I. Purchaser: Weihai Civil Air Defense Office, Address: No. 2, Renren Road, Weihai City.
Second, the procurement agency: Weihai Lucheng Tendering Co., Ltd.; Address: 3rd Floor, No. 61-4, Junhua Road, Weihai.
Third, purchase number: WHGP2007-051
4. Project Name: Equipment supply and installation of electro-acoustic alarm, terminal remote control and target monitor
Pack one, 42 sets of human anti-electric alarms;
Package 2, 42 remote control terminals for civil air defense alarms;
Package 3, 5 sets of key target monitors for civil air defense.
V. Supplier qualification requirements:
1. An independent legal entity registered in China;
2. The quality of the goods provided is reliable, the performance is reliable, and the technology is qualified;
3. Have a good business reputation and a sound financial accounting system;
4. Have the ability to perform contracts and provide quality services;
5. In the three years prior to participating in this procurement activity, there were no major illegal records in the business activities.
VI. Location of the bidding documents: Weihai Lucheng Tendering Co., Ltd.; Time: June 15 to July 5, 2007, 8:30--11:30; 14:00--17:00 (Beijing time, next with). Price: RMB 100 yuan (if you need to mail and add a postage fee of 50 yuan), you can also send an e-mail, the bidding documents will not be refunded after sale.
7. Starting and ending time of the bid: 8:30 to 9:00 on July 6, 2007.
Eight, the opening time: July 6, 2007 at 9:00.
9. Bid and Bid Opening Location: Meeting Room, 3rd Floor, Baiyun Hotel, Weihai City (No. 23 Dongshan Road, Weihai City).
X. Contact: Zhang Minhua, Lin Lin
contact number
fax telephone
Account name: Weihai Lucheng Tendering Co., Ltd.
Bank of deposit: Weihai Bank of Communications, Huancui Branch
Bank account
1. Dimmable LED High Bay Light
Dimmable LED High Bay Light can be adjusted the brightness of the light, including 0-10v dimmable,Dali dimmable, Triac dimmable and Zigbee dimmable.
0-10V Dimmable:
Used as an early fluorescent dimming system and still used today, 0-10V dimming has been adapted to become a reliable LED dimming control protocol.0-10 V is one of the earliest and simplest electronic lighting control signaling systems; simply put, the control signal is a DC voltage that varies between zero and ten volts. The controlled lighting should scale its output so that at 10 V, the controlled light should be at 100% of its potential output, and at 0 V it should at the lowest possible dimming level.
Dali dimmable:
A basic system could consist of a few light fittings and a switch connected to a DALI group controller. The switch provides on/off control and up/down dimming of the fittings. Minimal configuration is required and ballasts do not need to be individually addressed.A grouped system consists of multiple ballasts individually addressed on a DALI Line Inputs on a Line Controller or a group controller can be configured to provide switching and dimming as required.
SCR Dimmable:
A SCR is a four-layer solid state device that controls current. In the normal [off" state, SCR restricts current to the leakage current. When the gate-to-cathode voltage exceeds a certain threshold, SCR turns [on" and conducts current. A SCR will remain in the [on" state even after gate current is removed so long as current through the device remains above the holding current. Once current falls below the holding current for an appropriate period of time, the device will switch [off". If the gate is pulsed and the current through SCR is below the holding current, SCR will remain in the [off" state.To achieve the dimming effect using SCR dimming technique, first, a RC phase shift is used to delay triggering the gate-to-cathode voltage. There will be a phase-cutting and the Root Mean Squared Voltage VRMS is modified. The symmetric characteristic of DIAC (DIode for Alternating Current) can be used to trigger TRIAC (TRIode for Alternating Current) symmetrically. Then, the dimming effect can be achieved by varying the R1 value that changes the phase angle for conduction.
Zigbee:
Zigbee is a kind of brand-new, focus on low power consumption, low cost, low complexity and low rate of short-range wireless communication technology.Is also a big focus in the embedded application.
Dimmable LED High Bay Light
Dimmable LED High Bay Light,0-10V Dimmable LED High Bay Light,Dali Dimmable LED High Bay Light
Shenzhen Hygea Technology Co.,Ltd. , http://www.hygealedlight.com