T/SDJSXH 01-2022 Active Group standards

T/SDJSXH 01-2022 The power distribution box at the construction site

Publish Date: 2022-01-07 Implement Date: 2022-02-10 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/SDJSXH 01-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Civil Engineering Comprehensive

Publish Date: 2022-01-07

Implement Date: 2022-02-10

Pages: 62 pages

Scope

Scope: This document specifies the designation, product classification, marking, function, technical parameters, usage conditions, structural requirements, test methods, inspection rules, nameplates, and documentation for distribution boxes used in construction sites. This document applies to general industrial and civil construction sites: - Complete sets of equipment with a rated voltage of no more than 1000 V AC or 1500 V DC (for construction sites); - Distribution boxes (safety transformers) with a nominal primary voltage and nominal secondary voltage within the specified limits; - New, renovated, or expanded general industrial and civil construction projects, or any similar workplaces with power supply and distribution facilities of 10 kV or lower. This document does not apply to professional construction projects such as underwater, underground, or mining environments. Main technical content: 8. Structural requirements 8.1 The box body is generally composed of a rainproof cap, side panels, front and rear external doors, connecting door frames, internal protective isolation doors, lintel, instrumentation fixing panels, electrical installation panels, box body bottom plates, hinges, door locks, and brackets. The box body shall be made of cold-rolled steel or galvanized steel. The steel thickness of the main distribution boxes, distribution boxes, and some switch boxes (K/J, K/DJ, K/SG, K/DL, K/M2, K/M4) shall not be less than 1.5 mm, and the steel thickness of switch boxes shall not be less than 1.2 mm. For distribution boxes used in highly corrosive, salt spray, oil mist, or mold environments, 304 stainless steel plates should be used, and brackets, fasteners, and hanging rings should have sufficient corrosion resistance. Main distribution boxes and distribution boxes with a rating of 400A or higher should be designed as vertical boxes with feet not less than 170 mm in height. Distribution boxes and switch boxes with a rating of 400A or lower should be desig