In the summer, not only must the data center be safe and stable in high-temperature and rainy weather, but also bear the pressure to reduce the overall operating costs of the enterprise. However, many equipment rooms do not include PDUs, UPS, column cabinets, cabinets, etc. The equipment is the same as the single column. The parameters of the PDU are also very unclear. Some even indicate the power socket. This will cause great troubles for the later work: that is, it cannot match the equipment, the non-standard power distribution, the budget is seriously insufficient, etc. The situation is derived from the fact that the bidding parties are not sure how to select the supporting PDU power supply.
First, how does the PDU help the computer room to survive in summer?
Using smart PDUs can help the computer room survive the summer. Smart PDUs, also known as remote control power outlets, are designed to meet the micro-environment monitoring applications in the computer room. On the basis of the traditional computer room power PDU, the current temperature and voltage external temperature and humidity monitoring is added, and the power interface can be remotely and independently controlled.
1. Smart PDUs have irreplaceable advantages over basic PDUs:
Basic PDUs only provide basic power distribution; in addition to providing current, voltage, and protection, Smart PDUs provide advanced features such as power metering, environmental monitoring, and remote port remote control for the entire data center. Effective and reliable operational monitoring management can help reduce data center operating costs, improve uptime, reliability, improve equipment mean time to repair (MTTR), make data center power use more efficient, and enable existing data centers Capacity and asset management.
2, intelligent PDU strong institutional design, to withstand harsh external conditions:
Advanced input cable connector, stress-relieving and durable, is more powerful than the general-purpose, low-cost clamp mechanism, with a solid side and no holes or vents to prevent particles from contacting the inner conductor without short-circuiting. Cooling safety; small space occupation, good access characteristics, airflow characteristics, easy to physically install; withstand high ambient temperature (60C/140F), even in the case of high density, continuous loading, can achieve safe operation; The output socket wiring is alternately designed to facilitate cable bundling and load balancing efficiency.
3. With strong monitoring and management functions, ensure the safe and efficient operation and maintenance of summer operation:
Socket port output stage power monitoring detects actual redundancy, implements effective load balancing, and provides detailed status of each power supply for the server; Gigabit Ethernet ports with secondary network connections as backups to ensure monitoring reliability and IT Simultaneous insight and sharing of network and building management, efficient and intuitive Power IQ management interface, real-time inspection of equipment energy consumption, hotspots and PUE, balancing heat and power loads.
Second, how to choose PDU power?
(1) Choose the product that suits you according to your specific situation;
(2) Select the products of regular manufacturers (of course, some manufacturers may also be regular manufacturers, but PDU may not be its superior product. It should be cautious when choosing. Although a veterinarian is also a doctor, he can't think that he is a famous doctor as long as he is a doctor. Look for him);
(3) The state has relevant quality inspection and certification for various products. When selecting PDU products, we must first look at the qualifications of the manufacturer, then look at the quality certification of the products, and choose a regular product with higher safety;
(4) After the above, we will understand the after-sales service of related products (no matter how good the product is, there is no guarantee that there will be no bad time, so after-sales service is also a key issue, and the after-sales service cannot be said only by mouth, it is recommended to land. Rooting, paying for words)
Third, the focus of the PDU construction in different periods of the computer room construction
Small method of PDU selection:
(1) Circuit power + safety margin of the distribution branch of the head cabinet = the sum of the power of the PDU on this line;
(2) Number of devices in one cabinet + safety margin = number of jacks of all PDUs in the cabinet. If there are two redundant lines, the number of PDUs should be doubled with the parameters.
(3) Distribute high-power devices in different PDUs to balance the phase currents;
(4) Customize the hole type of the PDU based on the device plug that cannot be separated from the power line. If the device plug that can be separated from the power line is not compatible, replace the power cord to solve the problem;
(5) The equipment density in the cabinet is high. The PDU is suitable for multi-jack vertical installation. The equipment density in the cabinet is low. It is advisable to use PDUs with less jacks. Finally, the PDU should be given a separate quotation budget to avoid serious budget shortage.
1. Installation and commissioning period:
(1) The power of the power distribution socket in front of the cabinet should match the circuit power of the distribution unit of the column head cabinet and the power of the PDU, otherwise the power consumption index will be lowered;
(2) The horizontally installed PDU should reserve the U-bit of the PDU. When installing the cabinet, the position of the side rails of the cabinet should be aligned with the installation size of the PDU.
(3) The double-circular European standard plug cannot be directly inserted into the universal hole, so the grounding will be suspended, which is very dangerous. The correct way is to replace the plug or use the embedded European standard jack, and then do not use the European standard to convert the national standard conversion line.
2, the operating period:
(1) Pay attention to the temperature rise indicator, that is, the temperature change of the device plug and the PDU jack;
(2) If the PDU with remote monitoring can pay attention to the current change of the PDU to judge whether the device works normally;
(3) Make full use of the cable management device of the PDU to decompose the outward escape force of the device plug to the jack.
3, custom selection points
(1) Customized PDU process: how much total current (calculated by about 50% redundancy based on the sum of output device power);
(2) Input part: the length of the cable (usually 2-3 meters is enough);
(3) The wire diameter is determined by the total current. The plug of the power take-off is determined by the total current and the front-end power supply environment; the number of output sockets, several for each socket, and more for the domestic universal interface;
(4) Protection function selection (lightning protection, overload, digital display, power indication, dual power supply automatic switching, remote monitoring, etc.);
(5) Installation method selection (horizontal installation or vertical installation)
(6) Product material: steel plate material or profile housing.
Hand Blenders 2 In 1
Hand Blenders 2 In 1
Hand Blenders 2 In 1 including plastic or stainless steel stick Blender and breaker cup.
Description for Hand Blenders 2 In 1
200W,250W, 300W,700W
One, two, three, five speeds optional
600ml, 800ml breaker cup optional
Slim ergonomic design
Carton box: 44.5*33.5*45cm 16pcs/ctn
20'GP: 6912pcs 40'HQ: 16448pcs
