15kA Secondary Power Surge Protector Installation:
• Installation as defined in the standard is simple enough, the device is connected with cables to and from the unit no longer than a meter in total, and a short path to earth will ensure the effective discharge of the surge to earth.
• If a Type 2 SPD is installed and cable lengths are less than 10m, then there is no longer a requirement to fit Type 3 surge protected extension leads. If greater than 10m then type 3 surge protection should be fitted.
• For the most part a simple two pole device for single phase TT or TNS will be enough. In TNCS systems a single pole unit may be sufficient as only the live conductor comes to the property that can bring a threat from outside influences affecting that supply.
Types of Surge Protection Devices (SPD):
Type 1 SPD:
The Type 1 SPD is recommended in the specific case of service-sector and industrial buildings, protected by a lightning protection system or a meshed cage. It protects electrical installations against direct lightning strokes. It can discharge the back-current from lightning spreading from the earth conductor to the network conductors. Type 1 SPD is characterized by a 10/350 µs current wave.
Type 2 SPD:
The Type 2 SPD is the main protection system for all low voltage electrical installations. Installed in each electrical switchboard, it prevents the spread of overvoltage in the electrical installations and protects the loads. Type 2 SPD is characterized by an 8/20 µs current wave.
Type 3 SPD:
These SPDs have a low discharge capacity. They must therefore mandatorily be installed as a supplement to Type 2 SPD and in the vicinity of sensitive loads. Type 3 SPD is characterized by a combination of voltage waves (1.2/50 μs) and current waves (8/20 μs).
Our service:
• Pre-sale Services:
1. Provide free consulting, to resolve the confusion from customers.
2. Mining and carefully study customer's needs, provide detail and suitable design solutions.
• In-sale Services:
1. Try best to meet the reasonable demands by customers.
2. Cooperate friendly with client and satisfy our clients with best quality SPD.
• After-sale Services:
1. Provide 2-year guarantee for products.
2. A complete after-sale service system to help customers resolve the problems during the using time.
Company profile:
Wenzhou Britec Electric Co., Ltd. is a professional engaged in SPD products research and development, design, production and service in the integration of modern professional surge protection production enterprises, production base is located in Yueqing, Zhejiang, China. With OEM/ODM high standard production workshop, has a new standard of high-end production equipment, perfect supporting factory layout is reasonable, the spacious production workshop, according to the international surge protector factory standard production design, is the domestic strong r & d manufacturers.
Shipping:
Our certifications:
FAQ:
Q1: What is MOQ?
A: 100pcs.
Q2: How to ship?
A: By sea, by air or express.
Q3: How to place a order?
A: Place order with saler; Make payment for deposit; Goods are finished, inform buyer to make payment for balance; Delivery.
Q4: What's your payment terms?
A: For samples, T/T 100% as deposit. For bulk orders, T/T 30% as deposit and T/T 70% before delivery.
