Laminated glass, electrical isolation measurement system having the same, method of manufacturing the same, and use of the same

A method for manufacturing a laminated glass, comprising:

• bonding first and second glass sheets with a ply of interlayer material therebetween;
• arranging a heating element at a surface of the second glass sheet adjacent the ply of interlayer material;
• spacing a circumference of the heating element from an edge of the second glass sheet by forming a circumferential region between the circumference and the edge of the second glass sheet where conductive material of the heating element has been at least partly removed;
• configuring a conductive ring formed of a conductive material in the circumferential region spaced from the circumference and spaced from the edge of the second glass sheet and electrically isolated from the heating element wherein the conductive material of the heating element is different from the conductive material of the conductive ring, and wherein the conductive ring is suitable for measuring electrical isolation between the heating element and the conductive ring by measuring resistance or leakage current using an electronic device electrically connected via cables to the heating element and to the conductive ring;
• and
• measuring electrical isolation between the heating element and the conductive ring;
• wherein the conductive ring is printed by silk-screen printing or inkjet printing or by spraying particles, or is a copper strip or a wire braid, embedded in the ply of interlayer material.

A laminated glass, comprising:

• first and second glass sheets and a ply of interlayer material therebetween;
• a heating element arranged on a surface of the second glass sheet adjacent the ply of interlayer material;
• a circumference of the heating element spaced from an edge of the second glass sheet forming a circumferential region between the circumference and the edge of the second glass sheet where conductive material of the heating element has been removed;
• and
• a conductive ring formed of a conductive material configured in the circumferential region spaced from the circumference and spaced from the edge of the second glass sheet and electrically isolated from the heating element wherein the conductive material of the heating element is different from the conductive material of the conductive ring, and wherein the conductive ring is suitable for measuring electrical isolation between the heating element and the conductive ring by measuring resistance or leakage current using an electronic device electrically connected via cables to the heating element and to the conductive ring;
• wherein the conductive ring is part of an electrical isolation measurement system configured to verify that all conductive material of the heating element outside the heating element has been removed;
• and
• wherein the conductive ring functions as a barrier to water penetration.