Catalog of electrical testing:
I, electrical testing of distribution equipment
II, electrical testing of line laying
III, electrical testing of lighting, switches, sockets installed
IV, electrical testing of other provisions
V, electrical testing of the conditions, means and Content
I. Electrical testing of distribution equipment
1, visual inspection of the transformer room installation location, fire rating and hole plugging; transformer setup, appearance quality, component integrity and fire prevention measures; high and low-voltage cables (wires) laying.
2, electrical inspection using infrared tandem instrumentation to detect the temperature of each contact of the transformer winding and high and low cable (line) and use temperature spectrogram.
3, visual inspection of high (low) voltage distributor settings, installation quality, cabinet wiring, high (low) pressure cable (line) joints, grounding, complete accessories and fire prevention measures.
4. Measure (or read) the voltage (flow) value of each phase line using conventional meters. The value of the unbalanced current of the N line, PE line with or without abnormal current and grounding resistance value.
5, the use of infrared tandem instruments to measure the temperature of the wire and its connection points, switch contacts and take the temperature spectrum.
Second, electrical inspection of the line laying
Electrical inspection of the different power supply location of the dark application, open blessing, electrical fire hazards exist in the installation and use of the direct application and wear a protective tube of the line.
Three, electrical inspection of lighting, switches, socket installations
Check for electrical fire hazards present in the installation and use of various lighting equipment.
IV. ELECTRICAL TESTING OTHER PROVISIONS
Check, the installation of switches in different electrical locations. , electrical fire hazards in sockets.
V. Electrical test conditions, meaning and content
1. Tests and measurements should be carried out in a thermally stable state under the condition that the load on the electrical equipment and wiring exceeds 1n.
2. It shall be carried out on site with the relevant technical personnel of the party to be inspected.
3, the use of modern high-tech equipment, such as infrared thermometer temperature measurement, infrared camera scanning, thermal imaging camera thermal spectrum and ultrasonic detectors to measure abnormal high temperatures, spark discharges, and other conventional electronic instruments, meters, such as voltmeters, ammeters, detectors, grounding resistance tester, the true RMS ammeter, etc., for the measurement of operating parameters of running electrical facilities, and the use of intuitive methods. In accordance with the relevant national technical specifications for the operation of high- and low-voltage electrical installations, installation, use, maintenance, and electrical fire safety testing of maintenance conditions.