Websites which I find useful:
Electrical Theory & Circuits
- All About Circuits – a great resource for basic electrical & electronic knowledge.
- Play Hookey – for those who want to go a little deeper into electronics.
- Square D Wiring Diagram Book (pdf) – a basic motor control parts and wiring reference.
- Sinking and Sourcing (pdf) – explained by Automation Direct.
Codes & Standards
- NFPA – National Fire Protection Association – NFPA 70 (NEC)
- NEIS Code Question of the Day – start your day with a question about the NEC. Emailed daily at 5:oo a.m.
- UL – Underwriters Laboratories. Includes the white book, online product directory, newsletters, etc.
- NEMA – The Association of Electrical and Medical Imaging Equipment Manufacturers
- IEC – International Electrotechnical Commission
Forums
- Electrician Talk – a great collection of forum discussions by seasoned electricians.
- Mike Holt’s forums – mostly NEC-related discussions.
- PLCTalk.net – Forums containing PLC discussions.
Trade Magazines
- EC&M – Electrical Construction & Maintenance – great articles for any electrician (EC&M’s parent company offers an array of online publications for various electrical specialties).
- Electrical Contractor
- IAEI – International Association of Electrical Inspectors.
Certifications
- ISA – International Society of Automation
- CCST – Certified Control Systems Technician
- CST Associate Program
- NICET – National Institute for Certification in Engineering Technologies
- IAEI’s – International Association of Electrical Inspector Certifications
Other
- Lifehacker – mostly useful tips for life
