Electrical insulation instrument and safety protection instrument are divided into three parts according to their functions and functions:
1, basic insulation safety instruments;
Refers to the insulation strength of safety instruments that can withstand working voltage and directly operate high-voltage electrical equipment, and instruments that contact or may contact charged bodies. Such as capacitive electroscope, insulating rod, insulating partition, insulating cover, nuclear phase detector, portable short-circuit grounding wire, personal safety grounding wire, etc.
2, auxiliary insulation safety equipment;
It means that the insulation strength can't withstand the working voltage, and it is only used to strengthen the safety function of basic insulation safety instruments, so as to prevent the operator from being hurt by contact voltage, step voltage and leakage current arc. Safety tools belonging to this category include: insulating gloves, insulating boots (shoes), insulating rubber pads, insulating tables, insulating supplies, etc.
3, general protective safety equipment (general protective equipment);
Refers to tools to protect workers from accidents. Such as safety helmet, safety belt, insulating ladder, safety rope, ankle buckle, anti-static clothing (electrostatic induction protective clothing), anti-arc clothing, conductive shoes (anti-static shoes), safety self-locking device, automatic speed controller, protective glasses, filter gas mask, positive pressure fire-fighting air respirator, SF6 gas leak detector, oxygen tester, acid-proof gloves, acid-proof clothing, acid-proof boots, etc.
(3), safety fence (net) and signs
Such as safety nets, safety fences, equipment signs and safety signs.
Safety signs are divided into six parts according to their functions:
1. Prohibition sign: refers to a graphic sign that prohibits or stops people from doing unsafe behaviors in advance, and is composed of red. If it is forbidden to shut down, someone is working! No entry without permission, no climbing, high pressure danger! Wait a minute.
2. Warning signs: refers to graphic signs that remind people to pay attention to the surrounding environment and avoid possible dangers, which are composed of yellow and black colors. If you stop, high pressure is dangerous! Beware of electric shock and falling.
3. Indicating sign: It refers to the graphic sign that forces people to take some action or take preventive measures, which is composed of blue. If you must wear a helmet, wear a seat belt and be ventilated.
4. Prompt sign: its meaning is a graphic sign that provides people with some information, and it is composed of green. If you go up and down from now on! , in and out from now on! Work here! Wait a minute.
5. Fire sign: it is a graphic sign that provides people with information about fire control facilities and consists of red. Such as fire extinguishers, above-ground fire hydrants, underground fire hydrants, etc.
6. Other signs: such as guide arrow signs, emergency exit signs, height limit signs and speed limit signs.
(4) Other categories
Such as insulated safety tool cabinets, power frequency high voltage generators, etc.