As a national excellent enterprise in environment protection, GRG Test detects and identifies the potential environmental and occupational health hazards in the office areas and production areas of power supply bureaus, power supply stations, substations, business halls and other units of the power supply system according to the current effective national standards, industry standards, local standards, as well as the relevant national regulations. Environmental test and evaluation are carried out on potential environmental and occupational hazards such as air pollutants, water pollutants, ash, noise and electromagnetic radiation. It also provides one-stop solutions such as scheme formulation, on-site investigation, sampling, analysis, reporting, evaluation, rectification suggestions and consultation for power system environment and occupational health risk assessment.
Region | Premise | Test Items |
Airtight or unventilated places (limited operation space) | Outdoor cable tunnel, cable trench, pipe well and corridor | Oxygen, carbon dioxide, carbon monoxide, nitrogen, dust, etc. |
Machine room and cable room | ||
Basement | ||
Reference room, sundry room and warehouse | ||
Places where hazardous gas may be produced | Kitchen, garage, drain channel, septic tank, battery room, etc. | Methane, hydrogen, carbon dioxide, carbon monoxide, etc. |
Sulfur hexafluoride equipment room and use area | Sulfur hexafluoride and oxygen | |
Heptafluoropropane protection area and gas cylinder room | Heptafluoropropane | |
Tools room, warehouse and reference room | Formaldehyde, ammonia, dust, etc. | |
Oil warehouse or storage place | Methane, hydrogen, hydrogen sulfide, acetone, etc. | |
Combustible gas warehouse or storage place | ||
Paint warehouse or storage place | Benzene series, ammonia, formaldehyde, etc. | |
Warehouse or storage place for pesticides and drugs | Organophosphorus pesticides, organochlorine pesticides, organonitrogen pesticides, pharmaceutical compounds, etc. | |
Use place of laboratory chemicals: substation simplification room and laboratory | Aromatic hydrocarbons, alkanes, alcohols, etc. | |
Newly decorated rooms | TVOC, formaldehyde, benzene, ammonia and radon | |
Crowded places | Meeting room, training room and business hall | Temperature, humidity, TVOC, formaldehyde, benzene, toluene, xylene, ammonia, inhalable particulate matter, fresh air volume, ventilation rate, etc. |
Office area | ||
Restaurant | ||
Guestroom | ||
Gym | ||
Places where it is easy for bacteria and germs to breed | Medical aid post | Total bacterial count |
Toilet | ||
Kitchen | ||
Air-conditioning room | ||
Places with lighting requirements | Workplaces other than the production plant, instrument panels and mechanical rotating parts, office areas, warehouses and reference rooms | Indoor illumination |
Stairs, corridors, passageways and warehouses | Emergency lighting | |
Power distribution room, substation control room, high voltage room, indoor equipment area, battery room and relay protection room | Safety lighting and standby lighting | |
Guard room, substation site and outdoor parking lot | Outdoor illumination | |
Noise generation places | Communication machine room, monitoring machine room, automation machine room, power distribution room, elevator machine room, air conditioning machine room, information center and pump room | Occupational noise |
Business hall | ||
Substation high voltage room, control room, main transformer area and relay protection room | ||
High temperature workplace | Safety tools room, warehouse, substation (outdoor) and area where the suburban lines go through | Temperature |
Low temperature workplace | Substation (outdoor) and area where the suburban lines go through | |
Place of vibration generation | Elevator machine room, air conditioning machine room, communication machine room | Ambient vibration |
Radiation generation places | Power distribution room, information machine room, automation machine room, dispatching center and other office areas | High frequency electromagnetic field (electric field strength and magnetic field strength), ultra-high frequency radiation (electric field strength and power density), microwave radiation (power density) and power frequency electric field |
Power supply stations and substations (sensitive positions touched by patrol routes of main control room, main transformers, capacitor series reactors, circuit breakers, voltage transformers, etc.) |
Region | Premise | Test Items |
Discharging places of pollutant by its own | Kitchen and canteen | Cooking fume of the canteen |
Domestic sewage discharge outlet | PH, chroma, suspended matter, chemical oxygen demand, biochemical oxygen demand, animal and plant oil, phosphate, ammonia nitrogen, anionic surfactant, etc. | |
Laboratory and wastewater discharge outlet of simplified room | PH, chroma, suspended matter, chemical oxygen demand, biochemical oxygen demand, petroleum, total phosphorus, total nitrogen, volatile phenol, etc. | |
Boundary of office buildings, business halls, substations and other buildings | Boundary noise | |
Outlet of air conditioning chilled water and cooling water | PH, conductivity, turbidity, hardness, chemical oxygen demand, biochemical oxygen demand, petroleum, sulfate, chloride, ammonia nitrogen, total iron, etc. | |
Points affected by external factors | Peripheral ambient air of substations and business halls with industrial pollution sources around them | Sulfur dioxide, nitrogen dioxide, ozone, ammonia, total suspended particulates, inhalable particulate matter, malodorous gas, etc. |
Water intake in the offices, tap water reservoir and tap water outlet | Physicochemical indicators, microorganisms, anions, metals, organic matters, etc. | |
Afforestation soil | PH, moisture, lead, cadmium, copper, zinc, total chromium, arsenic, mercury, etc. |