Sorry! No search in Internet Explorer.
The URL (web address) shown by your browser starts with https because you visit this site using a secured connection. Note that the URI reference (identifier) of LOCATION NOMINAL DIAMETER STANDARD SPECIALIZATION (dexpi) to be used in DEXPI-compliant Proteus files starts with http - as shown below:

http://sandbox.dexpi.org/rdl/LocationNominalDiameterStandardSpecialization

LOCATION NOMINAL DIAMETER STANDARD SPECIALIZATION (dexpi)

RDF Properties

"LOCATION NOMINAL DIAMETER STANDARD SPECIALIZATION"
"LOCATION NOMINAL DIAMETER STANDARD SPECIALIZATION"

Namespaces

pca
http://data.posccaesar.org/rdl/
dexpi
http://sandbox.dexpi.org/rdl/
rdfs
http://www.w3.org/2000/01/rdf-schema#