dielectric

A dielectric is a material used as an insulator in an electrical system or component.

References - dielectric

See the following for additional dielectric information:

Electrical Wiring Residential Delmar Cengage Learning; 16 edition, December 2007, Ray Mullin, ISBN 1418050954
Modern Residential Wiring: Based on the 2005 NEC Goodheart-Wilcox Publisher, April 2006, Harvey Holzman, ISBN 1590704436
National Electrical Code 2008 (National Fire Protection Association National Electrical Code) National Fire Protection Association; 1 edition, September 2007, NFPA, ISBN 877657904
Electrical Safety Workbook Fermilab, December 2009, Editorial Staff
Electrical Work on Residential Property - What you should know before work begins Washington State Department of Labor and Industries, December 2009, Editorial Staff