INSTRUCTIONS FOR INSTALLATION AND MAINTENANCE
安装和维护说明手册
D0578-02-ZH
8/100
AREVA T&D S.p.A. – Via Meucci, 22 30020 Noventa di Piave (VE) ITALY – Tel. : 39 0421 309511 – Fax : 39 0421 65254
Subsidiary of AREVA T&D Italy SpA (AREVA group) with registered office in Via Meucci, 22 30020 Noventa di Piave (VE) - ITALY, under Art. 2359 of the Italian Civil Code.
2. DESCRIPTION
概述
2.1 GENERAL
总论
The AREVA disconnectors of the series S2DA (without earthing switch) and S2DAT
(with earthing switch) are of two-insulator type, with central disconnection.
S2DA
系列（无接地开关）和
S2DAT
系列（一个接地开关）
AREVA
隔离开关均为双
绝缘子，中央断开型。
The main female contacts of these disconnectors are sets of contact blades that are
pressed by springs.
这些隔离开关的主要雌触头均为弹簧压紧的触头组。
This arrangement ensures
adequate pressure when the male contacts penetrate.
这一结构确保雄触头合入时有足够的压紧力。
The contacts couple with a sliding movement and the contact making is self-cleaning
and self-tightening; this ensures the best behavior in the case of stress due to short
circuit currents.
触头以滑动形式偶合，而且触头的构造具有自洁和自紧功能。这一特点在存在短路电
流引起的应力时确保其具有最佳性能。
The support bases are in hot-zinced steel, resistant to the heaviest stress (stress on
line terminals, stress due to short-time currents, etc.).
支承底座为热镀锌钢板制造，能承受强应力（接线端子应力，短路电流引起的应力等
）。
All elements through which current flows have been standardized and tested
with short-circuit current.
所有通流部件皆为标准化产品，并通过短路电流测试。
The equipment is constructed in compliance with the following standards:
本设备按下列标准制造
:
Italy
意大利
CEI EN 62271-102;
US
美国
ANSI C37 30-37, NEMA SAG 06;
UK
英国
BS 5253;
Europe
欧洲
IEC
62271-102.
For better understanding, the examination of the figures of this manual should be
always combined with the careful study of the DIN-… installation drawings that
concern your specific order.
以下文字可针对数种类型的设备，为更好理解，查阅本手册图例时，应结合仔细研究
与你特定定单相应的安装图（图号
DIN-…
）。
