test

Home>>test

November 2018

September 2018

Grounding Protection

The protective wiring method in which the metal part of the electrical appliance (that is, the metal structural part insulated from the live part) which may be charged after the insulation material is damaged or in other cases is reliably connected by the conductor and the grounding body. The grounding protection system has only phase and neutral lines.

Lightning protection equipment

Lightning protection equipment is through modern electricity and other technology to prevent the equipment being struck by lightning. Lightning protection equipment can be divided into power lightning protection, power protection socket, antenna feeder protection, signal lightning protection, lightning protection testing tools, measurement, and control system lightning protection, earth pole protection.

Surge Protection Device SPD

Surge Protection Device SPD is also named arrester, All surge protectors for a specific purpose are actually a kind of rapid switch, and the surge protector is activated within a certain voltage range. After being activated, the suppression component of the surge protector will be disconnected from the high-impedance state, and the L pole will be turned into a low-resistance state.

August 2018

Surge protective devices SPDs standards & literature

Surge protective devices SPDs standards & literature DIN VDE 0100-100:2009-06 Low-voltage electrical istallations – Part 1: Fundamental principles, assessment of general characteristics, definitions (IEC 60364-1:2005, modified); German implementation HD 60364-1:2008 DIN VDE 0100-410:2007-06 Low-voltage electrical installations – Part 4-41: Protection for safety – Protection against electric shock (IEC 60364-4-41:2005, modified); German implementation HD 60364-4- 41:2007 DIN VDE 0100-443:2007-06 Low-voltage electrical installations – Part 4-44: Protection for safety – Protection against voltage disturbances and electromagnetic disturbances – Clause 443: Protection against overvoltages of atmospheric origin or due to switching (IEC 60364-4-44:2001 + A1:2003, modified); German implementation HD 60364-4-443:2006 DIN [...]

July 2018

Surge protection device basic knowledge

Surge protection device basic knowledge Think of surge protection as a bouncer at a nightclub. He may only let certain people in and quickly tosses the troublemakers. Getting more interesting? Well, a good whole-house surge protection device does essentially the same thing. It allows in only the electricity your home needs and not the unruly over-voltages from the utility—then it protects your devices from any trouble that can occur from surges inside the house. Whole-house surge protective devices (SPDs) are typically wired to the electric service box and located nearby to protect all the appliances and electrical systems in a home. 80 percent of surges [...]

Surge Protection – Frequently Asked Questions

Surge Protection – Frequently Asked Questions What is a Surge Protector and what does it do? The surge protectors that we supply are installed in the main panel box, the heart of your home’s electrical system. They are designed to stop lightning or power surges at the panel, before they enter the rest of your home, unlike the point of use surge protectors that stop a surge after it is already in your house (and next to your walls, furniture, carpet drapes and other flammables)! The panel surge protector diverts all of the energy away from your home [...]

Can lightning rods really avoid lightning

Can lightning rods really avoid lightning LSP reminds that since Franklin invented the lightning rod in the 17th century and reached the end of the 18th century, the lightning rod was widely used and play an important role, which is universally acknowledged. Later practice has further proved that lightning rods and their derived lightning protection strips, lightning protection nets, and lightning protection lines are quite effective for defensive direct lightning strikes. However, many people believe that the lightning rod is a lightning protection device that will not only eliminate the lightning damage but also included more secondary lightning strikes. [...]

Surge protection devices for industrial applications

Surge protection devices for industrial applications Industrial applications include various types of equipment that need to be protected from the effects of surges. They are costly to the company owner: the price may be enormous and the failure, or even replacement, of those devices, would incur a major financial loss, possibly putting the very existence of the company at stake. The key aspects, from the perspective of trade unions, are the employees: they operate electrical equipment and, in the event of a surge, their lives might be at risk. The facts mentioned above, as well as other causes, represent substantial [...]

BS EN IEC 62305 Lightning protection standard

BS EN IEC 62305 Lightning protection standard The BS EN/IEC 62305 Standard for lightning protection was originally published in September 2006, to supersede the previous standard, BS 6651:1999. For a finite period, BS EN/IEC 62305 and BS 6651 ran in parallel, but as of August 2008, BS 6651 has been withdrawn and now BS EN/IEC 63205 is the recognized standard for lightning protection. The BS EN/IEC 62305 standard reflects an increased scientific understanding of lightning and its effects over the last twenty years and takes stock of the growing impact of technology and electronic systems on our daily [...]

November 2018

April 2018

IEC 61643-31-2018 Performance requirements and testing methods

IEC 61643-31-2018 Requirements and test methods for photovoltaic IEC 61643-31: 2018 Low-voltage surge protective devices - Part 31: Requirements and test methods for SPDs for photovoltaic installations IEC 61643-31:2018 is applicable to Surge Protective Devices (SPDs), intended for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are designed to be connected to the DC side of photovoltaic installations rated up to 1 500 V DC. These devices contain at least one non-linear component and are intended to limit surge voltages and divert surge currents. Performance characteristics, safety requirements, standard methods for [...]

back to top