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The installation of suspension insulator strings should meet the following requirements: 1. Except for design reasons, the suspended insulator string should be vertical to the ground. When conditions ...

Composite insulator is also called synthetic insulator. Its main structure generally consists of three parts: shed sheath, fiberglass core rod and end fittings. The shed sheath is generally made of or ...

1. Power outage cleaning Power outage cleaning means that after a power outage, workers climb poles and wipe with rags. If it cannot be wiped clean, you can wipe it with a damp cloth or scrub it with ...

Insulator zero-value detection is an effective method to determine whether the performance of an operating insulator meets the conditions for continued operation, to discover possible low-value insulators that have not yet been broken down, and to reduce the occurrence of sudden failures. Common insulator zero value detectors include insulator resistance testers, insulator distribution voltage testers, etc. So, how to choose one? ...

Since the atmospheric pressure is low in a high-altitude environment, discharge is very easy to occur, and the arc is thick. After the AC crosses zero, the circuit is very prone to discharge, and the arc is easy to re-ignite and is difficult to extinguish. Therefore, the insulation of power transmission and transformation equipment operating at high altitude and low pressure should be strengthened. Its influence must be fully considered when calculating insulation coordination, and the pollution lightning voltage should be appropriately increased. Generally, when the altitude is above 3000 m, the pollution voltage value should be considered to be increased by about 25% accordingly. ...

    Cold-shrinkable cable terminals are made of elastomer materials (commonly used silicone rubber and ethylene-propylene rubber) that are injection vulcanized in the factory. They are then enlarged and lined with plastic spiral supports to form various cable accessories. During on-site installation, these pre-expansion pieces are placed on the treated cable ends or joints, and the internally supported plastic spiral strips (supports) are pulled out and pressed against the cable insulation to form a cable accessory. Because it relies on elastic retraction at room temperature, rather than heating and shrinking with fire like heat-shrinkable cable accessories, it is commonly known as cold-shrinkable cable accessories. ...

Power cable accessories are products that connect cables to power transmission and distribution lines and related power distribution devices. They generally refer to the intermediate connections and terminal connections of various cables in cable lines. Together with the cables, they form a power transmission network. ...

Dear Valued Clients, As we approach the festive season, we would like to extend our warmest wishes to you. At DUWAI, we want to express our heartfelt gratitude for your continued trust and support thr ...

What do heat shrink tube specifications mean? Heat shrinkable tubes are divided into many types according to different properties and uses, and each type of heat shrinkable tube has many sizes. Insula ...

Heat shrink tubing has a unique function, it can shrink when exposed to heat, but what is the general shrinkage rate of heat shrink tubing? Non-professionals may be confused at first. First, let’s und ...

Heat shrinkable tubes can achieve long-term protection and insulation effects in a 600V voltage environment for a long time. They have strong anti-aging properties, are soft and are easy to use. And t ...

Heat shrinkable tubes have many uses, but many users don’t know much about the flame retardant grade of heat shrinkable tubes. Many comrades only like to look at the conclusion and not the process. So ...

Heat shrink tubing is used as an insulating sleeve. What is the insulation performance of heat shrink tubing? When I use heat shrink tubing as an insulating sleeve, how do I determine whether it meets ...

Heat shrinkable tubing has excellent insulation properties and excellent service life, so it is widely used in the electronic and electrical industry, mainly for insulation protection of wire harnesse ...

Heat shrinkable tube is a kind of casing that can be heat-shrinked. Heat-shrinkable tubes are different according to their uses and properties, so the materials used are also different. Today, the edi ...

What is heat shrink tubing? The literal meaning of heat shrink tube is very easy to understand. It is a sleeve that shrinks when exposed to heat, so it is called heat shrink tube for short. Next, let’ ...

Because heat shrink tubing has the function of heating and shrinking, there are two inner diameter sizes. One is the diameter before shrinkage, and the other is the diameter after shrinkage. Many user ...

Heat shrinkable tubes come in many colors, including black, red, yellow, blue, green, orange, purple, white, and transparent. However, the biggest difference in performance is between black and transp ...

Transparent heat shrink tube refers to a general term for transparent heat shrink tubes, but transparent heat shrink tubes are made of many kinds of materials. Today, the editor of DUWAI will learn ab ...

Teflon heat shrink tube is the heat shrink tube with the best temperature resistance among heat shrink tubes. What are its advantages? Please follow the DUWAI editor to explain in detail. 1. High temp ...

What is Teflon heat shrink tubing? Teflon heat shrink tubing is a heat shrink sleeve made of Teflon, so it is called Teflon heat shrink tubing. Also known as polytetrafluoroethylene heat shrink tubing ...

Teflon heat shrinkable tubing has a high temperature resistance of 260°C and is resistant to most oils and acid and alkali solutions. How is such heat shrinkable tubing with such excellent performance ...

Everyone is already very familiar with glued heat shrinkable tubes, but many users still don’t quite understand how to choose the appropriate specifications and models during use. Below, DUWAI’s edito ...

The quality of double-wall heat shrink tubing needs to be identified from two dimensions, and compared before and after shrinkage. 1. Before shrinking, you can focus on comparing the following factors ...