Question 2: plumbers belong to which industry plumbers belong to the construction industry.
Plumbers are plumbers (plumbers) and electricians in general, referred to as plumbers and electricians. Plumbers are construction workers who install some simple circuits and water lines on the site. Plumbers are divided into two kinds, sub-installation plumbers and maintenance plumbers. Installation of plumbers is mainly to do civil construction of the electrical buried water supply and drainage fire bridge installation, but also to do decoration, such as home furnishings. Maintenance plumbers are hotels, schools and properties recruited by the plumbing and electrical maintenance workers. The former is more tired, low-tech, basically physical labor. The latter is relatively easy, but the technical content is not high.
Question 3: weak electricity installation belongs to the nature of what industry baike.baidu/view/98464?fr=aladdin Weak electricity generally refers to the DC circuit or audio, video lines, network lines, telephone lines, DC voltage is generally within 36V. Household appliances such as telephones, computers, television signal input (cable lines), audio equipment (output terminal lines) and other electrical appliances are weak electrical equipment.
Strong and weak electricity conceptually, generally[1] is easy to distinguish, the main difference is the different uses. Strong electricity is used as a power source. Weak electricity is used as a signaling electricity. Voltage is not a way to distinguish between strong and weak electricity.
Strong power to KW (kilowatts), MW (megawatts), the voltage to V (volts), KV (kilovolts), the current to A (amps), kA (kiloamps); weak power to W (watts), mW (milliwatts), the voltage to V (volts), mV (millivolts), the current to mA (milliamperes), uA (microamps), and thus the circuit can be composed of printed circuit or integrated circuit.
Stronger power supply.
Strong power in the high-frequency (hundreds of KHz) and medium-frequency equipment, but the voltage is higher, the current is also larger. Due to the development of modern technology, weak power has penetrated into the field of strong power, such as power electronics, wireless remote control, etc., but these can only be counted as a strong power in the weak control part, it is still different from the controlled strong power.
2 classification editing building in the weak power there are two main categories: one is the national provisions of the safety voltage level and control voltage and other low-voltage electrical energy, AC and DC points.
Intelligent systems for building equipment automation system (BA), security systems (SA), communication network systems (CA), office automation systems (OA), automatic fire alarm and fire linkage (FA) and other systems - that is, we often say that the 5A system to centralized monitoring, control and management for the purpose of constituting a comprehensive system; a variety of data collection, control, management and communication within the family The control or network system and other lines, it is called intelligent lines (also known as home improvement in the said weak power).
Question 4: air conditioning installation belongs to which industry? A company that is air conditioning installation is a company that belongs to is what industry category? Air conditioning installation belongs to the building installation construction companies.
Belongs to the category of construction industry.
Question 5: air conditioning installation belongs to several categories of occupations 1, refrigeration equipment operation operation operations: is the operation and management of cold storage. Commercial, medical institutions, food, meat processing, the processing of frozen food and other industries such as refrigeration, preservation and other equipment operators apply.
2, refrigeration equipment installation and repair operations: refers to the installation, commissioning, maintenance of cold storage; refrigerator, freezer maintenance. Large or small refrigeration equipment (eg: cold storage) of the installation, commissioning, repair, maintenance and other work is applicable.
3, air conditioning equipment operation operations: refers to the operation and management of central air conditioning, including summer cooling and winter heating. Used for institutional units, office buildings, dormitories, large shopping malls, office buildings, commercial and residential buildings; residential neighborhoods, high-grade residential and other use of central air-conditioning operation personnel applicable.
4, air conditioning equipment installation and repair operations: refers to the central air conditioning equipment installation, maintenance, commissioning. Production, use of central air-conditioning equipment units; engaged in the installation, repair, maintenance of central air-conditioning professional maintenance personnel applicable.
Air conditioning installation belongs to the high-altitude work, with a certain degree of danger.
Question 6: Decorative engineering belongs to what industry Decorative industry should be part of the construction industry, can also be the home industry, but now this piece should be separated out as decorative or decorative industry!
Question 7: How many occupations are firefighters and installers classified as firefighters and building installers according to the insurance industry's personnel category, which is only higher than the hazard level of the mining and shipping industry
Question 8: What is the industry of elevator installation? What kind of engineers are needed for elevator installation? Heavy machinery industry, the need to have a special elevator installation qualification, to test
Question 9: Electrical installer is to do what work Electrical installation is the abbreviation of electrical equipment installation. Mainly: generators, motors, etc., but also includes the installation of switchgear, bus, a variety of transformers and other substation equipment, broadly speaking, also includes transmission line installation.
Question 10: What is the main work of the air conditioning installer? According to customer requirements to select the indoor and outdoor installation points, the installation of indoor unit hanging plate, playing wall holes, piping arrangement, (will be copper pipe, drain pipe, wire, with wrapping tape tied), the installation of indoor and outdoor units, piping connection, indoor and outdoor unit connection, indoor and outdoor machine electrical wiring installation, drain pipe installation. Final test run, user guidance, enthusiastic answer to user questions.