<p class="MsoBodyText"><span lang="EN-GB">This document specifies procedures and conditions to enable the heat flux in electrical surface heating systems to be determined relative to the medium differential temperature for systems. The determination of thermal performance electrical surface heating systems and their conformity to this document is carried out by calculation in accordance with design documents and a model. This enables a uniform assessment and calculation surface heating systems.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The surface temperature and the temperature uniformity of the heated surface, nominal heat flux density between electrical heated layer and space are given as the result.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The ISO 11855 series is applicable to water based embedded surface heating and cooling systems in residential, commercial and industrial buildings</span><span class="MsoFootnoteReference"><span lang="EN-GB" style="font-size: 10.0pt; mso-bidi-font-size: 11.0pt;"><span style="mso-special-character: footnote;"><!-- [if !supportFootnotes]--><span lang="EN-GB" style="font-size: 10.0pt; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">[1]</span><!--[endif]--></span></span></span><span lang="EN-GB">. The methods apply to systems integrated into the wall, floor or ceiling construction without any open-air gaps. It does not apply to ceiling mounted panel systems with open air gaps which are not integrated into the building structure.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The ISO 11855 series also applies, as appropriate, to the use of fluids other than water as a heating or cooling medium. The ISO 11855 series is not applicable for testing of systems. The methods do not apply to heated or chilled ceiling panels or beams.</span></p>
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<p class="MsoFootnoteText"><span class="MsoFootnoteReference"><span lang="EN-GB"><span style="mso-special-character: footnote;"><!-- [if !supportFootnotes]--><span lang="EN-GB" style="font-size: 10.0pt; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">[1]</span><!--[endif]--></span></span></span><span lang="EN-GB"><span style="mso-spacerun: yes;"> </span>ISO 11855-7 can also be used for electrical heated embedded systems.</span></p>
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Registration number (WIID)
83817
Scope
<p class="MsoBodyText"><span lang="EN-GB">This document specifies procedures and conditions to enable the heat flux in electrical surface heating systems to be determined relative to the medium differential temperature for systems. The determination of thermal performance electrical surface heating systems and their conformity to this document is carried out by calculation in accordance with design documents and a model. This enables a uniform assessment and calculation surface heating systems.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The surface temperature and the temperature uniformity of the heated surface, nominal heat flux density between electrical heated layer and space are given as the result.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The ISO 11855 series is applicable to water based embedded surface heating and cooling systems in residential, commercial and industrial buildings</span><span class="MsoFootnoteReference"><span lang="EN-GB" style="font-size: 10.0pt; mso-bidi-font-size: 11.0pt;"><span style="mso-special-character: footnote;"><!-- [if !supportFootnotes]--><span lang="EN-GB" style="font-size: 10.0pt; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">[1]</span><!--[endif]--></span></span></span><span lang="EN-GB">. The methods apply to systems integrated into the wall, floor or ceiling construction without any open-air gaps. It does not apply to ceiling mounted panel systems with open air gaps which are not integrated into the building structure.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">The ISO 11855 series also applies, as appropriate, to the use of fluids other than water as a heating or cooling medium. The ISO 11855 series is not applicable for testing of systems. The methods do not apply to heated or chilled ceiling panels or beams.</span></p>
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<div id="ftn1" style="mso-element: footnote;">
<p class="MsoFootnoteText"><span class="MsoFootnoteReference"><span lang="EN-GB"><span style="mso-special-character: footnote;"><!-- [if !supportFootnotes]--><span lang="EN-GB" style="font-size: 10.0pt; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">[1]</span><!--[endif]--></span></span></span><span lang="EN-GB"><span style="mso-spacerun: yes;"> </span>ISO 11855-7 can also be used for electrical heated embedded systems.</span></p>
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