What are the top ten bans on power safety production in China Southern Power Grid?

1. Strictly implement the "two votes" system. It is strictly forbidden to work without a ticket, operate without a ticket and change the work content of "two tickets" without authorization; It is strictly forbidden to carry out work without setting up a guardian or guardianship in place. ?

second, strictly implement the technical measures of power failure, electricity inspection, installation of grounding wire, hanging signs and installation of barrier. It is strictly forbidden to work on power-off equipment that is inexperienced and has no reliable grounding; It is forbidden to stop sending electricity at an appointment; It is strictly prohibited to change the safety protection measures and expand the scope of work without authorization. ?

third, strictly implement the "four measures" and the work requirements of hazard identification and risk assessment. It is strictly prohibited to carry out work without work plan, work instruction or standard procedure work card. ?

iv. strictly implement the relevant provisions on safety protection against falling from high altitude and personal safety protection articles. It is forbidden to lose protection during working at heights; It is forbidden to enter the production and operation areas without proper dressing and wearing safety protection articles according to the regulations. ?

five, strictly implement the provisions of live working. It is strictly prohibited to carry out live work without a work plan or using an unapproved work plan; It is forbidden to use unqualified instruments to carry out live working; It is forbidden to stop or resume reclosing at an appointment. ?

VI. Strictly implement the regulations on induced voltage protection. It is forbidden to work on equipment with induction electricity without reliable grounding. ?

VII. Strictly implement the work regulations of live-line crossing (crossing) and stringing. It is strictly forbidden to cross (wear) the charged work without crossing frame and safety and reliable measures. ?

VIII. Strictly implement the regulations on working on SF6 electrical equipment. It is strictly forbidden to enter the SF6 distribution room without ventilation in advance and carry out emergency repair and routine maintenance of SF6 equipment without anti-virus measures. ?

IX. Strictly implement the regulations on fire prevention and explosion prevention. It is strictly prohibited to carry out work that violates the management requirements of fire fighting, blasting and high-pressure gas cylinders. Ten, strictly implement the safety regulations. It is forbidden to enter the production and operation areas after drinking; Drunk driving and driving without a license are strictly prohibited. Extended information

The first line of defense: high-speed and accurate removal of the relay protection of the faulty components and protection against abnormal operation of the protected equipment, without loss of load and rapid isolation of faults;

the second line of defense: the safety automatic device to ensure the safe operation of the power grid allows a small amount of load to be lost to avoid overload of components and instability of the power grid;

the third line of defense: out-of-step disconnection and frequency and voltage control. Take all necessary measures to avoid power grid collapse.

to put it simply, the three lines of defense are: relay protection, load shedding stability control device of overload cutter, and low-frequency and low-voltage out-of-step disconnection device.

The N-1 criterion is adopted for the power supply safety of urban distribution network, that is,

(1) When any primary incoming line or a set of step-down transformers are lost in high-voltage substation, the power supply to the lower-level distribution network must be guaranteed;

(2) When an overhead line, a cable or a group of step-down transformers in a substation fails and stops;

a. under normal circumstances, there will be no power outage except the fault section, and there will be no over-voltage and equipment overload that is not allowed;

b。 In the case of planned outage and failure outage, partial power outage is allowed, but power supply should be restored within the specified time;

(3) When a transformer or power grid fails in the low-voltage power grid, partial power outage is allowed, and the intact section is switched to the adjacent power grid at the specified time as soon as possible to restore power supply.

Reference: Baidu Encyclopedia-Central Enterprise Safety Production Ban