 2 August 2012 diff hist −10 Cold cathode →Details: a hermetically sealed device such as a gas discharge lamp is not influenced by humidity
- 09:0609:06, 2 August 2012 diff hist +341 Thyratron →Construction: ininization of the gas explaiened
21 May 2012
- 10:5910:59, 21 May 2012 diff hist +551 Induction lamp →History: topanga added
20 December 2011
- 11:5311:53, 20 December 2011 diff hist +214 Heat equation →Fundamental solutions: k explaained, beetr is to repalce all k in formula by α,
- 11:2111:21, 20 December 2011 diff hist +1,503 Talk:Heat equation →k should be the thermal diffusivity
1 December 2011
- 14:0214:02, 1 December 2011 diff hist −137 Ceramic metal-halide lamp →External links: link to Philips removed, page does not exist anymore
1 September 2011
- 07:3707:37, 1 September 2011 diff hist −142 Nickel–metal hydride battery ref 26 removed. does not link to any information about batteries
31 August 2011
- 14:0214:02, 31 August 2011 diff hist +109 Electrical equipment in hazardous areas →Type of protection: FNICO moved to category 'n
- 13:0813:08, 31 August 2011 diff hist −3 Electrical equipment in hazardous areas →Type of protection
- 13:0213:02, 31 August 2011 diff hist +240 Electrical equipment in hazardous areas →Type of protection: FISCO and FNICO added
- 12:3912:39, 31 August 2011 diff hist +73 Electrical equipment in hazardous areas →External links: link toegeveogd
- 12:2312:23, 31 August 2011 diff hist +3 Electrical equipment in hazardous areas →Type of protection
- 12:2112:21, 31 August 2011 diff hist −348 Electrical equipment in hazardous areas →Type of protection: EX heagon column dleted as it is repeating the information, and does not give any type dependent information excepted s. however ebven this differnece will disappear in near futurees
30 August 2011
- 20:1020:10, 30 August 2011 diff hist +155 Electrical equipment in hazardous areas →Equipment Protection Level (EPL)
- 17:5817:58, 30 August 2011 diff hist +119 Explosion →See also: Ez standards added
- 16:2116:21, 30 August 2011 diff hist +101 Explosion protection →See also: link to EX safety standards
- 16:1416:14, 30 August 2011 diff hist +944 Electrical equipment in hazardous areas →Gas groups: EPL added
- 15:0415:04, 30 August 2011 diff hist +39 Electrical equipment in hazardous areas →Type of protection: draft 60079-33 added
- 15:0015:00, 30 August 2011 diff hist −12 EX →Other: Ex excplosion prevention mod
- 14:5914:59, 30 August 2011 diff hist +133 EX →Other: Ex for explosion prevention
- 14:2914:29, 30 August 2011 diff hist +190 Electrical equipment in hazardous areas →Type of protection: IEC EN standards added
- 14:1714:17, 30 August 2011 diff hist +11 Electrical equipment in hazardous areas →Type of protection: q may be used for zone 1
5 March 2011
- 12:5012:50, 5 March 2011 diff hist +4 Metal-halide lamp →Arc tube
- 12:4812:48, 5 March 2011 diff hist +61 Ceramic metal-halide lamp No edit summary
- 11:3911:39, 5 March 2011 diff hist +111 Electrical ballast →Electronic ballasts: wireless control added
- 11:3211:32, 5 March 2011 diff hist +404 Electrical ballast →Electronic ballasts: HID lamp ballsts added, capacitor as current limiting element removed. This is to my knowledege not os harly ever except very low pwer lamps used in practice
16 February 2011
- 15:4015:40, 16 February 2011 diff hist +110 Comparative Tracking Index No edit summary
- 14:5814:58, 16 February 2011 diff hist +553 Comparative Tracking Index refernce to underwriters laboratory
18 May 2010
- 09:1809:18, 18 May 2010 diff hist −7 Wax thermostatic element →External links: link vernet correct once again
- 09:1609:16, 18 May 2010 diff hist +13 Wax thermostatic element →External links: link to vernet france corrected (did not work)
19 August 2009
- 11:0511:05, 19 August 2009 diff hist +63 Senvion ref 6 MW prototype
- 11:0111:01, 19 August 2009 diff hist +191 Senvion 6 MW operation added
11 August 2009
- 20:1120:11, 11 August 2009 diff hist +15 Ferrite (magnet) →Sources: nl link added
26 May 2009
- 11:4511:45, 26 May 2009 diff hist +36 Inductor →Inductor construction: ferrimagnetic core material added
19 May 2009
- 19:1819:18, 19 May 2009 diff hist −34 Permeation →Simple approximation: ignoring sorption and desorption dleted
8 May 2009
- 12:3312:33, 8 May 2009 diff hist +4 Permeation →Simple approximation
- 12:2912:29, 8 May 2009 diff hist 0 m Permeation →Simple approximation
- 12:2812:28, 8 May 2009 diff hist +1 m Permeation →Simple approximation
- 12:2712:27, 8 May 2009 diff hist −1 Permeation →Simple approximation: type eroor corr
- 12:2612:26, 8 May 2009 diff hist +751 Permeation →Permeation measurement: permeation formula added
- 11:3211:32, 8 May 2009 diff hist +158 Polycarbonate water vapor transmission added hyperlink Bar (unit)
4 May 2009
- 07:1507:15, 4 May 2009 diff hist +381 Polycarbonate gas permeation added
