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Database: 189759 (19 Oct 2025)
HG/T 21509-1995 English PDF
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HG/T 21509-1995
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Universal Drawing of Cable Tunnel Laying in Chemical Companies (Figure)
HG/T 21509-1995
PDF similar to HG/T 21509-1995
Standard similar to HG/T 21509-1995
GB 50168
GB 50254
GB 50093
Basic data
Standard ID
HG/T 21509-1995 (HG/T21509-1995)
Description (Translated English)
Universal Drawing of Cable Tunnel Laying in Chemical Companies (Figure)
Sector / Industry
Chemical Industry Standard (Recommended)
Classification of Chinese Standard
P91
Classification of International Standard
91.140.50
Word Count Estimation
252,211
Date of Issue
1995-11-29
Date of Implementation
1995-12-01
Regulation (derived from)
Chemical-Construction-Letter [1995] No. 914
Summary
This standard applies to chemical companies in voltage 35 kV cables laid in the cable tunnel. Cable tunnel in light corrosion environments, but not for potentially explosive environments.