Comparison: IEC vs BS 7671 vs Egyptian Electrical Code
If you are an engineer, foreign investor, or property owner in Egypt familiar with European or international electrical specifications, you will encounter confusing differences. This guide precisely clarifies what IEC is, what BS 7671 is, where the Egyptian code sits between them, and which is the law applied in Egypt.
By the Ases Kahraba team — Last updated: February 2026
Quick Answer
Comprehensive comparison of the international IEC standard, UK BS 7671, and the Egyptian Electrical Code — similarities and differences in earthing, wire colours, RCD requirements, and which applies in Egypt.
Detailed Comparison: IEC vs BS 7671 vs Egyptian Code
- What is IEC? — The International Electrotechnical Commission (IEC) issues international standards for electricity and electronics. IEC 60364 is the global reference for electrical installations in buildings, and most national codes worldwide — including the Egyptian code — are based on it.
- What is BS 7671? — The British Wiring Regulations (BS 7671 / IET Wiring Regulations) is the UK code, built on IEC 60364 but with British modifications. It is used in the UK and some Commonwealth nations, and has no legal standing in Egypt.
- The Egyptian code and its relation to IEC — The Egyptian Electrical Code is inspired by IEC 60364 with specific adaptations for Egypt's 220/380 V, 50 Hz network. The Egyptian code is the sole legal reference applied in Egypt.
- Earthing system differences — BS 7671 prefers the TN-C-S system (PEN conductor). The Egyptian code prefers the TT system (independent local earthing) in residential buildings — safer given Egypt's grid quality and inconsistent network earthing in many areas.
- Wire colours — Modern BS 7671: brown (live), blue (neutral), green/yellow (earth). Egyptian code historically: red/black (live), blue/white (neutral), green/yellow (earth). Harmonisation is ongoing in Egypt with a trend toward IEC colours.
- RCD requirements — BS 7671 mandates RCDs on all general power outlets (13A) and most lighting circuits. The Egyptian code mandates 30 mA RCDs in wet areas only (bathroom, kitchen) as a minimum, with a recommendation to extend coverage.
- Guidance for foreign investors and property owners — If you are familiar with BS 7671 or other European specifications, remember that the Egyptian code is the law applied in Egypt. Compliance of your installations with the Egyptian code protects your investment and facilitates insurance and future sale.
Frequently Asked Questions
Is BS 7671 or CE accepted as a substitute for the Egyptian code in Egypt?
No. The Egyptian Electrical Code is the sole legal reference in Egypt. BS 7671 and CE certificates are accepted as technical references but do not replace compliance with the Egyptian code in local installations. The local engineer determines compatibility.
Does the Egyptian code fully match IEC 60364?
Not fully. The Egyptian code is inspired by IEC 60364 but contains modifications reflecting Egyptian grid characteristics, climate, and local practices. A licensed Egyptian engineer is the authority on interpreting differences and applying the local code.
Why is the TT earthing system more common in Egypt than TN-S?
TT relies on an independent earth for each building rather than depending on network earthing. This provides better protection in the Egyptian environment where network earthing may be unreliable or inconsistent, especially in older and rural areas.
Are wire colours different in Egypt from Europe?
Yes, historically Egypt used different colours from the modern European standard. Modern cables produced in Egypt trend toward IEC colours (brown, blue, green/yellow). When working in an older building, verify the actual wire colours and do not assume.
Does a British investor in Egypt need an Egyptian engineer to review installations?
Yes, strongly. Even if the British engineer is proficient in BS 7671, installations in Egypt must be reviewed by a locally licensed electrical engineer and Egyptian Engineers Syndicate member to ensure compliance with the local code and obtain the required official signatures.