Overview

IEC TS 62735-1:2015 is a Technical Specification developed by the International Electrotechnical Commission (IEC) that defines requirements and tests for direct current (DC) plugs and socket-outlets intended for information and communication technology (ICT) equipment. The specification focuses on the 2.6 kW DC plug and socket-outlet system designed for class I equipment, with a voltage range from 294 V to 400 V DC. Its primary application is in data centres and telecom central offices, where safe and standardized DC power distribution is critical for powering ICT equipment.

Key Topics

Scope and Applicability:
- Applies to plugs and fixed socket-outlets for class I ICT equipment in data centres and telecom central offices.
- Suitable for systems with a rated power of 2.6 kW and a rated voltage between 294 V and 400 V DC.
- Covers plugs and socket-outlets incorporated in cord sets and fixed to racks or walls, as well as those used as a component in assemblies like power distribution units (PDUs).
- Excludes portable socket-outlets, industrial couplers, electric vehicle connectors, household plugs, and extra-low voltage fittings.
Design Requirements:
- Two active contacts plus an earthing contact for safety and reliability.
- Intended for ordinary users in controlled data centre environments.
- Suited for use at temperatures not normally exceeding 40°C.
Electrical Requirements:
- Maximum plug/socket current: 6.5 A at 400 V DC, 8.8 A at 294 V DC, and up to 10 A at 260 V DC for short periods.
- Accessories do not require routine maintenance.
Mounting and Installation:
- Focus on fixtures intended for installation on walls, racks, or as built-in assemblies.
- Addresses essential requirements for surface-mounting boxes as they pertain to socket-outlet tests.
- Not intended for applications where ambient temperature consistently exceeds 35°C.
Safety Provisions:
- Ensures basic, overcurrent, fault, and additional protection are implemented in the connected circuits.
- Inclusion of pilot lights is allowed if they meet applicable standards.

Applications

IEC TS 62735-1:2015 is especially relevant for environments requiring reliable, standardized DC power distribution, such as:

Data Centres:
- Streamlines DC power delivery to servers and networking equipment.
- Supports high-density, energy-efficient data centre designs by using standard DC plugs and socket-outlets.
Telecom Central Offices:
- Facilitates interoperable power connections for telecom hardware.
- Helps future-proof installations with defined safety and compatibility requirements.
Rack and Wall-Mounted Assemblies:
- Standardizes components in power distribution units, cord sets, and other fixed installations.

Using standardized DC plugs and socket-outlets enhances equipment interoperability, simplifies deployment, supports modular infrastructure growth, and promotes safety and reliability in mission-critical ICT applications.

Related Standards

Implementing IEC TS 62735-1:2015 often involves consideration of several other IEC standards for comprehensive compliance and system safety:

IEC 60950: Safety of information technology equipment, referenced for product compatibility.
IEC 60050-151: Electrotechnical vocabulary for consistent terminology.
IEC 60529: Degrees of protection (IP code) for enclosures.
IEC 60670: General requirements for mounting boxes.
IEC 61032: Protection by enclosures and test probes.
IEC 61210: Flat quick-connect terminations for copper conductors.
IEC 60227/60245: Cables for rated voltages up to and including 450/750 V.

IEC TS 62735-1 is part of a broader standardization effort for DC power infrastructure, helping drive efficient, safe, and scalable DC power adoption in ICT facilities worldwide.

Overview

Key Topics

Scope and Applicability:
- Applies to plugs and fixed socket-outlets for class I ICT equipment in data centres and telecom central offices.
- Suitable for systems with a rated power of 2.6 kW and a rated voltage between 294 V and 400 V DC.
- Covers plugs and socket-outlets incorporated in cord sets and fixed to racks or walls, as well as those used as a component in assemblies like power distribution units (PDUs).
- Excludes portable socket-outlets, industrial couplers, electric vehicle connectors, household plugs, and extra-low voltage fittings.
Design Requirements:
- Two active contacts plus an earthing contact for safety and reliability.
- Intended for ordinary users in controlled data centre environments.
- Suited for use at temperatures not normally exceeding 40°C.
Electrical Requirements:
- Maximum plug/socket current: 6.5 A at 400 V DC, 8.8 A at 294 V DC, and up to 10 A at 260 V DC for short periods.
- Accessories do not require routine maintenance.
Mounting and Installation:
- Focus on fixtures intended for installation on walls, racks, or as built-in assemblies.
- Addresses essential requirements for surface-mounting boxes as they pertain to socket-outlet tests.
- Not intended for applications where ambient temperature consistently exceeds 35°C.
Safety Provisions:
- Ensures basic, overcurrent, fault, and additional protection are implemented in the connected circuits.
- Inclusion of pilot lights is allowed if they meet applicable standards.

Applications

IEC TS 62735-1:2015 is especially relevant for environments requiring reliable, standardized DC power distribution, such as:

Data Centres:
- Streamlines DC power delivery to servers and networking equipment.
- Supports high-density, energy-efficient data centre designs by using standard DC plugs and socket-outlets.
Telecom Central Offices:
- Facilitates interoperable power connections for telecom hardware.
- Helps future-proof installations with defined safety and compatibility requirements.
Rack and Wall-Mounted Assemblies:
- Standardizes components in power distribution units, cord sets, and other fixed installations.

Related Standards

Implementing IEC TS 62735-1:2015 often involves consideration of several other IEC standards for comprehensive compliance and system safety:

IEC 60950: Safety of information technology equipment, referenced for product compatibility.
IEC 60050-151: Electrotechnical vocabulary for consistent terminology.
IEC 60529: Degrees of protection (IP code) for enclosures.
IEC 60670: General requirements for mounting boxes.
IEC 61032: Protection by enclosures and test probes.
IEC 61210: Flat quick-connect terminations for copper conductors.
IEC 60227/60245: Cables for rated voltages up to and including 450/750 V.

IEC TS 62735-1 is part of a broader standardization effort for DC power infrastructure, helping drive efficient, safe, and scalable DC power adoption in ICT facilities worldwide.

IEC TS 62735-1:2015 PDF

Технические детали

Abstract

Overview

Key Topics

Applications

Related Standards

Похожие стандарты

Abstract

Overview

Key Topics

Applications

Related Standards

Похожие стандарты

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