IEC 60364 for Data Center Electrical Installations
IEC 60364 is the international reference for low-voltage electrical installations. Many national codes are based on it, so its structure is worth knowing even when a local code governs.
What the series covers
| Area | Topic |
|---|---|
| Fundamental principles | Scope, definitions and general safety principles |
| Protection for safety | Shock, thermal effects, overcurrent and overvoltage |
| Selection and erection | Wiring systems, current ratings, switchgear and earthing |
| Verification | Inspection and testing before and during service |
| Special installations | Requirements for particular locations and uses |
Where it enters a data center design
- Cable sizing, derating and voltage drop. See cable sizing basics.
- Earthing system types and protective measures. See earthing design.
- Protection against overcurrent and surge.
- Inspection and testing before handover. See the commissioning checklist.
Local codes come first
Where a national code or regulation applies, such as those used in India (see the earthing code in IS 3043 summary), it governs. Use IEC 60364 as the common framework and the local code for the requirements that differ.
Written by the Vision Matrix Institute editorial team. Worked examples use stated, illustrative assumptions; check them against your project data, the applicable standards and manufacturer datasheets before use.
Frequently Asked Questions
What is IEC 60364?
A series of international standards for electrical installations of buildings, covering protection for safety, selection and erection of equipment, verification and special installations.
Does it apply to data centers?
Yes, for the low-voltage electrical installation, alongside data center specific requirements and the project specification.
How does it relate to national codes?
Many national wiring codes are based on or aligned with IEC 60364, but the national code governs where it differs. Confirm which applies.
Does it cover cable current ratings?
The series includes parts on the selection and erection of wiring systems, including current-carrying capacity. Use the part and edition cited in the project requirements.
Want to learn this properly?
This topic is covered in depth in our Electrical Design – Data Center Specialist program.
Ask us on WhatsAppLearn to do this on a full project in the Electrical Design – Data Center Specialist program, or read the data center design guide.