Operation

The AD range of digital LHD cables contains a pair of twisted, low

resistance, tri-metallic conductors sheathed with advanced

temperature sensitive polymers. The cable operates by softening the

insulation of the conductors, the tension of the twisted conductors then

causes the two cores to fuse together. The sensor cable provides a

sImple switch operation which when used with a combination of end-ofline

(EOL) monitoring and alarm trigger resistors can signal an alarm

to any fire monitoring equipment through any monitored input i.e.

conventional detection zone or addressable interface unit.

Location Control Unit

Additional to the LHD sensor cable, an optional digital location control

unit which monitors the sensor cable and can identify along the length

of the sensor cable where an alarm condition has occurred, is also

available.

1997年制定的GA161-1997《防火封堵材料的性能要求和试验方法》行业标准在当时对规范该类产品的生产起到了积极作用，但在多年的使用中也发现该标准存在不少问题和局限，知名AD88N感温电缆阻燃护套88度报警生产商,火警探测、报警设备，与国外先进标准相比存在较大差距，上海道夫自动化仪表工程有限公司,道夫自动化仪表工程,已不能适应技术进步和消防产品监督的需要，知名AD88N感温电缆阻燃护套88度报警生产商,绝缘护套相关，迫切需要进行全面修订和完善。GB23864-2009《防火封堵材料》国家标准的制定和发布实施使各类防火封堵材料有了统一的技术标准，知名AD88N感温电缆阻燃护套88度报警生产商,原装进口火警探测、报警设备制造商，对促进我国防火封堵材料产品的研发和应用，确保建筑物的防火安全具有重要作用。

AD88 range

AD88

AD88N

AD88P

AD88SS

Alarm temperature

88°C (190°F)

Outer coating

PVC

Nylon

Polypropylene

Stainless steel over PVC

Outer colour

White

Black

White

White

Outer diameter

3.6 mm (±0.12 mm) 0.142 in. (±0.005 in.)

4.44 mm (±0.12 mm) (0.175 in. (±0.005 in.)

4.5 mm (±0.12 mm) (0.177 in. (±0.005 in.)

4.1 mm (±0.12 mm) (0.161 in. (±0.005 in.)

2 × tri-metallic conductors Ø 0.912 mm (0.036 in.)

Ambient temperature

69°C (156°F) max.

Installation temperature

−10°C (14°F) min.

Operating temperature

−40°C (−40°F) min.

知名消防感温电缆PROTECTOWIRE厂家直销_提供消防感温电缆PROTECTOWIRE相关-上海道夫自动化仪表工程有限公司

Bend radius

50 mm (2 in.) min., extended to 100 mm (4 in.) for low temperature environments

Voltage rating

30 VAC, 42 VDC max.

Insulation rating

1 kV tested protective outer coat

Resistance

89.5 Ω/km (27.3 Ω/1000 ft.) max. per conductor at 20°C

Capacitance

<85 pF/m (<26 pF/ft.)

Inductance

<1.72 μH/m (<0.52 μH/ft.)

专业GSC-03-21441-00戈尔电缆生产厂家_专业轨道交通设备器材-上海道夫自动化仪表工程有限公司

　　目前，中国的高效电机制造技术已经和世界接轨。去年，中国电机制造企业南阳防爆集团就在全球超高效电机能效大赛中获得“SEAD国际效率奖章”。不过，中国的高效电机市场占有率仍有很大提升空间。“高效电机市场占有率相对较低的首要原因是终端用户决策者对高效电机节电潜力和投资回收期的认知不足。”国际铜业协会中区总裁周胜提出：“推广一种高性价比的高效电机解决方案(例如铸铜转子解决方案)，对于提高我国电机行业能效水平具有重要意义。”