Lockout Tagout Security Management Specification

Lockout tagout security management specification


In order to strengthen the management of energy and material isolation, in the equipment and facilities inspection and maintenance, maintenance and disassembly and other operational activities, to prevent dangerous energy and material accidental release resulting in personal injury, to avoid the occurrence of accidents, this code is formulated.

2 scope of application

This code applies to the units of XX company (hereinafter referred to as the "company"), overseas project departments and operation areas (hereinafter referred to as the "units"), and contractors serving the company.

3 reference document

Q/SY 1421-2011 Lockout tagout management code

Q/SY 1240-2009 work permit management specification

Q/SY 1244-2009 temporary safety management code for electricity use

Hazardous energy

Electrical, mechanical, hydraulic, pneumatic, chemical, thermal or any other form of energy which, without control, may cause injury to persons or damage to property.


Valves, electrical switches, energy storage accessories, etc. are set in the appropriate position or with the aid of specific facilities to prevent the equipment from operating or dangerous energy and materials cannot be released.

Stored energy

The amount of energy that can persist after the device is isolated. Energy contained in springs, flywheels, pressure fluids or gases, capacitors, or weights.