Sanya room installation works, Sanya room Line transformation room project quotation

Sanya room installation works, electric lines Sanya room renovation, room works offer weak to undertake a full installation of the various cities and counties in Hainan, access control systems, security monitoring, public broadcasting systems, video conferencing systems, car park management systems Barrier network cabling installation works. Interested parties please feel free to inquire. Ground resistance: when the ground system to produce electric current flows into the ground through the ground wire, thereby grounding the surrounding diaspora, this current is called diaspora current, which flows through the soil resistance encountered resistance, called diaspora resistance. Grounding resistance is the resistance of grounding diaspora, the sum of earth line resistance and grounding resistors. Since the latter two resistors is small, relatively negligible, therefore, grounding resistance refers to resistance grounding Diaspora. When installation and construction, in order to reduce ground resistance, usually take more than a single root after grounding and grounding coalition compound, although you can reduce the grounding resistance, but the spacing between the individual grounding produce narrow shield, the shield because of the current diaspora Role and highly limited, it will also increase the resistance, so the spacing between the grounding and the like should be accounted for after OK. Types of ground: in intelligent building due to a variety of systems, each system in order to ensure safe and proper operation, to ensure that all equipment and personal safety, prevent or avoid electromagnetic interference and lightning hazards, we need to set the corresponding grounding system . According to its features, can be divided into the following types: lightning protection device for building a computer system grounding 2. Information 3. Other electrical equipment grounding (including communications) Note: All products new packaging Shipping (can pack installation ). Reasonable prices, quality assurance, engineering quantities required, fashionable, many brands everything. All customers enjoy life after-sales maintenance free! ? Excellent quality, affordable prices? We have carefully for you to do every project! Tel: 18976067262 ?? Lin Company Address: Haikou, Hainan Meilan District diligent way pretty good Building, Room 707 Company Name: Hainan Liansheng Science and Technology Development Co., Ltd.