T/CAEE 047-2026 Active Group standards

T/CAEE 047-2026 Technical Requirements for Modular Intensive Busway

Publish Date: 2026-04-15 Implement Date: 2026-04-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CAEE 047-2026

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Normal diagnostic instruments

ICS Name: Low-voltage switchgear and controllers

Publish Date: 2026-04-15

Implement Date: 2026-04-30

Scope

This document specifies the terms and definitions, conditions of use, models and naming, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, as well as installation, operation and maintenance guidelines for modular compact busbars (hereinafter referred to as "busbars"). This document applies to modular compact busbars with a rated voltage of not more than 1000V AC. 4. Conditions of Use Normal Use Conditions? 4.1.1 Ambient air temperature: -5°C to +40°C, with an average temperature not exceeding +35°C within 24 hours. 4.1.2 Altitude: not exceeding 2000m. 4.1.3 Atmospheric conditions: When the maximum temperature is +40°C, the relative humidity of the air shall not exceed 50%; at lower temperatures, higher relative humidity may be allowed, e.g., 90% at +20°C. It should also be considered that occasional moderate condensation may occur due to temperature changes, and anti-condensation measures should be taken. 4.1.4 Pollution level: not lower than Grade 3, in accordance with the provisions of GB/T 7251.1 Section 4.2.2. 4.1.5 Installation conditions: The busbars shall be installed in places without significant shaking, impact, or vibration. The installation category (overvoltage category) shall be Class III, in accordance with the provisions of GB/T 14048.1 Section 5.3.2. Special Use Conditions 4.2.1 Corrosive Environments When used in corrosive environments such as chemical plants and coastal areas, the enclosure shall be made of 316L stainless steel (with a zinc layer thickness of ≥150g/m2) or corrosion-resistant aluminum alloy (such as 6063-T6), and the connection parts of the conductive strips shall be treated with nickel plating (thickness ≥8μm) or silver plating (thickness ≥5μm). 4.2.2 High Temperature Environments When used in high-temperature locations such as metallurgy and glass production (with an ambient temperature of >40°C and ≤60°C), the insulating materials shall be selected fr

Development Information

Related Standards

GB 7251.2-1997 Replaced

GB 7251.2-1997 Low-voltage switchgear and control gear assemblies—Part 2:Particular requirements for busbar trunking systems(busways)

Publish Date: 1997-12-30

GB/T 11022-1999 Replaced

GB/T 11022-1999 Common specifications for high-voltage switchgear and control gear standards

Publish Date: 1999-10-10

GB/T 18858.1-2002 Replaced

GB/T 18858.1-2002 Low-voltage switchgear and control gear Controller-device interface(CDIs)—Part 1:General rules

Publish Date: 2002-10-08

GB/T 18858.3-2002 Replaced

GB/T 18858.3-2002 Low-voltage switchgear and control gear—Controller-Device interface(CDI)—Part 3:Device Net

Publish Date: 2002-10-08

GB/Z 18859-2002 Replaced

GB/Z 18859-2002 Enclosed low-voltage switchgear and controlgear Assemblies—Guide for testing under conditions of arcing due to internal fault

Publish Date: 2002-10-08

GB 14048.4-2003 Replaced

GB 14048.4-2003 Low-voltage switchgear and controlgear—Electromechanical contactors and motor-starters

Publish Date: 2003-09-10