Chapter IV
ELECTRICAL SAFETY SIGNS
Article 14. Classification of electrical safety signs
1. Electrical safety signs comprise prohibition signs, warning signs and instructional signs as shown in the following table:
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No.
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Type and content
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Picture
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Specification
(Picture size and font size as per Appendix II of this Circular)
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1
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Prohibition signs
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a
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"Cấm trèo!” (“Do not climb!”) “Điện áp cao nguy hiểm chết người” (“Fatal high voltage”)
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Picture 1a, 1b
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Bright red edge and lightning bolt, white background, black font
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b
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“Cấm vào!” (“Do not enter!”) “Điện áp cao nguy hiểm chết người” (“Fatal high voltage”)
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Picture 2
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c
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“Cấm lại gần!” (“Do not approach!”) “Có điện nguy hiểm chết người” (“Fatal electricity”)
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Picture 3
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d
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“Cấm đóng điện!” (“Do not turn on!”) "Có người đang làm việc” (“People at work”)
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Picture 4
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Bright red edge, white background, black font
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2
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Warning signs
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a
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“Dừng lại!" (“Stop!”) “Có điện nguy hiểm chết người” (“Fatal electricity”)
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Picture 5
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Bright red edge and lightning bolt, white background, black font
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b
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"Cáp điện lực” (“Electrical cable”)
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Picture 6
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Violet or black edge, font and arrow, 1 ¸ 2 mm; white background
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3
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Instructional signs
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a
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“Làm việc tại đây” (“Work here”)
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Picture 7
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Green outer background, white inner background, black font
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b
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“Vào hướng này” (“Enter here”)
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Picture 8
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c
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“Đã nối đất” (“Ground wired”)
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Picture 9
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Black edge and font, yellow background
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2. Apart from electrical safety signs as defined in Section 1 of this Article, entities can set up other signs with different contents for internal use and for various tasks.
Article 15. Disposition of electrical safety signs
1. The sign “CẤM TRÈO!” (“DO NOT CLIMB!”) must be placed at high-voltage overhead transmission lines. The sign “ĐIỆN ÁP CAO NGUY HIỂM CHẾT NGƯỜI” (“FATAL HIGH VOLTAGE”) must be placed visibly in height of 2 to 2.5 meters above ground level at every pylon (Picture 1a or 1b, Appendix II of this Circular).
2. The sign “CÁP ĐIỆN LỰC” (“ELECTRICAL CABLE”) must be placed on the ground or the landmark at the center of the trench of underground electrical cable, which does not share space with other pipelines or cables. Signs must be placed at every turning point. The distance between two continuous signs must be at least 30 meters (Picture 6, Appendix II of this Circular).
3. The sign “CẤM VÀO” (“DO NOT ENTER”) must be placed at substations with wall barriers. The sign “ĐIỆN ÁP CAO NGUY HIỂM CHẾT NGƯỜI” (“FATAL HIGH VOLTAGE”) must be placed on substations’ doors or entrance gates (Picture 2, Appendix II of this Circular).
4. The disposition of signs for pole-mounted transformers shall conform to the regulation on high-voltage overhead transmission lines.
5. The sign “CẤM LẠI GẦN!” (“DO NOT APPROACH!”) must be placed at kiosk substations, outdoor circuit breaker kiosks, power boxes (feeder pillars). The sign “CÓ ĐIỆN NGUY HIỂM CHẾT NGƯỜI” (“FATAL ELECTRICITY”) must be fitted visibly onto the cover. (Picture 3, Appendix II of this Circular).
6. The sign “CẤM ĐÓNG ĐIỆN!” ("DO NOT TURN ON!”) must be placed at control devices, motion drive devices and circuit breakers during power cut for performance of works.
7. The sign “DỪNG LẠI! CÓ ĐIỆN NGUY HIỂM CHẾT NGƯỜI” (“STOP! FATAL ELECTRICITY”) must be placed visibly on barriers (Picture 5, Appendix II of this Circular). 8. At marked places of work: the sign “LÀM VIỆC TẠI ĐÂY” ("WORK HERE”) (Picture 7, Appendix II of this Circular) must be placed at work areas. The sign “VÀO HƯỚNG NÀY” (“ENTER HERE") (Picture 8, Appendix II of this Circular) and the sign “ĐÃ NỐI ĐẤT” (“GROUND WIRED”) (Picture 9, Appendix II of this Circular) must be placed at work areas’ entrance.
9. The signs “CẤM TRÈO! ĐIỆN ÁP CAO NGUY HIỂM CHẾT NGƯỜI” (“DO NOT CLIMB! FATAL HIGH VOLTAGE”), “CẤM VÀO! ĐIỆN ÁP CAO NGUY HIỂM CHẾT NGƯỜI” (“DO NOT ENTER! FATAL HIGH VOLTAGE”), “CẤM LẠI GẦN! CÓ ĐIỆN NGUY HIỂM CHẾT NGƯỜI” (“DO NOT APPROACH! FATAL ELECTRICITY”) according to Article 14 of this Circular may be drawn with paint on regulated positions or on separate signposts.
Article 16. Responsibilities for disposition of electrical safety signs
Responsibilities for disposition of signs as stated in Article 15 of this Circular belong to:
1. Main investor (for newly built facilities) or operation management organization (for facilities in use) as per Section 1, 2, 3, 4, 5, 7, Article 15 of this Circular.
2. Work supervisors as per Section 6, Article 15 of this Circular.
3. Direct leader of the division performing works or the individual permitting such division’s works as per Section 8, Article 15 of this Circular.
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Thông tư 31/2014/TT-BCT (Bản Word)
Thông tư 31/2014/TT-BCT (Bản Pdf)