About admin

This author has not yet filled in any details.
So far admin has created 77 blog entries.

October 2021

September 2021

August 2021

May 2021

April 2021

October 2020

August 2020

July 2020

June 2020

May 2020

Talk about some issues of surge protective devices SPDs

Chinese surge protective devices (SPDs) mass-production based on Dehn, OBO, and Citel’s structural design. However, with the development of the technology and practice, the accumulation of mature product is constantly changing, such as Dehn, Phoenix, Raycap, OBO, Citel, Hakel, Saltek surge protector, always keep coming up with new styles and models. These changes not only do some fashionable change, differentiation, but there is a lot of the structure and function of the optimization. But look at most of China SPDs factories, they still use an outdated structural design such as OBO style

April 2020

Lightning and surge protection for 5G telecom base station and cell sites

Increasing demand for 5G technology means that we need higher transmission capacities and better network availability. New cell site locations are constantly being developed for this purpose – the existing network infrastructure is being modified and expanded. There is no question about the fact that cell sites must be reliable. Nobody can or wants to risk their failure or restricted operation.

Surge protection for electric mobility & EV Charger & electrical vehicle

With the increasing proliferation of electric vehicles and the new “fast charging” technology, the need for reliable and safe charging infrastructure is also increasing. Both the actual charging devices and the connected vehicles themselves need to be protected against overvoltages, as both have sensitive electronic components.

March 2020

December 2019

November 2019

October 2019

September 2019

Requirements for Electrical Installations, IET Wiring Regulations, 18th Edition, BS 7671:2018

The arrival of the 18th Edition of the IET Wiring Regulations further reshapes the regulatory landscape for electrical contractors. Surge protection devices (SPDs) are designed to prevent electric shock and having excess voltage damaging the installation's wiring infrastructure.

August 2019

July 2019

March 2019

UL 1449 4th Edition Standard for Surge Protective Devices

The newly issued UL 1449 Standard for Surge Protective Devices for safety and is the preferred standard for all AC surge protection devices (SPDs).Requirements that cover surge protective devices (SPDs) designed for the repeated limiting of transient voltage surges as specified in the standard on 50 or 60 Hz power circuits not exceeding 1000 V.

February 2019

November 2018

Surge Protection Device for Led Street Lightings

Surge Protection Device for Led Street Lightings, LED technology has become the reference technology for lighting, mainly because of four characteristics: efficiency, versatility, energy savings and longer life. In spite of these benefits, the technology has a number of drawbacks: Higher cost of implementation (initial investment) and internal electronics (LED optics and drivers), much more complex and sensitive to overvoltages than in the case of traditional light sources.

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.